Operating manual M1501 SERIES - English SEFELEC REFERENCE PENT0435

Transcription

1 M1501 SERIES - English SEFELEC REFERENCE PENT0435

2 WARRANTY SEFELEC warrants that units are free from defects in material and workmanship. SEFELEC warrants also that, when properly used, that units will perform in accordance with specifications of this manual. If within one year after original delivery it is found not to meet this standard, it will be repaired at no charge in SEFELEC service facility in Lognes. Changes in the unit not approved by SEFELEC will cancel this warranty. SEFELEC will not be liable for any indirect damages resulting of the use of the unit. This warranty is in lieu of all other warranties.

3 TERAOHMMETER PICOAMMETER MODELS: M1501P, M1501M and M1501U The unit combines in one compact assembly the insulation resistance and low current measurement functions. Its use has been simplified by the use of a liquid crystal graphic display (LCD) and a keypad. The M1501P unit is fully programmable by IEEE 488 bus. The M1501M model is identical to the M1501P except for the IEEE488 bus. The M1501U model is showing reduced specifications. The insulation resistance measurement is made with DC voltages from 1 volt to 1500 volts. (from 10 to 1500 VDC for the M1501U) The measurement range goes from 100 (resolution) to 2020 T (5 k to 20T for the M1501U). The low current measurement is made either by using the internal DC voltage or by using an external source. The current measurement range goes from 0.01 pa (resolution) to 20 ma. (50pA to 20 ma for the M1501U). The test parameters can be stored in 10 memories in Teraohmmeter mode as well as in Picoammeter mode. M1501 Version P-M-U Revision I 2

4 IMPORTANT TO READ BEFORE OPERATING THE UNIT Warning: This unit must be used by qualified people. Every precaution for the use of units connected to the main must be taken during its use. In particular, this unit must be connected to earth. The specifications of this manual, the correct operation of the unit as well as the operator s security are guaranteed only when the supplied accessories (TE17, CO19) are used. The measurement probes can include limitation or protective elements, therefore it is forbidden to modify without written agreement from SEFELEC company. In case of use under other conditions than the one specified in this manual, the security of the user will be in danger. This unit can supplied hazardous voltage and current for human body. Follow the safety rules regarding the high voltage devices operation. Be always sure that the High Voltage presence lamp is switched off before connecting or disconnecting specimen to be measured. M1501 Version P-M-U Revision I 3

5 CONTENTS: Introduction 3 Contents 5 Specifications for M1501P & M 7 Specifications for M1501U 9 SECTION I : OPERATION 1-1 : Description of the front panel 12 I-1-1 : description of the keys : description of the display 13 I-1-3 : selection of the language : description of the output terminals : Switching on the unit 1-2-1: preliminary instructions : switching on : connections to the sample under test : precautions to be observed when measuring : Functions of the unit : configuration function : measurement function : Measurement of an insulation resistance : measurement voltage : threshold : timer : range : parameters memorization : measurement : Low current measurement 1-5-1: test voltage : threshold : time : range : parameters memorization : measurement 33 M1501 Version P-M-U Revision I 4

6 1-6 : Use in remote programming mode ( bus IEEE488) 1-6-1: introduction : IEEE488 specifications : addressing : table of programming codes : description of codes : use of the service request interface function (SRQ) : definition and operation of the error codes : syntax rules for programming : example of program 49 SECTION II : options description II-1: Option 01: Temperature and relative humidity measurement 54 II-2: Option 02 : 0-10 volts analog output 59 II-3: Option 03 : PLC interface 65 II-5: Option 05: Measurement data storage 74 II-6: Option 06 : Megohm per kilometer measurement 82 II-7: Option 07 : RS232 interface 85 Sefelec 5

7 SPECIFICATIONS: Measurement voltage: (models M1501 P and M). from 1 to 1500 volts DC by 1 volt step. Accuracy : +/- (0.5%+ 0.5 V). Positive pole on the HV connector, negative pole on the guard connector,with the possibility to connect the positive or the negative pole of the HV to the Earth.. Dynamic stability : > 1.10E-6 for delta V of the main = +/- 15 %. Nominal current : 1mA per volt (+/-0.5mA) from 1 V to 10 V 9 ma (+/- 10%) from 11 V to 1000 V 5mA(+/-10%) from 1001 V to 1500 V. Maximum intensity in the measurement circuit : 20 ma +/- 10 % ( in option08 : 3 ma). Temperature coefficient : 0.001% / C. Ripple : +/- 100 mv peak to peak for I = 10 ma. Band noise (0.01Hz to 10 Hz) : 100 µv max (20 C). Monitoring of the test voltage by the microprocessor with alarm in case of exceeding the tolerances. Discharge current limited by a resistor of 2.2 kohms in series with the discharge relay Teraohmmeter measurement ranges (models M1501 P and M):. From 100 ohms to 2000 Teraohm in 9 current ranges. Digital display on 2000 digits. With a test voltage of 10 volts : from 10 3 to ohms 100 volts: from 10 4 to ohms 1500 volts: from to ohms Nota : 2,000,000,000 Mohms = 2,000,000 Gigaohms = 2,000 Teraohms -2 x ohms. Accuracy : ( D = 1 display digit and Vtest = measurement voltage from 1 to 1500) +/- ( Accuracy of the current range + (50 / Vtest)% +1D) of the reading value. Measurement threshold:. Setting of a numeric value for a resistance threshold from kohms to 2020 Tohms. Indication on the LCD display if greater or lower than the threshold. Timer:. Setting of a test time from 1 to 999 seconds by steps of 1 second. If the test time is set to 000 the unit will stay permanently in measure Sefelec 6

8 Picoammeter measurement ranges (models M1501P & M1501M):. from 0.01 pa (resolution ) to 20 ma in 10 ranges RANGE MIN VALUE RESOLUTION PRECISION at 25 C %lecture + offset 20 pa ** 00.50pA 0.01 pa fa 200 pa ** pa 0.1 pa pa 2nA na 1 pa pa 20 na na 10 pa pA 200 na na 100 pa pa 2uA ua 1nA na 20 ua ua 10 na nA 200 ua 019.8uA 100 na na 2mA ma 1 ua ua 20 ma ma 10 ua uA NOTA: 1 pa = na = 0.000,001 ua = 0.000,000,001 ma =1x10-12 A ** : ranges not available in CAPACITY modes. Temperature coefficient : +/- 0,1 %/ C. Positive and negative current measurement with signe indicator digits display. Automatic or manual range searching. Input impedance : range 20 ma : 9 ohms 1% 2 ma : 90 ohms 1% other : 9 kohms 1% Measurement threshold :. Setting of a numeric value for a current threshold from ma to pa. Indication on the LCD display if greater or lower than the threshold. Timer:. Setting of a test time from 1 to 999 seconds by steps of 1 second. If the test time is set to 000 the unit will stay permanently in measure Sefelec 7

9 Measurement voltage: (model M1501 U). from 10 to 1500 volts DC by 10 volts step. Accuracy : +/- (0.5%+ 0.5 V). Positive pole on the HV connector, negative pole on the guard connector,with the possibility to connect the positive or the negative pole of the HV to the Earth.. Dynamic stability : > 1.10E-6 for delta V of the main = +/- 15 %. Nominal current : 2 ma (+/- 10%) from 10 V to 1500 V. Maximum intensity in the measurement circuit : 3 ma +/- 10 %. Temperature coefficient : 0.001% / C. Ripple : +/- 100 mv peak to peak for I = 3 ma. Band noise (0.01Hz to 10 Hz) : 100 uv max (20 C). Monitoring of the test voltage by the microprocessor with alarm in case of exceeding the tolerances. Discharge current limited by a resistor of 2.2 kohms in serie with the discharge relay Teraohmmeter measurement ranges (model M1501 U):. From Mohms to Tohms in 8 current ranges. Digital display on 2000 digits. With a test voltage of 10 volts : from to ohms 100 volts: from 10 4 to ohms 1500 volts: from to ohms Nota : 2,000,000,000 Mohms = 2,000,000 Gigaohms = 2,000 Teraohms -2 x ohms. Accuracy : ( D = 1 digit and Vtest = measurement voltage from 10 to 1500) +/- ( Accuracy of the current range + (50 / Vtest)% +1D) of the reading value. Measurement threshold :. Setting of a numeric value for a resistance threshold from Mohms to Tohms. Indication on the LCD display if greater or lower than the threshold. Timer:. Setting of a test time from 1 to 999 seconds by steps of 1 second. If the test time is set to 000 the unit will stay permanently in measure Sefelec 8

10 Picoammeter measurement ranges (model M1501 U):. from 50pA with a 1 pa resolution to 20 ma ( internal source limited to 3mA) in 8 ranges: RANGE MIN VALUE RESOLUTION PRECISION at 25 C %lecture + offset 2nA na 1 pa pa 20 na na 10 pa pA 200 na na 100 pa pa 2uA ua 1nA na 20 ua ua 10 na nA 200 ua 019.8uA 100 na na 2mA ma 1 ua ua 20 ma ma 10 ua uA NOTA: 1 pa = na = 0.000,001 ua = 0.000,000,001 ma =1x10-12 A. Temperature coefficient : +/- 0,1 %/ C. Positive and negative current measurement with signe indicator points digital display. Automatic or manual range searching. Input impedance : range 20 ma : 9 ohms 1% 2 ma : 90 ohms 1% other : 9 kohms 1% Measurement threshold :. Setting of a numeric value of a current threshold from ma to na. Indication on the LCD display if greater or lower than the threshold. Timer:. Setting of a test time from 1 to 999 seconds by steps of 1 second. If the test time is set to 000 the unit will stay permanently in measure Sefelec 9

11 Power supply : - Mains : 230V +/- 10%, 115V +/-10% single phase 50 Hz to 60 Hz - Power consumption : 40 VA Usage temperature : - In storage : -10 C to +60 C - In operation : 0 C to +50 C, stated accuracy < 50 % RH Accuracy is warranty for a temperature between +10 and +40 C after 1/2 hour of warm-up. Weight and dimensions : - Approximately 10 kg - Height 131 mm, Width 344 mm, Depth 332 mm IEEE488 programming (model M1501P only) The built-in IEEE488 interface makes possible to a computer equipped with the same interface to remote control all the M1501P unit features. SUPPLIED ACCESSORIES : Mains lead SE1 Safety connector (type Sub-D 25points) Operating manual AVAILABLE ACCESSORIES AND OPTIONS : TE17 CO19 CO1 KRMG3U Option0l Option02 Option03 Option04 Option05 Option06 Option07 Option08 : Measurement probe : High Voltage connection lead : Guard connection lead : rack mounting kit : temperature and relative humidity measurement. : 0-10 volts analog output : PLC control interface : Rear panel accessories connection : Measurement result storage : Megohm x kilometer display : RS232 interface : 3 ma short circuit current limitation for models P and M Sefelec 10

12 SECTION I : Operation 1-1 : Front panel description : Z3 Z4 Z2 Z1 Z5 Z6 The main functions of the unit have been grouped into six zones, as follows : Zl : On/off switch Z2 : Liquid crystal display (LCD) screen Z3 : Keys for parameter evolution Z4 : digital keypad Z5 : function keys, the meaning of which is given by the LCD screen Z6 : output terminals and high voltage indicator Sefelec 11

13 1-1-1 : Keys description : The unit includes 24 keys grouped in 3 function zones. Each keystroke is accompanied by an audible signal which can be disconnected if required (refer to paragraph 1-3-1). Zone Z5 comprises 5 keys the function of which varies according to the mode in which the unit is being used. In each mode, the bottom line of the LCD screen is used. If a key has no caption it is inoperative. Zone Z3 comprises 4 keys allowing evolution of parameters by successive steps, for example: megohmmeter voltage, LCD screen contrast, etc. Zone Z4 is a digital keypad associated with specific keys : PRO/LOCAL : the LED indicator located in this key indicates that the unit is under the control of the IEEE 488 bus (refer to para. 1-6). One touch on this key will allow the unit to revert to local control. VALID : in the digital acquisition of parameters mode, this allows the composed number to be confirmed. C : in the digital acquisition of parameters mode, this allows the composed number to be erased : Description of display The display is produced from a liquid crystal screen of 64 points by 240 points used in graphics mode. The screen is divided into 5 zones arranged as follows : Zone 1 indicates the measurement readings. The main readings are displayed with large size characters (11 mm x 8 mm), while the secondary readings are in standard size characters (4 mm x 3mm). Zone 2 indicates the types of measurement selected : PICOAMMETER OR MEGOHMMETER Zone 3 is reserved for the parameters of the test selected. Zone 4 is a zone giving messages to help the operator or error messages (display in reverse video mode). Zone 5 indicates the function of the keys located below the LCD screen. Sefelec 12

14 1-1-3 : Selection of the language The unit is able to display the messages on the LCD in different languages (French, English, German...). To modify the language : - remove the two screws of the blue cover on the rear panel - push the cover toward the back - switch the switches INT2 (on the left hand side) on the top of the MPU board as describe following INT 2 : FRENCH INT 2 : GERMAN INT2 : ENGLISH NOTE: Do not modify the b7 to b2 bits (red switches) from the INT2 switch. These bits have been set in manufacture to insure a good way of working for the unit. Sefelec 13

15 1-1-4 : Description of the output connectors : The unit is set with 2 UHF connectors(4) and (5) for the output of the measuring voltage (HV) and the reading of the current ( Ix) and with 2 safety banana plugs(l) and (3). The banana plugs are connected together by an insulated jumper(2) for standard way of use, however the insulated jumper could be removed for floating measurements. NOTE: the characteristics and the correct operation are only guaranteed when the unit is used with the test probes CO19 and TE17. When the insulated jumper is fitted on the front panel, if a connection to the earth is required for the test area an additional banana plug connected to the earth is available on the rear panel. Sefelec 14

16 I - 2 SWITCH ON THE UNIT : : Preliminary instructions VERY IMPORTANT RECOMMENDATIONS TO BE READ BEFORE OPERATING THE UNIT This unit should only be handled by qualified personnel. Every precaution must be taken during its use. In particular, it is essential to connect this equipment to earth. This unit generates a voltage of 1500 V with a current of 20 ma. Comply with safety regulations applying to the use of H.V. equipment. Connect the unit to a mains circuit with an obligatory earth connection by means of the cord supplied (SE 1). Mains voltage 230 V +/- 10%, single phase 50 Hz : Switch on : Push on the push button ON / OFF of the Zl area After a few moment, the LCD screen must indicated : M1501P * S E F E L E C * M P A S E T U P Sefelec 15

17 1-2-3 : Connection to the sample under test : Connect the test probe TE17 in the provided socket Ix in the Z6 zone, lock the probe by screwing the knurled sleeve. Proceed in the same way with the probe CO19 in the HV socket. For measurements with the guard potential connected to the earth, let the black jumper on the front panel. For measurements with floating potential or with the HV connected to the earth, removed the black jumper and use the COl cord to connect the guard to the guard plane of the measurement. WARNING : when the HV is connected to the earth, the guard potential will be bring to the Test Voltage ( maximum value of 1500 volts) Connect the sample as follow : CONNECTION FOR MEGOHMMETER OR PICOAMMETER MEASUREMENT WITH THE INTERNAL SOURCE SAFETY LOOP between 1 and 14 CO1 : guard CO19 RX TE17 Sefelec 16

18 CONNECTION FOR MEGOHMMETER OR PICOAMMETER MEASUREMENT WITH AN EXTERNAL SOURCE External Power supply TE17 RX CO1 WARNING : Under no circumstances touch the live part of the test probes. Take every precaution necessary to avoid inadvertently touching the sample on test when there is voltage passing through it (the red LED indicator in the high voltage arrow in zone Z6 will be illuminated). To improve safety for the operator, the unit is supplied with a "safety loop" preventing generation of voltage when pins 1 and 14 of the 25-pin Sub-D connector located on the rear panel are not connected. It is therefore advisable to put into operation, in this connection, dry contacts in conditions of safety (closed door, firmly secured cover lowered).if the safety loop is opened,it will be not possible to go in the MEASURE mode and if the safety loop is opened when the unit is in the MEASURE mode this one will go immediately in the DISCHARGE mode with removing of the HV. Sefelec 17

19 1-2-4 : Precautions to be observed when measuring : : To make a measurement above Teraohm,use an efficient shielding around the sample, connected to guard ( grey banana plug on the front panel in floating mode or earth banana plug on the rear panel with guard connected to earth ). In this way,erratic measurements are avoided due to spurious DC leak currents or entries of AC residues : The vicinity of an operator whose hand is close to the tested sample, can distort the measurement.beware of nylon overalls or objects in insulated materials liable to generate, through static electricity, large scale electrical fields that can disturb the operating of the unit at very low current levels. Measuring 10 Teraohm under 10 volts, means measuring a current of lpa : When testing capacitive circuits ( use the CAPACITY-1 or 2 mode, see 1-3-1) never make measurements by reducing test voltage on each test, but always increasing it ; phenomena of the hysteresis and polarization, caused by the dielectric, distort the measurements. In this case the unit tends to indicate the maximum ( 2000 Tohms ) and takes a long time to come back to the real value to be measured. Never disconnect a capacitive sample without being in the DISCHARGE mode and waiting the necessary time in order to discharge the capacitance of the sample in the 2.2 kohms resistor of the discharge circuit. Sefelec 18

20 I - 3 Functions of the unit :Configuration operation After switching on or returning to the menu from Fig. n 0 (1-2-2), press the (SETUP) key to display on the screen the following: C O N T R A S T E W I T H A R R O W S : ^v BEEP : ON I E E E A D D R E S S : 0 6 M E A S U R E M E N T T I M E : N O R M A L C U R R E N T L I M I T A T I O N : 2 0 M A V E R S I O N : I D A T E : BEEP B E E P T I M E O P T I O N END FIG The contrast adjustment of the LCD screen can be altered according to the position of the operator in relation to the screen. For this purpose, use the UP and DOWN arrows in zone Z3 (1-1) to increase or reduce the contrast. The new contrast level will be stored in the memory, even after the unit has been switched off. - Operation of each key on the front panel is accompanied by an audible beep, indicating to the operator that the keystroke has been accepted. This audible signal can be suppressed or otherwise using the (BEEP) key. When the unit is switched on, the beep signal will be restored. - The IEEE 488 address is indicated on the LCD screen. To alter its value, refer to paragraph There are three measurement speeds and two capacitance modes : * NORMAL : 5 averaged measurements to each display with 3 displays per second * SLOW : 15 averaged measurements to each display with 1 display per second. * FAST : 1 measurement to each display with 10 displays per second. * CAPACITY-1 or 2 : these measurement modes have the same speed characteristics as the normal mode but they activate hardware and software functions in order to allow stable measurements on very capacitive samples. When these modes are on,the little drawing of a capacitance is displayed on the right corner of measurement window. The CAPACITY-1 mode is specially design for measurements on capacitive sample with disturbances ( ie : long cables, machines in factories,...) The CAPACITY-2 mode is for measurements on capacitive components in laboratories. In these two modes the measurement range goes from to ma to na. Never disconnect a capacitive sample without being in the DISCHARGE mode and waiting the necessary time in order to discharge the capacitance of the sample in the 2.2 kohms resistor of the discharge circuit. The [TIME] key allows, by repeated action, the selection of a speed of measurement. At each switching on of the unit or Reset, the speed mode is memorized. Sefelec 19

21 - the HV generator has a current limitation set to 20 ma (models P and M). If for safety reasons it is necessary to get a 3 ma current limitation, it is possible to modify the setting by removing the J3 jumper, located on the HV board. In that case, the user will be informed by the display : CURRENT LIMITATION : 3 MA - the revision number and the revision date permit software update of the unit. - the (OPTION) key allows to display the panel of the available options on the unit by indicating those who are installed. Refer to the option section for more details 1 > T E M P A N D R E L. H U M I D I T Y : NO 2 > O U T P U T V L I N : NO 3 > P L C C O N T R O L : NO 4 > R E A R P A N E L C O N N E C T O R S : NO 5 > M E A S U R E M E N T S T O R A G E : NO 6 > M E G O H M x K M : NO END FIG the (END) key returns to the initialization menu (Fig ). Sefelec 20

22 1-3-2 : Measurement operations The unit allows two types of test to be carried out : measurements of insulation resistance (MO ) key and currents ( PA ) key. From the initialization menu press (MO) and the display will change to: M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : K o T I M E : S R A N G E : A U T O E N D V O L T. L I M I T N E X T M E AS. FIG. 01 From the initialization menu press (PA) and the display will change to: P I C O A M M E T E R M9 V O L T A G E : V = L I M I T : M A T I M E : S R A N G E : A U T O E N D V O L T. L I M I T N E X T M E AS. FIG.05 To come back to the initialization menu, press on the (END) key. Sefelec 21

23 I - 4 : Measurement of an insulation resistance From the initialization menu (Fig. 00), press (MO) to obtain the menu shown in Figure : Measurement voltage - press the [VOLT] key - the display shows : M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : K o T I M E : S R A N G E : A U T O E N D V O L T. L I M I T N E X T M E AS. FIG the voltage value zone changes to reverse video mode. - enter the value of voltage between 1 and 1500 volts ( 10 to 1500 VDC for M1501U model) with the numerical keyboard. Cancel the input value with the C key if required. - when the selected value is displayed, proceed by pressing the (VALID) key. If the input value is out of the limits : display of " OUT OF RANGE " and enter a new value. If the value is OK : - display : refer to Figure 1. Sefelec 22

24 1-4-2 Threshold : The threshold function allows to set a limit value for the insulation resistance. Each measured value greater than the threshold value will be defined as good ( display of R > LIMIT ), the value lower than the threshold as bad ( display of R< LIMIT in reverse video ) This function allows to sort quickly the tested components without the need for the user to read with care the displayed value. - press on the (LIMIT) key - the display shows : UNIT WITH ^v E N D V O L T. L I M I T N E X T M E AS. FIG. 13 choose the unities format using the UP and DOWN arrows : Ko Go To Mo Go To Mo Go To Mo To M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : Mo T I M E : S R A N G E : A U T O - input the threshold value with the numerical keyboard. Correct the input value with the C key if required. If the selected unity is not correct, use again the UP and DOWN arrows to select the required format of unity. - press on the (VALID) key - display : figure n 1 - to inhibit the threshold function, set a value of Ko Sefelec 23

25 1-4-3 Timer: If the time value is set to 0000, the internal timer is not used. If a time is selected ( between 1 and 999 seconds ), the measurement will be perform during this time, then the unit will go automatically in the discharge mode with the memorization on the display of the last measured value and the result of the comparison with the preset threshold if this one was active. - press on the (NEXT) key - the display shows : M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : M o T I M E : S R A N G E : A U T O T I M E R A N G E N E X T M E MO FIG.17 press on the (TIME) key the display shows : M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : M o T I M E : S R A N G E : A U T O T I M E R A N G E N E X T M E MO FIG.14 - input the time value with the numerical keyboard. Correct the input value with the C key if required. - press on the (VALID) key - display : figure n 17 - press on the (NEXT) key to come back to the menu of the figure n l Sefelec 24

26 1-4-4 Range : The unit provides an automatic measurement range searching mode. This operating mode is the more useful for the operator. Therefore, it is possible in order to increase the speed measurement to lock the unit in one range ( time for changing a range : 150 ms ). - refer to the figure n 17 configuration - press on the (RANGE) key - the display shows : M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : M o T I M E : S WITH ARROWS : ^ v R A N G E :. T I M E R A N G E N E X T M E MO FIG select the current range by making the calculation U (test voltage) R = digit from the I range with I range = 20 MA,2 MA, 200 ua, 20 ua, 2 ua, 200 na, 20 na, 2 na,200 pa,20 pa example : 45 volts range 2mA -> Rdisplay = 45 / 1 ma = 45 kohm 45 volts range 200µA -> Rdisplay = 45 / 100µA = 450 kohm The minimum resistance value in a range is given par : U / 2000digits ( in example 45V/2mA= 22.5 kohm) For lower values the display will give : with an R < RANGE message. The maximum resistance value in a range is given by : U / 200 digits ( in example 45V/0.2mA= 225 kohm) For higher values the display will give an R > RANGE message but the unit will perform correct measurement until 100 times the maximum range value. - actuate the various possible ranges using the UP and DOWN arrows AUTO, 20 MA,2 MA, 200 ua, 20 ua, 2 ua, 200 na, 20 na, 2 na,200 pa,20 pa - press the (VALID) key - display : refer to Figure 17 - press the (NEXT) key to return to the menu shown in Figure 1. Sefelec 25

27 1-4-5 Parameters memorization : The preset measurement parameters could be stored in a memory powered by a lithium battery which keeps the data even after the unit has been switched off. There is 10 memories to memorize the various parameters in megohmmeter mode, labeled MO to M9. To memorize a set of parameters : - press on the (NEXT) key - press on the (MEMO) key - the display shows : M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : M o T I M E : S KEYBOARD OR : ^ v R A N G E : A U T O T I M E R A N G E N E X T M E MO FIG input with the numerical keyboard the number of the memory or display the numbers with the UP and DOWN arrows. When the number of the memory is correct, enter by pressing the (VALID) key. - enter the various test parameters as describe in sections to These parameters will be automatically associated to the preset number of memory. Sefelec 26

28 1-4-6 Measurement : - select the parameters for voltage (1-4-1), threshold (1-4-2), time (1-4-3) and range (1-4-5) or recall a number of memory (1-4-5). Note: these parameters will be stored, even after the unit has been switched off. - connect the measuring apparatus as shown in paragraph and read precautions of the paragraph press the (MEASUR) key - the HV LED indicator is illuminated and the display shows : 2000 T R > L I M I T M E G O H M M E T E R M9 V O L T A G E : V = L I M I T : M o T I M E : S R A N G E : A U T O R E S E T FIG in case of a time = 0000, the unit will remain in measurement mode until the (RESET) key is pressed - if a time has been selected, the time value of the test counts down one unit every second. When the time displayed reaches zero, the display will show : 2000 T END OF TEST. M E G O H M M E T E R M9 V O L T A G E : V = L I M I T : M o T I M E : S R A N G E : A U T O R E S E T FIG. 18 The output voltage is cut off (the HV LED indicator goes out) and the last value measured is stored on the LCD screen. The ["END OF TEST"] message indicates to the operator that the measurement time has expired. Sefelec 27

29 - press the (RESET) key - display : refer to Figure 1 - press the (END) key to return to the initialization menu - Note : the following error messages may appear :. ["SAFETY LOOP"] : the safety loop is not closed, there is no connection between pins 1 and 14 of the Sub-D socket located on the rear panel of the unit.. ["R > RANGE"] : the insulation resistance of the sample on test exceeds the measurement capacity of the unit (> 2000 Teraohm) or of the measurement range in manual range searching mode.. ["R < RANGE"] : the insulation resistance of the sample on test is less than the measurement capacity of the unit (< 100 ohm) or of the measurement range in manual range searching mode.. ["CHARGING... "] : the test voltage has not reached its final value. The voltage generator is charging the capacitance of the sample under test. This message must be displayed briefly when the unit goes in the measurement mode. If this message stays permanently on the LCD screen the required measuring voltage could not be supplied to the measured resistance. Check with the high voltage characteristics. WARNING : the unit is fitted with a thermal protective system. In case of the use of the High voltage generator on short circuits during a long time, the thermal protective system will act. The message "CHARGING... " will be displayed permanently on the LCD screen. Switch off the unit and wait for 10 minutes before switching on.. ["VOLTAGE ERROR"] : when a test time is preset, if during the test time the "CHARGING." message is continuously displayed, at the test time end the test will be failed and the VOLTAGE ERROR will indicate the reason of the failure. Refer to the CHARGING error section for additional information. Sefelec 28

30 I - 5 : LOW CURRENT MEASUREMENT : Refer to initialization menu ( Fig n 0), press on the (PA) key. The display shows : P I C O A M M E T E R M9 V O L T A G E : V = L I M I T : M A T I M E : S R A N G E : A U T O E N D V O L T. L I M I T N E X T M E AS Test voltage: - press on the (VOLT) key - display identical to the figure n 12 of the megohmmeter mode - the voltage value zone changes to reverse video mode. - enter the value of voltage between 0 and 1500 volts with the numerical keyboard. Correct the input value with the C key if needed. - when the selected value is displayed, proceed by pressing the (VALID) key. If the input value is out of the limits : display of " OUT OF RANGE " and enter a new value. If the value is OK : - display : refer to Figure 5. - in case of a voltage set to 0000, the internal generator is inhibited and the display shows : P I C O A M M E T E R M9 V O L T A G E : E X T E R N L I M I T : M A T I M E : S R A N G E : A U T O E N D V O L T. L I M I T N E X T M E AS. FIG. 06 Sefelec 29

31 1-5-2 Threshold : The threshold function allows to set a limit value for the current. Each measured value greater than the threshold value will be defined as bad ( display of I > LIMIT ), the value lower than the threshold as good ( display of I< LIMIT in reverse video ) This function allows to sort quickly the tested components without the need for the user to read with care the displayed value. - press on the (LIMIT) key - the display is identical to the figure n 13 of the megohm mode - select the format of the unities with the UP and DOWN arrows : MA ua PA MA NA -.-- PA ua NA ua NA - input the threshold value with the numerical keyboard. Correct the input value with the C key if required. If the selected unity is not correct, use again the UP and DOWN arrows to select the required format of unity. - press on the (VALID) key - display : figure n 5 - to inhibit the threshold function,set a value of MA Sefelec 30

32 1-5-3 Timer : If the time value is set to 0000, the internal timer is not used. If a time is selected ( between 1 and 999 seconds ), the measurement will be perform during this time, then the unit will go automatically in the discharge mode with the memorization on the display of the last measured value and the result of the comparison with the preset threshold if this one was active. - press on the (NEXT) key - the display is identical to the figure n 17 of the megohm mode - press on the (TIME) key - display identical the figure n 14 of the megohm mode - input the time value with the numerical keyboard. Correct the input value with the C key if required. - press on the (VALID) key - display : figure n 10 - press on the (NEXT) key to come back to the menu of the figure n Range : The unit provides an automatic measurement range searching mode. This operating mode is the more useful for the operator. Therefore, it is possible in order to increase the speed measurement to lock the unit in one range ( time for changing a range : 150 ms ). - refer to the figure n 10 configuration - press on the (RANGE) key - the display is identical to the figure n 15 of the megohm mode - select the current range by making the calculation R = U (voltage in volt) / R (resistance in ohm) - actuate the various possible ranges using the UP and DOWN arrows AUTO, 20 MA,2 MA, 200 ua, 20 ua, 2 ua, 200 na, 20 na, 2 na,200 pa,20 pa - press the (VALID) key - display : refer to Figure 10 - press the (NEXT) key to return to the menu shown in Figure Parameters memorization : The preset measurement parameters could be stored in a memory powered by a lithium battery which keeps the data even after the unit has been switched off. There is 10 memories to memorize the various parameters in picoammeter mode, labeled MO to M9. To memorize a set of parameters : - press on the (NEXT) key - press on the (MEMO) key - the display is identical to the figure n 16 of the megohm mode - input with the numerical keyboard the number of the memory or display the numbers with the UP and DOWN arrows. When the number of the memory is correct, enter by pressing the (VALID) key. - enter the various test parameters as describe in sections to These parameters will be automatically associated to the preset number of memory. Sefelec 31

33 1-5-6 Measurement : - select the parameters for voltage (1-5-1), threshold (1-5-2), time (1-5-3) and range (1-5-5) or recall a number of memory (1-5-5). Note: these parameters will be stored, even after the unit has been switched off. - connect the measuring apparatus as shown in paragraph and read precautions, of the paragraph press the (MEASUR) key - the HV LED indicator is illuminated ( if the test voltage is not set to zero ) and the display shows the measurements. - in case of a time = 0000, the unit will remain in measurement mode until the (RESET) key is pressed - if a time has been selected, the time value of the test counts down one unit every second. When the time displayed reaches zero, the display will show : na END OF TEST. P I C O A M M E T E R M9 V O L T A G E : E X T E R N L I M I T : M A T I M E : S R A N G E : A U T O R E S E T The output voltage is cut off (the HV LED indicator goes out) and the last value measured is stored on the LCD screen. The ["END OF TEST"] message indicates to the operator that the measurement time has expired. - press the (RESET) key - display : refer to Figure 5 - press the (END) key to return to the initialization menu Sefelec 32

34 Note : the following error messages may appear :. ["SAFETY OPENED"] : the safety loop is not closed, there is no connection between pins 1 and 14 of the Sub-D socket located on the rear panel of the unit.. ["OVERRANGE"] : the current flowing into the sample under test is lower than the measurement capacity of the unit ( < pa) or of the measurement range in manual range searching mode.. ["UNDERRANGE"] : the current flowing into the sample on test is exceeded the measurement capacity of the unit (> MA) or of the measurement range in manual range searching mode.. ["CHARGING... "] : the test voltage has not reached its final value. The voltage generator is charging the capacitance of the sample under test. This message must be displayed briefly when the unit goes in the measurement mode. If this message stays permanently on the LCD screen the required measuring voltage could not be supplied to the measured resistance. Check with the high voltage characteristics. WARNING : the unit is fitted with a thermal protective system. In case of the use of the High voltage generator on short circuits during a long time, the thermal protective system will act. The message "CHARGING... " will be displayed permanently on the LCD screen. Switch off the unit and wait for 10 minutes before switching on.. ["VOLTAGE ERROR"] : when a test time is preset, if during the test time the "CHARGING." message is continuously displayed, at the test time end the test will be failed and the VOLTAGE ERROR will indicate the reason of the failure. Refer to the CHARGING error section for additional information. Sefelec 33

35 1-6 : Use in remote programming mode (IEEE 488 bus) : : Introduction : All the local functions provided by the M1500P Teraohmmeter are remotely programmable. Linking to a computer is made by the use of circuits corresponding to the standard IEEE 488 bus : IEEE 488 specifications Provides the following interface functions : source dialogue (SH) talker (T) listener (L) servicing request (SR) local/remote control (RL) device clear (DC). the interface function device trigger (DT) is accepted but not used.. the interface functions parallel recognition (PP) and controller (C) are not processed by this interface.. the electrical specifications (logic states, control and acceptance circuits, times of state transition) comply with IEEE 488 and CEI (section 3) standards.. the mechanical specifications comply only with the IEEE 488 standard (a different connector is covered by the standard CEI section 4).. Frequency of data transmission : - 250,000 octets/second max. over a maximum distance of 20 meters, with a normalized equivalent load every 2 meters of cable.. Addressing variable from 1 to 32 via a switch (1 single address for the interface and common to the talk or listen function). Sefelec 34

36 1-6-3 : Addressing According standard, from 1 to a maximum of 14 units or systems can be connected to the same data exchange bus. These assemblies are under the control of a 15th unit or system, called the bus controller (the latter function is usually provided by a computer). It is necessary for each unit to be identifiable by its own address. This coding can be achieved by using bits 1 to 5 of the address word. Changing the states of bits al to a5 is done manually and is accessible from the inside of the unit, the selected address being indicated to the operator on the configuration menu (1-3-1). To access to the switch, remove the 2 fixing screws from the cover located on the rear panel. Slide the cover to the rear to reveal the switch, which is positioned at the top of the MPU board. INT2 INT3 MPU BOARD To position a bit at 0, press down on the corresponding switch INT 3 (using a fine point). To position a bit at 1, carry out the reverse procedure. NOTE: Do not modify the configuration of the INT2 switch. This switch has been set in manufacture to insure a good way of working for the unit. The 5 address lines allow the provision of 32 separate combinations. Sefelec 35

37 So that a unit may receive or transmit messages, it is necessary to address it, by putting the following data onto the bus lines : REN = 1 remote control mode ATN = 1 DIO 1 to 5 =address of the unit and into the DIO 6 and 7 lines, determining the condition into which the unit should be placed. DIO7 = 0 et DIO6 = 0 : IGNORED State DIO7 = 0 et DIO6 = 1 : LISTENER DIO7 = 1 et DIO6 = 0 : TALKER DIO7 = 1 et DIO6 = 1 : IGNORED State The 7-bit address word thus determined allows the formation of the codes in Table Note : the address has the effect of logging out a unit placed in listen mode, the address has the effect of logging out a unit placed in talk mode. Exit the SETUP mode (para ) then return to it to display the new IEEE 488 address selected. Sefelec 36

38 1-6-4 TABLE OF PROGRAMMING CODES : CODE DEFINITION REMARK MGO PIC VOL+x.xxxE+xx Megohmmeter function Picoammeter function Test voltage in volt SOH+x.xxxE+xx Limit in ohm Megohmmeter mode SAM+x.xxxE-xx Limit in ampere Picoammeter mode TMAxxx GMxx MEMxx MES DCH Measurement time Measurement range Parameter memory Measurement mode Discharge mode EXT External measurement source Picoammeter mode only VIN Normal measurement speed 3 disp./sec VIR Fast measurement speed 10 disp./sec VIL Slow measurement speed 1 disp./sec VIF VIC NOD MAS DMA DIS CAPACITY-1 CAPACITY-2 No measurement display Display completely frozen Display operating Display measurement TES Voltage reading VOL+x.xxxE+xx ISO Resistance reading OHM+x.xxxE+xx COU Current reading AMP+/-x.xxxE-xx STA Unit status STAxx SRI Immediate service request Sefelec 37

39 1-6-5 : DESCRIPTION OF THE CODES : MGO : Megohmmeter function : Configure the unit for measuring insulation resistances. This instruction must be sent when the unit is in discharge mode and before the function parameters codes ( voltage, threshold,...) PIC : Picoammeter function : Configure the unit for measuring currents. This instruction must be sent when the unit is in discharge mode and before the function parameters codes (voltage, threshold,...) VOL+x.xxxE+xx : Measurement voltage : in megohmmeter, this indicates the voltage at which the insulation resistance measurement is made. This value can be selected from among the following options: from E+03 to E+03 in Picoammeter, this indicates the voltage at which the current measurement is made. In the case of the use of an external source, refer to EXT code information. WARNING : this code is active only in DISCHARGE mode. SOH : Megohmmeter threshold of comparison : In megohmmeter, this indicates the resistance value in ohms for the comparison threshold The format is as follows : SOH+x.xxxE+xx with values from : SOH+0.001E+05 to SOH+2.020E+15 For example, for 10 Megohms : SOH+1.000E+07 To inhibit the function send : SOH+0.000E+05 SAM : Picoammeter threshold of comparison : In picoammeter, this indicates the current value in amperes for the comparison threshold The format is as follows : SAM+x.xxxE-xx with values from : SAM+20.00E-03 to SAM+1.980E-12 For example for 10 ua = SAM+1.000E-05 To inhibit the function send : SAM+0.000E-02 TMA : Hold time : In megohmmeter defines the time in seconds for the insulation resistance measurement. In picoammeter, defines the time in seconds for the current measurement. The format is as follows : TMAxxx with values between : 000 and 999 In example, for 100 seconds : TMA 100 In the case of a time set to 000, the unit will stay permanently in the MEASURE mode. The duration of the measurement will be determined by the sending of the codes : MES and DCH. Sefelec 38

40 GMxx : Locking in a measurement range : During megohmmeter and the picoammeter operation, this allows the range of measurement of current to be set and to acquire the changeover times of the various ranges (that is 150 ms per range). The format is as follows : GMxx with xx : 01 -> 10 The code GM00 configures the unit in the automatic searching range mode. Note : the automatic range search (GM00) mode remains the easiest and most practical to use. Table for the corresponding of the current ranges : RANGES CODE 20 pa GM pa GM09 2nA GM08 20 na GM na GM06 2uA GM05 20 ua GM ua GM03 2tnA 20mA GM02 GM01 MEMxx : Memorization of the measurement parameters : In megohmmeter or in picoammeter mode, allows to specify the number of the memory to memorize the measurement parameters. There is 10 memories for the megohmmeter mode and 10 memories for the picoammeter mode. The format is as follows : MEMxx with xx between 00 and 09 Sleet the megohmmeter or the picoammeter mode, select the number of memory by the code MEMxx then send the measurement parameters those will be automatically associated to the memory number. Sefelec 39

41 MES : Measurement mode : In Megohmmeter mode, the test voltage is applied to HV output terminal. The red indicator lamp in the arrow is illuminated (zone 6). The unit makes measurements of resistance and voltage, then it can, by sending the relevant instructions ( ISO,TES), transmit the measured values to the computer. In Picoammeter mode, the test voltage is applied to HV output terminal, if the unit is using its internal generator ( voltage not equal to 0000) the red indicator lamp in the arrow is illuminated (zone 6). The unit makes measurements of current and voltage, then it can, by sending the relevant instructions ( COU,TES), transmit the measured values to the computer WARNING : the following codes are not active in the MEASURE mode : MGO,PIC,VOL+x.xxxE+xx,MEMxx,EXT,SAM+x.xxxE-xx, SOH+x.xxxE+xx,TMAxxx. Go into DISCHARGE mode before sending them. It is not allowed to put another code behind MES in the same block of data. DCH : Discharge mode : During Megohmmeter or Picoammeter operation, this suppresses the presence of voltage on the output terminal. The indicator lamp in the red arrow goes out. Thus, the HV output terminal is linked to the earth terminal by a resistor, allowing discharge of the test sample. WARNING: It is not allowed to put another code behind DCH in the same block of data. The following codes are not active in the DISCHARGE mode : TES,ISO,COU Wait for 200 ms after the code DCH before sending a new block. EXT : External source : In Picoammeter mode, inhibits the internal generator and allows the using of an external source ( maximum voltage = 1500 volts), which will be connected as describe at section VIN : Normal speed for measurement : In Megohmmeter or Picoammeter, allows to get an averaged display and a returned value to the computer on 5 measured values. The selected measurement speed is memorized after each power on or reset. Average time for an acquisition on the IEEE 488 bus : 420 ms.( unit stabilized in a current range of measure ) VIL : Slow speed for measurement : In Megohmmeter or Picoammeter, allows to get an averaged display and a returned value to the computer on 16 measured values. The selected measurement speed is memorized after each power on or reset. Average time for an acquisition on the IEEE 488 bus : 950 ms ( unit stabilized in a current range of measure ) Sefelec 40

42 VIR : Fast speed for measurement : In Megohmmeter or Picoammeter, allows to get an averaged display and a returned value to the computer on each measured values. The selected measurement speed is memorized after each power on or reset. Average time for an acquisition on the IEEE 488 bus : 150 ms ( unit stabilized in a current range of measure ) VIF or VIC : Measurement on capacitive circuits : In Megohmmeter and in Picoammeter mode this measurement mode has the same speed characteristics as the normal mode but it activates hardware and software functions in order to allow stable measurements on very capacitive samples. When this mode is on, the little drawing of a capacitance is displayed on the right corner of measurement window. VIF : CAPACITY-1 mode when there is disturbance VIC : CAPACITY-2 mode capacities without disturbance NOD : No display for the measurement results : When the display of the measurement results on the LCD screen are not necessary, it is possible with the NOD code to suppress this display. This allows to win a time of 90 ms per measurement acquisition on the IEEE488 bus. Measurement parameters stay displayed. This working mode is not memorized after power off or reset. TES : Reading of the measurement voltage : In Megohmmeter and Picoammeter mode, this produces the transmission onto the IEEE488 bus of data corresponding to the measured value of the test voltage. The format of the received data is in the form : VOL+x.xxxE+xx In example, for 100 volts : VOL+1.000E+02 After sending the TES instruction, the bus controller system must enable the M1500P to transmit the data (put in talker mode ) in a time less than 2 seconds. WARNING : this code is active only in the MEASURE mode. ISO : Reading of the insulation resistance : In Megohmmeter mode, this produces the transmission onto the IEEE488 bus of data corresponding to the measured value of the insulation resistance. The format of the received value is in the form : OHM+x.xxxE+xx In example for 10 Megohms : OHM+1.000E+07 After sending the ISO instruction, the bus controller system must enable the M1500P to transmit the data (put in talker mode ) in a time less than 2 seconds. WARNING : this code is active only in the MEASURE mode and in MEGOHMMETER. Sefelec 41

43 COU : Reading of the current : In Picoammeter mode, this produces the transmission onto the IEEE488 bus of data corresponding to the measured value of the current. The format of the received data is in the form : AMP+x.xxxE-xx or AMP-x.xxxE-xx In example, for 10 ua : AMP+1.000E-05 After sending the COU instruction, the bus controller system must enable the M1500P to transmit the data (put in talker mode ) in a time less than 2 seconds. WARNING : this code is active only in the MEASURE mode and in PICOAMMETER. STA : Condition status of the unit Produces transmission onto the IEEE 488 bus of data corresponding to the state of the unit, using the following binary codes : b0 bl b2 b3 b4 b5 b6 b7 0 : safety loop closed 1 : safety loop opened 0 : R > threshold in megohmmeter ( set at the end of the test time when using timer) 1 : R < threshold in megohmmeter ( set at the end of the test time when using timer) 0 :I > threshold in picoammeter( set at the end of the test time when using timer) 1 :I < threshold in picoammeter( set at the end of the test time when using timer) 0 : test completed 1 : test in progress 0 : end of charging phase for the test voltage 1 : charging phase in progress not used not used 0 : Current limitation is set to 3 ma 1 : Current limitation is set to 20 ma The format of the message sent by the M1501P is : STAxx for example : if the safety loop is open : STA 01 test in progress STA 08 After sending the STA instruction, the bus controller system must put the M1501P into talk mode in a time less than 2 seconds. Note : this code allows use of the M1501P without management of the SRQ line of the IEEE 488 bus (refer to paragraph 1-6-6). SRI : Immediate service request : When the computer have to read back a data from the M1501P ( codes : STA, ISO, TES, COU ) it needs to put the M1501P into talker mode before a time of 2 seconds.after these 2 seconds if the M1501P is not able to talk, it will generate a SRQ = 192 decimal ( line 3 of table II page 45 ) To generate this SRQ immediately when the data is ready, you have to send the code SRI after the initialization of the M1501P. Sefelec 42

44 1-6-6 :USE OF THE SERVICING REQUEST (SRQ) INTERFACE FUNCTION When the SRQ line is at state 1, it indicates to the controller that one or more instruments on the circuit require its attention. This line may or may not be used by a unit : this depends on its design. The instruments are connected to the SRQ line in a configuration whose logic corresponds to an OR gate. This requires the controller to conduct a full process of elimination to determine which instrument requires servicing. The M1501P unit uses the SRQ line to signal to the controller any anomalies of use or a change of state. During a serial recognition sequence, when the unit is in SPAS state, the data can be transmitted in the form of an STB message. The latter provides the controller with a summary of the main data concerning the state of the unit. At the time of the servicing request the interface generates a state octet, as defined in Table II. The SRQ (DI 07) message is transmitted at the same time as the STB message. The conventions used for coding the state octet follow the recommendations of the standard A single STB message octet is transmitted at a servicing request, in line with the definition of standard. Sefelec 43

45 TABLE II STB message description STB B7 B6 B5 B4 B3 B2 B1 B0 State description byte Line DIO8 DIO7 DIO6 DIO5 DIO4 DIO3 DIO2 DIO No service requested Error message coding Service for error message Unit state coding Output of measurement result Unit state coding Output of unit state DIO1 to DIO4 : Coding onto 4 bits of the type of error message sent (cf. Tables IIa and IIb) DIO7 is the line defining the servicing request (0 = no request, 1 = servicing request). TABLE IIa error message coding description STB B7 B6 B5 B4 B3 B2 B1 B0 State description byte Line DIO8 DIO7 DIO6 DIO5 DIO4 DIO3 DIO2 DIO Format error ( 64) Paremeter out of limits ( 65) Code not compatible with setup (66) Discharge mode from front panel (67) Request for local in LLO (68) Calibration error ( 69) Not used (70) Not used (71) Sefelec 44

46 Table IIb unit state coding description STB B7 B6 B5 B4 B3 B2 B1 B0 State description byte Line DIO8 DIO7 DIO6 DIO5 DIO4 DIO3 DIO2 DIO Safety loop open (208) R < limit (209) R > limit (210) Not used End of test (212) Not used Not used Not used Not used R < limit + End of test (217) R > limit + End of test (218) Sefelec 45

47 1-6-7 DEFINITION AND OPERATION OF THE ERROR CODES : IEEE ERROR : 00 = format error (STB = 64 decimal) The message received by the M1500P does not conform to the syntax rules described in paragraph The code transmitted has not been recognized. Check the contents of the message. IEEE ERROR : 01 = parameter outside limits (STB = 65 decimal) The digital value transmitted to the M1500P is outside the lower or upper limits permitted for the parameter concerned. Refer to Section I and the paragraph dealing with the parameter in question and check the permitted limits. IEEE ERROR : 02 = Code incompatible with selected configuration (STB = 66 decimal) The instruction transmitted cannot be executed in the current operating mode of the unit. This could be a code only used in picoammeter mode, transmitted when the unit is in megohmmeter mode (and vice versa) or a prohibited code while the unit is in measurement mode (MGO,PIC,EXT,VOL,...). IEEE ERROR : 03 = Put into discharge by the (RESET) pushbutton (STB = 67 decimal) When the unit is in remote mode, the keypad on the front panel is inoperative. However, for safety reasons, in measurement mode (application of high voltage to the measurement terminal) the (DISCHA) key remains operative. The controller is advised of the return to discharge mode by generation of an SRQ IEEE ERROR : 04 = request for change from local mode to LLO (STB = 68 decimal) The LLO (Local Lock Out) function of the IEEE 488 bus prohibits return of the unit to local mode. If the LOCAL key is pressed while in this configuration, the controller is advised via activation of the SRQ line. IEEE ERROR : 05 = calibration error (STB = 69 decimal) During the calibration procedure, parameters cannot be adjusted. SAFETY LOOP OPEN (STB = 208 decimal) : The safety loop is not closed, there is no connection between pins 1 and 14 of the Sub-D connector located on the rear panel of the unit. It is not possible to change to measurement mode. R < LIMIT or I < LIMIT (STB = 209 decimal) : During megohmmeter operation, if the measured resistance is lower than the threshold value. During picoammeter operation if the measured current is lower than the threshold value. R > LIMIT or I > LIMIT (STB = 210 decimal) : During megohmmeter operation, if the measured resistance is higher than the threshold value. During picoammeter operation if the measured current is higher than the threshold value. END OF TEST (STB = 212 decimal) When the units timer is in use, this indicates the end of the test period. It is possible to get a combination of status byte STB when there is multiple SRQ. For the Measure ready SRQ, the status byte could be either 192 if there is no other SRQ waiting to be read or a value between 192 and 207. Sefelec 46

48 1-6-8 SYNTAX RULES FOR PROGRAMMING : It is essential to comply with the syntax of the programming codes. Do not add spaces to, or omit characters from, the codes listed in Table I (paragraph 1-6-4). The separator between two codes within the same data block is the slash / or the comma, The separator of a data block is the ASCII code : LF ($0A in Hexa) in association with the IEEE 488 bus signal :EOI. For a separator of a data block equal to CR + LF, please modify the switch INT2 on the MPU board as following : LF = 6 INT 2 Down CR + LF = 6 INT 2 Up The maximum number of characters within the same data block is 100. Do not follow with a different code, the codes producing a transmission of one data unit on the IEEE 488 bus (TES, COU, ISO, etc.) and thus the codes : DCH, MES. Wait for 200 ms after the code DCH before sending a new block. Sefelec 47

49 1-6.9 PROGRAM EXAMPLE : This program is written in BASIC for a PC computer fitted with a interface board IEEE488 from IOTECH. TSTM1500: program de test de M1500P Date de création : rédacteur:dd Date de modification: rédacteur:dd 8 SCREEN 0, 0, 0: COLOR 10, 1 10 CLS definition de variables: 12 a$ = "06": val$ = SPACE$(100): sort% = 0 14 debug = 0: mettre 1 dans le cas ou il ny a pas dappareil IEEE connecté initialization de la carte IOTECH 20 OPEN "\dev\ieeeout" FOR OUTPUT AS #5 30 OPEN "\dev\ieeein" FOR INPUT AS #6 40 IOCTL #5, "break" 50 PRINT #5, "reset" 60 PRINT #5, "error off" 62 PRINT #5, "time out 5" 70 ON PEN GOSUB PEN ON 90 PRINT #5, "arm srq" initialization du M1500P 100 PRINT #5, "remote" + a$ 110 PRINT #5, "clear" + a$ definition des touches de fonction 112 GOSUB GOSUB 6000: titre 114 GOTO GOSUB 200: off des keys 122 KEY 1, "CODE" 130 KEY 2, "MESURE" 140 KEY 3, "" 142 KEY 8, " FIN " 160 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(3) GOSUB ON KEY(8) GOSUB kmax = 3: GOSUB 250: KEY(8) ON: on des keys 198 RETURN 199 END sous program de off key 200 FOR i = 1 TO KEY i, "" 212 KEY(i) OFF 220 NEXT i 222 KEY OFF 230 RETURN sous program de on key:kmax contient le numero de la derniere touche fonction validee contigue 250 FOR i = 1 TO kmax 260 KEY(i) ON 270 NEXT i 272 KEY ON 280 RETURN envoi dun message sur le bus IEEE488 mes$ contient le code a envoyer 300 IF debug = 1 THEN PRINT #5, "output" + a$ + ";" + mes$ 310 RETURN reception dun message sur le bus IEEE488 val$ contient le code recu 320 IF debug = 1 THEN PRINT #5, "enter" + a$ 330 LINE INPUT #6, val$ 340 RETURN 342 val$ = "*****": RETURN envoi dun code tension avec formattage ten% contient la valeur de tension 400 IF debug = 1 THEN IF ten% > 99 THEN PRINT #5, USING "output" + a$ + ";VOL+#.###^^^^"; ten%: GOTO PRINT #5, USING "output" + a$ + ";VOL+0.###^^^^"; ten% 420 RETURN traitement des srq 500 IF IOCTL$(6) <> "0" THEN RETURN 510 PRINT #5, "spoll" + a$ 520 INPUT #6, stp% Sefelec 48

50 530 IF (stp% AND 64) = 0 THEN RETURN 534 GOSUB 8400: decodage du status byte 540 PRINT "srq!!!!:"; stp% 550 RETURN boucle de tempo: t3=valeur en seconds tempo 600 t = TIMER 610 WHILE t <> 0: t2 = TIMER: IF t2 - t >= t3 THEN t = WEND 630 RETURN traitement de lenvoi de codes un par un 1000 CLS 1010 GOSUB 200: off des keys 1020 PRINT "Entrer le code envoyer en MAJUSCULES (return = sortie):"; 1030 LINE INPUT cod$ 1032 IF LEN(cod$) = 0 THEN mes$ = cod$: GOSUB GOTO CLS : GOSUB 120: RETURN cycles de mesures 7000 CLS 7010 GOSUB GOTO GOSUB 200: off des keys 7110 KEY 1, "MEGOHM" 7120 KEY 2, "PICO" 7122 KEY 3, "SRQ" 7124 KEY 4, "MESDCH" 7126 KEY 5, "ACQUI" 7128 KEY 6, "MEMO" 7129 KEY 7, "VITESS" 7130 KEY 8, "RETOUR" 7131 KEY 9, "øc/hr " 7132 KEY 10, "STOP" 7140 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(3) GOSUB ON KEY(4) GOSUB ON KEY(5) GOSUB ON KEY(6) GOSUB ON KEY(7) GOSUB ON KEY(8) GOSUB ON KEY(9) GOSUB ON KEY(10) GOSUB kmax = 9: GOSUB 250: KEY(10) ON: on des keys 7180 RETURN touche de retour 7200 CLS 7210 GOSUB 120: RETURN touche MEGOHM 7220 CLS : GOSUB mes$ = "MGO": GOSUB GOTO GOSUB 200: off des keys 7260 KEY 1, "CYCLE" 7270 KEY 2, "ARRET" 7280 KEY 8, "RETOUR" 7290 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(8) GOSUB kmax = 2: GOSUB 250: KEY(8) ON: on des keys 7330 RETURN cycle de mesure en megohm 7340 CLS : LOCATE 5: PRINT " D part du cycle de test en megohmmetre" 7345 PRINT : PRINT "Si vous voulez modifier les param tres du test revenir a la touche CODE" 7350 PRINT "ATTENTION ce program utilise le timer du M1500P" 7352 PRINT "Entrer le temps de test (001->999)"; 7355 INPUT tim$: IF LEN(tim$) = 0 THEN IF LEN(tim$) <> 3 THEN mes$ = "TMA" + tim$: GOSUB num = 1: endcy = GOSUB 8300: test de la boucle de securite 7365 LOCATE 11: PRINT " Cycle num ro :"; num: PRINT 7380 fin = mes$ = "MES": GOSUB 300: t3 = 1.5: GOSUB PRINT " Attente de la fin de la mesure..." 7391 mes$ = "TES": GOSUB 300: GOSUB PRINT "Valeur de la tension:"; (VAL(MID$(val$, 4, 10))); " Volts"; val$ 7395 IF fin = 0 THEN GOTO mes$ = "ISO": GOSUB 300: GOSUB PRINT "Valeur r sistance disolement:"; (VAL(MID$(val$, 4, 10)) / !); " Mohms"; val$ 7410 mes$ = "DEL": GOSUB 300 : LOCATE 17: PRINT "Fin de la mesure" 7411 mes$ = "DCH": GOSUB 300 : LOCATE 17: PRINT "Fin de la mesure" 7415 IF endcy = 0 THEN num = num + 1: GOTO mes$ = "TMA000": GOSUB 300: CLS : GOSUB 7250: RETURN touche PICO 7520 CLS : GOSUB 7550 Sefelec 49

51 7530 mes$ = "PIC": GOSUB GOTO GOSUB 200: off des keys 7560 KEY 1, "CYCLE" 7570 KEY 2, "ARRET" 7580 KEY 8, "RETOUR" 7590 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(8) GOSUB kmax = 2: GOSUB 250: KEY(8) ON: on des keys 7630 RETURN cycle de mesure en pico 7640 CLS : LOCATE 5: PRINT " D part du cycle de test en picoamp rem tre" 7645 PRINT : PRINT "Si vous voulez modifier les param tres du test revenir a la touche CODE" 7650 PRINT "ATTENTION ce program utilise le timer du M1500P" 7652 PRINT "Entrer le temps de test (001->999)"; 7655 INPUT tim$: IF LEN(tim$) = 0 THEN IF LEN(tim$) <> 3 THEN mes$ = "TMA" + tim$: GOSUB num = 1: endcy = GOSUB 8300: CLS : test de la boucle de securite 7665 PRINT " Cycle num ro :"; num: PRINT 7680 fin = mes$ = "MES": GOSUB PRINT " Attente de la fin de la mesure..." 7691 mes$ = "TES": GOSUB 300: GOSUB PRINT "Valeur de la tension:"; (VAL(MID$(val$, 4, 10))); " Volts "; val$ 7695 IF fin = 0 THEN GOTO mes$ = "COU": GOSUB 300: GOSUB PRINT "Valeur du courant:"; (VAL(MID$(val$, 4, 10))); " amp res "; val$ 7710 mes$ = "DCH": GOSUB 300: PRINT "Fin de la mesure" 7712 t3 =.4: GOSUB IF endcy = 0 THEN num = num + 1: GOTO mes$ = "TMA000": GOSUB 300: GOSUB 7550: RETURN demande darret du cycle 7900 endcy = 0: fin = LOCATE 22: PRINT "Demande darret prise en compte" 7920 RETURN touche de status 8000 fin = 0: num = PRINT "Appuyer sur F8 pour sortir" 8004 GOSUB 8100: touche f t2 = TIMER 8010 mes$ = "STA": GOSUB 300: GOSUB elapse = TIMER - t LOCATE num = num PRINT "Status de lappareil:"; val$; " retour no:"; num; " temps IEEE:"; elapse 8040 IF fin = 0 THEN CLS : GOSUB RETURN 8100 GOSUB KEY 8, "RETOUR" 8120 ON KEY(8) GOSUB KEY(8) ON 8132 RETURN 8140 fin = 1: RETURN test de la boucle de s curit 8300 mes$ = "STA": GOSUB 300: GOSUB IF (VAL(MID$(val$, 4, 2)) AND 1) = 0 THEN LOCATE 10, 10: PRINT "Boucle de s curit ouverte!!!": GOTO LOCATE 10, 10: PRINT "Boucle de s curit ferm e!!!" 8340 RETURN decodage du status byte pour SRQ 8400 IF stp% = 212 THEN fin = IF stp% = 211 THEN break = IF stp% = 213 THEN rise = IF stp% = 192 THEN ready = IF stp% = 194 THEN ready = IF stp% = 193 THEN ready = RETURN Relecture des m moires de stockages 8500 mes$ = "DTP": GOSUB 300: GOSUB nbrmax = VAL(MID$(val$, 2, 3)) 8520 IF nbrmax = 0 GOTO mes$ = "DTR001." + MID$(val$, 2, 3): PRINT mes$: GOSUB tm0 = TIMER 8530 FOR i = 1 TO nbrmax 8540 GOSUB PRINT i; val$ 8560 NEXT 8562 tm1 = TIMER: PRINT "Temps de relecture:"; tm1 - tm PRINT "Temps moyen par valeur :"; (tm1 - tm0) / nbrmax 8570 RETURN 8900 PRINT "Pas de valeur en m moire!!!!!!" 8910 RETURN Speed measurement in Megohm: NOD: NO Display,the new code to cancel the display during Sefelec 50

52 the measure CLS 9008 mes$ = "MGO,SOH+0.000E+06,TMA000": GOSUB GOSUB 9400: tim0 = TIMER 9010 fin = 0: i = i = i tim1 = TIMER 9040 mes$ = "MES": GOSUB t3 =.1: GOSUB mes$ = "ISO": GOSUB 300: GOSUB sign$ = MID$(val$, 4, 1): <:the value is lower than the displayed resistance >:the value is higher than the displayed resistance +:the value is the measured resistance 9050 resi = VAL(MID$(val$, 5, 10)) 9060 IF resi >= (VAL(lim$) * !) THEN resul$ = " G O O D " 9070 IF resi < (VAL(lim$) * !) THEN resul$ = " B A D!" 9080 tim2 = TIMER - tim IF i = 100 THEN PRINT "Time for 100 measures:"; TIMER - tim PRINT i, sign$; resi; "ohms", resul$ 9102 mes$ = "DCH": GOSUB t3=0.1:gosub 600 : 100 ms=minimum discharge time 9110 IF fin = 0 THEN PRINT "End of test!!" 9114 PRINT "Total time ="; TIMER - tim0; " seconds for:"; i; " points" 9116 PRINT "Average time ="; (TIMER - tim0) / i; " seconds" 9120 RETURN 9300 fin = RETURN Test parameters input: to increase the speed,the unit must work with the locked ranges mode.look on line 9044 to get the info for under or over range. To find the right range: 9400 CLS 9410 PRINT "Test voltage ("; volt$; "):"; 9420 INPUT rep$ 9430 IF LEN(rep$) = 0 THEN rep$ = volt$ ELSE volt$ = rep$ 9440 ten% = VAL(rep$): GOSUB PRINT "Insulation resistance limit ("; lim$; ") Mohm:"; 9460 INPUT rep$ 9470 IF LEN(rep$) = 0 THEN rep$ = lim$ ELSE lim$ = rep$ 9472 IF LEN(rep$) = 0 THEN gam$ = "GM00" ELSE GOTO GOTO gami = ten% / (VAL(rep$) * !) 9490 PRINT gami 9500 IF gami >.002 THEN gam$ = "GM01" ELSE GOTO GOTO IF gami >.0002 THEN gam$ = "GM02" ELSE GOTO GOTO IF gami > THEN gam$ = "GM03" ELSE GOTO GOTO IF gami > THEN gam$ = "GM04" ELSE GOTO GOTO IF gami > THEN gam$ = "GM05" ELSE GOTO GOTO IF gami > 2E-08 THEN gam$ = "GM06" ELSE GOTO GOTO IF gami > 2E-09 THEN gam$ = "GM07" ELSE GOTO GOTO IF gami > 2E-10 THEN gam$ = "GM08" ELSE GOTO GOTO IF gami > 2E-11 THEN gam$ = "GM09" ELSE gam$ = "GM10" 9600 PRINT gam$ 9610 mes$ = gam$: GOSUB RETURN Speed measurement in Megohm: NOD: NO Display,the new code to cancel the display during the measure. Sans passage en decharge 9700 CLS 9708 mes$ = "MGO,SOH+0.000E+06,TMA000,VIR,NOD": GOSUB GOSUB 9400: tim0 = TIMER 9710 fin = 0: i = i = i tim1 = TIMER 9740 mes$ = "MES": GOSUB mes$ = "ISO": GOSUB 300: GOSUB sign$ = MID$(val$, 4, 1): <:the value is lower than the displayed resistance >:the value is higher than the displayed resistance +:the value is the measured resistance 9750 resi = VAL(MID$(val$, 5, 10)) 9760 IF resi >= (VAL(lim$) * !) THEN resul$ = " G O O D " 9770 IF resi < (VAL(lim$) * !) THEN resul$ = " B A D!" 9780 tim2 = TIMER - tim IF i = 100 THEN PRINT "Time for 100 measures:"; TIMER - tim PRINT i, sign$; resi; "ohms", resul$ 9810 IF fin = 0 THEN PRINT "End of test!!" 9814 PRINT "Total time ="; TIMER - tim0; " seconds for:"; i; " points" 9816 PRINT "Average time ="; (TIMER - tim0) / i; " seconds" 9817 mes$ = "DCH": GOSUB RETURN mode retour de mesures par srq CLS : PRINT " Valable pour les versions 1.01 et suivantes (faire RETURN pour sortir)" Sefelec 51

53 10002 PRINT " Utilisation de la fonction SRI pour travailler uniquement avec SRQ" PRINT " Mode M gohmm tre (M) ou Picoamperemetre (P) :"; INPUT r$ IF LEN(r$) = 0 THEN IF r$ = "M" THEN mes$ = "MGO" IF r$ = "P" THEN mes$ = "PIC" IF r$ <> "M" AND r$ <> "P" THEN GOTO GOSUB mes$ = "SRI": GOSUB fin = 0: num = 0: ready = 0: rise = PRINT "Appuyer sur F8 pour sortir" GOSUB 8100: touche f mes$ = "MES": GOSUB IF r$ = "M" THEN mes$ = "ISO" IF r$ = "P" THEN mes$ = "COU" GOSUB LOCATE 15, 1: PRINT "Attente de la mesure no:"; num IF fin = 1 THEN IF ready = 0 THEN LOCATE 16, 1: PRINT "R ception de la mesure no:"; num GOSUB LOCATE 17, 1: PRINT "Valeur re ue : "; val$ mes$ = "DCH": GOSUB 300: ready = 0: num = num + 1: GOTO mes$ = "DCH": GOSUB CLS : PRINT "Sortie du mode SRI. Clear du M1500P" PRINT #5, "clear" + a$ GOSUB 7100: RETURN ACquisition de mesures pour PB EDF sur capas CLS : PRINT "D but du test " mes$="pic,gm00,tma000,vol+1.000e+02,vif":gosub i = 0: fin = mes$ = "MES": GOSUB mes$="cou":gosub 300:gosub 320:i=i mes$ = "ISO": GOSUB 300: GOSUB 320: i = i PRINT i; val$; " "; mes$ = "TES": GOSUB 300: GOSUB 320: PRINT val$ lprint i;val$ IF fin = 0 THEN mes$ = "DCH": GOSUB RETURN Check of the voltage rising CLS mes$ = "MGO": GOSUB PRINT "Test voltage ("; volt$; "):"; INPUT rep$ IF LEN(rep$) = 0 THEN rep$ = volt$ ELSE volt$ = rep$ ten% = VAL(rep$): GOSUB 400: sending the voltage FOR i = 1 TO mes$ = "MES": GOSUB 300: going in to mmeasurement t1 = TIMER mes$ = "TES": GOSUB 300: GOSUB 320: reading the voltage te1% = VAL(RIGHT$(val$, 10)) PRINT te1% t2 = TIMER: measuring test time mes$ = "DCH": GOSUB 300: discharge PRINT "Temps : "; t2 - t NEXT i RETURN relecture de øc et %HR CLS : fin = 0: PRINT "Appuyer sur F10 pour arr ter" mes$ = "OPT110,MGO,MES": GOSUB mes$ = "TCF": GOSUB 300: GOSUB PRINT val$ mes$ = "HUM": GOSUB 300: GOSUB PRINT val$ IF fin = 0 THEN mes$ = "DCH": GOSUB PRINT "Fin de test": RETURN Sefelec 52

54 SECTION II : OPTIONS DESCRIPTION II-1 Option 01 : Temperature and relative humidity measurement II-1-1 PRESENTATION Option 01 of the M1501P, M1501M et M1501U provides simultaneous measurement of temperature and relative humidity. The technical solution used is based on amplification and conversion of electrical quantities representing the physical phenomena and delivered by a transmitter. This enables the user to associate measurement results in megohmmeter or picoammeter mode with ambient temperature and humidity conditions. II-1-2 OPERATION To find out whether your instrument is fitted with this option (among others), follow the instructions below. At start-up, press the [CONFIG] key. C O N T R A S T E W I T H A R R O W S : ^v BEEP : ON I E E E A D D R E S S : 0 6 M E A S U R E M E N T T I M E : N O R M A L C U R R E N T L I M I T A T I O N : 2 0 M A V E R S I O N : I D A T E : BEEP B E E P T I M E O P T I O N END Press on [OPTION] : 1 > T E M P A N D R E L. H U M I D I T Y : YES 2 > O U T P U T V L I N : NO 3 > P L C C O N T R O L : NO 4 > R E A R P A N E L C O N N E C T O R S : NO 5 > M E A S U R E M E N T S T O R A G E : NO 6 > M E G O H M x K M : NO The table above lists the possible options and indicates by YES or NO those available on your instrument. Sefelec 53 END

55 II-1-3 OPTION 01 DISPLAY In the previous screen (option screen), press key OPT1. This gives: If the function is inactive (OFF): T E M P E R A T U R E R E L. H U M I D I T Y END O N C If the function is active (ON), for example: T E M P E R A T U R E R E L H U M I D I T Y C +64% END O F F C The keys of this screen are defined as follows: - END: Exit from test screen - ON/OFF: Start-up (ON) or shutdown (OFF) of the function. - C/ F: Choice of temperature display unit: C for degrees CENTIGRADE and F for degrees FAHRENHEIT (9/5 C+32 ) Sefelec 54

56 II-1-4 DISPLAY IN MEASUREMENT MODE When option 1 is active the temperature and relative humidity values are displayed continuously during measurement in the left-hand section of the function key strip. This applies in both megohmmeter and picoammeter mode. Example: 2000 T R > L I M I T M E G O H M M E T E R M9 V O L T A G E : V = L I M I T : M o T I M E : S R A N G E : A U T O C 6 4 % H R R E S E T Sefelec 55

57 II-1-5 TRANSMITTER SELECTION As the is calibrated in relation to the transmitter used, the choice of transmitter must always be indicated when ordering the measuring instrument. The user can either opt for the default SEFELEC transmitter or propose any other transmitter provided it is compatible in terms of measurement range and the type and amplitude of signals it delivers. For information, the signals accepted and measurement range are: Limit values: +100 C/-100 C Max. range: 100 C Signals: 0/20MA * 4/20MA * 0/1V ** 0.25V/1.25V 0/5V ** * Current source mode only ** Recommended "Current source" mode I C / F HR The choice must always be validated by our technical department. The can only be used with one type of transmitter (SEFELEC or User) I Sefelec 56

58 II-1-6 CONNECTIONS The input signals and power supplies required are accessible on the rear panel of the unit on a SUB D 25-pin female connector. 11 : Temperature input 24 : Relative humidity input 12 : +24V 1 : 0 V/COMMON II-1-7 CHARACTERISTICS Electronic parts: Function : Temperature Humidity Resolution : 0.1 C / F + / - 1% RH Accuracy : + / - (0.5 C + 5 Digits) + / - (5%RH + 5 Digits) Supplied sensor : Function : Temperature Humidity Measurement range -20 à 80 C 0 à 100%HR Temp. coefficient +/ C / C + / % HR/ C Accuracy + / - (0.3 C ) + / - (3% ) II-1-8 ASSOCIATED IEEE 488 CODES Setup code: Activation and choice of the temperature display unit. OPT1 x x 1 : F 0 : C 1 : ON 0 : OFF Display value reading code Temperature acquisition. Temperature is given in C (DGC) or F (DGF). TCF DGC+x.xxx+E02 DGF+x.xxx+E02 Relative humidity acquisition HUM HR%+x.xxx+E01 Sefelec 57

59 II-2 OPTION 02 : 0-10 VOLT ANALOG OUTPUT II-2-2 DESCRIPTION AND SPECIFICATION : The option 02 for the Teraohmmeters M1501P, M1501M and M1501U generates a linear or a logarithmic analog voltage from 0 to 10 volts DC proportional with the measurement values. This voltage can be connected to a multimeter or a plotter to follow and keep record of the measurement drifts and variation. SPECIFICATIONS : Output voltage : 0 to 10 volts DC by 2.44mV steps Output impedance : 1 kohm +/-5% Insulation : no insulation, ground connected to earth Output connector : sub-d on rear panel Output voltage accuracy ( regarding the displayed value) : - in linear mode : +/- (0.1%+2.44mV) - in log. mode : +/- (0.1%+24.4mV) Output voltage function of the display : - In linear mode and megohmmeter : The linear mode must operate only in the manual range mode, for the automatic range mode refer to the logarithmic mode. From 1 to 10 volts per decade for insulation resistance from k to 2000 T A measurement decade being defined for a display from 0201 to 2000, in example : Display Output volt M VDC M VDC M VDC M VDC In linear mode and picoammeter : The linear mode must operate only in the manual range mode, for the automatic range mode refer to the logarithmic mode. From 1 to 10 volts per decade for insulation resistance from 00.50pA à ma (03.00 ma pour M1501U) A measurement decade being defined for a display from 0201 to 2000, in example : Display Output voltage µa VDC µa VDC µa VDC µa VDC Sefelec 58

60 - In logarithmic mode and megohmmeter: From 0 to 10 volts per decade for insulation measurement from k to 2000 T with a logarithmic trend, in example : Display Output voltage k VDC k VDC M VDC M VDC M VDC T VDC 2000 T VDC - In logarithmic mode and picoammeter : From 0 to 10 volts per decade for insulation measurement from 2.00pA to ma with a logarithmic trend, in example : Display Output voltage pa VDC pa VDC pa VDC pa VDC na VDC ma VDC ma VDC Sefelec 59

61 II-2-2 OPERATION : II Checking option 02 presence : To find out whether your instrument is fitted with this option (among others), follow the instructions below. At start-up, press the [CONFIG] key. C O N T R A S T E W I T H A R R O W S : ^ v BEEP : ON I E E E A D D R E S S : 0 6 M E A S U R E M E N T T I M E : N O R M A L C U R R E N T L I M I T A T I O N : 2 0 M A V E R S I O N : I D A T E : BEEP B E E P T I M E O P T I O N END Press on [OPTION] : 1 > T E M P A N D R E L. H U M I D I T Y : NO 2 > O U T P U T V L I N : YES 3 > P L C C O N T R O L : NO 4 > R E A R P A N E L C O N N E C T O R S : NO 5 > M E A S U R E M E N T S T O R A G E : NO 6 > M E G O H M x K M : NO END The table above lists the possible options and indicates by YES or NO those available on your instrument. Sefelec 60

62 II Linear or logarithmic mode selection : Press several time on the OPT2 function key to displat the Lin or LOG mode. LOG mode display: 1 > T E M P A N D R E L. H U M I D I T Y : NO 2 > O U T P U T V L OG : YES 3 > P L C C O N T R O L : NO 4 > R E A R P A N E L C O N N E C T O R S : NO 5 > M E A S U R E M E N T S T O R A G E : NO 6 > M E G O H M x K M : NO O P T 2 END The LIN or LOG mode is memorized after switching off the unit. II Analog output terminals : The analog voltage for the insulation resistance or the current is available on a sub-d 25 points connector on the rear panel unit. - ground : point VDC : point 25 Sefelec 61

63 II-2-3 Insulation resistance values versus analog voltage in logarithmic mode : Each measurement range is linked to a voltage according the following [TB1] board : Range Min. Max. Voltage M M 0 VDC M M 1 VDC M M 2 VDC G G 3 VDC G G 4 VDC G G 5 VDC T T 6 VDC T T 7 VDC T T 8 VDC T 2000 T 9 VDC To each of these voltages it is necessary to add a value according to the following formula : Log10 (Nb displayed digits / 200) In example for a 100 M measurement resistance : The LCD display will give : M, which is linked to the range 2 of the TB1 board. The analog voltage will be : 2 vdc + Log (1000/200) = 2,6989 VDC In the other way, to find out the insulation resistance with the analog voltage, proceed as follows: - measure the analog voltage with a multimeter, in example : 2,6989 VDC - subtract the volt number, 2 VDC in our example, this will give the display format according to the TB1 board : xxx.x M - calculate the number of digits with the following formula : 200 x 10 exp (Umeasured Urange) = 200 x 10 exp (2,6989-2) = 200 x 10 exp (0,6989) = 200 x 5 = 1000 digits, displayed on a format : xxx.x M Sefelec 62

64 II-2-4 Current values versus analog voltage in logarithmic mode : Each current measurement range is linked to a voltage according the following [TB2] board Range Min. Max. Voltage pA 20.00pA 0 VDC pA 200.0pA 1 VDC nA 2.000nA 2 VDC nA 20.00nA 3 VDC nA 200.0nA 4 VDC µA 2.000µA 5 VDC µA 20.00µA 6 VDC µA 200.0µA 7 VDC mA 2.000mA 8 VDC mA 20.00mA 9 VDC To each of these voltages it is necessary to add a value according to the following formula : Log10 (Nb displayed digits / 200) In example for a 100 na current measurement : The LCD display will give : na, which is linked to the range 4 of the TB2 board. The analog voltage will be : 4 vdc + Log (1000/200) = 4,6989 VDC In the other way, to find out the current with the analog voltage, proceed as follows: - measure the analog voltage with a multimeter, in example : 4,6989 VDC - subtract the volt number, 4 VDC in our example, this will give the display format according to the TB2 board : xxx.x na - calculate the number of digits with the following formula : 200 x 10 exp (Umeasured Urange) = 200 x 10 exp (4,6989-4) = 200 x 10 exp (0,6989) = 200 x 5 = 1000 digits, displayed on a format : xxx.x na n Sefelec 63

65 II-3 OPTION 03 : PROGRAMMABLE LOGIC CONTROLLER INTERFACE II-3-1 DESCRIPTION : The option 03 allows either the control of the complete measurement unit functions by a system like a Programmable Logic Controller (PLC) either the control of the Measurement / Discharge cycle by a simple switch. II-3-2 ELECTRICAL CHARACTERISTICS : INPUTS: Number : 8 Type : optoelectronic Input resistance : 1.5 kohms Umin : 11 Vdc Umax : 43 Vdc Umin : 8 Vac Umax : 30 Vac OUTPUTS: Number : 6 Type : dry contacts Switching rate : 30 W Max. voltage : 70 Vdc Max. permanent current : 0.15 Adc Sefelec 64

66 II-3-3 OPERATION : II INPUT SIGNAL DEFINITION: COMI/0: Electrical ground for inputs and outputs. CTRLIN: Request for remote control of the measurement unit. The result of the request is confirm or not by the output signal CTRLOUT. Important : Any action cannot be valid before the CTRLIN signal. TYPE: Choice of the measurement function : logical state 1: PICOAMPEMETER logical state 0: MEGOHMMETER MES/DCH: Indicate the measurement or discharge state. logical state 1 : measurement logical state 0 : discharge DTR: give the time when the data on the input bus are valid. N0 N3: data lines for a binary word on 4 bits ( between 0 and 15 with N0 = least significant bit and N3 = most significant bit ). The data lines indicate the number of the parameter set ( Memory locations M0 to M9 ) to be used. The data 10 ($0A) is a dedicated value to the remote control by a simple switch function. ( refer to section II-3-6) Sefelec 65

67 II OUTPUT SIGNAL DEFINITION : CTRLOUT: See CTRLIN. BOUCLE: Contact closed if the safety loop is open. BUSY: The contact of the relay is closed when the measurement unit is reading the data on the input bus. BUSY signal is an handshake for the DTR signal. IMPORTANT : when the contact BUSY is opened, it indicates that the output data are valid. FINTEST: End of test contact. RESULTAT: The contact of the relay is closed when the measurement result is lower than the Preset limit and the contact is opened if the measurement result is higher. DEFAUT: The contact of the relay is closed when a test voltage fault occurs. Sefelec 66

68 II-3-4 CONNECTIONS The previously described set of input/output signals are available on the rear panel of the unit on a 25 points Sub-D connector 19 TYPE 16 COMI/O 8 CTRLOUT 21 BOUCLE 9 BUSY 22 FINTEST 10 RESULTAT 23 DEFAUT 4 CTRLIN 17 N0 5 N1 18 N2 6 N3 7 MES/DCH 20 DTR 1 0 volt 3 24 volts (200 ma max) 14 Connection with pin1= safety loop closed 13 Ground analog output 25 Analog output 24 Humidity input %HR 11 Temperature input θ 12 24VDC for captor 2 Normally opened contact lamp Red/Green 15 Normally closed contact lamp Red/Green Sefelec 67

69 Table sorted by pin number : 1 0 volt 2 Normally opened contact lamp Red/Green 3 24 volts (200 ma max) 4 CTRLIN 5 N1 6 N3 7 MES/DCH 8 CTRLOUT 9 BUSY 10 RESULTAT 11 Temperature input θ 12 24VDC for captor 13 Ground analog output 14 Connection with pin1= safety loop closed 15 Normally closed contact lamp Red/Green 16 COMI/O 17 N0 18 N2 19 TYPE 20 DTR 21 BOUCLE 22 FINTEST 23 DEFAUT 24 Humidity input %HR 25 Analog output Sefelec 68

70 II-3-5 TIMINGS II Rules for input: High logical state : DC or AC voltage between Umin and Umax. Low logical state : No voltage. II Rules for outputs : High logical state: Closed contact. Low logical state: Open contact. PLC CONNECTION IN OUT OUT IN U=24V AC or DC COMI/O (16) PLC M1501 Sefelec 69

71 MEASUREMENT DISCHARGE CYCLES : CTRLIN CTRLOUT TYPE N0 N3 MES/DCH DTR BUSY Data valid Data reading Measurement request + memory number, type, Result OK Request for discharge Unit under PLC control Request for unit control Sefelec 70

72 MEASUREMENT UNIT PLC RESPONSE : DEFAUT RESULTAT FINTEST BUSY Début test * ** * : the set of a data occurs 10 ms before the falling edge of BUSY signal ** : time for data valid. The Safety loop must be closed to start a test. When using the internal timer of the unit for the test time, the data RESULTAT (mes<seuil) is valid 1 second before the end of the test time. Sefelec 71

73 II-3-6 REMOTE CONTROL BY SWITCH OF THE MEASUREMENT / DISCHARGE CYCLE : It is possible to trigger a measurement / discharge cycle by an external switch. In example with a foot switch to be connected between the pin 7 and 3 of the Sub-D connector. However the others data lines must be connected like follows : signal connections COMI/O 16 1 CTRLIN 4 1 N N1 5 3 N N3 6 3 MES/DCH 7 3 MES/DCH : HIGH logical state -> MEASUREMENT mode (link between 7 3) LOW logical state -> DISCHARGE mode (no linl between 7 and 3) TYPE: allows to switch from one function of the unit to the other (see section II-3-3-1). Nota : All the output data are available in this mode (FINTEST, DEFAUT, RESULTAT,... ) Sefelec 72

74 II-5 OPTION 05 : MEASUREMENT DATA MEMORIZATION II-5-1 DESCRIPTION : The option 05 for M1501P, M1501M and M1501U Teraohmmeters gives a data storage feature for the measurement results. The maximum number as well as the type of stored data can be selected by the operator. II-5-2 OPERATION : To find out whether your instrument is fitted with this option (among others), follow the instructions below. At start-up, press the [CONFIG] key. C O N T R A S T E W I T H A R R O W S : ^ v BEEP : ON I E E E A D D R E S S : 0 6 M E A S U R E M E N T T I M E : N O R M A L C U R R E N T L I M I T A T I O N : 2 0 M A V E R S I O N : I D A T E : BEEP B E E P T I M E O P T I O N END Press on [OPTION] : 1 > T E M P A N D R E L. H U M I D I T Y : NO 2 > O U T P U T V L I N : NO 3 > P L C C O N T R O L : NO 4 > R E A R P A N E L C O N N E C T O R S : NO 5 > M E A S U R E M E N T S S T O R A G E : Y E S 6 > M E G O H M x K M : NO O P T 5 END The table above lists the possible options and indicates by YES or NO those available on your instrument. Sefelec 73

75 II-5-3 OPERATION MODES The option 05 makes possible to store and to view between 256 and 512 measurements. Those measurements can be sequential or not, related to only the megohmmeter, only the picoammeter or to both function. Together with the measurement result you will find the registration number ( 1 to 256 or 512), the parameter memory number related to the measurement, and on option, the comparison result with the preset threshold. Together with the main storage feature a statistic function is available with the following features : Total number of measurements (TOTAL= ) Pass number of measurements (PASS=) Fail number of measurements (FAIL=) II-5-4 CONTROL FUNCTION : The access to the various control is done through 3 screen pages. Screen scrolling is possible with the [OPT5] key in the options screen and then by repetitive press on the [NEXT] key in each screen page. Sefelec 74

76 II-5-5 CONTROL SCREEN n 1 : N U M M V A L U E N U M M V A L UE END P A G E - P A G E + N E X T B O T H - END: Return the "" initialization screen. PAGE+: Scrolling up "page by page" of the stored measurements. PAGE-: Scrolling down "page by page" of the stored measurements. NEXT: Display the screen number 2 BOTH- : Toggle Key, press repetitively to display BOTH- or BOTH+. Allows or not the measurement storage in Megohmmeter and Picoammeter with : BOTH+: measurement storage in both function ( Megohmmeter and Picoammeter) BOTH- : according to the M, PA selection, allows the storage in Megohmmeter or in Picoammeter. Sefelec 75

77 II-5-6 CONTROL SCREEN n 2 : N U M M V A L UE N U M M V A L UE C L E A R O FF N E X T Mo CLEAR: Complete reset of the option memory with the whole data lost. ON/OFF: Set ON or OFF the option /512: Gives the maximum measurement number. WARNING : The value is set in the 256 position if the BOTH+ mode is selected in the screen n 1. NEXT: Display control screen n 3 MO/PA: Set the measurement type to be stored. WARNING! This key is not present in the BOTH+ mode Sefelec 76

78 II-5-7 CONTROL SCREEN n 3 : T O T A L = PASS = F A I L = S T A T I S T I CS END N E X T END: Return the "" initialization screen. NEXT: Display control screen n 1 The control screen n 3 shows the statistics feature. The data are updated after each measurement and can be read at any time. WARNING! The number of «PASS=» or «FAIL=» are given only in the following operation mode: 256 M PA This is because the measurement comparison result with a threshold is not interpreted in the same way in Megohmmeter mode and in Picoammeter mode. In Megohmmeter : Measured resistance > Threshold => Insulation PASS In Picoammeter : Measured current > Threshold => Insulation FAIL Sefelec 77

79 II-5-8 RESULTS DISPLAY N U M M V A L UE N U M M V A L UE T o T o T o T o < T o < END P A G E - P A G E + N E X T B O T H - Data display is done with two columns. It shows a maximum of 10 measurement results, with respectively in the NUM, M, VALUE columns, the registration number, the memory parameter number and the measurement value. On some results on the right hand side the < symbol is displayed. This shows a FAIL measurement ( in Megohmmeter ), which means a measurement value lower than the preset threshold. This latest information is available only according to the following operation mode : 256 M PA Sefelec 78

80 II-5-9 RESULT CLEAR : A L L C L E A R I N G? YES : V A L I D C L E A R O N N E X T Mo The memory clear operation is possible with the [CLEAR] key. Before the complete and definitive memorized data clear, for safety reason the unit asks to confirm the operation by pressing the [VALID] key. To abort the operation press on the [NEXT] key. Sefelec 79

81 II-5-10 STATUS INDICATOR : 2000 T R > LIMIT M E G O H M M E T ER M9 V O L T A G E : V = L I M I T : M o T I M E : S R A N G E : A U T O R E S E T Correct operation of the option 5 requires to know a few information like if it is ON or OFF and if ON for which function : megohmmeter, picoammeter or both? Also it is important to know if the memory is empty, with data or full. Those information are given by a graphic icon as a rectangle on the right handside of the measurement result display window. It has to be interpreted as follows : "Empty Rectangle " The option 5 is ON for the selected function, but no measurement has been stored. "Half filled Rectangle " The option 5 is ON and at least one result has been stored in the memory "Full Rectangle" The option is ON, but the memory is full. Sefelec 80

82 II-6 OPTION 06 : MEGOHM PER KILOMETER DISPLAY II-6-1 DESCRIPTION : The purpose of the option 06 is to reduce the insulation value obtained over a given cable length to "KM". This cable may contain a certain number of independent conductors tied together for this purpose. The displayed insulation value is the result of the following calculation: Rdisplay = (Rmeasured x Length in meter x Nbre of wire) / 1000 II-6-2 OPERATION : To find out whether your instrument is fitted with this option (among others), follow the instructions below. At start-up, press the [CONFIG] key. C O N T R A S T E W I T H A R R O W S : ^ v BEEP : ON I E E E A D D R E S S : 0 6 M E A S U R E M E N T T I M E : N O R M A L C U R R E N T L I M I T A T I O N : 2 0 M A V E R S I O N : I D A T E : BEEP B E E P T I M E O P T I O N END Press on [OPTION] : 1 > T E M P A N D R E L. H U M I D I T Y : NO 2 > O U T P U T V L I N : NO 3 > P L C C O N T R O L : NO 4 > R E A R P A N E L C O N N E C T O R S : NO 5 > M E A S U R E M E N T S T O R A G E : NO 6 > M E G O H M x K M : Y E S END The table above lists the possible options and indicates by YES or NO those available on your instrument. Sefelec 81

83 II-6-3 MEGOHM PER KILOMETER FUNCTION SETTING : Parameters such as cable length and number of wires are entered on screen 1 of option 6. In the previous screen (option screen), press key OPT6. This gives: M E G O H M X K M C A B L E L E N G T H : M W I R E I N P A R A L L E L E : END O F F L E NGTH C A B L E - END : Exit from test screen - ON / OFF : Calculation function ON or OFF. - LENGTH : Enter cable length. This can be in "m" or "km" (unit selected using up/down arrows). The limit values are: Minimum Maximun M (meter) KM (kilometer) CABLE : Enter the number of strands connected in parallel. The value must be between 1 and REMARK The function status (ON or OFF) and the characteristics of the drum being tested (LENGTH and CABLE) are saved in the memory. Nil values cannot be interpreted for any of the parameters, and if they are entered the parameter concerned is automatically changed to 0001 or Sefelec 82

84 II-6-4 MEASUREMENT DISPLAY IN MEGOHM PER KILOMETER When option 6 is active, the measurement results in megohmmeter change automatically because the unit currently in use (To in the example below) is followed by the unit km. Example: 2000T KM R > LIMIT M E G O H M M E T E R M9 V O L T A G E : V = L I M I T : M o T I M E : S R A N G E : A U T O R E S E T Calculation example : A 100 meters long cable with 5 wires in parallel gives an insulation resistance of 500 Mohm in normal measurement mode. In Megohm per kilometer the unit will show a display of: Rdisp = (500Mo x 100m x 5) / 1000 = 2500 MoKM = 2.5 GoKM Sefelec 83

85 II-7 OPTION 07 : RS232 INTERFACE II-7-1 DESCRIPTION : The option 07 for M1501P, M1501M et M1501U teraohmmeters allows to remote control the units from a PC computer through a RS232 interface. The interface replace the IEEE488 for the M1501P model. II RS232 configuration: Speed : 9600 bauds Parity : without Number of bits : 8 Stop bits : 2 Protocol : Xon/Xoff II Connection to a PC : To connect the unit to a PC computer, use a cable with the following connections : Unit PC Signal Sub-D 9 pins Sub-D 9 pins 1 1 DCD 2 2 RX 3 3 TX 4 4 DTR 5 5 GND 6 6 DSR 7 7 RTS 8 8 CTS 9 9 Sefelec 84

86 II Programming RS232 codes: Please refer to the I-6 section ( Operation in remote control mode) for the complete programming codes. The RS232 interface includes the following additional codes : LLO : In the remote mode, this code locks the return to local mode from the front panel push button PRO LOCAL. DLO : allows the return to local mode from the front panel «PRO LOCAL» push button. LOC : set the unit in local mode. Special error codes for the RS232 interface: RS232C :06 = RS232 overflow RS232C :07 = format error on the received byte ( number of bit, ) RS232C :08 = parity error RS232C :09 = Xoff received and waiting for Xon from the PC Status byte definition : When any event occurs, the unit will generate a status byte with the following meaning ( similar to the SRQ byte with the IEEE488 interface). STB Meaning STB00 Safety loop open in measurement mode STB01 R < limit STB02 R > limit STB03 Not used STB04 End of test STB40 Format error STB41 Parameter out of limit STB42 Code not compatible with the parameters STB43 Discharge request from the front panel STB44 Request for local in LLO mode STB70 Request for TES, ISO or COU in discharge mode Sefelec 85

87 Program example for and option07 : TSM150xR: program de test de M1500P avec option 07 (RS232C) Date de création : rédacteur:dd Date de modification: rédacteur:pv 8 SCREEN 0, 0, 0: COLOR 10, 1 10 CLS definition de variables: 12 a$ = "06": val$ = SPACE$(100): sort% = 0 14 debug = 0: mettre 1 dans le cas ou il ny a pas dappareil IEEE connect initialization de la communication s rie (COM1) 20 OPEN "COM1:9600,n,8,2,LF" FOR RANDOM AS #5 70 ON COM(1) GOSUB COM(1) ON 90 XONREC = 1: XOFFREC = 0 definition des touches de fonction 112 GOSUB GOSUB 6000: titre 114 GOTO GOSUB 200: off des keys 122 KEY 1, "CODE" 130 KEY 2, "MESURE" 140 KEY 3, "" 141 KEY 7, "RESET" 142 KEY 8, " FIN " 160 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(3) GOSUB ON KEY(7) GOSUB ON KEY(8) GOSUB kmax = 3: GOSUB 250: KEY(8) ON: KEY(7) ON on des keys 198 RETURN 199 END sous program de off key 200 FOR i = 1 TO KEY i, "" 212 KEY(i) OFF 220 NEXT i 222 KEY OFF 230 RETURN sous program de on key:kmax contient le numero de la derniere touche fonction validee contigue 250 FOR i = 1 TO kmax 260 KEY(i) ON 270 NEXT i 272 KEY ON 280 RETURN envoi dun message sur la liaison RS232C mes$ contient le code a envoyer 300 IF debug = 1 THEN IF XOFFREC = 1 THEN GOTO 302 ELSE GOTO GOTO COM(1) OFF: PRINT #5, mes$ : PRINT "mes$= "; mes$: PRINT #5, mes$ 305 val$ = INPUT$(1, #5) 306 IF val$ = CHR$(19) THEN XOFFREC = 1: XONREC = 0: GOTO XOFF 307 IF val$ = CHR$(17) THEN XONREC = 1: XOFFREC = 0: GOTO 310 ELSE GOTO 305 XON 308 IF (mes$ = "TES") OR (mes$ = "ISO") OR (mes$ = "COU") OR (mes$ = "STA") OR (mes$ = "DTP") OR (mes$ = "TCF") OR (mes$ = "HUM") THEN GOTO 313 ELSE GOTO IF (mes$ = "MES,TES") THEN GOTO 313 ELSE GOTO IF (mes$ = "MES") OR (mes$ = "ISO") THEN GOTO COM(1) ON: T3 = 2: GOSUB 600 : GOTO COM(1) ON 315 RETURN reception dun message sur la liaison RS232C val$ contient le code recu 320 IF debug = 1 THEN PRINT "val$= "; PRINT #5, "enter" + a$ 325 IF MESRET = 0 THEN GOTO RETURN LINE INPUT #5, val$ 335 VALEUR$ = INPUT$(1, #5) 340 IF VALEUR$ = CHR$(19) THEN PRINT "XOFF RECU": RETURN 345 IF VALEUR$ = CHR$(17) THEN PRINT "XON RECU": RETURN 346 IF VALEUR$ = CHR$(10) THEN PRINT : RETURN 350 val$ = val$ + VALEUR$: GOTO RETURN 360 val$ = "*****": RETURN envoi dun code tension avec formattage ten% contient la valeur de tension 400 IF debug = 1 THEN COM(1) OFF 402 IF ten% > 99 THEN PRINT #5, USING "VOL+#.###^^^^"; ten%: GOTO PRINT #5, USING "VOL+0.###^^^^"; ten% 420 GOTO 305 Sefelec 86

88 traitement des interruptions RS232C COM(1) OFF 520 val$ = "" 526 VALEUR$ = INPUT$(1, #5) 527 IF VALEUR$ = CHR$(19) THEN XOFFREC = 1: XONREC = 0: GOTO 590 XOFF 528 IF VALEUR$ = CHR$(17) THEN XONREC = 1: XOFFREC = 0: GOTO 590 XON 529 IF VALEUR$ = CHR$(10) THEN GOTO val$ = val$ + VALEUR$: GOTO 526 PRINT VALEUR$; : GOTO IF LEFT$(val$, 3) = "STB" THEN GOTO IF LEFT$(val$, 3) = "VOL" THEN GOTO IF LEFT$(val$, 3) = "OHM" THEN GOTO IF LEFT$(val$, 3) = "STA" THEN GOTO IF LEFT$(val$, 1) = "N" THEN GOTO IF LEFT$(val$, 3) = "DGC" THEN GOTO IF LEFT$(val$, 3) = "DGF" THEN GOTO IF LEFT$(val$, 3) = "HR%" THEN GOTO IF LEFT$(val$, 3) = "AMP" THEN GOTO 550 ELSE GOTO stp% = VAL("&H" + MID$(val$, 4, 2)) : PRINT "stp% = "; stp%, 541 IF (stp% AND 64) = 0 THEN GOTO GOSUB 8400: decodage du status byte 543 PRINT "srq!!!!:"; stp%: GOTO MESRET = 1 : PRINT "MESRET="; MESRET 590 COM(1) ON: RETURN boucle de tempo: t3=valeur en seconds tempo 600 t = TIMER 610 WHILE t <> 0: t2 = TIMER: IF t2 - t >= t3 THEN t = WEND 630 RETURN Remise en mode Local avec reset de lappareil 700 CLS : KEY OFF: LOCATE 9, 30: PRINT "ATTENTE du Xon": 705 mes$ = "LOC": GOSUB 300: CLS : KEY ON 710 RETURN traitement de lenvoi de codes un par un 1000 CLS 1010 GOSUB 200: off des keys 1020 PRINT "Entrer le code envoyer en MAJUSCULES (return = sortie):"; 1030 LINE INPUT cod$ 1032 IF LEN(cod$) = 0 THEN mes$ = cod$: GOSUB GOTO CLS : GOSUB 120: RETURN cycles de mesures 7000 CLS 7010 GOSUB GOTO GOSUB 200: off des keys 7110 KEY 1, "MEGOHM" 7120 KEY 2, "PICO" 7122 KEY 3, "RESET" 7124 KEY 4, "MESDCH" 7126 KEY 5, "ACQUI" 7128 KEY 6, "MEMO" 7129 KEY 7, "VITESS" 7130 KEY 8, "RETOUR" 7131 KEY 9, "øc/hr " 7132 KEY 10, "STOP" 7140 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(3) GOSUB ON KEY(4) GOSUB ON KEY(5) GOSUB ON KEY(6) GOSUB ON KEY(7) GOSUB ON KEY(8) GOSUB ON KEY(9) GOSUB ON KEY(10) GOSUB kmax = 9: GOSUB 250: KEY(10) ON: on des keys 7180 RETURN touche de retour 7200 IF endcy = 1 THEN PRINT "Demande ill gale ": RETURN 7205 CLS 7210 GOSUB 120: RETURN touche MEGOHM 7220 GOSUB 200: LOCATE 9, 30: PRINT "ATTENTE du Xon": mes$ = "MGO": GOSUB CLS : GOSUB GOTO GOSUB 200: off des keys 7260 KEY 1, "CYCLE" 7270 KEY 2, "ARRET" 7280 KEY 8, "RETOUR" 7290 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(8) GOSUB kmax = 2: GOSUB 250: KEY(8) ON: on des keys 7330 RETURN cycle de mesure en megohm Sefelec 87

89 7340 CLS : LOCATE 5: PRINT " D part du cycle de test en megohmmetre" 7342 t3 = 1: GOSUB 600mes$ = "NOD": GOSUB 300: t3 = 1: GOSUB PRINT : PRINT "Si vous voulez modifier les param tres du test revenir a la touche CODE" 7350 PRINT "ATTENTION ce program utilise le timer du M1500P" 7352 PRINT "Entrer le temps de test (001->999)"; 7355 INPUT tim$: IF LEN(tim$) = 0 THEN IF LEN(tim$) <> 3 THEN mes$ = "TMA" + tim$: GOSUB num = 1: endcy = GOSUB 8300: test de la boucle de securite 7365 LOCATE 11: PRINT " Cycle num ro :"; num: PRINT 7380 fin = mes$ = "MES,TES": MESRET = 0: GOSUB 300: GOSUB 320 mes$ = "MES": GOSUB LOCATE 13: PRINT " Attente de la fin de la mesure..." 7391 t3 =.1: GOSUB 600: mes$ = "TES": MESRET = 0: GOSUB GOSUB PRINT "Valeur de la tension:"; (VAL(MID$(val$, 4, 10))); " Volts " 7395 IF fin = 0 THEN GOTO t3 =.1: GOSUB 600: mes$ = "ISO": MESRET = 0: GOSUB 300: GOSUB PRINT "Valeur r sistance disolement:"; (VAL(MID$(val$, 4, 10)) / !); " Mohms " 7410 t3 =.1: GOSUB 600: mes$ = "DCH": GOSUB 300: LOCATE 17: PRINT "Fin de la mesure": t3 =.5: GOSUB t3 =.1: GOSUB 600 PRINT " XONREC="; XONREC: t3 =.2: GOSUB IF endcy = 0 THEN num = num + 1: GOTO mes$ = "TMA000": GOSUB mes$ = "DIS": GOSUB 300: t3 = 1: GOSUB GOSUB 7250: RETURN touche PICO 7520 GOSUB 200: LOCATE 9, 30: PRINT "ATTENTE du Xon": mes$ = "PIC": GOSUB CLS : GOSUB GOTO GOSUB 200: off des keys 7560 KEY 1, "CYCLE" 7570 KEY 2, "ARRET" 7580 KEY 8, "RETOUR" 7590 ON KEY(1) GOSUB ON KEY(2) GOSUB ON KEY(8) GOSUB kmax = 2: GOSUB 250: KEY(8) ON: on des keys 7630 RETURN cycle de mesure en pico 7640 CLS : LOCATE 5: PRINT " D part du cycle de test en picoamp rem tre" 7642 t3 = 1: GOSUB 600 mes$ = "NOD": GOSUB 300: t3 = 1: GOSUB PRINT : PRINT "Si vous voulez modifier les param tres du test revenir a la touche CODE" 7650 PRINT "ATTENTION ce program utilise le timer du M1500P" 7652 PRINT "Entrer le temps de test (001->999)"; 7655 INPUT tim$: IF LEN(tim$) = 0 THEN IF LEN(tim$) <> 3 THEN mes$ = "TMA" + tim$: GOSUB num = 1: endcy = GOSUB 8300: test de la boucle de securite 7665 LOCATE 11: PRINT " Cycle num ro :"; num: PRINT 7680 fin = mes$ = "MES,TES": MESRET = 0: GOSUB 300: GOSUB LOCATE 13: PRINT " Attente de la fin de la mesure..." 7691 mes$ = "TES": MESRET = 0: GOSUB 300: GOSUB PRINT "Valeur de la tension:"; (VAL(MID$(val$, 4, 10))); " Volts " 7695 IF fin = 0 THEN GOTO t3 =.1: GOSUB 600: mes$ = "COU": MESRET = 0: GOSUB 300: GOSUB PRINT "Valeur du courant:"; (VAL(MID$(val$, 4, 10))); " amp res " 7710 t3 =.1: GOSUB 600: mes$ = "DCH": GOSUB 300: PRINT "Fin de la mesure" 7712 t3 =.1: GOSUB IF endcy = 0 THEN num = num + 1: GOTO mes$ = "TMA000": GOSUB mes$ = "DIS": GOSUB 300: t3 = 1: GOSUB GOSUB 7550: RETURN demande darret du cycle 7900 endcy = LOCATE 20: PRINT "Demande darret prise en compte" 7920 RETURN touche de status 8000 fin = 0: num = PRINT "Appuyer sur F8 pour sortir" 8004 GOSUB 8100: touche f t2 = TIMER 8010 mes$ = "STA": MESRET = 0: GOSUB 300: GOSUB elapse = TIMER - t LOCATE num = num PRINT "Status de lappareil:"; val$; " retour no:"; num; " temps IEEE:"; elapse 8040 IF fin = 0 THEN CLS : GOSUB RETURN 8100 GOSUB KEY 8, "RETOUR" 8120 ON KEY(8) GOSUB KEY(8) ON 8132 RETURN 8140 fin = 1: RETURN test de la boucle de s curit Sefelec 88

90 8300 mes$ = "STA": MESRET = 0: GOSUB 300: GOSUB IF (VAL(MID$(val$, 4, 2)) AND 1) = 0 THEN LOCATE 10, 10: PRINT "Boucle de s curit ouverte!!!" 8325 GOTO LOCATE 10, 10: PRINT "Boucle de s curit ferm e!!!" 8340 RETURN decodage du status byte pour SRQ 8400 IF stp% = 212 THEN fin = 0: PRINT "Boucle de s curit ferm e!!! "; 8410 IF stp% = 211 THEN break = IF stp% = 208 THEN endcy = 0: CLS : LOCATE 10, 10: PRINT "Boucle de s curit ouverte!!! "; 8420 IF stp% = 213 THEN rise = IF stp% = 112 THEN PRINT "Demande ill gale en DCH " 8430 IF stp% = 192 THEN ready = IF stp% = 194 THEN ready = IF stp% = 193 THEN ready = RETURN Relecture des m moires de stockages 8500 mes$ = "DTP": MESRET = 0: GOSUB 300: GOSUB nbrmax = VAL(MID$(val$, 2, 3)) 8520 IF nbrmax = 0 GOTO mes$ = "DTR001." + MID$(val$, 2, 3): PRINT mes$: MESRET = 0: GOSUB tm0 = TIMER 8530 FOR i = 1 TO nbrmax 8540 GOSUB PRINT i; val$ 8560 NEXT 8562 tm1 = TIMER: PRINT "Temps de relecture:"; tm1 - tm PRINT "Temps moyen par valeur :"; (tm1 - tm0) / nbrmax 8570 RETURN 8900 PRINT "Pas de valeur en m moire!!!!!!" 8910 RETURN Speed measurement in Megohm: NOD: NO Display,the new code to cancel the display during the measure CLS 9008 mes$ = "MGO,SOH+0.000E+06,TMA000": GOSUB GOSUB 9400: tim0 = TIMER 9010 fin = 0: i = i = i tim1 = TIMER 9040 mes$ = "MES": GOSUB t3 =.1: GOSUB mes$ = "ISO": MESRET = 0: GOSUB 300: GOSUB sign$ = MID$(val$, 4, 1): <:the value is lower than the displayed resistance >:the value is higher than the displayed resistance +:the value is the measured resistance 9050 resi = VAL(MID$(val$, 5, 10)) 9060 IF resi >= (VAL(lim$) * !) THEN resul$ = " G O O D " 9070 IF resi < (VAL(lim$) * !) THEN resul$ = " B A D!" 9080 tim2 = TIMER - tim IF i = 100 THEN PRINT "Time for 100 measures:"; TIMER - tim PRINT i, sign$; resi; "ohms", resul$ 9102 mes$ = "DCH": GOSUB t3=0.1:gosub 600 : 100 ms=minimum discharge time 9110 IF fin = 0 THEN PRINT "End of test!!" 9114 PRINT "Total time ="; TIMER - tim0; " seconds for:"; i; " points" 9116 PRINT "Average time ="; (TIMER - tim0) / i; " seconds" 9120 RETURN 9300 fin = RETURN Test parameters input: to increase the speed,the unit must work with the locked ranges mode.look on line 9044 to get the info for under or over range. To find the right range: 9400 CLS 9410 PRINT "Test voltage ("; volt$; "):"; 9420 INPUT rep$ 9430 IF LEN(rep$) = 0 THEN rep$ = volt$ ELSE volt$ = rep$ 9440 ten% = VAL(rep$): GOSUB PRINT "Insulation resistance limit ("; lim$; ") Mohm:"; 9460 INPUT rep$ 9470 IF LEN(rep$) = 0 THEN rep$ = lim$ ELSE lim$ = rep$ 9472 IF LEN(rep$) = 0 THEN gam$ = "GM00" ELSE GOTO GOTO gami = ten% / (VAL(rep$) * !) 9490 PRINT gami 9500 IF gami >.002 THEN gam$ = "GM01" ELSE GOTO GOTO IF gami >.0002 THEN gam$ = "GM02" ELSE GOTO GOTO IF gami > THEN gam$ = "GM03" ELSE GOTO GOTO IF gami > THEN gam$ = "GM04" ELSE GOTO GOTO IF gami > THEN gam$ = "GM05" ELSE GOTO GOTO IF gami > 2E-08 THEN gam$ = "GM06" ELSE GOTO GOTO IF gami > 2E-09 THEN gam$ = "GM07" ELSE GOTO GOTO IF gami > 2E-10 THEN gam$ = "GM08" ELSE GOTO GOTO 9600 Sefelec 89

91 9560 IF gami > 2E-11 THEN gam$ = "GM09" ELSE gam$ = "GM10" 9600 PRINT gam$ 9610 mes$ = gam$: GOSUB RETURN Speed measurement in Megohm: NOD: NO Display,the new code to cancel the display during the measure. Sans passage en decharge 9700 CLS 9708 mes$ = "MGO,SOH+0.000E+06,TMA000,VIR,NOD": GOSUB GOSUB 9400: tim0 = TIMER 9710 fin = 0: i = i = i tim1 = TIMER 9740 mes$ = "MES": GOSUB mes$ = "ISO": MESRET = 0: GOSUB 300: GOSUB sign$ = MID$(val$, 4, 1): <:the value is lower than the displayed resistance >:the value is higher than the displayed resistance +:the value is the measured resistance 9750 resi = VAL(MID$(val$, 5, 10)) 9760 IF resi >= (VAL(lim$) * !) THEN resul$ = " G O O D " 9770 IF resi < (VAL(lim$) * !) THEN resul$ = " B A D!" 9780 tim2 = TIMER - tim IF i = 100 THEN PRINT "Time for 100 measures:"; TIMER - tim PRINT i, sign$; resi; "ohms", resul$ 9810 IF fin = 0 THEN PRINT "End of test!!" 9814 PRINT "Total time ="; TIMER - tim0; " seconds for:"; i; " points" 9816 PRINT "Average time ="; (TIMER - tim0) / i; " seconds" 9817 mes$ = "DCH": GOSUB RETURN Check of the voltage rising CLS mes$ = "MGO": GOSUB PRINT "Test voltage ("; volt$; "):"; INPUT rep$ IF LEN(rep$) = 0 THEN rep$ = volt$ ELSE volt$ = rep$ ten% = VAL(rep$): GOSUB 400: sending the voltage FOR i = 1 TO mes$ = "MES": GOSUB 300: going in to mmeasurement t1 = TIMER mes$ = "TES": MESRET = 0: GOSUB 300: GOSUB 320: reading the voltage te1% = VAL(RIGHT$(val$, 10)) PRINT te1% t2 = TIMER: measuring test time mes$ = "DCH": GOSUB 300: discharge PRINT "Temps : "; t2 - t NEXT i RETURN relecture de øc et %HR CLS : fin = 0: PRINT "Appuyer sur F10 pour arr ter" mes$ = "NOD": GOSUB 300: t3 = 1: GOSUB mes$ = "OPT110,MGO,MES": GOSUB mes$ = "TCF": MESRET = 0: GOSUB 300: GOSUB PRINT val$ mes$ = "HUM": MESRET = 0: GOSUB 300: GOSUB PRINT val$ IF fin = 0 THEN mes$ = "DCH": GOSUB mes$ = "DIS": GOSUB 300: t3 = 1: GOSUB PRINT "Fin de test": RETURN Sefelec 90

92 Eaton is dedicated to ensuring that reliable, efficient and safe power is available when it s needed most. With unparalleled knowledge of electrical power managment across industries, experts at eaton deliver customized, integrated solutions to solve our customers most critical challenges. Our focus is on delivering the right solution for application. But, decision makers demand more than just innovative products. They turn to eaton for an unwavering commitment to personal support that makes customer success a top priority. For move information, visit To contact a Sefelec salesperson or local distributor, please visit Eaton Sefelec sas 19 rue des Campanules F Lognes France Siège social +33 (0) Agence Sud Est +33 (0) Agence Sud Ouest +33 (0) Service Après Vente +33 (0) Fax +33 (0) Export Sales +33 (0) Export Fax +33 (0) Export Service +33 (0) Eaton Sefelec GmbH Bachstrasse 6 D Ottersweier Deutschland Service-Abteilung +49 (0) Fax +49 (0) Eaton Semelec sas (Our Calibration Division) 11 avenue de l Atlantique - Les Ulis F Courtaboeuf Cedex France Siège social +33 (0) Fax +33 (0) Eaton Industries Manufacturing GmbH Electrical Sector EMEA Route de la Longeraie Morges, Switzerland Eaton.eu Changes to the products, to the information contained in this document, and to prices are reserved; so are errors and omissions. Only order confirmations and technical documentation by Eaton is binding. Photos and pictures also do not warrant a specific layout or functionality. Their use in whatever form is subject to prior approval by Eaton. The same applies to Trademarks (especially Eaton, Moeller, and Cutler-Hammer). The Terms and Conditions of Eaton apply, as referenced on Eaton Internet pages and Eaton order confirmations Eaton - Sefelec sas All Rights Reserved Printed in France Eaton is a registered trademark. All trademarks are property of their respective owners.