Digital MultiMeter - Make your job efficiency User Instruction Manual

Transcription

1 Digital MultiMeter - Make your job efficiency User Instruction Manual Main Fields of Application: Process industries, Metallurgy, Power generation, Research, Laboratories, Maintenance, After sales service, Education and so on. It is suit for all fields. User Programmable Functions

2 INSTRUCTION MANUAL REVISION HISTORY Version Change Summary Date Author 1.0 Created 2007/3/09 LT 1.1 Drawing updated 2007/9/5 LT Safety information 2007/9/27 LT 2. AC current accuracy Overload alerting for voltage 2. Refresh hold 3. Burden voltage for 999.9mA 2008/1/29 LT Copyright Statement Copyright 2007 Larry Tsai. All rights reserved. No part of this publication may be reproduced in any form or by any manner or used to make any derivative such as translation, transformation, or adaptation without our authorization and permission. All the Trademarks belong to their respective proprietors. User Programmable Functions II Copyright 2007 LT. All rights reserved.

3 Contents SAFETY INFORMATION...1 DIGITIAL MULTIMETER...3 INTRODUCTION...3 GETTING START WITH YOUR METER...4 Display Illustration...4 Rotary Switch...5 INPUT and OUTPUT TERMINALS...6 PUSH-BUTTON OPERATIONS...7 INPUT OPERATIONS...7 SETUP MODE...9 How to enter setup mode...9 Factory Default...10 Echo...11 Print only...11 Percentage (%) scale for 4-20mA or 0-20mA measuring...12 Minimum Frequency measuring...13 Beep Frequency...14 Data Hold/Refresh Hold...15 Auto Power Saving...16 Backlit Display...17 Return to Factory Default...18 SPECIAL FUNCTIONS...19 DYNAMIC RECORDING...19 DATA/ TRIGGER HOLD...21 REFRESH HOLD...22 RELATIVE (ZERO)...23 OVERLAOD ALERT FOR VOLTAGE MEASUREMENT...23 REMOTE COMMUNICATION...24 HOW TO OPERATE...27 AC VOLTAGE MEASUREMENT...27 DC VOLTAGE MEASUREMENT...28 DIODE CHECK...29 RESISTANCE MEASUREMENT...30 CAPACITANCE MEASUREMENT...31 AC CURRENT MEASUREMENT...32 DC CURRENT MEASUREMENT...33 % Scale of ma MEASUREMENT...34 SPECIFICATIONS...35 General Specification...35 ELECTRICAL SPECIFICATIONS...37 MAINTENANCE...39 SERVICE...39 CLEANING...39 BATTERY REPLACEMENT...40 FUSE REPLACEMENT III -

4 SAFETY INFORMATION This meter is a hand-held, battery-operated instrument for testing and troubleshooting power electronic systems. If this device is damaged or something is missing, contact the purchasing place immediately. A WARNING identifies conditions and actions that may cause hazard(s) to the user; a CAUTION identifies conditions and actions that may damage this Device. Following Table-1 explain international electrical symbols used on this meter. Table- 1 International Electrical Symbols AC - Alternating Current DC - Direct Current AC and DC - Alternating and Direct Current Ground Double Insulation Caution, risk of danger. See Explanation In The Manual Caution, risk of electric shock. See Explanation In The Manual - 1 -

5 SAFETY INFORMATION Warnings and Cautions To avoid electric shock, injury, or damage to this instrument and ensure that you use the meter safely, follow the safety guidelines listed below: Read this operation manual completely before using this device and follow all safety instructions. This device is for indoor use, altitude up to 2,000 m. Avoid working alone. Be cautions when working above 70V DC or 33VRMS and 46.7V peak, such voltages may cause a shock hazard. Use this meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Never measure voltage when the current measurement is selected. Do not use this meter if it looks damaged. Inspect the leads for damaged insulation or exposed metal. Replace damaged leads. Disconnect the power and discharge all high-voltage capacitors before testing in the resistance, continuity, and diode function. Always keep your hands behind the protective guard of the probe as measuring. Select the proper function and disconnect the test leads from test points before changing functions. Always use specified battery. The meter is safety-certified in compliance with EN/IEC and EN/IEC Installation Category III 600V/ II 1000V Pollution Degree 2. In order to maintain its insulation properties, please be sure to use with the standard or compatible test probes

6 INTRODUCTION DIGITIAL MULTIMETER The meter is robust for industrial fields, and has DCV, ACV, DCA, ACA, OHM, Diode check, Audible continuity, Capacitor and % of 4~20mA tests. The test data can be transferred to PC through an optional full isolated optical interface without hazardous. This meter has a lot of functions can be used in HVAC, Power, Process fields, Electronic/Electrical system diagnostics and troubleshooting. It will be the best one of your need. See below main features: Main Features: DCV, ACV, DCA, ACA, OHM, Diode check, Audible continuity, Capacitor tests. The % scale readout for 4-20mA and 0-20mA measurement Min/Max/Average, Data Hold with Manual or Auto Trigger and Relative modes Bi-directional optic computer interface with SCPI commands Safe, precision and speed closed case calibration 10,000 count precision digital multi-meter and designed to meet EN/IEC CAT. III 600V/ CAT. II 1000V standard - 3 -

7 GETTING START WITH YOUR METER Display Illustration Alternating/ Direct Current Auto Power Saving Auto Range Data Hold (Manual Trigger) Relative Mode REC: Dynamic Recording Mode for MAX, MIN, MAX-MIN and AVG Diode Audible continuity Low Battery % for 0-20mA or 4-20mA Remote control Bar-graph display Measuring units +/ counts digital display Figure- 1 LCD Display - 4 -

8 Rotary Switch WARNING Be sure to remove the test leads from measuring source or target before changing rotary switch. To turn this device ON and select a function you want by turning the rotary switch. Table- 2 Function Position POSTION FUNCTION 1 OFF 2 / V 3 4 Ω 5 6 / µa 7 / ma 8 / A 9 OFF Figure- 2 Rotary Switch for selecting function - 5 -

9 INPUT and OUTPUT TERMINALS WARNING To avoid damaging this device, do not exceed the input limit. To avoid damaging the meter, do not exceed the input limit as below table: Table- 3 Input limit ROTARY SWITCH FUNCTION INPUT TERMINAL OVERLOAD PROTECTION AC/DC Voltage 1000 V R.M.S. Diode ( ) V.Ω. COM 600V R.M.S. Resistance (Ω) Capacitance AC/DC µa Fast-acting Fuse 1A/ µa ma COM AC/DC ma 700V AC/DC A A COM Fast-acting Fuse 10A/ 600V Figure- 3 Terminals - 6 -

10 PUSH-BUTTON OPERATIONS The operation of push-button is shown as below. When push the button, a related symbol will be lit, and the beeper will sound. Turning the rotary switch to another position will reset current operation of push buttons. INPUT OPERATIONS HOLD: Freeze existing measuring value. Press again to trigger next measuring value Press and hold for more than 1sec. to exit trigger hold. SHIFT: To shift and select functions MAX MIN: Press and hold for more than 1 sec to toggle Dynamic recording mode. Press this button momentarily to cycle through MAX, MIN, MAX-MIN, AVG and present (REC) readings at recording mode. REL: Set the value on the display to be subtracted. RANGE: Change measuring range. AUTO: Press and hold for more than 1 sec. to set Auto-range Figure- 4 Pushbuttons 1. SHIFT (BLUE): To shift or select Blue function Push this button momentarily to toggle DC and AC for Voltage and Current measurements. Press and hold this button for more than 1 sec. to toggle % of ma ON/ OFF as Current (ma) measurement. The % scale for 4-20mA or 0-20mA is proportional to DCmA measurement. The % scale is auto ranging display as follows: %(0-20 or 4-20) Always auto range 999.9% 100mA 9999% 1000mA DCmA (Bar-graph) Auto or manual range For Ohm test, push this button momentarily to toggle continuity and auto ranging Ohm test

11 2. HOLD: DATA HOLD (Trigger) or Refresh Data Hold (Auto trigger) Press this button momentarily to hold the existing displayed digital value and waiting for trigger. The sign of will be indicated. Press this button momentarily again to trigger another data hold. The sign of will be flashed before finished or updated measurement Press this button for more than one second to exit trigger mode. To select Refresh Hold by setup mode. The reading can be updated automatically when the reading is changed, and the beeper sounds a tone to remind user, simultaneously. 3. HOLD (MAX MIN): Dynamic Recording Record maximum, minimum, and calculates true average. Press this button for more than 1 second to toggle recording mode on or off at continuous mode (non data hold). Press this button momentarily to cycle through MAX, MIN, MAX-MIN, AVG and present (REC) readings. The beeper sounds when a new maximum or minimum value is recorded. 4. REL: Relative function The relative function shows the difference between the measured value and the stored value. Press to toggle Relative (REL) ON or OFF. 5. RANGE: In auto-range, press this button to select manual range and turn off the sign of AUTO. In manual range, press this button momentarily to step up 1 range at one time, press this button for more than 1 second to select auto-range. In auto-range, the AUTO is lit and the meter will select an appropriate range for resolution if a reading is greater than maximum available range, OL (overload) will be displayed on the display. The meter will select a lower range when reading is less than about 9% of full scale. The range button will be used to change measuring path of current as 4-20mA (0-20mA) % display

12 How to enter setup mode SETUP MODE Press and hold SHIFT button as turn the meter on to enter setup mode. These parameters will be remained in non-versatile memory even the meter is turned off. User can configure related parameters on setup mode by following procedures: 1. Press SETUP (SHIFT) button to select which menu item to be set. 2. Press (REC) or (REL) or button to change the parameter. 3. Push SAVE (RANGE) button momentarily to save your change. 4. Press and hold SAVE button for more than one second to exit setup mode. Figure- 5 Push buttons for Setup mode - 9 -

13 Factory Default Following table describes the outline of the setup menu item and indicates the factory settings. Menu item Table- 4 Descriptions for Outline of Setup Menu Item Factory Setting Echo OFF ON or OFF Print OFF ON or OFF Selectable Parameters % scale 4-20mA 4-20mA and 0-20mA for % scale readout Frequency 0.5Hz Set minimum measuring frequency, 0.5Hz, 1Hz, 2 Hz or 5Hz. Beep 2400 The driving frequency can be set for 2400, 1200, 600 or 300 Hz. OFF means to disable beep. Refresh Hold OFF OFF means Data Hold (Manual Trigger), set 100~1000 variation counts to enable refresh hold. Auto power off 15 Backlit 15 1~99 minutes, OFF means to disable auto power off. None available on this model. 1~99 seconds, 0FF means to disable turning off backlit automatically. DCAC dc Default AC or DC for voltage and current measurements. Default defa Set to default factory setting - 10-

14 Echo With ECHO ON, the meter echoes (returns) all the characters whatever it receives. To enable the Echo as follows: Figure- 6 Echo Setup Print only If the remote interface of the meter is under Print-only mode, the meter will print out the measured data when the measuring cycle is completed. The meter will auto send the newest data to a host continuously. The meter doesn t accept any commands from the host under Print-Only enabled. The remote indicator of the meter will be flashed during operation as Print-only ON. To enable the print-only as follows: Figure- 7 Print-only Setup - 11-

15 Percentage (%) scale for 4-20mA or 0-20mA measuring To set the DC current measuring display with % scale readout. Set 4-20mA or 0-20mA for proportional to 0%~100%. The 25% scale readout represents DC 8mA at 4-20mA, and DC 5mA at 0-20mA. To set % scale proportional as follows: Figure- 8 The % scale Setup for ma measuring - 12-

16 Minimum Frequency measuring To set minimum measurement frequency, will influence the measuring rate for frequency, duty cycle, and pulse width measurement. Normal, the measuring rate defined at general specification is based on the minimum frequency is 1 Hz. Figure- 9 Minimum Frequency Setup - 13-

17 Beep Frequency The driving frequency can be set for 2400, 1200, 600 or 300 Hz. The beeper can be set to OFF as you want kept silent during operation, to select a tone you like according to follows: Figure- 10 Driving frequency of Beeper setup - 14-

18 Data Hold/Refresh Hold Normal, factory default the hold mode to Data Hold (Manual Trigger by key/ BUS trigger by remote control). Set OFF for Data Hold (Manual Trigger), and set 100~1000 variation counts to enable Refresh Hold. The variation of measuring value exceed the setting of variation count, the refresh hold will be ready to trigger. To enable refresh hold as follows: Figure- 11 Data Hold/ Refresh Hold Setup - 15-

19 Auto Power Saving The timer for APS (Auto Power Saving) can be set to 1~99 minutes, OFF means to disable APS. To set timer of APS as follows: Figure- 12 Auto power off setup The instrument may automatic turn off within a setting period, if none of the following happens. a. Push buttons are used. b. Measurement function is changed. c. Dynamic recording is set. d. Auto power off has been disabled by Setup mode. You can push any button to wake up the meter or turn the rotary switch to the OFF position, then turn on again to activate the meter after auto power off. When the meter is to be used for long period, you may disable the APS. The sign "APS" will be turned off when APS disabled. The meter will stay on continuously as the APS is disabled, to shut off the meter by turning the rotary switch to the off position

20 Backlit Display The backlit is not applied to this model. The timer can be set to 1~99 seconds, 0FF means to disable turning off backlit automatically. The backlight will be turned off automatically after a setting period. To set the period as follows: Figure- 13 Backlit Timer Setup - 17-

21 Return to Factory Default This setup can help you to reset the options to factory default. The setup mode will be set to the menu of Echo automatically after reset: Figure- 14 Return to factory default - 18-

22 SPECIAL FUNCTIONS This meter provides operators with various functions as following description. DYNAMIC RECORDING The dynamic recording mode can be used to catch intermittent turn on or turn off surges, verify performance, measure while you are away, or take readings while you are operating the equipment under test and can t watch the meter. The average reading is useful for smoothing out unstable or changing inputs, estimating the percentage of time a circuit is operated, or verifying circuit performance. The operational procedures are described below: 1. Press "REC" for more than 1 second to enter the dynamic recording at continuous mode (non data hold or trigger mode). The present value is stored to memories of maximum, minimum and average, also the REC sign will be lit. 2. Press this button for more than 1 second to exit recording mode. 3. Press this button momentarily to cycle through maximum, minimum, maximum-minimum, average and present readings as recording mode enabled. The MAX, MIN, MAX-MIN, AVG or REC sign will be lit respectively to indicate which value is being displayed. See following Figure. 4. The beeper sounds when a new maximum or minimum value is recorded. 5. If an overload is recorded the averaging function will stop. The average value becomes "OL "(overload). 6. The auto power saving feature will be disabled and the "APS" will be turned off at recording mode. 7. Selecting dynamic recording in auto range, it will record the value of MAX, MIN or AVG for different ranges. 8. The average value is the true average of all measured values taken since the recording mode was entered

23 Figure- 15 Display of Dynamic Recording - 20-

24 DATA/ TRIGGER HOLD Press HOLD button to freeze the displayed value, the sign of will be displayed. Push again to enter the manual trigger mode and the sign of will be flashed before the new updates. Press HOLD button for more than one second to exit this mode. Figure- 16 Trigger Hold - 21-

25 REFRESH HOLD You can use the setup mode to enable the Refresh Hold when you are working on a difficult measuring field. This function will auto trigger or update HOLD value with new measuring value, and sound a tone to remind user. The operation of push-button is same as the operations of Data hold. Press HOLD button to enter Refresh Hold mode. The present value will be held, and the sign of will be lit. It will be ready to hold new measuring value once the variation of measuring value exceed the setting of variation count, and the sign of will be flashed. The hold value will be updated until the measuring value is stable, then stop flash and light and sound a tone to remind user. Figure- 17 Refresh Hold For voltage and current measurements, the holding value will not be updated when the reading below the counts as following table: Function Counts DC Voltage, DC µa/ma < 100 AC Voltage, AC µa/ma < 500 DC 10A < 10 AC 10A < 50 For resistance and diode measurements, the holding value will not be updated if the reading at OL or open state. The holding value may not be updated once the reading can t reach stable state for all measurements

26 RELATIVE (ZERO) The relative function subtracts a stored value from the present measurement and displays the result. 1. Press REL button momentarily to set the relative mode. This sets the display to zero and stores the displayed reading as a reference value and the sign of REL will be displayed. 2. The relative mode can be set at auto or manual range, but can't be set when an overload has occurred. 3. Press this button again to exit the relative mode. Figure- 18 Relative (Zero) Operation OVERLAOD ALERT FOR VOLTAGE MEASUREMENT WARNING For your safety, please be aware of the alert. Don t be nervous and just remove the test leads from measuring source. This meter provides an overload alert for voltage measurement during auto-ranging mode or manual range can recognize 610V. The beeper sounds tones periodically once the measuring voltage is exceeded alerting voltage of 610.0V. For your safety, please be aware of this alert

27 REMOTE COMMUNICATION This instrument has a bi-directional (full duplex) communication capability. This function will assist user to record and keep data easily. The protocol is provided by SCPI commands (Standard Commands for Programmable Instruments). You can simply use your familiar program language to design what application software you want. All commands are combined by ASCII character, non-hexadecimal, which is much user friendly providing. Just configure the measuring range, and then get the measuring value. The detail SCPI for remote operation is accompanied with another file on this CD-ROM. Please refer to. An optional accessory includes an optical USB-RS232 cable and a CD-ROM for PC application software. The baud rate is selected by remote control. It can be set to 4800, 9600 or Hz. After set the baud rate, the host should change itself baud rate. Please refer to related parameters as follows: Item Parameter Default Baud rate 4800, 9600, Parity None, Odd, Even None Data Bit 8, 7 bits 8 Stop bit 1 1 Please refer following procedures if you want to communicate with personal computer: 1. Setup the communication parameters for the meter and the personal computer you used. The meter is default to (9600, n, 8, 1). 2. Be sure that the driver for USB and RS-232 transfer has been installed on your computer. 3. Move the meter out of holster, and then put the communication jack on inside holster. Put the meter back into the holster. 4. Fix optical side of cable to communication jack of meter, be sure the text side to be face up. 5. Plug the other end of USB terminal of cable into USB port of personal computer. See following Figure

28 Figure- 19 Cable Connection for Communication 6. Execute the software to take the data as your needs

29 7. Always press second snap slightly to remove the cable from communication jack of the meter. See the snap as below picture. Always press second snap slightly to remove the cable from communication jack of the meter. 8. We don t suggest you to remove the cover of USB-RS-232 cable. But sometime, you may press snap deeply and pull the cable to cause the cover to be moved out as following picture. To assemble the cover as contrary direction you moved out. Be sure the text side on the cover at same side of inside TOP case. You will hear a click as the cover has been fixed To assemble the cover as contrary direction you moved out. Press the snap and pull the cable to move out the cover - 26-

30 HOW TO OPERATE AC VOLTAGE MEASUREMENT 1) Set the rotary switch to " / V ". 2) Connect the black test lead to "COM" terminal and red test lead to "V Ω " terminal. 3) Touch the probes to the test points and read the display. : PRESS 2 sec Figure- 20 AC VOLTAGE MEASUREMENT - 27-

31 DC VOLTAGE MEASUREMENT 1. Set the rotary switch to " / V ". 2. Push SHIFT button momentarily to set DC test. 3. Connect the black test lead to "COM" terminal and red test lead to "V Ω " terminal. 4. Touch the probes to the test points and read the display. : PRESS 2 sec Figure- 21 DC VOLTAGE MEASUREMENT - 28-

32 DIODE CHECK A good diode allows current to flow in one direction only. To test a diode, turn the power off, remove the diode from the circuit, and follow the steps: 1) Turn the rotary switch to the " " position. 2) Insert the black test lead in "COM" terminal and red test lead in "V Ω " terminal. 3) Connect the red lead to the positive side (anode) of the diode and the black lead to the negative side (cathode). The meter displays diode voltage to approximately 2.1 V. The typical voltage drop is 0.3 ~ 0.8V, and causes the meter sound a beep. 4) Reverse the connections and measure the voltage across the diode again. The diodes may give the indications as follow: Anode connect to Red +, Cathode connect to Black - Good Diode Defective Diode Reverse The connection 0.3V ~ 0.8V " OL " " OL " 0.3V ~ 0.8V "OL" "OL" " 1.1~2.1V " "OL" 0.3V ~ 0.8V 0.3V ~ 0.8V 0V 0V " OL " " 1.1~2.1V " : PRESS 2 sec Figure- 22 DIODE MEASUREMENT - 29-

33 RESISTANCE MEASUREMENT 1) Set the rotary switch to " Ω". 2) Connect the black test lead to "COM" terminal and red test lead to "V Ω " terminal. 3) Touch the probes to resistor and read the display. 4) Press SHIFT button momentarily to toggle CONTINUITY function ON/OFF. The continuity range is Ω. Momentarily pushing this button will only turn the beeper off. While testing continuity, the beeper will sound if the resistance falls below 10Ω. : PRESS 2 sec Figure- 23 RESISTANCE MEASUREMENT - 30-

34 CAPACITANCE MEASUREMENT 1) Set the rotary switch to " " position 2) Connect the red lead to " " terminal, and black lead in "COM" terminal. 3) Open test probes, then push REL button momentarily to zero the residual. 4) Remove the capacitor from circuit board or device. 5) Connect the test lead across the capacitor and read the display. CAUTION: Observe polarity when measuring the polarized capacitors. Discharge capacitor before measurement. : PRESS 2 sec Figure- 24 CAPACITANCE MEASUREMENT - 31-

35 AC CURRENT MEASUREMENT 1) Set the rotary switch to " / A ". 2) Connect the black test lead to "COM" terminal and red test lead to "A" terminal. 3) Touch the probes to the test points and read the display. 4) If the reading is lower than 1A, to get better resolution of display, please turn the rotary switch to ma or µa position and remove the red test lead to "µa ma" terminal. Be sure to remove test lead first before turning rotary switch. : PRESS 2 sec Figure- 25 AC CURRENT MEASUREMENT - 32-

36 DC CURRENT MEASUREMENT 1) Set the rotary switch to " / A ". 2) Push SHIFT button momentarily to set DC test. 3) Connect the black test lead to "COM" terminal and red test lead to "A" terminal. 4) Touch the probes to the test points and read the display. 5) If the reading is lower than 1A, to get better resolution of display, please turn the rotary switch to ma or µa position and remove the red test lead to "µa ma" terminal. Be sure to remove test lead first before turning rotary switch. : PRESS 2 sec Figure- 26 DC CURRENT MEASUREMENT - 33-

37 % Scale of ma MEASUREMENT 1) Set the rotary switch to " / ma ". 2) Push and hold SHIFT button for more than 1 second to set % of ma test. 3) Connect the black test lead to "COM" terminal and red test lead to "µa ma" terminal. 4) Touch the probes to the test points and read the display. Figure- 27 % Scale of ma DISPLAY - 34-

38 General Specification SPECIFICATIONS Display: The liquid crystal display (LCD) is 4 digits with maximum reading 9,999 counts. 41 segments analog bar graph and full annunciator Automatic polarity indication. Function: DCV, ACV, DCA, ACA, OHM, Diode check, Audible continuity and Capacitor. The % scale readout for 4-20mA and 0-20mA measurement Min/Max/Average, Data Hold with Manual or Auto Trigger and Relative modes Bi-directional optic computer interface with SCPI commands One-year calibration cycle suggested. Measuring rate (Approx.): Function Times/ second ACV 7 DCV (V or mv) 7 Ω 14 Diode 14 Capacitance 4 (< 100µF) DCA (µa, ma or A) 7 ACA (µa, ma or A) 7 Low battery indicator: The " " appears when the battery voltage drops below 6.2V (approx.). Operating temperature: 0 C to 40 C, 0-80 % R.H. Storage temperature: -20 C to 60 C, 0-80 % R.H. Relative Humidity (R.H.): maximum 80% R.H. for temperature up to 31 C decreasing linearly to 50% R.H. at 40 C Temperature coefficient: 0.15 (specified accuracy) / C (from 0 C to 18 C or 28 C to 40 C) NMRR (Normal Mode Rejection Ratio): This series has a NMRR specification of > 60 db at 50Hz and 60 Hz, which means a good ability to reject the effect of AC noise in DC measurement

39 CMRR (Common Mode Rejection Ratio): This series has a CMRR specifications of >60 db at DC to 60 Hz in the ACV function; and > 120 db at DC, 50 Hz and 60 Hz in the DCV function. Power supply: Single standard 9V Battery can use Alkaline or Carbon-zinc. Battery types ANSI/ NEDA IEC Alkaline 1604A 6LR61 Carbon-zinc 1604D 6F22 Power Consumption: 70mVA maximum Following table is current consumption at 9V approximately: Function Current Consumption at 9V Function ACV 7.2mA DCµA 5.5mA DCV 5.5mA ACµA 7.2mA Ω 6.3mA DCmA 5.5mA Diode 5.5mA ACmA 7.2mA Ω continuity 5.5mA DCA 5.5mA Current Consumption at 9V Capacitance 6.2mA ACA 7.2mA APS <20µA Battery life: 80 hours for DC voltage measurement (approx.) (Based on new alkaline 9V/545mA Battery) Dimension: 58 (H) * 83 (W) * 178 (L) mm. Weight: 400 grams with batteries included. Standard Accessories: Test leads (a pair), manual, battery, protective holster Optional Accessories: Carrying case and Communication package Safety: Designed in compliance with EN/ IEC and EN/IEC for CAT-III 600V/ CAT-II 1000V, Pollution Degree II Environment. EMC designed in compliance with EN

40 ELECTRICAL SPECIFICATIONS Accuracy is given as ±(% of reading + counts of least significant digit) at 23 C ± 5 C, with relative humidity Less than 80% R.H. DC Voltage Range Resolution Accuracy Input impedance 999.9mV 0.1mV 0.09% MΩ 9.999V 0.001V 0.09% MΩ 99.99V 0.01V 10.01MΩ 999.9V 0.1V 0.2% MΩ Input Impedance: 10MΩ (nominal). Overload Protection 1000V R.M.S. AC Voltage Range Resolution Accuracy 40~200Hz 200~500Hz 999.9mV 0.1mV 2.5%+5 No. SPEC 9.999V 0.001V 99.99V 0.01V 1.2%+5 1.5% V 0.1V Input Impedance: 10MΩ (nominal) in parallel with <100pF Overload Protection 1000V R.M.S. RESISTANCE Range Resolution Accuracy Test current Overload Protection 999.9Ω 0.1Ω 0.3% mA 600V 9.999kΩ 0.001kΩ 155µA R.M.S kΩ 0.01kΩ 15.5µA 999.9kΩ 0.1kΩ 1.55µA 9.999MΩ 0.001MΩ 0.8%+3 141nA 99.99MΩ 0.01MΩ 1.2% nA Notes: 1. Maximum open voltage: <+3.5V 2. Instant Continuity: Built-in buzzer sounds when resistance is less than 10.0Ω 3. The accuracy of 1000Ω and 10kΩ is specified after Relative function, which is used to substrate the test lead resistance and the thermal effect. 4. For the range of 100MΩ, the RH is specified for < 60%

41 DIODE CHECK/ AUDIBLE CONTINUITY TEST Range Resolution Accuracy Test Current Open Voltage Diode 0.1 mv 0.3% +2 Approx. 0.46mA <+3.5V DC Notes: 1. Overload protection: 600V R.M.S. 2. Built-in buzzer sounds when reading is below 50 mv approx. and single tone for normal forward-biased diode or semiconductor junction as 0.3V Reading 0.8V. CAPACITANCE Range Resolution Accuracy Overload Protection 9.999µF 0.001µF 2%+5 600V 99.99µF 0.01µF R.M.S µF 0.1µF 3.5% µF 1µF The accuracy is based on film capacitor or better and use Relative mode to zero residual value. DC CURRENT Range Resolution Accuracy Burden Voltage / Shunt 999.9µA 0.1µA 0.1% V (100Ω) 9999µA 1µA 0.1% V (100Ω) 99.99mA 0.01mA 0.2% V (1Ω) ma 0.1mA 0.2% V (1Ω) 999.9mA 0.1mA 0.5% V (1Ω) 10.00A 0.01A 0.5% V (0.01Ω) Overload Protection 1A/700V Fast Fuse 10A/ 600V Fast Fuse AC CURRENT Range Resolution Accuracy 40~500Hz 0.5~2k Hz *N µA 0.1µA 1.2% % V (100Ω) 9999µA 1µA 1.2% % V (100Ω) 99.99mA 0.01mA 1.2% % V (1Ω) ma 0.1mA 1.2% % V (1Ω) 999.9mA 0.1mA 1.2% % V (1Ω) 10.00A 0.01A 1.2% % +5 Burden Voltage Overload / Shunt Protection 1A/700V Fast Fuse 0.2V (0.01Ω) 10 A/ 600V Fast Fuse Notes: 1. For signal less than 5% range, additional 5 counts to specify accuracy

42 MAINTENANCE WARNING To avoid electrical shock, do not perform any service unless you are qualified to do so. To avoid electrical shock or damage to the meter, do not get water inside the case. Remove the test leads and any input signals before opening the case. SERVICE If the instrument fails to operate, check battery and test leads, replace them if necessary. If the instrument still does not work, double check operating procedure as described in this instruction manual. When servicing, use specified replacement parts only. Following table will guide you to identify basic problems: Malfunction No LCD indication as power ON by rotary switch No beeper tone Failed on current measuring Identification Check battery and charge or replace battery. Check setup mode whether the beeper has been set to OFF. Then select the driving frequency you want Check Fuse Failed on Remote control The optical side of cable connected to meter, the text side of cover should be up. Check the baud rate, parity, Data bit, Stop bit (default is 9600, n, 8, 1) Driver install for USB- RS232. CLEANING To clean the instrument, use a soft cloth dampened in a solution of mild detergent and water. Do not spray cleaner directly onto the instrument, since it may leak into the cabinet and cause damage. Do not use chemicals containing benzine, benzene, toluene, xylene, acetone or similar solvents

43 BATTERY REPLACEMENT The meter is powered by a single 9V battery. Replace with the specified battery if the low battery sign ( ) is displayed and flashes. Use the following procedures to replace the battery: 1. Using the rotary switch to turn the meter off, and remove the test leads from terminals. 2. Loosen 3 screws on bottom cover, pull up and move the cover. See following figure. 3. Replace the defective battery. 4. Reverse the procedure of opening cover to close the bottom cover. FUSE REPLACEMENT Referring to below figure, use the following procedure to replace the fuses of the meter: 1. Perform steps 1 to 2 of battery replacement procedure. 2. Remove the defective fuse by gently prying one end of the fuse loose and sliding the fuse out of the fuse bracket. 3. Install a new fuse of the same size and rating. Make sure the new fuse is centered in the fuse holder. 4. Then re-fasten the bottom cover

44 Figure- 28 BATTERY/FUSE REPLACEMENT - 41-