Connection. Composition

Transcription

1 Converters Connection e. g. t1 nput EEx ia C 1channel nput EEx ia C 24 V DC supply voltage Current output: /4 m... 2 m (optional voltage output) ccuracy ±.1 % User can use D switch to adjust: emperature measuring range, measuring sensor, 2, 3 or 4wire connection, lead breakage monitoring Output: /4 m... 2 m (adjustable) Discontinued type Function he converter is designed for the connection of temperature sensors, which corresponds to D 4376 (198) or BS 194: 1981 (EC 751). he following models may be connected: t5 D t1 D t5 D t1 D i1 D i12 D i1 D D1 JS C RC1 recision Resistor Co. nc F13 D Mo1 D Ohm... 4 Composition /D Microprocessor D/ 4wire 3wire 2wire 4 m... 2 m/ m... 2 m Range Upscale/downscale ype Output (4 m... 2 m) ower supply ower Rail + Safe area Hazardous area he is designed for 2, 3 or 4wire connection. n a 2wire connection, the lead resistance can be detected and compensated. he produces a constant measurement current and measures the resulting voltage across the temperature sensor. he voltage signal is amplified and conditioned to produce a m... 2 m or 4 m... 2 m output signal which is directly proportional to the temperature. he input is galvanically isolated from the output and the power supply. 1

2 Supply Connection ower Rail or terminals 23+, 24 Rated voltage Ripple ower consumption nput Connection Lead monitoring Output V DC within the supply tolerance approx. 1,2 W terminals 1, 2, 3; 7, 8, 9 designed for the connection of a resistance temperature sensor in 2, 3 or 4wire technology according to BS194: 1981 (EC 751) or D 4376 (e. g. t1) breakage: upscale or downscale (selectable) Connection terminals 16, 17+, 18 Current / m ; load 1 kohm Voltage... 2 V ; 3 kω load at error < 1 % ransfer characteristics Deviation fter calibration nfluence of ambient temperature Linearisation nfluence of supply voltage Measuring current Rise time Electrical isolation nput/output nput/power supply Output/power supply Directive conformity Electromagnetic compatibility at 293 K (2 C) resistance input: ±.1 % Ohm temperature sensor: ±.1 % of measurement value in K +.7 % of span + linearisation error (±.15 % of measuring value in K +.5 % of span) / K 2 and 3wire: <.1 K, <.15 K 4wire: <.1 K.1 % of span Directive 89/336/EC E 5812, E 5822 Conformity nsulation coordination E 5178 Electrical isolation E 5178 rotection degree EC 6529 mbient conditions mbient temperature C ( K) Mechanical specifications rotection degree 2 Mass approx. 15 g Dimensions Data for application in conjunction with hazardous areas ECype Examination Certificate Group, category, type of protection Voltage U 9,6 V DC Current 22,3 m ower 41 mw approx. 2 m in 5 Ohm ; approx..2 m in 5 Ohm and 1 kohm ms, dependent on temperature measurement probe used basic insulation acc. to E 5178, rated insulation voltage of 5 V C 4 x 17 x 115 mm (1.6 x 4.2 x 4.5 in) BSEEF o. Ex 91C243, for additional certificates see [EEx ia] C ( amb = 6 C) ype of protection [EEx ia] Explosion group B C External capacitance 27,2 µf 1,2 µf 3,4 µf External inductance 512 mh 192 mh 64 mh Electrical isolation nput/output nput/power supply Directive conformity Directive 94/9 EC E 514, E 52 Entity parameter Certification number 4Z65.X FM control drawing o Suitable for installation in division 2 yes Connection terminals 1, 2, 3; 7, 8, 9 nput Current t 19 m Voltage V t 8,9 V 2

3 Explosion group &B C&E D, F&G Max. external capacitance C a 5,5 µf 15,16 µf 4,42 µf Max. external inductance L a 91,83 mh 322,9 mh 86,8 mh Safety parameter CS control drawing LR Control drawing o Connection terminals 1, 2, 3, 7, 8, 9 nput Voltage V OC 8,9 V Current SC 19 m Explosion group &B C&E D, F&G Max. external capacitance C a 5,1 µf 15,5 µf 41 µf Max. external inductance L a 93 mh 329 mh 823 mh Supplementary information ECype Examination Certificate, Statement of Conformity, Declaration of Conformity and instructions have to be observed. For information see ccessories ower Rail R3 ower Rail UR3 ower feed module KFD2EB2... ower supply of the devices is only permissible via the power feed modules KFD2EB... Via the ower Rail R3 or UR3 the devices are supplied with 24 V DC by means of the power feed modules. Each power feed module is used for fusing and monitoring groups with up to 1 individual devices. he ower Rail R3 is an inset component for the D rail. he ower Rail UR3 is a complete unit consisting of the electrical inset and an aluminium profile rail 35 mm x 15 mm x 2 mm. o make electrical contact, the devices are simply engaged. he ower Rail must not be fed via the device terminals of the individual devices! f no ower Rails are used, power supply of the individual devices is realised directly via their device terminals. otes rocedure using 2wire mode: 1. Connect the according to the connection diagram for the 2wire mode. lease make sure that the connections 7 and 8 or 1 and 2 are made. 2. Set the two D switches on the right side to 2wire mode (OFF O). 3. fter 5 seconds you can set the right D switch to OFF (equalisation). 4. Short circuit the RD (as near as possible at the RD) and keep it short circuited at least for 5 seconds. 5. Release the short circuit and set the right D switch to position O (2wire mode). he converter has now stored the lead resistor and keeps it also after switch off of the supply voltage. f the output is set to m... 2 m, the normal converter operation starts immediately. f the converter is set to 4 m... 2 m, the output takes a value between 1m and 3.5 m over a duration of approx. 3 seconds. his value is proportional to the stored lead resistor between Ohm and 1 Ohm. his value is a clue to the correct execution of the adjustment process. fter expiration of these 3 s the normal converter operation starts again. f the converter does not measure a resistance during the adjustment process, that is less than 1 Ohm (i. e. no short circuit or short circuit with insufficient duration), the converter interprets this adjustment to be faulty and does not store the corresponding value. his way, no faulty value is taken for the lead resistor in case of an operating error (i. e. aberrant manipulation of the adjustment switch). his case is indicated, when the output provides a square wave signal over a duration of approx. 1 minute. ote: When lead breakage occurs the current output always lowers to m, regardless whether m... 2 m or 4 m... 2 m has been set. f the switches are adjusted in a way that the starting point and the span deliver the maximum temperature, the output rises to the end value (2 m for the standard version). 3

4 djustment example: part of a housing side piece O for upscaling the output in case of lead breakage OFF for downscaling the output in case of lead breakage Starting point Span OFF OFF for adjustment OFF O for 2 wires O OFF for 3 wires O O for 4 wires O (1) ype OFF () djustment example ype t1 (1) Starting point 2 C (1) Range 15 C (1) 3wire O OFF Burnout downscaling Output 4 m... 2 m O for 4 m... 2 m OFF for m... 2 m Characteristics during adjustment Example Starting point C, Range 2 C, t1 at 15 C, 2 Ohm lead resistance Upscale Output current m undetermined 2 m downscale at m... 2 m Output Converter mode 3 ± 6.25 seconds 1.5 m for 2 Ohm lead at 4 m... 2 m output 16 m Resistance Ohm Ohm 5 seconds 1593 Ohm 2 Ohm Switch 4 m... 2 m 2wire mode Short circuit current at the sensor djustment mode Short circuit eliminated 2wire mode O (1) OFF () ormal mode 4

5 djustment table O = 1 OFF = t1 t1 t1 t5 t5 t5 t1 t1 t1 t5 Switch position L O S Maximum Units C C C C C C C C C C

6 djustment table O = 1 OFF = t5 t5 D1 i12 i1 RC1 i1 i1 Ohms F13 Mo1 Switch position L O S Maximum Units C C C C C C C Ohm C C