- IP 55 or flame proof versions available.
- Local indication 31/2 digit LCD available.
- High accurancy, very low temp, drift.
- Built - in cold junction Compensation & three wire lead resistance compensation.
- CMRS certified explosion proof housing for Gr. II A, II B, II C.
- Upscale / down scale for open sensor.
- ON line easy calibration by Zero & Span.
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GENERAL DESCRIPTION
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Analogik 2 Wire 4W temp, transmitters accepts Pt -100 input & thermocouples & gives 4 to 20mA output proportional and linear to input signal. Direct sensor connections are eliminated, due to which long run cable for pt -100 & T/C are avoided gives economical solution. The rack mounted, G - rail, field mounting as well as pipe mounting versions are available. The flame proof version with CMRS certification for II A, B, C & E are available.In the head mounted 2W temp transmitter the sensor is attached at the bottom.
FEATURES
| Three wire lead resistance compensation & built - in cold junction compensation |
| High accuracy typically 0.2% of F.S. |
| Drift free performance. |
| Rack mounted, field mounted, Head mounted, 2" pipe mounted, G rail versions available. |
| On - line calibration in case of flame proof version. |
CONSTRUCTION & OPERATION
The glass epoxy, green masked, high quality components soldered PCB provides the drift free & reliable performance Low level signal mV from T/C & resistance of RTD are converted into voltage & fed to V to I converter. This further converts the signal into 4 to 20mA DC signal proportional to input. The highly stable current source & accurate reference is used to give good results. Up Scale or Down scale facilities are provided for sensor break protection.
APPLICATIONS
To avoid the signal loss & to avoid the expensive cables of the sensors the 2W - 4W transmitters is the best solution.This is used as an isolation between field operations & central room is large, the Analogik 2W - 4W transmitters is the best, economical solution