Rockwell Automation 1734sc-IE4CH E+H Instruments via HART to PlantPAx User Manual - Manual (Page 144)

144 Rockwell Automation Publication PROCES-UM002A-EN-P - July 2014
Appendix L iTEMP TMT182 Temperature Transmitter
Signals from Instrument to Control System
Connect an iTEMP TMT182
Temperature Transmitter Use a 2-wire connection to the HART input module.
Signal Details
Output Signal Analog 4...20mA, 20...4mA
Load Max. (VPower supply - 11.5 V) / 0.022 A (current output)
Switch on Delay 4 s (during power up la - 3.8 mA)
Galvanic Isolation U = 2 kV AC (input/output)
Signal on Alarm • Underranging:
Linear drop to 3.8 mA
• Overranging:
Linear rise to 20.5 mA
• Sensor break; sensor short-circuit (not for thermocouples TC):
3.6 mA or 21.0 mA
Failure signal 21.0 mA; if output setting is 21.0 mA,
>
21.5 mA is guaranteed
Allowable Ripple Uss
≤
3 V at Ub
≥
13 V, fmax. = 1 kHz