External Termination Resistor


An External Termination Resistor (ETR) is used when a Temperature Monitoring Module (TMM) channel is configured for a 4-20mA process variable input type. The resistor’s function is to convert the proportional loop current into a TMM-compatible voltage. The ETR is supplied as an assembly suitable for mounting on a 35mm DIN rail and consists of a 68Ω resistor and an appropriate Weidmuller component holder that facilitates ease of wiring.

Part Number: 100543

Reference documents
1078950  Rack Connection Module and External Power Supplies 
1079330  MPS Operation & Maintenance (ENG)
1077785  MPS System Overview 


NOTE: The termination resistor is only required for TMM channels configured for process variable inputs. UMM channels configured for process variable inputs have the necessary internal circuitry to directly accept 4-20mA inputs and do not require this external termination resistor.