Endress+Hauser RIA141 Bedienungsanleitung Seite 45

Terminal
+ Measuring signal (+) 4 to 20 mA
- Measuring signal (-) 4 to 20 mA
1 Terminal for further instrumentation
2 Digital limit switch (collector)
3 Digital limit switch (emitter)
5.2 Electrical connection
Both the terminal assignment and the connection values of the field indicator correspond to those
of the Ex-version. The device is only designed for operation in a 4 - 20 mA measuring circuit. There
must be potential equalisation along the circuits (within and outside the hazardous area).
5.2.1 Connecting the active power source
e.g. transmitter with own power supply and active current output:
Fig. 7: Connecting the active power source
5.2.2 Connecting the passive power source
e.g. transmitter with additional transmitter power supply:
Fig. 8: Connecting the passive power source
Terminal assignment
Wiring
Input and output
Signal input
Signal input
Support terminal
Switch output
Switch output
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