Wiring RIA15
16 Endress+Hauser
5.1 Quick wiring guide
Terminal Description
+ Positive connection, current measurement
- Negative connection, current measurement (without backlighting)
LED Negative connection, current measurement (with backlighting)
Auxiliary terminals (electrically connected internally)
Functional grounding:
• Panel-mounted device:
Terminal on the rear of the housing
• Field device:
Terminal in the housing
5.2 Connection in 4 to 20 mA mode
The following diagrams show how the process display unit is connected in 4 to 20 mA mode.
Connection without backlighting Connection with backlighting
Connection with transmitter power supply
and transmitter
A0017705
1 Transmitter power supply
Connection with transmitter power supply
and transmitter using the auxiliary terminal