Quick Wiring Guide - Endress+Hauser RIA15 Operating Instructions Manual

Wiring
12
Only certified devices (optionally available) may be connected in the hazardous area
‣
Observe the corresponding notes and wiring diagrams in the Ex-specific supplement to
these Operating Instructions.
NOTICE
Device destroyed if current too high
‣
The device must be powered only by a power unit with an energy-limited circuit in
accordance with UL/EN/IEC 61010-1, Section 9.4 and the requirements in Table 18.
‣
Do not operate the device at a voltage source without a current limiter. Instead, operate
the device only in the current loop with a transmitter.
• Panel housing:
The terminals are located on the rear of the housing.
• Field housing:
The terminals are located inside the housing. The device has two M16 cable entries. The
housing must be opened for wiring purposes.
Operation of the spring terminals
 4 Operation of the spring terminals
1. If using rigid cables or flexible cables with a ferrule, insert only the cable into the
terminal to connect. No tools required. If using flexible cables without ferrules, the
spring mechanism must be activated as shown in step 2.
2. In order to loosen the cable, push the spring mechanism in completely using a
screwdriver or other suitable tool and pull out the cable.
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
RIA15
A0020848
Endress+Hauser