Wiring
Loop-powered display unit
14
Only certified devices (optionally available) may be connected in the hazardous area
‣
Observe corresponding notes and wiring diagrams in the Ex-specific supplement to
these Operating Instructions. Your supplier is available for assistance if required.
NOTICE
SELV / Class 2 device
‣
The device may only be powered by a power unit with an energy-limited circuit in
accordance with IEC 61010-1: 'SELV or Class 2 circuit'.
Device destroyed if current too high
‣
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
A0020848
6
Operation of the spring terminals
1. When using rigid cable with ferrule, just plug the cable into the terminal. No
tools required. With flexible wire the spring mechanism of the terminal must be
operated 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)
