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Wiring
Device condition and specifications
Has the device been mounted in accordance with specifications?
Is the device free of damage?
4
Wiring
CAUTION
!
‣
Switch off power supply before installing or connecting the device.
‣
When installing Ex-approved devices, please take special note of the instructions and
connection schematics in the supplementary Ex documentation.
‣
Do not occupy the display connection. An incorrect connection can destroy the electronics.
A Phillips head screwdriver is required to wire the head transmitter with screw terminals. A
flat-bladed screwdriver must be used for the version with spring terminals.
For wiring a mounted head transmitter, proceed as follows:
1.
Open the cable gland and the housing cover on the terminal head or the field housing.
2.
Feed the cables through the opening in the cable gland.
3.
Connect the cables as shown in Fig. 5. If the head transmitter is fitted with spring
terminals, please pay particular attention to → Page 33.
4.
Retighten the cable gland and close the housing cover.
5.
In order to avoid connection errors, prior to commissioning always follow the instructions
given in the section on the post-connection check (→ Page 36).
4.1
Quick wiring guide
Terminal assignment
Sensor input 2
RTD,
TC, mV
Fig. 5: Wiring the head transmitter
32
Sensor input 1
:
3- and 2-wire
RTD,
red
(black)
red
(black)
TC, mV
white
(yellow)
Dual-input temperature transmitter
Notes
→ ä 28
Visual check
:
4-, 3- and 2-wire
red
7
red
6
5
4
white
white
3
Display connection
Bus connection
and supply voltage
7
6
1
+
5
1
+
2
-
4
-
2
3
A0015015-EN
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