Commissioning, operation, Ex area, Connection examples 1 2 – WIKA DIH10-Ex Benutzerhandbuch
Seite 19
GB
1 2
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4 ... 20 mA
2
1
4 ... 20 mA
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2 3 4
1
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￣
+ (1)
- (2)
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4 ... 20 mA
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4 ... 20 mA
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L1 N
DIH10-Ex
Trans-
mitter
Trans-
mitter
WIKA operating instructions model DIH10-Ex
19
3330872.01 02/2014 GB/D
6.2 Model DIH10-Ex connection
The 4-pin terminal block for the connection of the current-loop display
is located on the rear of the display and is accessible once the case is
open.
Terminal 1: Positive terminal of the current loop
Terminal 2: Negative terminal of the current loop
Terminals 3 and 4 are connected together on the PCB and enable the
convenient connection of a transmitter built into the connection head.
Con-
trollers
Ex area
Transmitter
supply isolator
Maximum terminal voltage: DC 30 V
Maximum current: 100 mA
Voltage drop: 3.2 V
Maximum power: 1 W
Data
logger
Display
instrument
Connection examples
1 2
+ -
4 ... 20 mA
2
1
4 ... 20 mA
+
-
+
-
2 3 4
1
+
-
+
-
+
-
+ (1)
- (2)
4 ... 20 mA
+
4 ... 20 mA
+
+
-
-
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DIH10
Trans-
mitter
Trans-
mitter
Internal bridge
Power
supply
unit
Plug-in terminal strip
6. Commissioning, operation