WIKA S-11 Manual De Instrucciones página 19

6. Commissioning, operation
6.2 Electrical mounting
The instrument must be earthed via the process connection.
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For instruments with voltage output, use shielded cable, and, if the cables are longer than 30 m or
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they leave the building, earth the shield at least at one end of the cable.
In North America, use the instrument in line with "class 2 circuits" or "class 2 power units" in accord-
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ance with CEC (Canadian Electrical Code) or NEC (National Electrical Code).
Select a cable diameter that matches the cable gland of the plug. Make sure that the cable gland of
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the mounted plug has a tight fit and that the seals are present and undamaged. Tighten the threaded
connection and check that the seal is correctly seated, in order to ensure a tight seal.
For cable outlets, make sure that no moisture enters at the cable end.
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Connection diagrams
Angular connector DIN 175301-803 A
2-wire
U 1
+
U - 2
S -
+
Wire cross-section max. 1.5 mm
Cable diameter 6 ... 8 mm
Circular connector M12 x 1 (4-pin)
2-wire
U 1
+
U 3
-
S -
+
WIKA operating instructions pressure transmitter, model S-11
3-wire
1
2
3
2
3-wire
1
3
4
Cable outlet, unshielded
2-wire
U brown
+
U - green
S -
+
Wire cross-section 3 x 0.5 mm
Cable diameter 6.8 mm
Cable lengths 1.5 m, 3 m, 5 m, 10 m, 15 m
3-wire
brown
green
white
2
19
GB