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6. Commissioning, operation
6.2 Electrical mounting
The instrument must be grounded via the process connection.
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For instruments with voltage output, use shielded cable, and ground the shield on at least one end of the lead, if the
■
lines are longer than 30 m or leave the building.
EN
In North America, use the instrument in line with "class 2 circuits" or "class 2 power units" in accordance with CEC
■
(Canadian Electrical Code) or NEC (National Electrical Code).
Select a cable diameter that matches the cable bushing of the connector. Make sure that the cable gland of 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 the ingress protection.
For cable outlets, make sure that no moisture enters at the cable end.
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Pin assignment
Angular connector DIN 175301-803 A
Circular connector M12 x 1 (4-pin)
16
2-wire
3-wire
U+
1
1
U-
2
2
S+
-
3
2-wire
3-wire
U+
1
1
U-
3
3
S+
-
4
Field case
Cable outlet
WIKA operating instructions pressure transmitter, model SA-11
2-wire
3-wire
U+
1
1
U-
2
2
S+
3
3
2-wire
3-wire
U+
Brown (BN)
Brown (BN)
U-
Green (GN)
Green (GN)
S+
-
White (WH)
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