16
WIKA operating instructions pressure transmitter, model SA-11
EN
12142425.02 06/2021 EN/DE/FR/ES
6. Commissioning, operation
6.2 Electrical mounting
■
The instrument must be grounded via the process connection.
■
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.
■
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.
Pin assignment
Angular connector DIN 175301-803 A
2-wire
3-wire
U+
1
1
U-
2
2
S+
-
3
Circular connector M12 x 1 (4-pin)
2-wire
3-wire
U+
1
1
U-
3
3
S+
-
4
Field case
2-wire
3-wire
U+
1
1
U-
2
2
S+
3
3
Cable outlet
2-wire
3-wire
U+
Brown (BN)
Brown (BN)
U-
Green (GN)
Green (GN)
S+
-
White (WH)
