6. Commissioning, operation
The correct torque depends on the dimensions of the process
■
connection and the sealing used (form/material).
When screwing in, do not cross the threads.
■
For information on tapped holes and welding sockets, see Technical
■
Information IN 00.14 at www.wika.com.
The instrument must be earthed via the process connection.
■
Attach the connector and screw it in hand-tight.
■
Seal
Correct sealing of the process connections with parallel threads at the sealing
face
must be made using suitable flat gaskets, sealing rings or WIKA profile
sealings. The sealing of tapered threads (e.g. NPT threads) is made by provid-
ing the thread with additional sealing material such as, for example, PTFE tape
(EN 837-2).
For further information on sealings see WIKA data sheet AC 09.08 or under www.wika.com.
Connection diagrams
Circular connector M12 x 1, 4-pin
Assignment
U+
U-
S+
1
3
2
WIKA operating instructions temperature switch model TSD-30
SP1
SP2
4
2
Circular connector M12 x 1, 5-pin
Assignment
U+
U-
S+
1
3
5
GB
SP1
SP2
4
2
15