WIKA OT-1 - Manual (Page 10)

10 WIKA operating instructions OEM pressure transmitter, model OT-1
2127027.02 09/2013 GB/D/F/E
GB
6. Commissioning, operation
Correct sealing of the process connections with parallel
threads at the sealing face  must be made using suita-
ble flat gaskets, sealing rings or WIKA profile sealings.
For sealing process connections with tapered threads,
the sealing must be made in the threads using additional
sealing material, e.g. PTFE tape (EN 837-2).
6.1 Mechanical mounting
■ The sealing faces at the instrument have to be undamaged and clean.
■ When screwing the instrument in, the force required to do this must not be
applied through the case, but only through the spanner flats provided for this
purpose, and using a suitable tool.
■ 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.
Sealing the process connection
For further information on seals see WIKA data sheet AC 09.08 or at www.wika.com.
Spanner flats
per EN 837 per DIN 3852-E NPT, R and PT
Parallel threads Tapered threads

