WIKA P-31 - Manual (Page 15)

15 WIKA operating instructions precision pressure transmitter model P-3x
11473500.04 10/2011 GB/D/F/E
GB
6. Commissioning, operation
6.1 Making the mechanical connection
Required tool: Open-ended spanner (spanner width 27 or 41)
■ With flush process connections, remove the protection cap not until shortly
before mounting. During installation, ensure that the diaphragm is not
damaged.
■ During mounting, make sure that the sealing faces at the pressure
transmitter and the measuring point are clean and undamaged.
■ Only ever screw in, or unscrew, the instrument via the spanner flats. Never
use the case as a working surface.
■ The correct torque depends on the dimensions of the process connection
and the sealing used (form/material).
■ When screwing in, avoid any jamming of the threads.
■ For information on tapped holes and welding sockets, see Technical Information IN 00.14 at
www.wika.com.
Types of sealing
max. 10 Nm
Parallel threads Tapered threads
per EN 837 per DIN 3852-E NPT, R and PT
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