WIKA P-30 Mode D'emploi page 15

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
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before mounting. During installation, ensure that the diaphragm is not
damaged.
During mounting, make sure that the sealing faces at the pressure
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transmitter and the measuring point are clean and undamaged.
Only ever screw in, or unscrew, the instrument via the spanner flats. Never
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use the case as a working surface.
The correct torque depends on the dimensions of the process connection
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and the sealing used (form/material).
When screwing in, avoid any jamming of the threads.
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For information on tapped holes and welding sockets, see Technical Information IN 00.14 at
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www.wika.com.
Types of sealing
Parallel threads
per EN 837
1
WIKA operating instructions precision pressure transmitter model P-3x
per DIN 3852-E
1
Tapered threads
NPT, R and PT
EN
max. 10 Nm
15