WIKA D-11-7 - Manual (Page 12)

12 WIKA operating instructions pressure transmitter model D-1x-7
2478159.05 12/2011 GB/D/F/E
GB
6. Commissioning, operation
6. Commissioning, operation
CAUTION!
Prior to commissioning, the pressure transmitter must be subjected to a visual inspection.
■ Check the diaphragm for any visible damage, since this is a safety-relevant component.
■ Leaking fluid is indicative of damage.
■ Only use the pressure transmitter if it is in perfect condition with respect to safety.
6.1 Making the mechanical connection
Required tool: Open-ended spanner (spanner width 27 or 41), screwdriver
■ Remove the protection cap not until shortly before installation. During
installation, ensure that the diaphragm is not damaged (with model
D-11-7).
■ The sealing faces at the instrument have to be undamaged and clean.
■ 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 pressure connec-
tion and the gasket 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.