Commissioning, Operation; Mechanical Mounting - WIKA HP-2 Manual De Instrucciones

6. Commissioning, operation

6. Commissioning, operation
CAUTION!
Prior to commissioning, the pressure sensor must be subjected to a visual
inspection.
Only use the pressure sensor if it is in perfect condition with respect to
safety.
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.
For the installation point, the valid values for
tightening torque and maximum pressure
should be taken from the high-pressure pipe
supplier's documentation.
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.
6.2 Electrical mounting
The instrument must be grounded via the process connection.
■
Use the pressure sensor with shielded cable, and ground the shield on at least one
■
end of the lead, if the lines are longer than 30 m (3- or 4-wire) or leave the building.
Select a cable diameter that matches the cable gland of the plug. Make sure that
■
the cable gland of the mounted plug has a tight fit and that the seals are present and
undamaged. Tighten the threaded connection and check that the seal is correctly
seated, in order to ensure the ingress protection.
For cable outlets, make sure that no moisture enters at the cable end.
■
Observe the specifications in accordance with chapter 3 "Specifications".
■
WIKA operating instructions pressure sensor, model HP-2
Open-ended spanner
(spanner width 27)
Spanner flats
EN
11