Electrical Connection - WIKA E-10 Betriebsanleitung

7. Starting, operation
When mounting the instrument, ensure that the sealing faces of the instrument and

the measuring point are clean and undamaged.
Screw in or unscrew the instrument only via the flats using a suitable tool and the

prescribed torque. The appropriate torque depends on the dimension of the pressure
connection and on the sealing element used (form/material). Do not use the case as
working surface for screwing in or unscrewing the instrument.
When screwing the transmitter in, ensure that the threads are not jammed.

Do not torque the process controller with a force greater than 36,9 foot pounds

(50 Nm).
For tapped holes and welding sockets please see Technical Information IN 00.14 for

download at www.wika.de -Service
Protect the diaphragm against any contact with abrasive substances and

pressure peaks and do not touch it with tools. If you damage the diaphragm,
no intrinsic safety can be guaranteed (ATEX)!
Warning
Ensure that the pressure transmitter is mounted in a shielded section and

protect it against shocks.
Do not use the pressure transmitter out of the temperature range from

-40 ... +105 °C / -40 ... +221 °F. Out of this range there is no explosion
protection ensured.
Observe the permissible surface temperature applicable for this range according to the

defined temperature classes.
Install the transmitter using the appropriate mating process connection away from exces-

sive heat permissible temperature and vibration whenever possible.
Do not exceed the nominal pressure range for a prolonged period of time, because this

can lead to an inadmissible heating of the case.

Electrical connection

Always connect the case to earth to protect the pressure transmitter against
!
electromagnetic fields and electrostatic charges.
Warning
8
WIKA Operating instructions/Betriebsanleitung E-10, E-11
GB