11116552.11 EN/DE/FR/ES 03/2022
16
WIKA operating instructions pressure transmitter, models E-10 and E-11
EN
5.3 Electrical mounting
WARNING!
Danger to life through improper mounting
If the pressure transmitter is not mounted properly, the explosion protection can no longer be ensured.
▶
Do not remove the cable connection.
▶
Use the electrical connection as originally supplied. It must not be bypassed or changed (except for
the cable length).
▶
Fine-stranded leads with bare ends must be finished with end splices (cable preparation)
■
Use and assemble connection cable that is suitable for the application.
■
Clamp the free cable end to a suitable certified clamp box or outside the hazardous area.
■
Use the pressure transmitter with shielded cable and ground the shield on at least one end of the lead, if the lines
are longer than 30 m or leave the building.
■
Ground the case via the process connection to protect the pressure transmitter against electromagnetic fields and
electrostatic discharge. Include the case in the equipotential bonding of the application.
For instruments with cable outlet, the shield is connected to the case. The simultaneous connection of the case and the
cable shield to ground is only permitted if any potential losses between the shield connection (e.g. at the power supply)
and the case can be excluded (see EN 60079-14).
Additional information for version E-1*-*-***-**-**DX**-** with protective cap
For installation with electrical conduit, the metal protective cap can be removed.
For installation without electrical conduit, the metal protective cap must not be removed.
Requirements for electrical connection
■
Ingress protection IP67 in accordance with IEC 60529 (protect drainage openings of the metal protective cap from
dirt to prevent water accumulation).
■
For cable outlets, make sure that no moisture enters at the cable end.
5. Commissioning, operation
