Electrical Connection - WIKA IS-10 Mode D'emploi

7. Starting, operation
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
Observe the permissible surface temperature applicable for this range

according to the defined temperature classes.
 Observe the technical data for the use of the pressure transmitter in connec-
tion with aggressive / corrosive media and for the avoidance of mechanical
hazards.
Mounting to zone 0
(In general Zone 0 is given when the pressure transmitter is surrounded by a mixture of explo-
sive gases more than 1.000 hours per year = continuous hazard).
When mounting the pressure transmitter into areas which require category

1G equipment, ensure that ingress protection IP67 according to IEC 60 529
is guaranteed.
Warning

Electrical connection

Always connect the case to earth to protect the pressure transmitter against
!
electromagnetic fields and electrostatic charges.
Warning
 Ground the cable screen at one end, preferably in the safe, thus non-
Ex, area (EN 60079-14). For transmitters with flying leads, the screen is
connected to the case. The simultaneous connection of case and cable
Warning
screen to ground is only permitted if ground loop problems between the
screen connection (e.g. at the power supply) and case can be excluded (see
EN 60079-14).
Supply the pressure transmitter from an intrinsically safe current circuit (Ex ia).

Consider both the internal capacitance and inductance.

8 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-10, IS-11
GB
7. Starting, operation
Cover flying leads with fine wires by an end splice (cable preparation).

The bayonet-connector is made of light metal, a material which is not

permissible for group I applications (mining).
Warning
Consider that cables for use in zones 1 and 2 must be checked with a test

voltage between conductor/earth, conductor/screen, screen/earth of more
than 500V (AC).
 Operate the pressure transmitter with a shielded cable and earth the shield at least on
one side of the cable, if the cable is longer than 30m (2-wire), or if it is run outside of
the building.
 Ingress protection per IEC 60529 (The ingress protection classes specified only apply
while the pressure transmitter is connected with female connectors that provide the
corresponding ingress protection).
Ensure that the cable diameter you select fits to the cable gland of the connector

Ensure that the cable gland of the mounted connector is positioned correctly and
that the sealings are available and undamaged. Tighten the threaded connection and
check the correct position of the sealings in order to ensure the ingress protection.
Please make sure that the ends of cables with flying leads do not allow any ingress of

moisture.
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio IS-10, IS-11
GB
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