Installation and Commissioning
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Manual TRZ 04 · EN04 · February, 1st 2017
39
Danger
The encoder is approved for use in hazardous areas, the marking is
as follows:
II 2 G Ex ib IIC T6
Warning
Attention must be paid to the selection of cables to guarantee
that the
permitted limits, in accordance with EC-type Examination Certificate of the
explosion protected equipment, are not exceeded.
Danger
The Ex-signal circuit is to be laid in its own cable. For the installation of the
encoder, a shielded cable may only be used (for example LIYCY 2 x 0.75 mm
2
,
coat color blue).
The cable shield has to be grounded at both sides. The earthing of the cable
shield is on the non-explosion protected site. At the other cable end is the
shield on the isolated mounted metallic ENCO 08 – housing.
Compliance with the regulations of DIN EN60079-14 the ENCO 08 housing can
grounded also in explosive areas.
The meter body of turbine and rotary meter and the aluminum housing of ENCO
08-M have to be grounded.
The fixed installation of the intrinsically safe cables is absolutely required.
You may find the connector pin assignments in the appendix Connector pin assignments
on page 57.
