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Reference Manual
00809-0100-2230, Rev CA
3.4
Electrical installation
3.4.1
Cable/conduit entries
The electronics housing has two ½ - 14 NPT entries (optional: adapters for two M20×1.5). Minifast and
Eurofast adapters are also available. The connections are made in accordance with local or plant
electrical codes.
Make sure that unused ports are properly sealed to prevent moisture or other contamination from
entering the electronics housing.
Note
Use a enclosed metal plug to seal the unused entry/entries. The plastic plugs mounted at delivery are not
sufficient as seal!
Note
A sealant of type PTFE tape shall be used to prevent dust and water ingress and to enable future removal
of the plug/gland.
3.4.2
Grounding
The housing should always be grounded in accordance with national and local electrical codes. Failure to
do so may impair the protection provided by the equipment. The most effective grounding method is
direct connection to earth ground with minimal impedance.
There is an external grounding screw located at the bottom of the housing and an internal grounding
screw located inside the housing, see
The internal ground screw is identified by a ground symbol:
Figure 3-2. Grounding screws
A. Internal ground.
B. External ground. Cable diameter minimum 4 mm
Note
When grounding the display via threaded conduit, make sure the connection provides sufficient low
impedance.
Installation
Figure
3-2.
A
2
.
.
B
Installation
July 2017
23
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