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Electrical installation
The entire electrical installation shall be in accordance with International Standard IEC 79-14 for
electrical equipment to be installed in hazardous areas.
Make sure that all power to the instrument is switched off before opening
Failure to do so may cause danger to persons or damage the equipment.
All covers of the 854 ATG must be closed before switching on the power.
Figure 5
Blocking / sealing facilities
Before opening the electronic and terminal compartment cover, remove the optional
blocking devices which locks the covers:
terminal compartment cover;
Do not damage the thread of the covers and instrument and keep the thread free of dirt.
When closing, never tighten the covers before the threads are properly engaged.
The covers should be turned counter-clockwise until the thread
After closing the covers, do not forget to place the blocking devices.
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Installation guide 854 ATG
the cover of the electronic and terminal compartment.
After opening, grease it lightly with anti seize grease.
then turn clockwise until the covers are fully closed.
Warning
Caution
>
=
A
: for electronic compartment cover and
>
=
B
: for drum compartment cover.
Caution
Electrical installation
A
@
clicks
in place,
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