Part No: 4417341 Revision 10 Installation Manual 23
954 SmartServo FlexLine
5. ELECTRICAL INSTALLATION
General
The entire installation procedure must be carried out in accordance with national, local,
and company regulations. The entire electrical installation shall be carried out in
accordance with the national requirements for electrical equipment to be installed in
hazardous areas.
All wiring entries must be closed such that the approvals are not invalidated.
Use at least increased safety (Ex e) cable glands.
Ex d cable glands are allowed to be used as well.
For installations using conduits, each conduit must be sealed within 18 inches of the
enclosure.
Improper installation of cable glands, conduits or stopping plugs invalidates the Ex
approval of this device.
Make sure that the housing of the device is properly bonded to the Protective Earth
(PE).
WARNING!
Cables and cable glands for at least 105 °C (221 °F) shall be used. When the ambient
temperature is known to be always less than 50 °C (122 °F), cables and cable glands
for at least 90 °C (194 °F) can be used.
Grounding
WARNING!
Make sure the housing of the device is properly connected to the ground reference!
Make sure the electrical resistance of the ground connection is below the maximum
prescribed by local requirements!
WARNING!
The instrument may not be opened when an explosion atmosphere may be present.
Failure to do so may cause danger to persons or damage the equipment.
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