26
February 2020
Installation and Maintenance Instructions
MAN-02-04-99-0712-EN Rev. 1
Installation
Section 4: Installation
4.13 Safety Instructions for Installation in
Hazardous Areas
4.13.1 Instructions for Explosion-Proof Enclosures
NOTICE
Certain nameplates may carry more than one approval, and each approval may have
unique installation/wiring requirements and/or conditions of “safe use”, installation, and
maintenance. These special instructions are in addition to and may override the standard
installation procedures. Special instructions are listed by approval type.
NOTICE
The SCE300 electric actuator must be installed and maintained according to the applicable
rules regarding electrical installation in hazardous areas (other than mines) classied as zone
1 and/or 2 (gas) and zone 21 and/or 22 (dust) according to EN 60079-10 (hazardous area
classication). For example: EN 60079-14 (electrical installation), EN 60079-17 (maintenance).
During the dismantling and subsequent reassembling of the explosion-proof enclosures
(covers, cable glands, joints), take care to maintain these enclosures as close as possible
to their original condition to maintain their integrity. In particular, ensure that the joint
surfaces of all enclosures are spread with a lm of recommended grease.
Proceed as follows:
• Do not damage the explosion-proof mating surfaces on the housing and on the
electrical enclosure covers
• Reinstall all the screws associated with the dismantled parts, and coat them with
a thread sealant after coating them with a lm of copper- or molybdenum-based
grease. This will prevent the screws from sticking and facilitate their removal when
maintenance is required
• Check that the bolts and screws are of the same dimensions and at least equal
quality as those originally installed (as stated on the nameplate)
• Replace any weather-proof seal, gaskets and o-rings that may have been removed
CAUTION
Using fasteners other than the approved type may result in damage to the actuator or valve.
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