Installation, Operation and Maintenance Manual
MAN-10-04-100-0711-EN Rev. 0
October 2020
25
Installation
Section 4: Installation
!
WARNING
Do not electrically operate the Keystone EPI2 when the electrical enclosures are removed.
Do not open the actuator covers when an explosive atmosphere may be present.
Ignoring the above precautions could cause personal injury.
NOTE
Each time the covers are opened or removed the condition of the seals must be checked.
In case the seals are replaced, original spares must be supplied by Emerson.
NOTE
Keystone EPI2 electric actuators must be installed and maintained according to the
applicable rules regarding the electrical installation in hazardous areas (other than
mines) classied as zone 21 and/or 22 (dust) according to EN 60079-10 (hazardous area
classication). Example: installation and maintenance according to EN 50281-1-2.
Special attention is requested to the following:
• Before the assembly the joint surfaces must be greased with silicone oil or equivalent
• Cable glands must have minimum protection degree IP66/68 (EN 60529)
• Periodically verify the quantity of dust deposited on the enclosure and clean it if
more than 5 mm using a damp cloth to avoid static electricity
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