December 2019
154
Installation, Operation and Maintenance Manual
VCIOM-08500-EN
Appendix
Appendix
D.7.5
Installation in Environments with Explosive Dusts
Special attention must be paid to the following points:
•
Before assembly, joint surfaces must be greased with Aeroshell grease.
•
The cable glands must at a minimum possess a protection degree of IP66 or IP68
(15 m depth / 90 hours) according to IEC/EN 60529 standard.
•
Periodically measure the quantity of dust deposited on the surface of the
actuator body. Clean the dust if it accumulates to more than 5mm high (relative
to the actuator body).
D.8
Maintenance
WARNING
Installation, configuration, commissioning, maintenance, and repairs must be performed
by approved and qualified personnel only.
D.8.1
Periodic Inspection
•
Inspect the general condition of the ICON3000 and the possible optional
additional extension at regular intervals. The recommended frequency of
inspection is once every two years but this frequency could change depending
on the installation and working conditions. Any crack on the surface, broken
windows, or loose bolts must be reported for repair.
•
Keep the external surfaces of the unit clean: if the unit is installed in a dusty
environment, the specification stated in IEC/EN 60079-14 is to be followed
(ensuring in particular that the dust layer does not exceed 5 mm).
•
If the actuator is covered by an intumescent coating ("Kmass"), an electrostatic
charge risk is present; only anti-static cloth may be used when cleaning is
required. When performing maintenance, avoid rubbing actions against the
actuator (or any other friction-inducing action) that could electrostatically
charge the unit.
•
Check the condition of cable connections and mounting bolts; any loose
connection must be tightened.
D.8.2
Disassembly and Re-assembly
CAUTION
Using a fastener other than the approved type may result in damage to the actuator or
valve. Refer to Table 7.
