Operating instructions CWB-ATEX
120799 61 616 07 300 0
05/2021
Page 12 / 14
30046-005k
en
10 Maintenance, overhaul, repair
WARNING
Risk of electric shock or malfunctioning of the device due to unauthor-
ized work!
Non-compliance can result in severe injuries and material damage!
• All connections and wiring must be disconnected from the
power supply.
• Work performed on the device must only be carried out by appro-
priately authorized and qualified electricians.
10.1 Maintenance and overhaul
• Determine the type and extent of inspections in compliance with the relevant na-
tional regulations
• Adapt inspection intervals to the operating conditions
• Maintenance according to IEC 60079-17 and IEC 60079-19.
i
Observe the relevant national regulations in the country of use.
The following tests and measures must be carried out during regular maintenance:
• if the conductors are clamped properly,
• the enclosure components for formation of cracks and damage,
• the sealing for ageing and damage. (Replace enclosure components with defec-
tive sealing),
• Cleanliness inside and outside the device,
• the permissible ambient temperature
(acc. EN 60079),
• if the conductors are clamped properly,
• the cables for ageing and damage,
• its intended use,
• if the surface of the flameproof Ex-joint is damaged,
• if corrosion on the flameproof Ex-joint is present,
• if the safety screw M4 has been tightened firmly (Torque 1,3 Nm),
• if the external equipotential bonding conductor (as required) is still connected,
• if the mounting screws have been tightened firmly.
