Ex p Control unit
APEX
py
Maintenance and care
Rev. 0
01-37A2-7D0006_py_Manual_Exp-Control-Unit_20210923_a_en.docx
Page 85 of 96
Visual inspection
Perform a visual inspection monthly by:
Checking the enclosure, cable entries and cables for damage.
Checking the screwed connections for tight fit.
Checking the error memory for content.
Cleaning
No solvents should be used to clean the control unit as these can impair the
properties on contact with the seals.
Regular maintenance
Depending on the purity of purging air used, the inlet and outlet of the control
unit must be checked regularly for impurities (e.g. oil, dust, etc.) or corrosion.
In the case of anomalies, the operator should weigh up the possibility of a timely
and proper cleaning by BARTEC GmbH against a spontaneous failure of the
control unit.
Furthermore, the function of the overall system should be checked. The correct
sequence of the purging phase and of the operating phase should be checked.
Repairs
Repairs to the control unit and accessories may only be made by BARTEC GmbH.
Faults and troubleshooting
ATTENTION
AN ALTERED OPERATING BEHAVIOUR CAN BE AN INDICATION OF ALREADY
EXISTING DAMAGE TO THE CONTROL UNIT.
Only put the Ex p system back into operation after the cause of a
fault has been rectified.
It is assumed that all external electrical and mechanical equipment have been
properly connected. Therefore, the correct installation and connection of the
electrical devices should be checked first.
