4.1 Maintenance
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1370 – Guidelines for the Design, Construction and Testing of Fixed Hydrocarbon Gas Detection Systems – (22 June 2010) - Annex – Guidelines for the Design, Construction and Testing of Fixed Hydrocarbon Gas Detection Systems - 4 Maintenance and Calibration - 4.1 Maintenance

4.1 Maintenance

  4.1.1 The following onboard maintenance should be carried out monthly and after any fault condition:

  • .1 visual inspection;

  • .2 testing of audible and visual alarms; and

  • .3 zero and span calibrations as described in paragraph 4.2.

  4.1.2 Additional maintenance should be carried out as specified by the manufacturer’s instructions.

  4.1.3 The maintenance and testing described in paragraphs 4.1.1 and 4.1.2 should be included in the maintenance plans required by SOLAS regulations II-2/14.2.2and II-2/14.4.4.

  4.1.4 Computerized systems should have a self-test function to monitor the following on start-up and repeated at least once every 24 h:

  • .1 power supply; and

  • .2 volatile memory.


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