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Instruction and Safety Manual - SMART S
ENGLISH
41
7
MAINTENANCE
Only qualified personnel can install gas detectors, as described in IEC 60079-17 standard.
7.1
Preventive maintenance routines
Bump testing and calibration procedures of gas detectors are required by
strict regulations and detailed in the IEC 60079-29-2.
This standard gives guidance on the selection, installation, use and
maintenance of gas detectors intended for use in industrial and
commercial applications therefore the User have to read the procedure
described in IEC 60079-29-2 for reference.
The standard requires calibration and bump testing as well as recording of the performed
checks and it defines that all gas detectors should undergo periodical operational testing
according to the manufacturer’s specifications. Test results should be recor
ded into a
suitable book to be shown to the Local Jurisdiction Authority in case of inspection,
according the IEC 60079-17.
7.2
Corrective maintenance routines
For any anomaly found during the functional test, please check the tests performance as
described in paragraph 4.
If during the preventive maintenance routine, the detector does not react to the gas it has
been calibrated for, please return the instrument to your supplier that on his turn will
return it to the manufacturer for repair.
It is possible to adjust the calibration parameters by employing the calibration keypad
available on request.
7.2.1 Note on the IP rating (optional)
This paragraph is applicable only with STGD/AD2 or STGD/AD3 accessories.
Please note that the IP rating indicated on the instrument label (in case of
use of the STGD/AD2 or STGD/AD3 accessory) does not imply that the
equipment will detect gas during and after exposure to those conditions.
If exposed to the conditions representative of the IP rating, the equipment
should be checked and recalibrated with a higher frequency and in case of
damage of the IP protection cap, it must be replaced.
The Goretex filter of the IP protection cap, should by no means be touched
by bare hands as this may alter the protection and the response in gas.
