Ampcontrol Gasguard 65-6551-CH4 Series, Руководство пользователя

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Ampcontrol Pty Ltd
– ABN 28 000 915 542
GASGUARD CH4 GAS SENSOR USER MANUAL
GSB076 Version 6
– March/2019
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 19 of 25
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6.2 Equipment Maintenance
WARNING!
The Gasguard CH4 Sensor has no user-serviceable parts.
All repairs must be carried out by Ampcontrol only .
If a fault develops, return the Gasguard CH4 Sensor to Ampcontrol for
repair. It is essential that no attempt be made to repair the Gasguard
CH4 Sensor as any attempt to dismantle or repair the Gasguard CH4
Sensor can seriously compromise the safety of the unit and voids
product warranty .
6.2.1 Periodic Maintenance
Periodic maintenance involves scheduled checks to ensure the instrument remains operating safely
and performs within its specification. The following maintenance schedule is recommended.
Specific site schedules may exist to perform visual, close and detailed inspections of equipment. These
will include checks for both basic mechanical integrity and electrical/performance checks. The schedule
given below is the manufacturer’s recommendations.
Table 3:
Manufacturer’s Periodic Maintenance Recommendation
Time Frame Maintenance
Daily
Verify operation by visually checking the reading on the respective
control unit/monitor. Investigate any abnormal deviations from Zero
reading.
Clean any dirt from display window to maintain a clear view of readings.
This should be done carefully to avoid scratching the window and
rendering the display unreadable.
Monthly
Check the Zero reading in fresh air or by applying nitrogen/clean air.
Readjust as necessary.
Check the Span calibration with a known concentration of methane.
Readjust as necessary.
As Required
Replace the catalytic gas sensor whenever it becomes impossible to
adjust to Zero, or when the Span adjustment is insufficient to enable
adjustment to the calibration gas value. If this occurs, recalibrate the unit
as described in Section 5 Commissioning and Calibration.
Following Power
Removal
If power has been removed from the unit for a long period of time, a re-
commissioning check should be carried out.