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To ensure that performing maintenance on the device is safe, keep the following points in mind:
•
Power down the device when you are making electrical connections, when you intend to perform
maintenance on it, or in the event of malfunction.
•
Make sure that all equipment is properly grounded.
•
Never perform maintenance on the device alone.
10.2
Maintenance and inspection interval
The recommended inspection and maintenance intervals depend on the operating conditions. The
amount of dust and other possible substances in the measurement air affect how often the sensor must
be inspected and cleaned.
During the first two weeks after installation, it is recommended to perform daily and weekly inspection
and maintenance on the device.
Interval
Content
Daily
•
Visually inspect the outer parts of the device, its accessories,
and cables. Make sure that there is no obvious visible
damage.
•
Make sure that the fan is rotating freely.
•
Check that the measurement results are within the expected
range.
Weekly
•
Make sure that the device lid, cable glands and cables are
tightly secured.
•
Remove the front cover of the device and clean the probe
using compressed air and a cloth. If necessary, use a soft
brush.
•
Remove the rear cover of the device and clean the fan using
compressed air. If necessary, use a soft brush.
After the first two weeks, if there is no noticeable dust build-up on the sensor probe and the probe is
easy to clean, the maintenance interval can be increased step-by-step.
In non-critical applications it is the responsibility of the plant operator to decide what is
the appropriate maintenance interval.
WARNING!
In critical installations, for example in applications that are related to worker health or
functioning of an explosion prevention system, the recommended maintenance and
inspection interval is one week.
If you notice that the device is not operating normally, contact the manufacturer or an authorized
distributor. Make sure that an industry specialist inspects and approves the device for use in the