8 – Routine maintenance
OxyDetect Oxygen Deficiency Gas Detector
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05311001B / Revision 4
Figure 39 - The relay override state screen
When a relay is energised, the N/C-Common contacts will be open, and the
N/O-Common contacts will be closed. The converse is true when the relay is
de-energised.
3.
Scroll to the relay override screen (0).
4. Select the 'Yes' option, then press the
soft key. The relay outputs will now
be set to the selected override state, and you can use your control/monitoring
equipment (connected to the analyser) to monitor the relay signal outputs.
Figure 40 - The relay override action screen
The relay signal outputs freeze at the selected override signal state as long
as the 'Override action' screen is displayed. As soon as another screen is
displayed, the relay signal outputs will be updated to reflect the corresponding
alarm, fault and range states.
8.4
Cleaning the instrument
When necessary, use a damp (but not wet) cloth to wipe clean the outer surfaces of
the instrument (to prevent the entry of dust or other particulates into the interior of the
instrument).
8.5
Preventative maintenance
To minimise unscheduled instrument downtime, ensure the proper operation of the
instrument and to comply with the guidelines of applicable regulatory bodies, we
recommend that you utilise the SERVOSURE annual preventative maintenance
program for your instrument.
The preventative maintenance program consists of a yearly inspection of the
instrument, and repair of any faults, to ensure that the instrument meets its original
