Howto top up the oxygen sensor water
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The oxygen, dry nitrogen and humidity sensors can be controlled from on
top of the detector behind the curtain wall. You need an access to get to
them but none of the detectors doors open. They are in rack 620D-13
which is on top of the detector on the west side.
Replacing the oxygen sensor water
Open the panel marked oxygen sensor in the above rack using a key or coin. Try and
determine the level of water in the black container (having a torch (aka flashlight) may help). If it is at or
near the minimum then top up with distilled water.
Page author: Wahid Bhimji
Last modified: Jan 17, 2003