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Checklist Central Unit YES NO
Is the central unit mounted in a way that makes it easy to read?
Is the “What to do” sign mounted next to the central unit and is it easily readable?
Is the “What to do” sign mounted in a permanent way?
Is the phone number of the service provider, which is responsible if there is a O2
alarm, written on the “What to do” sign?
Is the green diode ON?
Is the yellow diode (Error) ON?
Is the red diode (Alarm/Alert) ON?
Is any error message displayed? if yes, what is it: …………………….………………….………….
13.3 O2 Values displayed on the Central Unit
When the system is running properly, the O2 level measured by each sensor is displayed in % (actual
value). The values are displayed on the second line of the display. The first character displayed is the
sensor ID and the value is displayed after.
Checklist O2 Values Value in %
Sensor 1
Sensor 2
Sensor 3
Sensor 4
13.4 Mk9 O2 Sensor check
Each sensor should be mounted at breathing height, between
150-180 cm/5-6 feet from the floor. The warning lamp should
be mounted so that it can easily be seen by the restaurant
personnel without entering the zone at risk. Under normal
conditions the O2 value displayed should read between 20-21%.
150-
180 cm
/5-6 ft
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