Sensors have very accurate locations, see the following locations defined for each sensor:
• long-life O
2
sensor must be in O
2
position
• CO-H
2
sensor must be in CO position
• NO or low scale NO sensor must be in NO position
• NO
2
, SO
2
and CH
4
sensors must be in “Others” position.
When a sensor has been replaced, it is possible to check the proper functioning of this new sensor by going in the “Information” menu of the
analyser. It is normal that a sensor that has just been installed gives the following message: “Current Error”, it is necessary to wait a few time to
stabilise the polarisation of the sensor.
Here are the stabilisation times for each sensor:
• O
2
: 48 hours
• CO-H
2
: 48 hours
• NO: 48 hours
• Low scale NO: 48 hours
• NO
2
: 48 hours
• SO
2
: 48 hours
• CH
4
: 48 hours
Maintenance of the analyser 39
5 6
O
2
CO
NO
Exercise the pressure on the sensor body and not on the electronic card.
* NO
2
, SO
2
and CH
4
sensors
Insertion of a new sensor then
rotation of the sensor
Connection of the
sensor ribbon cable
Others*