Insert the new sensor paying attention to match the sensor connectors with the relevant supports on the
circuit board.
Place back the tubes (See point 4).
Close back the base of the instrument and screw back the four screws (See point 2).
Turn on the instrument to check the new sensor works correctly through the menu "Sensor Troubleshooting".
It is normal if a newly installed sensor gives a 'current error': it is necessary to wait some time, so that the sensor
polarization can settle.
The table here below shows the minimum settling time for each sensor.
CODE DETECTED GAS POSITION SETTLING TIME
2
O2
Oxygen
S1
8 hours
CO Sensor with NOx filter
0-4000ppm
Cod. AACSE58
CO
Carbon Monoxide
S2
2 hours
NO Sensor
Cod. AACSE60
NO
Nitric Oxide
S3
8 hours
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