AVL AVL DiCom 4000, Service Manual

Page: 26 / 182

Error Messages and Troubleshooting AVL 4000
2-4 Service Manual
2.1.6 Replace O
2
Sensor
When the O
2
sensor needs replacing, the appropriate message is output on the display.
•
Switch the tester off and disconnect it from the mains.
•
Remove the O
2
sensor (see section 5.6.1 Replacing the O
2
Sensor).
Whenever the O
2
sensor is replaced it must be reparametrised - see Operating Manual.
2.1.7 Replacing the NO Sensor
A message appears on the display when the NO sensor needs replacing.
•
Switch the instrument off and disconnect the mains cable.
•
Remove the NO sensor (see section 5.6.2 Replacing the NO Sensor).
Observe the safety instructions for handling O
2
sensors at the
front of this manual.
Old sensors must be properly disposed of
(they are highly toxic special waste).
Every time the O
2
sensor is replaced, this must be recorded
(i.e. entered in the maintenance book).
Observe the safety instructions for handling O2 sensors at the front
of this manual.
Old sensors must be properly disposed of
(they are highly toxic special waste).
Every time the O
2
sensor is replaced, this must be recorded
(i.e. entered in the maintenance book).