AVL DiGas 4000 - Replacing the O; Sensor; Replacing the no Sensor

4000 4-/5-Gas Measuring Instruments Unit
Service Manual 5-11
5.6.1 Replacing the O
2
Sensor
• Always switch the instrument off and pull the mains plug out of the socket.
• Remove the O
2
sensor cover by unscrewing the four screws from the rear panel.
• Replace the O
2
sensor.
5.6.2 Replacing the NO Sensor
• Always switch the instrument off and disconnect the mains plug from the socket.
• Remove the cover panel on the right of the rear panel by undoing the four screws.
• Pull the NO sensor backwards out of its mounting (it is on the left).
• Insert the new NO sensor (ident. number: EZ0206).
• Screw the cover panel back onto the rear panel of the instrument – making sure that
the ground cable is connected.
Whenever a new O
2
sensor is installed, it must be
reparametrised (see O
2
sensor)
Follow the safety instructions for handling O
2
sensors!
Do not throw the old O
2
sensor away. Return it to the
factory for proper waste disposal (it is highly toxic
hazardous waste).
Follow the safety instructions for handling O
2
sensors!
Do not throw the old O
2
sensor away. Return it to the
factory for proper waste disposal (it is highly toxic
hazardous waste).