AVL DiGas 4000 - Valve Unit (BO2139); Replacing the Temperature Sensor

4000 Opacity Measuring Chamber 4000
Service Manual 7-7
7.4.3 Valve Unit (BO2139)
Fig. 7-8
The motor, ident. no. BV2084, can be dismantled by undoing the two screws.
Temperature sensor PT 100: ident. no. EZ0180 for measuring the gas temperature
7.4.3.1 Replacing the Temperature Sensor
• Pull the PT 100 out and pinch off the litz wire.
• Solder on a new sensor.
• Insulate soldering points and insert the sensor in the bore again.
Valve plunger
RM0154
Valve block
YM3190
Inflow tube
YM3185
Drive motor
including cable
BV2084
Oval head screw
DS1270