Instruction Manual
11
Cleaning the Vacuum Sensor
It may happen that in rare cases, the vacuum sensor is contaminated with
oil, and cleaning is then required.
The following cleaning process must be followed:
1. Remove battery
2. Remove sinter filter
3. Turn the unit upside down with the vacuum connector facing up.
4. Put a few drops of isopropanol into the sensor housing.
5. Place a finger over the connector and close the sensor with it.
6. Shake the instrument for a few seconds.
7. Remove finger and let alcohol out of sensor, shake.
8. Repeat steps 4 to 7 twice.
9. Allow the sensor to dry in ambient air for at least 1.5 hours or
draw vacuum for more than 2 minutes.
IMPORTANT: It is imperative that the vacuum sensor is dry!
10. Re-fit the sinter filter. It is recommended to use a new sinter filter.
11. Now the batteries can be inserted and the instrument can be
switched on again
Periodic cleaning of the vacuum sensor is not recommended.
8.0
TROUBLESHOOT
Problem
Action
M
ea
su
rin
g
The Display shows OOR
(Out Of Range).
Reduce the pressure to the
Device.
