Recalibrating / Adjusting Sensors; Replacing Additional Filter - TESTO 330 Instruction Manual

5. Install new sensor / new bridge in the slot.
6. Plug the hose connections on sensor / bridge.
7. Attach the service cover and engage it in place.
7.3.

Recalibrating / adjusting sensors

See Sensor settings, page 51.
7.4.

Replacing additional filter

The additional filter provides added protection should problems
occur with the particle filter in the flue gas probe. The additional
filter is very rarely contaminated if the measuring instrument is used
normally.
> Check the additional filter (visually) periodically for
contamination and replace it if necessary.
1. Place the measuring instrument on its front.
2. Remove the service cover: Take hold of it at the markings
(arrows) using the index finger and thumb, press slightly, fold
up and remove.
3. Loosen the additional filter from the hose connection.
4. Plug the new filter (0133 0010) into the hose connection.
leave the sensor without auxiliary circuit board for
longer than 15 min.
After replacing an O2 sensor, wait for an equalization
period of 15 min to elapse before using the instrument
again.
When retrofitting a sensor the associated measurement
parameter and unit must be enabled, see Measurement
view, page 45.
When replacing an O
interrupted for more than 10 hours, we recommend an
acclimatization time of 1 hour to maintain the measuring
accuracy.
7 Maintaining the product
sensor, if the power supply is
2
75