Recalibrating Measuring Cells; Replacing Additional Filter - TESTO 335 Instruction Manual

I. Care and maintenance
48
I.2 Recalibrating measurimg cells
5 Insert a new measuring cell/bridge in the slot.
6 Attach tube connections to the measuring cell/bridge.
7 Attach the service cover and engage it in place.
After replacing an O2 measuring cell, wait 60 min before using the instrument again.
If retrofitting a measuring cell, you must activate the relevant measuring parameter
and unit, see Display edit , p. 28.
I.3

Recalibrating measuring cells

See Sensor settings , p. 32.
I.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 measur-
ing instrument is used normally.
Check the additional filter (visually) for contamination from time to time 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 Release the additional filter from the tube connec-
tions.
4 Fit a new filter (0133 0010) on the tube
connections.
5 Fit the service cover and clip into place.