Changing The Filter Paper - TESTO 338 Instruction Manual

7 Maintaining the product
7.4.

Changing the filter paper

CAUTION
The measuring lens may become damaged or contaminated!
> Keep the paper rolls free of contamination, as this could
potentially be transmitted to the measuring lens.
> Do not touch the protective glass of the measuring lens.
1. Isolate the instrument from the mains and switch it off before
changing the filter paper (1).
2. Remove TopSafe, see Removing TopSafe from the testo 338,
page 27.
3. Open the lock of the service lid (2).
4. Open the service lid (3) and remove it from the instrument.
5. Pull the winder out of the bracket (4).
6. Remove the plastic sleeve of the spent paper roll from the
winder and dispose of this (5).
1
Off
30
Do not crinkle the filter paper to ensure that the paper is fed
through smoothly.
3
2
(3)
4
5