Service And Maintenance; Changing The Batteries; Cleaning The Instrument; Questions And Answers - TESTO 104 Mode D'emploi

14 9. Service and Maintenance

14
9. Service and Maintenance

9.1 Changing the batteries

9.2 Cleaning the instrument

Only use weak, commercially available neutral/household cleaning
agents (e.g. washing-up liquid) to clean the instrument. Do not
use any aggressive cleaning agents or solvents!
The housing and probe can be disinfected using an alcohol-
based spray. In doing so, always follow the manufacturer's
instructions.
Clean the housing and probe under running water and rub dry
with a towel.

10. Questions and Answers

Question
lights up.
- - - lights up.
Instrument cannot
be switched on.
Instrument switches
itself off.
If we have not answered your question, please contact your local
dealer or Testo´s Customer Service.
For contact details, please visit www.testo.com/service-contact.
1 Loosen the screw on the battery
compartment.
2 Open the battery compartment.
3 Insert batteries (2 x AAA).
Observe the polarity!
4 Close the battery compartment.
5 Tighten the screw.
Possible causes
Batteries dead.
Measurement range exceeded.
Batteries dead.
The instrument switches off
automatically 60 minutes
after it is switched on.
Possible solution
c Change batteries.
Measurements can only
be carried out in the
range specified.
Change batteries.
Close and reopen the
immersion/penetration
probe.