Maintaining the product 13
3
Close battery compartment.
4 Set battery type and check/set date/time, see chapter
First ssteps
,
handling objective
Switching iinstrument oon
.
±
Replacing tthe vvalve oor tthe ppositioner kknob:
Warning!
Replacing of the positioner knob and the valve by the customer is not
allowed. Send the instrument to Testo customer service.
enfresitptsvnl????