Maintenance; Changing The Rechargeable Battery Or Battery; Changing The Fuses - TESTO 312-1 Instruction Manual

2
3
4 1
Open the cover
1

Changing the rechargeable battery or battery

Remove rechargeable batteries/batteries if the
instrument is not used for a longer period of time. If the
battery cells leak in the instrument, return instrument to
factory to be cleaned and checked.
Only the rechargeable batteries/batteries specified in the
technical data should be used.
Switch off instrument and disconnect from all
measuring circuits before changing the rechargeable
Date and time are saved when the instrument is
alt
Remove empty/defect rechargeable batteries or empty
batteries from the battery compartment and replace with
new ones.
neu Observe correct polarisation of rechargeable batteries
or batteries.
Instrument should only be used if the battery
compartment cover is closed.
Switch off instrument and disconnect from all measuring
Only the fuse specified in the technical data should be
The use of provisional fuses and in particular the short-
circuiting of fuse holders is not permitted and can
destory the instrument and cause serious injury to the
Instrument should only be operated if the fuse
Remove
2
fuse
battery or battery.
switched off.
circuits before changing the fuse.
used.
user of the instrument.
compartment cover is closed.
3 Put in spare
fuse
Checking the fuse
The resistance in the
connections of the fuse,
measured with an ohmeter,
must be in the ohm range.
15

Maintenance

Changing the fuse
Close cover by pressing
4
down until a clicking
noise is heard