TESTO 760 - Fuse Management and Instrument Care; Fuse Replacement Procedure

8 Service and maintenance
19
8.3. Changing the fuses
✓ Instrument is switched off and de-energized.
When opening/assembling the instrument, take care not to lose
any of the removed screws. Placing a cloth on the work space is
recommended.
1. Fully disconnect the instrument from the test leads.
2. Fold out the stand.
3. Undo and remove the screws (1 to 6) using a cross-head screwdriver.
4. Remove the lower section of the housing.
5. Remove the defective fuse from the fuse holder using an appropriate
fuse puller.
WARNING
Serious risk of injury and destruction of the instrument due to
makeshift fuses and short-circuiting of fuse holders.
> Only use fuses with the voltage and current values listed under "Technical
data".
6. Insert the new fuse into the fuse holder using the fuse puller.
7. Put the lower section of the housing on and screw on using the screws.
8. Fold in the stand.
8.4. Maintenance
When operated in accordance with the instruction manual, the instrument
does not require any particular maintenance.
If a malfunction occurs during operation, the ongoing measurement should
be stopped immediately. Send the instrument to Testo Service for checking.
8.5. Calibration
In order to maintain the specified accuracy of the measurement results,
Testo recommends calibrating the instrument once a year. Send the
instrument to Testo-Industrial-Services GmbH for calibration.
8.6. Storage
- Store the instrument in dry, closed rooms.
> If the instrument is not in use for a significant period of time: remove
the batteries in order to prevent any danger or damage due to any
potential leaking of the batteries.
8.7. Cleaning
Before cleaning, the instrument must be switched off and disconnected
from external voltages or from other connected instruments (test specimen,
control units, etc.).
> Wipe the instrument with a damp cloth and a small amount of mild
household detergent.
Never use any harsh cleaning agents or solvents to clean the instrument!
After being cleaned, the instrument must not be used until it has completely
dried.