HT instruments HT8100 - Manual (Page 21)

HT8100
EN - 20
5. MAINTENANCE
CAUTION
 Only expert and trained technicians should perform maintenance
operations. Before carrying out maintenance operations, disconnect all
cables from the input terminals.
 Do not use the instrument in environments with high humidity levels or
high temperatures. Do not expose to direct sunlight.
 Always switch off the instrument after use. In case the instrument is not to
be used for a long time, remove the battery to avoid liquid leaks that could
damage the instrument’s internal circuits.
5.1. REPLACING THE BATTERIES AND THE INTERNAL FUSES
When the LCD displays the “ ” symbol, replace the batteries.
Fig. 11: Replacing the batteries and the internal fuses
Battery replacement
1. Remove the test leads.
2. Remove the fastening screw and remove the battery compartment cover.
3. Remove the batteries and insert the same number of batteries of the same type (see
§ 6.1.3) respecting the correct polarity, then restore the battery compartment cover (see
Fig. 11). Use the relevant containers for battery disposal.
Fuse replacement
1. Position the rotary switch to OFF and remove the cables from the input terminals
2. Remove the fastening screw and remove the battery compartment cover.
3. Remove the damaged fuses, insert the same number of fuses of the same type (see
§ 6.1.3) and close the battery compartment again.
5.2. CLEANING THE INSTRUMENT
Use a soft and dry cloth to clean the instrument. Never use wet cloths, solvents, water, etc.
5.3. END OF LIFE
WARNING: the symbol on the instrument indicates that the appliance and its
accessories must be collected separately and correctly disposed of.