HT instruments HT701 - Manual (Page 20)

HT701
EN - 19
5. MAINTENANCE
CAUTION
 Only expert and trained technicians should perform maintenance
operations. Before carrying out this operations, make sure you have
disconnected 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 FUSE
When the LCD displays the flat battery symbol “ ”, it is necessary to replace the batteries
Fig. 11: Replacing the batteries and the internal fuse
Battery replacement
1. Remove the test leads from the instrument.
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 (see § 4.3.6)
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 fuse, insert a fuse 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.