HT77C
EN - 10
6. MAINTENANCE
6.1. GENERAL INFORMATION
1. The instrument you purchased is a precision instrument. While using and storing the
instrument, carefully observe the recommendations listed in this manual in order to
prevent possible damage or danger during use.
2. Do not use the instrument in environments with high humidity levels or high
temperatures. Do not expose to direct sunlight.
3. 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.
6.2. BATTERIES REPLACEMENT
When the LCD displays the “
” symbol, replace the batteries
CAUTION
Only expert technicians should perform this operation.
Before carrying out this operation, make sure you have removed the cable
being tested from inside the clamp jaw.
Fig. 9: Batteries replacement
1. Switch off the clamp
2. Remove the cable being tested from the clamp jaw
3. Loosen the three battery cover fastening screw and remove the cover
4. Remove the batteries from the cover
5. Fit two new batteries of the same type (see § 7.1.4) paying attention to correct polarity
6. Position the battery cover back over the compartment and fasten it with the relevant
screws
7. Do not scatter old batteries into the environment. Use the relevant containers for
disposal
6.3. CLEANING
Use a soft and dry cloth to clean the instrument. Never use wet cloths, solvents, water, etc.
6.4. END OF LIFE
CAUTION
: the symbol on the instrument indicates that the appliance and its
accessories must be collected separately and correctly disposed of.
