Maintenance; General Information; Battery Replacement; Cleaning The Instrument - HT HT77N User Manual

5. MAINTENANCE

5.1. 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.

5.2. BATTERY REPLACEMENT

When the LCD displays the " " symbol, replace the battery.
1. Switch off the clamp.
2. Remove the cable being tested from the clamp jaw.
3. Loosen the battery cover fastening screw and remove the cover.
4. Disconnect the battery from the connector.
5. Fit two new batteries (see § 6.1.3) and pay attention to correct polarity
6. Position the battery cover back over the compartment and fasten it with the relevant
screw
7. Do not scatter old batteries into the environment. Use the relevant containers for
disposal

5.3. CLEANING THE INSTRUMENT

Use a soft and dry cloth to clean the instrument. Never use wet cloths, solvents, water, etc.

5.4. END OF LIFE

CAUTION: the symbol on the instrument indicates that the appliance and its
accessories must be collected separately and correctly disposed of.
Quality HT Products Online at:
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. 8: Battery replacement
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