HT instruments HT7052 - Manual (Page 35)

HT7052
EN - 33
9 MAINTENANCE
9.1 GENERAL INFORMATION
The instrument You purchased is a precision instrument. During use and storage, carefully
observe the recommendations listed in this manual in order to prevent possible damage or
dangers during use. Do not use the instrument in environments with high humidity levels or
at high temperatures. Do not directly expose to sunlight. Always turn off the instrument
after use. Never remove the front panel of the instrument. The instrument don’t need any
particular maintenance
9.2 REPLACEMENT AND CHARGING BATTERIES
The instrument is power-supplied through internal rechargeable batteries which are
recharged from the mains by means of a battery charger integrated in the instrument itself.
The symbol “
“ illuminated in the left bottom part indicates that the batteries are flat
and must be recharged
CAUTION
 Connect the instrument to the mains power supply for 20 hours to fully
charge batteries. (typical charging current is 600mA). When you charge the
batteries for the first time, it normally takes about 3 charge and discharge
cycles for the batteries to regain full capacity
 The operator does not need to disconnect the instrument from mains
supply after the full recharging period. The instrument can be connected
permanently
 The instrument will only work when rechargeable batteries are inside the
instrument
In case of batteries replacement follow the herewith steps:
CAUTION
Nominal power supply voltage is 7.2 V DC. Use only six NiMH cells with
size equivalent to IEC LR20 (diameter = 33 mm, height = 58 mm)
1. Turn the power off and disconnect any measurement accessories or mains supply
cable connected to the instrument before opening the battery cover to avoid electric
shock
2. Remove the two screws (see Fig. 1 – Part 15) and open the battery cover
3. Replace all the six batteries with others of the same type respecting the indicated
polarity
4. Restore the battery cover
5. Use the appropriate battery disposal methods for your area
9.3 CLEANING THE INSTRUMENT
To clean the instrument, use a soft dry cloth. Never use humid cloths, solvents, water, etc
9.4 END OF LIFE
Warning: the reported symbol indicates that the appliance, the batteries and its
accessories must be disposed of separately and treated correctly