NewSonic SonoDur2 Issue 04 09/2016 Page 18
If the SonoDur2 is connected to a USB port of a PC/laptop, charging is only possible when the
instrument is turned off! Nevertheless charging time increases significantly because the USB port
could only supply limited power.
Please note:
During on state, the USB-port is not able to deliver enough power to charge the battery pack.
Fully discharged batteries or deep-discharged cells (due to prolonged storage) must be charged by
means of the SONO-NG. A connection to a USB port would result in a shutdown of the USB port due
to the high charging current level!
Prior to initial operation, the SonoDur2 hardness tester should be connected at least 4 hours to the
SONO-NG battery charger.
Attention:
Please also observe our safety guidelines under “Section Safety Information“, page 12.
In order to ensure a long life of the block battery, please follow the instructions below:
After the device has been used for the first time, we recommend to fully charge/discharge
the battery between 2 and 3 times.
Please use the device only within the specified temperature range (see section “Technical
Data – SonoDur2“, page 65)!
The battery life is greatly reduced at higher ambient temperatures. Optimum charging takes
place at temperatures between 0°C and 25°C. We therefore recommend unplugging the
power supply unit at higher temperatures.
Please prevent the batteries from becoming completely discharged. You may even charge
the device more frequently, since it does not harm the capacity of the battery!
Avoid storage at high temperatures, for instance, don’t leave the device in your car during
summer!
If you keep the device out of service for a prolonged time, charge the battery pack and store
the device in a dry and cool place.
Please note:
Remove the USB cable SONO USB from the device, if voltage is not supplied to the power supply unit
or USB port. The SonoDur2 could become discharged!
Your Complete Source for
Testing Equipment. Since 1969!
www.BergEng.com
Berg Engineering & Sales Company, Inc.
Tel 847-577-3980
info@bergeng.com
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