BNC 835 User Manual - Manual (Page 50)

Berkeley Nucleonics Corporation 2955 Kerner Blvd., San Rafael, CA 94901
Phone: 415-453-9955, Fax: 415-453-9956, Email: [email protected], Web: www.berkeleynucleonics.com
Figure 6-a CW Display with Battery Symbol
Hints for maximizing the battery running time:
1. Fully charge the unit before you use it. Toggle the power switch to ON and then OFF again
while the instrument is powered by the external power adaptor. This will initiate a new charge
cycle.
2. Charging time of a completely discharged battery can be up to 6 hours. IMPORTANT: The
battery will only be charged when the instrument power switch is in the OFF position.
3. Batteries should always be charged at room temperature. Charging the instrument at very low
or at elevated temperatures may result in early termination of the charging process for
example the battery is not fully charged. For safety reasons the charging does not start when
the internal temperature of the instrument is above 50 °C.
4. Check the battery indicator in the upper right corner of the display. It should indicate full
charge when running on battery power after charging (4 segments).
5. Power consumption of the instrument is reduced when the RF power is switched off thereby
increasing overall battery run time.
6. Battery run time is maximal for ambient temperature between 15 and 25 °C. Self-discharge of
the battery is much faster at temperatures above 30 °C.
7. Avoid storing the instrument in very hot places such as behind the windshield of a car parked
in the sun.
Hints for maximizing battery life expectancy:
1. The battery will reach its best performance after the first few charge-discharge cycles.
2. Always use the external power adaptor supplied with the instrument for normal operation and
charging. This will make sure that the charging circuits work as specified.
3. Fully charge the instrument after running it from the battery for an extended period of time.
4. If an instrument with internal battery will be stored for a long period of time, fully charge it
before storage, then remove the power adaptor and make sure that the power switch is in the
OFF position. After storage, first charge the unit for 4-6 hours.