B&K Precision 2640 - Manual - Manual (Page 6)

6
B&K Precision 2640 Ni-MH battery is rechargeable. Charging is controlled from the power of
the battery cell and the temperature of the battery. Ni-MH Rechargeable battery is going to
increase temp slowly until the temperature is extremely higher. Battery charging is finished
automatically by checking the degree of the temperature (dT/dt). For battery protection, when
the power of Battery cell is increased, comparing regular temperature and/or exterior
temperature degree of when the temperature increases over 50 degrees, battery charging will
be finished automatically.
Operating personnel must use Ni-MH Rechargeable Battery and do not operate in an
explosive atmosphere.
- The battery usage time can change due to the using term, environment and
temperature.
- When battery consumption is large battery-running time will decrease.
Operating personnel should phase in a new battery when battery-running time is less than
half of the initial operating time.
- Operating personnel should not use this instrument and/or keep the battery in
place for long periods of time, which could result in discharge of the battery.
- To avoid damages to battery, when battery is low, this instrument will turn off
automatically.