DIGIOHMpro
- 14 -
4.1.2. Charging of accumulators
For charging of accumulators use only adapter supplied as
optional accessories!
Accumulators are charged as soon as the adapter is connected to mains and to
socket for accumulators charger (see Fig. 2.1). If accumulators are fully
discharged, the charging takes about 6 hours (applies to batteries with a
capacity of 800 mAh). Prolonged charging is not a problem; however, do not
charge accumulators for more than 12 hours.
Notes:
•
Do not charge alkaline cells – it may lead to explosion, leakage, etc. This can
cause serious damage or destruction of instrument.
•
During charging of new accumulators or ones that were unused for a longer
period (few months) unpredictable chemical processes may arise. As a result,
the instrument operation time can be significantly reduced. In this case, we
recommend several charge (with optional charger) / discharge (normal use of
the instruments) cycles.
Another way is to use a stand-alone intelligent charger which discharge /
charge each cell individually. The discharge / charge cycle is automatically
executed, see instruction manual for the charger used.
After the procedure, the capacity of the accumulators should return to normal.
The above described cycle in stand-alone intelligent charger is recommended
every few months to make.
•
If after several cycles of the above described discharge / charge capacity of
the accumulators does not return to normal, this may be due to the fact that
the one or more accumulators are degraded - whereas, the built-in
accumulator charger charges all cells connected in series at the same time,
and even one bad (or just different) cell negatively affects the entire
accumulator pack.
It may result in uneven charging of cells, excessive heating of the cell(s)
during charging etc.
In this case, we recommend that a faulty cell is identified with an intelligent
stand-alone charger, or at least comparing the voltage of each cell and then a
faulty cell replace with a new one.
•
The above-described effects can not be confused with a normal reduction in
accumulators’ capacity over time. All accumulators with a growing number of
charge / discharge cycles gradually loose capacity. This is normal, depending on
accumulator type, the number and parameters of the discharge / charge cycles.
4.1.3. Replacing the fuse
Replace the fuse by the same type only:
GF F0.5A/500V, breaking capacity 1500A, dimensions 32x6,3mm.
Using of another type of fuse can cause damage of the
instrument and/or operator’s safety can no longer be guaranteed!
