Megger DET2/2, Руководство пользователя

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15
Battery capacity
The capacity of the battery is continuously monitored
and displayed, adjacent to the battery symbol. The
indicator segments will show fully charged, or recede
as the battery is used, to indicate three quarters full,
half full or quarter full. A warning message is displayed
if the battery is unable to supply adequate test current.
Charging method
It is advisable that the battery is fully charged before
embarking on a test sequence. Charging is carried out
by external a.c. mains supply only. Charging
commences automatically as soon as the supply is
connected. Normal recharge time is 6 hours. Testing is
inhibited during charging.
Battery charging requires a supply voltage of 100 V to
130 V a.c., or 200 V to 260 V, 50 - 60 Hz. Connection
to a voltage from 130 V to 200 V will not cause harm,
but will not charge the battery, and the message
“Power Supply too low” will be displayed. Charging
time will be extended if either the power supply voltage
drops too low during the charge period or if the battery
has been excessively discharged. Charge the battery
as follows:
1. Switch the Test switch to Off.
2. Remove any connections to the 4 mm external
supply sockets.
3. Disconnect and remove the test leads.
4. Connect the mains supply to the IEC 320
connector on the top right of the instrument.
Confirm that the message “C h a rging On” is
displayed. Progressive and accumulated charging
times are displayed.
5. When fully charged, the charging current will
automatically reduce to ”Tr i ckle Charge“.
Charging will automatically stop after a period of
24 hours.
Note: The battery will be prevented from charging if an
external battery is connected to the 4 mm sockets
during the charging process. An external connected
battery cannot be charged via the instrument.
Battery Charging