Bartington Grad-13 Series Operation Manual page 13

WARNING: The charger mains voltage selector switch must be in the appropriate position,
i.e. either set to 230V or 125V. The internal battery must be charged with the supplied
charger only.
On the front of the charger there are two LEDS that will light up to indicate it is powered and
charging, see figure 6 below:
Mains Indicator LED: Indicates mains power is on when RED.
Charge Indicator LED: Lights up when the charger cable is connected and powered. It will show
as RED during charging and GREEN when charging is complete.
WARNING: The charger must be switched off before connecting to and disconnecting from
the Grad-13 Multiplexer Box
Charge time from flat is approximately 8 hours.
Note: the Charge Complete LED turns green when the battery is around 95% charged;
allowing an extra hour or so after this point ensures a fully charged battery.
Refer to the Grad-13 product brochure for maximum ambient charging temperature.
For further information on connecting the charger to a mains supply, see
for Connection to Mains Supply.
DCN1040
BARTINGTON INSTRUMENTS
Figure 6: Battery Charger LED Indicators
Page 13 of 39
Mains Indicator
Charge Indicator
Appendix A: Guidance
OM3100/2