ETS-Lindgren HI-6006, User Manual, Page: 83 / 92

83 82
Never attempt to
recharge a non
rechargeable battery.
• When possible, leave the robe connected to the battery charger, and
the battery charger connected to the mains electrical supply (charger
operating). The battery charger status indicators will show
CHARGER ON
and
COMPLETE
when the batteries are on a maintenance charge.
• Operate the robe only within the optimum operating temperature range
of +20ºC to +30ºC (+68ºF to +86ºF). Although NiMH batteries are rated for
operation in temperatures from 20ºC to +65ºC ( 4ºF to +140ºF),
operating the probe at temperature extremes reduces the operating time
of the batteries.
• Make sure the batteries are fully charged before resuming operation. The
batteries do not require periodic deep discharges to reverse the effect
caused by repeated shallow discharges, but undercharging can reduce
battery capacity.
Fully charged batteries (nominal output voltage of 4.8 VDC) provide up to 30
hours of operation. When the batteries have discharged to 4.4 VDC, the probe
will operate, but the batteries need to be charged. When the voltage
drops below 4.0 VDC, measurement accuracy may be compromised by
continued operation.
When the battery voltage indication is less than 4 volts, a low battery
indication is attached to the output data string warning of the problem.
ETS-Lindgren software applications provide a warning indication on the
display screen of the readout device. It is recommended that custom
software packages using data from the probe monitor the data output
for this condition.
If the batteries exhibit low terminal voltages during charging, or if they appear
unable to acquire or maintain a charge, the batteries may be shorted or
damaged. To replace the batteries, see HI-6053 Battery Replacement.
Charging the Batteries
For maximum battery life, fully charge the batteries before placing the probe
into service. Failing to fully charge the batteries may result in reduced battery
life and cause premature battery failure.
To charge a battery:
1. Make sure the probe is off or the batteries will not charge.
2. Connect the battery charger to the electrical mains, and then plug the
charger output into the battery charger connector on the probe.
Charging Indicators
The following LEDs are located on the front of the battery charger:
• POWER ON (green)—Indicates the battery charger is connected to the
AC power source.
• NO BATTERY
(amber)—Indicates the battery charger does not detect a
battery.