LaMotte LTC3000wi Turbidity & Chlorine Lab Meter - Manual (Page 11)

BATTERY/AC OPERATION
The LTC3000we/wi may be operated on battery power or using a USB
computer/ wall adapter. If using the meter as a bench top unit, use the
AC wall adapter if possible to extend the battery life.
To charge the battery with the wall adapter, plug the smaller end of the
USB cable (USB mini B connector) into the meter and the larger end of
the USB cable (USB Type A connector) into the wall adapter. Plug the
wall adapter into an AC outlet.
To charge the battery from a computer, plug the smaller end of the USB
cable (USB mini B connector) into the meter and the larger end of the
USB cable (USB Type A connector) into a USB port on the computer..
The battery icon will show no bars and fl ash when the unit fi rst turns on.
Then the indicator will indicate the battery status by showing 0, 1, 2, 3 or
4 bars.
It will take 5 hours to fully charge a low battery. The battery icon will
fl ash when the battery is charging. The battery icon will show four bars
and stop fl ashing when it is fully charged. The charging circuit will
automatically switch to a fl oat charge when the battery is fully charged.
The charger may remain connected. Some computers will NOT supply
power to their USB ports during standby operation. The wall charger will
charge the unit continuously.
The battery icon will show no bars and continuously fl ash if the battery
is getting low but the unit will still operate normally. A “Low Battery”
message on the status bar of the display will replace the time when the
battery voltage is too low for proper operation and accuracy may be
degraded. A “Shutdown Low Batt” message on the display will appear
for a few seconds before the power is switched off when the battery is
too low to operate the unit.
To extend the battery life:
• Shut down the unit with the power switch when not taking
measurements or use the power save option to have the unit
automatically turn off after 5 minutes.
• Store the unit in a cool dry place.
• Fully charge the battery before storing the unit for extended
periods of time.
• Limit backlight use. The unit consumes 3X normal power with
the backlight on.
Set the backlight time option to 10 seconds, or select “Button Control”
and keep the backlight off.
Battery replacement: The lithium-ion battery used in this unit should
last for many years with normal use. When it no longer powers the unit
long enough to meet testing requirements it will need to be replaced.
Lithium-ion batteries that are properly charged and stored do not usually
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