5
REPLACING THE BATTERIES
Follow the procedures to replace the internal batteries.
1.Replace batteries when the
BAT
indicator appears on the LCD. The instrument can
operate within specifications for approximately one hour after
BAT
starts to appear.
2.The battery compartment is located at the bottom side of the meter (Refer to Figure 4).
Flip the meter over so that the bottom side is facing up. Lift the battery compartment
cover to expose the battery compartment.
3.Replace all six type AA batteries.
4.Replace battery compartment cover.
FIGURE 4
TURNING ON / OFF THE INSTRUMENT
Once the batteries are installed correctly and / or an AC adapter is plugged in the unit, it
automatically turns on. If not, press the [
ON/OFF
] key to turn it on. It will activate all
segments of display for a few seconds then it will display the current cell constant. After a
little while it will display the percentage of power supply. After the self-diagnostic is
completed the temperature will be displayed on the LCD and the instrument is ready to
make a measurement. Immerse the probe half-way in the solution. If possible do not allow
the probe to touch any solid object in the solution. There should be no air bubbles around
the probe either. Shaking or moving the probe vigorously before recording any
measurement will dislodge any bubble formed in the probe.
When the unit is not in use, the user should turn off the instrument by pressing the
[
ON/OFF
] key to save battery life.
By just unplugging the AC adapter will not turn off
the instrument if batteries are present, it would automatically switch to battery
power and will continue to operate.
