3
NB: If any other information appears at this point, it is likely that the sensing part is dirty. Wash the
tip of the sensor and wipe it off with a clean cloth or the like, and then press the Power/Measure
key again.
Washing the sensing part thoroughly before use will improve measurement accuracy. Always
wash the sensor before use especially when it is intended to be used for measuring high-salinity
solutions.
(Refer to "Washing the sensor".)
3. Immerse the sensing part into the sample, and then press the Measure key on the probe (or press
the Power/Measure key on the main unit).
NB: If the tip of the probe is not immersed in the sample deep enough, accurate measurement may
not be achieved. Likewise, do not immerse the tip too deeply to avoid the possible
influence of the bottom of the container on the measurement values.
Use nonconductive containers such as glass, pottery and ceramic for accurate
measurement. Do not use Metal containers.
Calculating the average value
Stable measurement can be achieved by measuring several times and calculating the average value.
The unit calculates the average of up to nine measurements although it is possible to measure as many
times as needed.
Press the Average key after at least two measurements (no operation when pressed after one
measurement) to obtain the average value.
The display starts flashing and the average value appears together with [AVE] on the display.
The numerical value on the upper-right corner indicates the number of measurements performed.
The average value is rounded off to one decimal place and displayed.
Auto power-off function
The unit is equipped with an auto power-off function.
This function turns off the unit if there is no
operation for about one minute.
The range of concentration measurement and gram equivalent are retained.
While measuring in intervals, the unit does not automatically turn off.
Warning for Low Battery
When the battery is exhausted, "LO-BAT" appears on the display. Replace the battery to new one.
Otherwise, operation will not be possible.