20
①
The electric discharge phenomena will appear if the internal or external electrode of test
cell is not in place or the internal electrode is not assembled well.
②
The test cell is needed cleaning if it is not clean or there are impurities between the inner
and outer electrodes.
2. The instrument returns to the main interface after the buzzer beeps 5 times.
A
：①
Check if the capacitance value of dry cell is within the range of 60±5pF.
②
Check whether the test cell is in place, and if it appears discharge phenomenon.
3. When testing DC resistivity, the time for 60 seconds of electrochemical process makes no
changes.
A
：
Check if the instrument’s clock is in operation, and adjust the clock.
4. When the unit of the voltage parameter to be set displays non-zero, how to do?
A
：
Press the [down] key to make the voltage parameter to be set becoming the minimum,
and then click the [up] key to adjust it .
