Data Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the LCD will
display a " HOLD " symbol.
Press the " Hold Button " once again will release the data
hold function.
5. REPLACEMENT OF BATTERY
1)When the left corner of LCD display show " " ,
It is necessary to replace the battery. However, in-spec
measurement may still be made for several hours after
Low Battery Indicator appears before the instrument
become inaccurate.
2)To replace the battery, remove the " Battery Cover "
( 3-5, Fig. 1 ) on the rear cabinet.
3)Take out the battery, install a new one ( 006P DC 9V )
and reinstall the battery cover again.
6. ELECTRODE STORAGE, CLEANING
and RECONDITIONING
6-1 Electrode Storage
When the readings are made infrequently, for example,
several days or weeks apart, the electrode can be stored
simply by replacing it in its soaker bottle. First, slide the
cap onto the electrode, then the o-ring, then insert the
electrode into the bottle and firmly tighten the cap. If
the solution in the soaker bottle is missing, fill the bottle
with pH 4 buffer.
6
