4.2.9
When the SLOPE point is established, the instrument will
beep and the ‘AUTOLOCK’ indicator appears.
Calibration is completed.
4.2.10
For every successive calibration, the instrument will
retain the last calibration data until the next calibration.
TERMINATION DURING CALIBRATION
If you wish to abort a calibration or if you have accidentally
activated the CAL key, press the READ/AUTO key to abort the
calibration and return to read mode.
5.
MEASUREMENT
For an accurate measurement, prepare containers filled with
distilled water and two test sample solutions – one for rinsing
and the other for testing. This will prevent carry-over of solution
during testing.
5.1
pH Measurement with Temperature Probe
5.1.1 Rinse the pH electrode and temperature probe in
distilled water and switch on the instrument.
5.1.2 Rinse the pH electrode and temperature probe in the
first test sample solution and then dip in another test
sample solution and press READ/AUTO key.
5.1.2
The Wait indicator will flash momentarily until reading is
stabilized. The instrument will beep and the
‘AUTOLOCK’ indicator appears. Reading is established.
5.1.3
To disable the AUTOLOCK feature and enable
continuous reading, press and hold the READ/AUTO key
for 3 seconds. To resume to the AUTOLOCK mode, press
the READ/AUTO key once.
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