32
7.
When ready to proceed, press the
[
Ready
]
button to freeze the residual
measurement and immediately take a grab sample from the inlet of the
analyser.
8.
Measure the grab sample to confirm the sample residual.
9. Use
the
[
→
]
key on the analyser to move through the digits and the
[
↑
]
key to increase the digit settings to adjust the calibration value.
10. Press
the
[
]
key to save the high calibration value and return to the
previous screen. Press the
[
Restore
]
key to restore the previous high
calibration value.
b.
Low Residual Calibration (Zero)
1.
After cell conditioning, run a water sample of known, near-zero residual
level through the analyser cell. Allow one (1) hour for stabilisation.
2.
From the Calibration screen, use the
[
↑
]
and
[
↓
]
keys to move through
the selection options.
3.
Stop when the double outline surrounds the ‘Low’ selection.
4. Press
the
[
Select
]
button.
5.
A list of data on the last calibration cycle will appear.
6. Press
the
[
Start
]
button.
7.
When ready to proceed, press the
[
Ready
]
button to freeze the
measurement and immediately take a grab sample from the inlet of the
analyser.
8.
Measure the grab sample to confirm the sample residual.
9. Use
the
[
→
]
key on the analyser to move through the digits and the
[
↑
]
key to increase the digit settings to adjust the calibration value.
10. Press
the
[
]
key to save the low calibration value and return to the
previous screen. Press the
[
Restore
]
key to restore the previous low
calibration value.
