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ABB 4630 - Page 17

ABB 4630
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% Slope Value
pH CALIBRATION
–––––
pH Check Value
Continued from previous page.
l000
.
700
.
6 OPERATION
6.2.1 Operating Page
Slope Value:
a value between the programmed minimum % slope value (see
pH Calibration Minimum
Slope Value
in the Set Up Parameters Page on page 25) and 105% should be displayed.
If the value is outside these limits the electrode system must be checked.
pH Check Value:
is displayed as an additional indication of electrode system condition; 7pH being the
optimum value for glass electrodes and 0pH for Antimony electrodes.
Advance to PH Calibration Page see Sections 6.2.2 to 6.2.4.

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