Hanna Instruments PCA 310 - Manual (Page 41)

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• With a calibrated meter take a measure of the sample. This
is the calibration value.
• Wait for the PCA to display the new reading.
• Go in “Chlorine menu” - “Cal. Measuring Cell” and edit
“Cal. Value” field.
• Enter the calibration value and save with “CFM”.
• The calibration coefficient and the calibration date will be
updated.
• Press repeatedly “ESC” to exit from menu mode. The displayed
chlorine concentration will be equal with the calibration value.
Note: It is not recommended to calibrate the analyzer at values below
2 mg/L in order to maintain enough accuracy in the whole
range. Calibration below 2 mg/L does not guarantee declared
accuracy outside an interval of ±50% from the calibration value.
pH SETTINGS (PCA 320, PCA 330)
Settings related to pH
measurement are
grouped in “pH
Menu”. The follow-
ing options are
available:
MEASURE INFO
The analyzer calculates the maximum and minimum pH value
since the first measurement.
The maximum and minimum can be quickly consulted on one
pH measuring panel.
For more detailed information select “pH Menu” - “Measure
Info” The “Max. Value” and “Min. Value”. The time stamp
when maximum and minimum occurs are also displayed in
this menu.
To reset the maximum
or minimum values,
select the functions
“pH Menu” - “Mea-
sure Info” - “Clear
Max. Value” or “pH
Menu” - “Measure
Info” - “Clear Min.
Value”.
The maximum or minimum value is set to the current read value.
Max.Value:14.00 pH
Date:03/01/01 14:39
Min.Value:00.00 pH
Date:04/01/01 00:03
Clear Max. Value
Clear Min. Value