GF Signet 4632 Chlorine Dioxide Analyzer System - Manual (Page 23)

23 463X Chlorine System Manual
Set Manual pH Compensation
If the pH of the application is stable, then the pH of the
application can be entered manually and will be used to
calculate the free chlorine measurements.
NOTE: Chlorine dioxide does not require pH compensation.
Example: Change the pH input from Sensor to Manual
and enter a pH value of 7.22.
1. Go to the Options Menu.
2. Scroll down ź 2 menus to the pH Input menu.
3. Press Ź to enter Edit Mode.
4. Choose
Manual and press Enter.
5. Scroll down ź 1 menu to the Manual pH Value menu.
6. Press Ź to enter Edit Mode.
7. Enter your new process pH value: 7.22.
8. Press the Enter button to save the setting.
9. Exit to the View Menu.
E X A M P L E
pH Sensor Calibration
E X A M P L E
Set pH Slope
1. Remove the pH sensor from the ¿ rst buffer solution and
rinse it in distilled water.
2. Place the pH sensor in a different buffer solution
(example: pH 4.01). The pH standard and slope must be
at least 2 pH units apart.
3. Note the pH and mV readings on the View Menu and
allow it to stabilize.
Example: Set pH slope to 4.01.
4. Scroll down ź 1 menu to the pH Slope menu.
5. Press Ź to enter Edit Mode.
6. Enter the pH value of the buffer that the electrode is
placed in; 4.01 in this case.
7. Press the Enter button to save the settings.
8. Exit to the View Menu. Ÿź
9. Replace the pH sensor back into its À ow cell.
10. Turn on the water À ow.
The pH sensor calibration is complete.
View Menu
Calibrate Menu
pH Slope
Calibration:
>
pH Slope Cal:
04.01 pH/ +177 mV
pH buffer value
entered here
4
6
5
pH Standard Cal:
07.00 pH/ 0 mV
E X A M P L E
ENTER ENTER
Options Menu Step 2
5
7
4
pH Input
Sensor
>
pH Input
Manual
>
pH Input
Sensor Manual
Manual pH Value
7.220 pH
New pH value entered
Manual chosen
E X A M P L E
ENTER ENTER
ENTER ENTER