does anyone have a pro III controller HELP!!!!

[jasonperez]

im trying to calabrate the PH prob and cant do so!!! dose anyone use this neptune systems pro III??? i need it to controll my CO2 tank, i want to get my reactor up and going!!! :splitspin

 

[Deanos]

From the manual:

pH Calibration:

Because of the variability in pH probes and the fact that they change over time, it is best to calibrate the
AquaController III Pro pH circuitry. A two point calibration scheme is used to obtain the good results. For the
most accurate results it is best to use pH 7.00 and 10.00 solutions for salt water and pH 4.00 and 7.00 for fresh
water.
The following procedure outlines the steps necessary:

1. Go to the Setup: pH Setup menu. Enable or disable temperature compensation depending
upon your requirements.
2. Select the pH Calibrate menu.
3. Use the Up and Down buttons to select the lowest valued calibration solution. In order for the
calibration procedure to work correctly the low valued calibration must be used first.
4. Place the pH probe and temperature probe into lowest valued calibration solution. Wait for
the numbers on the bottom of the LCD screen to stop changing. It does not matter what
value is displayed only that it is not changing. When the display stops changing press the select
button.
5. Rinse the probe in room temperature tap water.
6. Use the Up and Down buttons to select the high valued calibration solution. Press the select
button when the correct value is displayed.
7. Place the pH probe and temperature probe into high valued calibration solution. Wait for the
numbers on the bottom of the LCD screen to stop changing. When the display stops
changing press the select button.
8. The pH probe should now be properly calibrated.

 

[jasonperez]

Dean, i have #8 and #10 PH calibrateing solutions will that work or do i need #7?
also is there no steps after? When the display stops changing press the select
button.
i dont have to change the #'s to the the #7 or #10 it will do this automaticly?