Calibrating PH Probe

jchillin · 10/02/2005, 03:13 PM

I calibrated my PH probe using Milwaukee PH 7.01 & 10.01 buffer solutions.

When I put the probe in the 7.01 solution it stabilized at 7.76

In the 10.01 solution it stabilized at 10.99.

Are these numbers accurate? Or should the PH numbers been closer to 7.01 & 10.01 when I put the probe into buffers??

After putting the probe in the tank, it shows my PH is 8.03, and tested at 8.20 with a test kit.

clp · 10/03/2005, 09:56 AM

The numbers displayed during calibration don't matter. After calibration with the controller in the run display, double check that your probe has been properly calibrated, by putting it in the calibration solutions.

Curt

jchillin · 10/03/2005, 06:47 PM

Good idea. Why didn't I think of that..... Thanks for your help!

10/02/2005, 03:13 PM	#1
jchillin Registered Member Join Date: Feb 2004 Location: Ohio Posts: 82	Calibrating PH Probe I calibrated my PH probe using Milwaukee PH 7.01 & 10.01 buffer solutions. When I put the probe in the 7.01 solution it stabilized at 7.76 In the 10.01 solution it stabilized at 10.99. Are these numbers accurate? Or should the PH numbers been closer to 7.01 & 10.01 when I put the probe into buffers?? After putting the probe in the tank, it shows my PH is 8.03, and tested at 8.20 with a test kit.

10/03/2005, 09:56 AM	#2
clp RC Sponsor Join Date: Aug 2001 Location: San Jose, CA Posts: 4,311	The numbers displayed during calibration don't matter. After calibration with the controller in the run display, double check that your probe has been properly calibrated, by putting it in the calibration solutions. Curt

10/03/2005, 06:47 PM	#3
jchillin Registered Member Join Date: Feb 2004 Location: Ohio Posts: 82	Good idea. Why didn't I think of that..... Thanks for your help!