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Hello,
I am trying to calibrate my apex pH probe. After calibrating in pH 10 solution I keep the probe in the pH 10 and apex reads between 9.0 - 9.7 after calibration.
I calibrate pH meters as part of my job, why is it saying the pH 10 is in acceptable range if the pH10 solution is actually 9.0?
I suspect the buffer is bad, but if the buffer is bad the apex should fail calibration no?
Picture is of after successful calibration with probe still sitting in 10 solution, it should read 10.0 because that is what I told the machine it is.
help?
I am trying to calibrate my apex pH probe. After calibrating in pH 10 solution I keep the probe in the pH 10 and apex reads between 9.0 - 9.7 after calibration.
I calibrate pH meters as part of my job, why is it saying the pH 10 is in acceptable range if the pH10 solution is actually 9.0?
I suspect the buffer is bad, but if the buffer is bad the apex should fail calibration no?
Picture is of after successful calibration with probe still sitting in 10 solution, it should read 10.0 because that is what I told the machine it is.
help?