cyberwild360
01/30/2012, 12:41 PM
I have had my probe for about 9 months now and I have noticed the readings were not right. It started reading in the 5's.
I bought some calibration fluid and when trying to calibrate to 7 the numbers on the apex only read like 516 or so.
I tried calibrating to 10 and the numbers only went as high as like 831 on the Apex.
After calibration it read my pH as 7.52. I used a salifert pH test kit and it was reading my pH at 8.0
What am I doing? The first time I calibrated I had no problems. I stuck the probe in the 7 and the numbers read in the 700's same went with 10. The numbers went to like 1010.
Any help would be appreciated. I cleaned the probe bulb with a soft toothbrush as it says to in the unofficial user guide (very gently) but it looked pretty clean.
I bought some calibration fluid and when trying to calibrate to 7 the numbers on the apex only read like 516 or so.
I tried calibrating to 10 and the numbers only went as high as like 831 on the Apex.
After calibration it read my pH as 7.52. I used a salifert pH test kit and it was reading my pH at 8.0
What am I doing? The first time I calibrated I had no problems. I stuck the probe in the 7 and the numbers read in the 700's same went with 10. The numbers went to like 1010.
Any help would be appreciated. I cleaned the probe bulb with a soft toothbrush as it says to in the unofficial user guide (very gently) but it looked pretty clean.