When you set up the Ph probe are you supposed to have temperature compenstaion on or off. I set mine on. if i need to set it to off do i have to recalibrate? also what is the difference by having it on or off?
Most just leave temperature compensation off, as the temperature variation in a typically reef is very small and has a negligible effect on the pH. If you don't recalibrate the pH reading will probably be off by about .01.
A pH probes raw reading is affected by temperature. Turning on temp. comp. compensates for the pH probes reading cause by high or low temperatures.
Hi Curt
I tried calibrating a lab grade probe on my ac jr. using the supplied buffers. Infact I also used them to also calibrate my Milwaukee 101 with new probe. After 3 attempts the Neptune reads 7.88 and the other reads 8.18. I treied with comp on and comp off. I also tried using other NIST buffers that I have but all have the same result . Low PH .
a
Any ideas?? Is there a compensation such as the temp offset??
Your name
Who you purchase the probe from.
When purchased.
The complete product code (found on the white band on the cord of the probe).
What type of calibration solution you using.
The raw readings for the 7.0 and 10.0 calibration solution (found at the bottom of the display during calibration).
The controller's reading of the 7.0 and 10.0 calibration solutions after calibration (use the run display).
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