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#1
05-09-2005, 04:22 PM
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Just put your probe in a known solution and check the reading versus the solution. If it is out at all most have a calibration pot to adjust until you get the reading you are looking for.
Going from memory I test it at 4 and 9, but that kent buffer for the tank is 8.2 and that should be close enough for the upper end test. Robert
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