Press any button • Replace new batteries, observing the polarity. to return to • Close the battery compartment cap. measurement mode. Hanna Instruments reserves the right to modify the design, construction, or appearance of its products without advance notice. sec. QR99164 10/15...
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pH Calibration † For two-point calibration using pH 7 buffer go to procedure A For one-point calibration using pH 4, pH 7, or pH 10 buffer go to procedure B sec. † The probe tip should be rinsed with purified water (reverse osmosis, distilled, or deionized) before and after placing in any solution (buffer, storage or sample).