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Calibrating the pHep 4 and pHep 5 pH testers.
HannaInc • 14,521 views
Hi, once i enter into the calibration mode, after showing 7.0 USE for few second, it directly appear as 10.0 REC. Since i would like to calibrate for 4.0 instead of 10.0, may i know how to make it to show 4.0 REC instead of 10.0 REC?
Hi, once i enter into the calibration mode, after showing 7.0 USE for few second, it directly appear as 10.0 REC. Since i would like to calibrate for 4.0 instead of 10.0, may i know how to make it to show 4.0 REC instead of 10.0 REC?