4FUNCTIONAL DESCRIPTION1) 8-pin DIN connector for probe2) Liquid Crystal Display3) pH range selection key4) μS/cm (EC) range selection key5) EC/TDS calibration knob6) pH offset calibration knob7) ppm (TDS) selection key8) °C (Temperature) selection key, for HI 9812-5 only9) ON/OFF key

PRELIMINARY EXAMINATION

FUNCTIONAL DESCRIPTION

SPECIFICATIONS

initial preparation

pH CALIBRATION

pH VALUES AT VARIOUS TEMPERATURES

EC/TDS CALIBRATION

BATTERY REPLACEMENT

periodic maintenance

ACCESSORIES

CE DECLARATION OF CONFORMITY

Hanna Instruments HI 9812 Instruction Manual

HI 9811

HI 9812

HI 9812-5


Contents Table Of Contents PRELIMINARY EXAMINATION FUNCTIONAL DESCRIPTION SPECIFICATIONS initial preparation pH CALIBRATION pH VALUES AT VARIOUS TEMPERATURES EC/TDS CALIBRATION BATTERY REPLACEMENT periodic maintenance ACCESSORIES CE DECLARATION OF CONFORMITY	4FUNCTIONAL DESCRIPTION1) 8-pin DIN connector for probe2) Liquid Crystal Display3) pH range selection key4) μS/cm (EC) range selection key5) EC/TDS calibration knob6) pH offset calibration knob7) ppm (TDS) selection key8) °C (Temperature) selection key, for HI 9812-5 only9) ON/OFF key Previous Next / 16