103.2 Sample measurement3.2.1 pH measurement Place the electrode in the sample. Press button-Read to start the pH measurement, appears on the display. is blinkingduring measurement. When the reading is stable, press button-Read to lock the reading, disappear, the pHvalue with the temperature display on the screen, you can record the measurement result. Ifyou want to do another measurement, press button-Read.3.2.2 mV measurement Press button-Mode to switch between pH measurement mode and mV measurementmode. Follow the same procedure as for pH measurement to perform an mV measurement.3.3 Temperature measurementFor better accuracy, we recommend to use temperature electrode. If a temperature electrode is used, ATC (Auto Temperature Compensation) and the sampletemperature are displayed. If the meter does not detect a temperature electrode, it automatically switches to the ManualTemperature Compensation mode and MTC appears. MTC temperature should be set (4.1).Note: STARTER 2100 accepts NTC 30 kΩ temperature sensor.4 Setup4.1 Set MTC temperaturePress button-Temp the MTC temperature value appears on the display. Then use button-up orbutton-down to increase or decrease the value to the temperature of your sample. Press button-Read to confirm the setting then return to the measurement screen; or press button-Exit to rejectthe setting and return to the measurement screen.The default MTC temperature value setting is 25 °C (77°F).Note: °C = 5/9 (°F -32)