How to use Reed 8689 Digital PH Pen:
To prevent delayed readings or to make the electrode wet if the pH electrode dries out, soak the electrode in water for at least 30 min before using. Remove the probe cover from meter and rotate the transparent cap to expose the electrode .Dip the electrode into the test solution. Press the Power button to power on the meter. To confirm that the meter is in measurement mode, the LCD screen will flash “pH” symbol. The digital pH pen will start measuring and the LCD will then display the measured pH and temperature. “pH” stop flashing when the reading is stable.
Data Hold During the pH measurements you can freeze the current reading by pressing the “HOLD” button. “HLD” will appear on the LCD screen. Press the “HOLD” button again to exit Hold Mode.
REED 8689 Specifications
- pH Range: 0.00 to 14.00 pH
- Resolution: 0.01 pH
- Accuracy: ±0.05 pH
- Temp. Range: 0 to 60.0°C
- Resolution: 0.1°C
- Accuracy: ±0.5°C
REED General Specifications
- Power Supply: 4 LR44 button cell batteries
- Dimensions: 176 x 39 x 39mm
- Weight: 110g
Dip the Reed 8689 electrode into the test solution. Press the Power button to power on the meter The LCD screen will flash “pH” when the meter is in measurement mode. The LCD will then display the measured pH and temperature. “pH” stop flashing when the reading is stable. Once finished taking measurements, press the SET button, clean the electrode, put the transparent electrode cap and meter cover back on