Trace2O AquaSafe WSL25 Plus, Instruction Manual

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Temperature Calibration:
During the measurement, if the temperature reading displayed differs from that of an accurate
thermometer, you need to calibrate the unit.
1. Press and hold the CAL key for 3 seconds to enter setup menu.
2. Press ENTER key until unit shows the “
o
C/CAL” or “
o
F/CAL”.
3. Press CAL key to enter the temperature calibration mode.
4. Press CAL key again to set temperature value (Resolution: 0.5
o
C).
5. Press ENTER key to confirm, the display shows next option.
6. Press ON/OFF key, the unit returns to measurement mode. Calibration is completed.
pH Measurement:
Rinse the pH electrode thoroughly with distilled water. Immerse the electrode into the sample solution,
stir the solution gently. Wait for the reading to stabilise; record the measured value as displayed.
Enter