Trace2O HydroCheck HC1000, Instruction Manual

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3.1 Power On/Off
● To turn the meter on, press the ON/OFF key.
● To turn the meter off, press and hold the ON/OFF key for 3 seconds,
● The meter will turn off automatically if there are no key presses within a specified time
period. To disable the auto-off function, go to the Setup Menu section.
3.2 pH Measurement
1. Press the MODE key until the display shows the indicator.
2. Rinse the pH electrode with distilled water to clean.
3. Immerse the electrode in the sample solution, and stir the solution gently.
4. Wait for the reading to stabilise, and record the value shown on the display.
3.3 ORP Measurement
The HC1000 has two millivolt measurement modes.
ABSOLUTE MILLIVOLT MODE:
● Press the MODE key until the display shows the measurement unit “mV”; the meter enters
absolute millivolt measurement mode.
RELATIVE MILLIVOLT MODE:
● Press the MODE key until the display shows the
indicator; the meter enters relative
millivolt measurement mode.
Select one of the above modes. Immerse the electrode in the sample solution, and stir the
solution gently. Wait for the reading to stabilise, and record the value shown on the display.
mV