Aquasafe WSL50 Pro, 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.
mV