Aquasafe WSL50 Pro, Instruction Manual

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3.6 Dissolved Oxygen Measurement
The HC1000 is suitable for measuring dissolved oxygen in water, wastewater,
brine and other liquids. If the intended application is to measure seawater or
other water containing large amounts of salt, please set the salinity coefficient
before use.
Some gases and vapours such as chloride, sulfur dioxide, hydrogen sulfide,
ammonia, carbon dioxide and iodine can permeate the membrane via
diffusion, and as such their presence will influence the measurement of
dissolved oxygen.
Clean samples are preferred. If the sample contains solvent, grease, sulfide
and algae, the membrane on the probe may be blocked, damaged or eroded.
1. Press MODE key until the meter shows indicator.
2. Connecting the dissolved oxygen probe to meter, wait for 15 minutes to
polarise the sensor.
3. If necessary, to set the atmospheric pressure and salinity coefficient in the
setup menu (Refer to “SETUP MENU” section).
4. Submerse probe in the sample solution, make sure the temperature sensor
on the probe is fully immersed.
5. Stir the solution gently, wait for the reading to
stabilise, record the measured value on the display.