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Dissolved Oxygen Measurement
EC910 portable multiparameter water quality metere is suitable for measuring the water, wastewater, brine and other liquids. If you use meter to
measure seawater or other water containing large amounts of salt, please set the salinity coefficient before use.
Some gas and steam such as chloride, sulfur dioxide, sulfureted hydrogen, ammonium, carbon dioxide and iodin can permeate the membrane via diffusion. So
their existence will influence the measurement of dissolved oxygen.
If the sample contains solvent, grease, sulfide and alga, the membrane on the probe will 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 polarize the sensor.
3.
If necessary, to set the barometric 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 probe gently, wait for the reading to stabilize, record the measured value on the display.
Hold Function
The meter contains two data hold modes. When the Auto-Hold function is enabled, the meter will automatically sense a stable endpoint reading and freeze it,
“HOLD” indicator appears on the display. If the Auto-Hold function is disabled, press
key, the meter will immediately freeze currently displayed value.
Press the key again to resume measuring.
Temperature Sensor
EC910 Portable Multiparameter Water Quality Meter
