|Measure Range||0~20 mg/L|
|Measure Resolution||0.01 mg/L|
|Measure Accuracy||±0.1 mg/L|
|Response Time||< 45s|
|Electrode Dimension||D34mm L205mm|
What is a Dissolved Oxygen Sensor?
The permeable membrane allows oxygen from the sample water to diffuse into the sensor, where it is reduced at the cathode. This chemical reaction produces an electrical signal, which travels from the cathode to the anode and then into the dissolved oxygen measuring instrument.
How does a Dissolved Oxygen Sensor work?
In an electrochemical DO sensor, dissolved oxygen diffuses from the sample across an oxygen permeable membrane and into the sensor. Once inside the sensor, the oxygen undergoes a chemical reduction reaction, which produces an electrical signal. This signal can be read by a dissolved oxygen instrument.
How to measure Optical Dissolved Oxygen Sensor?
Measuring dissolved oxygen in water. DO is measured using a dissolved oxygen meter (or DO meter). The best method is to take the measurement in the field at the same time each day, because DO concentrations can vary throughout a 24 hour period.
How often does a optical dissolved oxygen sensor need to be calibrated?
A – As a general rule, we recommend for dissolved oxygen probe maintenance that the membrane be changed every 2-8 weeks.
How to calibrate a Dissolved Oxygen Sensor?
First Calibration Point Remove the probe from the water, blot dry, and place the tip of the probe into the Sodium Sulfite Calibration Solution. The displayed voltage should begin to drop. When the displayed voltage reading stabilizes, enter 0 (the known dissolved oxygen value in mg/L) in the edit field.