Integrated Multi-parameter Sensor Operation manual
53
When the concentration range of the measured water is generally between 0 and 200, then
0.02mg/L
、
10
mg / L and
100 mg
/ L can be selected;
When the concentration range of the measured water is generally between 200 and 1000, then
0.02mg/L
、
10 mg / L and 200 mg / L can be selected;
3
、
If higher accuracy is required,
4 or 5 points
calibration is recommended in the measuring for the water.
For instance, the points of
0.02mg/L
、
1 mg/L, 10mg/L, and 100mg/L can be used
；
For instance, the points of
0.02mg/L
、
1 mg/L, 10mg/L, and 200mg/L can be used
；
For instance, the points of
0.02mg/L
、
1 mg/L, 10mg/L , 100mg/L, and 1000mg/L can be used
；
For instance, the points of
0.02mg/L
、
1 mg/L, 10mg/L, 200mg/L, and 1000mg/L can be used
；
Usually, choose the points of 1 mg/L and 10mg/L of chloride ion, and add some other points can obtain
better accuracy.
The specific calibration steps are as follows:
The following is an example of three-point calibration when measuring water below 1000mg/L:
Pour the standard solution from point 1 (generally recommended 0.02 mg/L) into a clean, dry or
pre-rinsed calibration container. Carefully immerse the probe at the end of the main unit in the solution.
Please ensure that the front end of the Chloride Ion Sensor is immersed in the solution at least 2 cm and
enter the standard value. After the value in the software interface is stable, click “1 point Calibration”.
Rinse and dry the sensor and calibration container with water after completion.