MS-301 Multi parameter Water Quality Sensor
Web:www.boquinstrument.com
calibration container. Carefully immerse the Sensor at the end of the main unit in the solution. Please
ensure that the front end of the Nitrate ion Sensor is immersed in the solution at least 2 cm and enter the
standard value. When the value in the software interface is stable, click “2 point Calibration”. Rinse and
dry the sensor and calibration container with water after completion.
Pour the standard solution at point 3 (generally recommended 10 mg/L) into a clean, dry or pre-rinsed
calibration container. Carefully immerse the Sensor at the end of the main unit in the solution. Please
ensure that the front end of the Nitrate ion Sensor is immersed in the solution at least 2 cm and enter the
standard value. When the value in the software interface is stable, click “3 point Calibration”. Rinse and
dry the sensor and calibration container with water after completion.
You can directly select the input value in the correction parameter box and click “factor” and “deviation”
to calibrate the factor and deviation value.
6.1.9.3 Fluorine Ion Sensor Calibration
See section 6.1.9 for instructions before calibration. Take an option from the calibration menu to enter the
"electrode" calibration program, and the interface is showed by diagram as below. Then, the operation of
calibration can be prepared to start. Types of ion electrodes should be pre-configured, such as that showed
in the square frame.
The Fluorine ion sensor is calibrated with Fluorine ion standard solution for three to five point calibration.
The factory requires 4-point calibration. The customer can base on the situation on the site to calibrate
with three to five point calibration method. The calibration points and current calibration points can be
selected in the calibration box.
1. Generally, three-point calibration can be selected when measuring water below 50mg/L:
0.02mg/L,1mg/L and 10mg/L
2. Generally, the following calibration methods can be selected when measuring water over 50mg/L:
1)Three-point Calibration: 0.02mg/L,1mg/L or 10mg/L (or 25mg/L or 100mg/L)
2)Four -point Calibration: 0.02mg/L,1mg/L,5mg/L (or 10mg/L or 25mg/L),100mg/L (or 200mg/L)
3)Five -point Calibration: 0.02mg/L,1mg/L,25mg/L,200mg/L,500mg/L or 1000mg/L
3. But when the water condition is stable, the three-point calibration can be performed according to the
concentration range of the water body, and it can achieve a result with better accuracy.
For example, when the concentration range of the measured water is generally between 0.5 and 2, then