Operating Manual of Ammonia Nitrogen Sensor
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You can directly select the input value in the correction parameter box and click “factor” and “deviation”
to calibrate the factor and deviation value.
On the premise of selecting potassium ions
，
in the frame, you can also choose the compensation mode “no
compensation”, “manual compensation”, “auto compensation”. According to the water source selection
measured by the buyer, when the potassium ion concentration in the water is stable, manual compensation
is selected, and the potassium ion concentration can be directly input. When the potassium ion
concentration is unstable and changes frequently, select automatic compensation. (But need with the K+
sensor, which is optional sensor).
5.6 Potassium Ion Sensor Calibration
From the Select menu in the calibration menu, go to the “Electrode” calibration program and display the
following interface. Select “Electrode 2” in the current state “Electrode” to start calibration.
The Potassium Ion sensor is calibrated with ammonia Potassium Ion solution for two to five point
calibration. The factory requires 4-point calibration. The customer can base on the situation on the site to
calibrate with two to four point calibration method. The calibration points and current calibration points
can be selected in the calibration box.
1. Generally, two-point calibration can be selected when measuring water below 50mg/L: 1mg/L and
10mg/L
2. Generally, the following calibration methods can be selected when measuring water over 50mg/L:
1
）
Two-point Calibration: 1mg/L or 10mg/L (or 25mg/L or 100mg/L)
2
）
Three-point Calibration: 1mg/L
、
5mg/L (or 10mg/L or 25mg/L)
、
100mg/L (or 200mg/L)
3
）
Four-point Calibration: 1mg/L
、
25mg/L
、
200mg/L
、
500mg/L or 1000mg/L
4
）
Five-point Calibration: 1mg/L
、
25mg/L
、
200mg/L
、
500mg/L and 1000mg/L
3. But when the water condition is stable, the two-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 1
mg / L and 5 mg / L can be selected;
When the concentration range of the measured water is generally between 5 and 10, then 5 mg / L and 10
mg / L can be selected;