POM Material Ammonia Nitrogen Digital Sensor Automatically Compensate For Potassium PH Temperature In Water

KWS-200 Online NH4-N Ammonia Nitrogen Sensor

Introduction
Kacise introduces an online ammonia nitrogen sensor that requires no reagents, is green and non-polluting, and can be monitored online in real time. Integrated ammonium, potassium (optional), pH and reference electrodes automatically compensate for potassium (optional), pH and temperature in water.It can be directly put into installation, which is more economical, environmentally friendly and convenient than traditional ammonia nitrogen analyzer. The sensor has a self-cleaning brush that prevents microbial adhesion, resulting in longer maintenance intervals and excellent reliability. It adopts RS485 output and supports Modbus for easy integration.

Feature
Digital sensor, RS-485 output, support MODBUS
No reagents, no pollution, more economical and environmentally friendly
Automatically compensates for pH and temperature in water
Self-cleaning brush to prevent microbial adhesion and longer maintenance intervals

Technical Specifications

Dimension

Maintenance Methods and FAQ

Maintenance Schedule and Method

1. Maintenance Schedule
It is recommended to periodically calibrate or clean the sensor surface according to the actual application scenario.

2. Maintenance Methods

Sensor maintenance
1) Sensor outer surface: Clean the outer surface of the sensor with tap water. If there is still debris, wipe it with a soft, damp cloth.
2) Check the cable of the sensor: the cable should not be tightened during normal operation, otherwise the cable inside the cable will be broken, causing the sensor to not work properly.
3) Sensor storage: When the sensor is not in use, the black plastic cap should be fastened to check whether the sponge inside is wet. If it is not wet enough, please add 3mol/L potassium chloride solution and let the electrode be placed with potassium chloride. Preserved in the solution.
 

The Matters Needing Attention

The probe contains sensitive optical and electronic components. Make sure the probe is not subject to severe mechanical shock. Damage to the sensor due to impact or man-made will not be covered by the warranty. The sensor inlet water is not covered by the replacement of the pH electrode.
 

FAQ

Wiring

1. ammonia nitrogen probe size

    64x251 mm (Φ xL)
2. power information
    The power supply must be DC 12V +/-5%, current <50mA
3. cable information
    4 wire AWG-24 or AWG-26 shielding wire. OD=5mm

Red - power supply (VCC)
White - 485 data _B (485_B)
Green --- 485 data _A (485_A)
Black --- ground line (GND)

Procedure to get NH3_N value

Figure 91:Flow chart to get NH3_N measurement

Start brush active – make the brush active once power on , then the brush will work at the set interval time.
Get temperature and NH3_N values – Get measurement results including temperature (C) and NH3_N (mg/L) after 20 seconds of brush active.
(mg/L) after 20 seconds of brush active.
Note: Please pay attention to highlighted portion (red) in the flow chart above. It’s highly recommended that customers get an average NH3_N results after 10 consecutive measurements, then perform display or other process.