KWS-201 Online NH4-N Ammonia Nitrogen Sensor
1.Introduction
The online ammonia nitrogen sensor does not require reagents, is green and pollution-free, and can be monitored online in real time. It is equipped with ammonium ion electrode, pH electrode and reference electrode (potassium ion is optional) as standard. In the process of measuring ammonia nitrogen in water, automatic pH and temperature compensation are performed to make the measured value more accurate. The sensor can be directly installed, which is more economical, environmentally friendly, convenient and fast than traditional ammonia nitrogen analyzers. It adopts RS485 output and supports Modbus for easy integration.
2.Features
- Digital sensor, RS-485 output, supports MODBUS;
- No reagents required, no pollution, more economical and environmentally friendly;
- Automatically compensate for pH and temperature in water;
- Ion electrode method, no electrolyte required, electrodes can be replaced separately, easy to maintain.
Note: Ion electrodes are only suitable for freshwater applications, not seawater.
3.Dimension
| Name | Ammonia Nitrogen sensor |
|---|---|
| Measuring range | 0-100mg/L (optional 0-1000mg/L) |
| Measurement accuracy | ±10% or ±0.5mg/L (whichever is greater) |
| Resolution | 0.01mg/L |
| pH range | 4-10pH |
| pH accuracy | ±0.1pH |
| pH resolution | 0.01 |
| Sensor size | φ36mm*265rmm (with protective cover) |
| Protection level | IP68 |
| Maximum depth | 10 meters underwater |
| Temperature range | 0-50℃ |
| Sensor interface | Support RS-485, MODBUS protocol |
| Assembly | NPT3/4 thread, immersion installation |
| Power consumption | 0.25W (recommended power supply: DC 9-24V, ≥1A) |
| Probe cable length | 10 meters (default), customizable |
| Calibration | 1-point or 2-point calibration |
| Casing | POM+316L (customizable titanium alloy) |
| Note: The above technical parameters are all data under laboratory standard solution environment; sensor life and maintenance and calibration frequency are related to actual on-site conditions. | |
KWS-200 NH₄-N Ammonia Nitrogen Sensor Calibration Tutorial | Step-by-Step Modbus Guide
