Description
The Lihero LFS-2002(NH₃-N) Online Ammonia Nitrogen Water Quality Analyzer is based on the colorimetric principle. It automatically completes sampling, reagent dosing, mixing, and colorimetric detection to provide real-time monitoring of NH₃-N concentration in water.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LFS-2002(NH₃-N) |
| Measuring Method | Colorimetric method (Nesslerization or equivalent color reagent) |
| Measuring Range | 0 – 30 mg/L (extendable upon request) |
| Detection Limit | 0.05 mg/L |
| Measuring Period | Adjustable, typically 15–60 minutes per cycle |
| Accuracy | ±5% of reading or ±0.05 mg/L (whichever is greater) |
| Repeatability | ≤3% |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Power Consumption | 100 W |
| Ambient Temperature | 5 – 35 °C |
| Ambient Humidity | ≤85% RH (non-condensing) |
| Display | LCD color screen |
| Calibration | Zero calibration, span calibration |
| Data Output | RS485 / Modbus (optional) |
| Cleaning System | Automatic cleaning of colorimetric cell and tubing |
| Sample Inlet | Continuous flow or peristaltic pump feeding |
| Dimensions | Approx. 600 × 450 × 300 mm (H×W×D) (depending on model) |
| Weight | About 25–30 kg |
| Manufacturer | Lihero Technology (Hunan) Co., Ltd. |
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Applications: Wastewater treatment plants, tap water plants, surface water, and industrial discharge monitoring.
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Features:
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High automation with programmable and cyclic measurement
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Accurate colorimetric detection for reliable data
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Built-in cleaning and calibration routines reduce maintenance
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LCD color display, user-friendly operation
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Maintenance: Supports zero calibration and span calibration. Regular replacement of pump tubing and light source is recommended for long-term stable operation









