Online Wastewater Total Nitrogen Analyzer with Touchscreen Display - 0-300 mg/L Range, 45 Min Cycle
Online Wastewater Total Nitrogen Analyzer utilizing potassium persulfate oxidation-UV spectrophotometric method for precise measurement of total nitrogen concentrations in wastewater treatment applications.
| Parameter | Specification |
|---|---|
| Measurement Method | Potassium persulfate oxidation UV spectrophotometry |
| Measurement Range | 0-300 mg/L |
| Accuracy | ≤±10% |
| Repeatability | ≤±5% |
| Measurement Cycle | Minimum 45 minutes (color development: 5-30 min adjustable) |
| Sampling Cycle | 10-9999 min adjustable or on-the-hour mode |
| Calibration Cycle | 1-99 days adjustable |
| Maintenance Cycle | ≥168 hours (each maintenance ~1 hour) |
| Reagent Consumption | <0.50 CNY per sample |
| Output Interfaces | RS-232, 4mA-20mA, RS-485 |
| Environmental Requirements | 5-40°C temperature, 45%-85% humidity |
| Power Supply | AC 220±10% V, 50±1% Hz, 5A |
| Dimensions | 1500 × 500 × 450 mm (H×W×D) |
Enables flexible reagent sampling timing and diverse channel configurations with minimized dead volume for easy maintenance and extended service life.
Visual photoelectric system ensures precise reagent measurement with 0.7 mL per dose, eliminating errors from peristaltic pump tube wear.
Peristaltic pump with negative pressure suction creates air buffer zone between reagents and pump tube to prevent corrosion.
Operates under high-temperature and high-pressure conditions to accelerate reactions while eliminating corrosion risks from volatile gases.
Imported modified PTFE transparent tubing with inner diameter >1.5 mm minimizes clogging from particulate matter.
- Data retention during abnormal alarms or power outages
- Touchscreen display and command input interface
- Automatic discharge of residual reactants and resumption of operation after power restoration or system reset
Under alkaline medium conditions at 120-125°C, potassium persulfate oxidizes ammonia nitrogen, nitrite nitrogen, and organic nitrogen compounds to nitrate. Total nitrogen content is determined using ultraviolet spectrophotometry at wavelengths of 220 nm and 275 nm, calculated as A = A220 − 2A275.
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