Overview
Nitrite Nitrogen Analyzer LT-NNA801 NO3 features a high-precision UV sensor for accurate real-time measurement of 0–50 mg/L nitrite nitrogen. It provides continuous, chemical-free monitoring with a durable immersion probe and automatic measurement, ensuring stable performance even in aeration or anaerobic tanks. Compliant with environmental water quality standards, it is ideal for wastewater treatment, industrial process water, surface water monitoring, and environmental protection applications.
Technical Specifications
| Measuring Range | Concentration: 0.4–100 mg/L (depending on electrode range, pH 2.5–11) Temperature: 0–50 °C | Resolution | Concentration: 0.01 / 0.1 / 1 mg/L Temperature: 0.1 °C |
|---|---|---|---|
| Accuracy / Basic Error | Concentration: ±5% Temperature: ±0.3 °C | Current Output | 2-channel: 0/4–20 mA or 20–4 mA (load <500 Ω) |
| Communication | RS485 MODBUS RTU | Relay Control | 3 sets, 5 A at 250 VAC or 30 VDC |
| Power Supply | 85–265 VAC ±10%, 50 Hz, ≤3 W 9–36 VDC, ≤3 W | Dimensions | 144 × 144 × 118 mm |
| Installation Methods | Panel, wall, or pipe mount Panel cutout: 137 × 137 mm | Protection Rating | IP65 |
| Instrument Weight | 0.8 kg | Operating Environment | Temperature: -10 to 60 °C Relative Humidity: ≤90% No strong magnetic interference except geomagnetic field |
Features & Applications
Key Features
Large color LCD with smart menu.
Data logging and curve display.
Auto calibration and temperature compensation.
Stable differential signal measurement.
3 relay switches with high/low limit control.
4–20 mA & RS485 outputs.
Simultaneous display of concentration, temperature, current.
Password-protected operation.
Applications
Product Details
Nitrite Nitrogen Analyzer LT-NNA802
Standard Accessories:
Nitrate Sensor (NO3):
NO₃ Ion Selective Electrode (ISE) sensor delivers fast, accurate nitrate monitoring (0.1–10,000 ppm) with shock-proof, chemical-resistant design. Direct, continuous measurement requires no sample prep, ideal for wastewater, industrial, and environmental water monitoring.
Features:
PVC nitrate ISE electrodes, fast and accurate.
Anti-blocking, anti-pollution PTFE interface.
Single-chip design, stable zero-point potential.
Ideal for wastewater in semiconductor, photovoltaic, and metallurgy industries.
Applications:
Ideal for wastewater monitoring, industrial effluent control, and environmental water analysis, especially in semiconductor, photovoltaic, and metallurgy industries.
Specifications:
| pH Range | 2.5–11 pH |
| Measuring Material | PVC Film |
| Housing Material | PP |
| Waterproof Rating | IP68 |
| Measurement Range | 0.4–62,000 mg/L (customizable) |
| Accuracy | ±2.5% |
| Pressure Range | ≤0.1 MPa |
| Temperature Compensation | NTC10K |
| Temperature Range | 0–50 °C |
| Calibration | Sample calibration, standard liquid calibration |
| Connection Method | 4-core cable |
| Cable Length | Standard 10 m |
| Mounting Thread | NPT 3/4” |
| Applications | General use, rivers, lakes, drinking water, environmental protection |
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