Nitrate Nitrogen Online Analyzer

Product Description
Application
Product Features
Specification Parameters
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【Product Description】

The BWA-NO3N Nitrate Nitrogen Water Quality Auto Analyzer uses hydrazine sulfate to digest samples, converting all nitrate ions into nitrite ions. In an acidic medium, nitrite ions react with NED to form a red-colored complex.

【Application】

Environmental monitoring for surface water, domestic sewage, industrial wastewater, and similar scenarios.

【Product Features】

Compact, integrated design for easy installation and integration into diverse applications.

User-friendly touchscreen operation requiring minimal training; daily maintenance completes in 5 minutes.

Independent wastewater/liquid separation channels with verification, supporting dynamic control technical requirements.

Built-in 220V AC pump control interface (no external relay required).

Door opening time and count logging functionality.

Leak detection, optional reagent management, and reagent refrigeration capabilities.

Automatic alarm output for abnormal or (exceeding standard) measurement results.

Timed cleaning and measurement functions; automatic post-measurement cleaning of processing units, pipelines, valves, etc.

Multiple signal outputs: 4-20 mA, RS485/RJ45.

Manual, timed, and automatic calibration modes, including external trigger calibration; configurable calibration intervals.

Self-diagnostic functions, power failure protection, and automatic recovery upon power restoration.

Robust data processing and storage, retaining raw data and operation logs for over 1 year.

【Specification Parameters】

Parameter

Technical Specifications

Measurement Method

Diazo Coupling Spectrophotometry

Measurement Range

0–2/10/20/50 mg/L (customizable)

Indicated Error

±10%

Zero Drift

±5%

Span Drift

±5%

MTBF

≥720 h/occurrence

Repeatability

±3%

Real Sample Comparison

±10%

Minimum Maintenance Cycle

≥168 h/occurrence

Measurement Time

≤40 minutes

Output

Communication: 1× RS232, 1× RS485 (MODBUS protocol)

Network: RJ45

Digital Outputs: 2 channels

Digital Inputs: 1 channel

Sampling Pump Relay: 1× (220V control output, pump power <1100W)

Analog Output: 1× (4-20 mA)

Dimensions

380 × 310 × 550 mm (W × D × H)

Weight

16 kg


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