Expert in Water Quality Measurement and Water Treatment Project Since 2007
Product Overview
Note: the supplied product description actually describes a digital ammonia-nitrogen (NH4-N) sensor (BH-485-NH) based on an ion-selective electrode, not a COD sensor. Below is a concise five-point summary based on the provided ammonia sensor details.
Product Features
1) Product overview
Product Value
- Digital ammonia-nitrogen (NH4-N) sensor (BH-485-NH) using an ion-selective electrode method.
Product Advantages
- Integrated probe optionally includes ammonium ion-selective electrode, potassium ion sensor, pH electrode and temperature sensor for multi-parameter measurement and mutual compensation.
Application Scenarios
- Designed for robust, long-term in-situ monitoring with RS485 (Modbus RTU) digital output and optional 4–20 mA.
2) Product features
- Direct detection of ammonium ions with a pH reference electrode for stability.
- Potassium compensation (optional K+ sensor) to reduce K+ interference in NH4-N readings.
- Multi-parameter outputs: NH4-N (0.1–1000 mg/L), optional K+ (0.5–1000 mg/L), pH (5–10), temperature.
- Accuracy: NH4-N ±5% or ±0.2 mg/L (whichever greater); temperature ±0.1°C; pH ±0.1 pH.
- Resolution: NH4-N 0.01 mg/L; temp 0.1°C; pH 0.01.
- Communication: RS485 Modbus RTU; optional 4–20 mA output.
- Rugged hardware: IP68/NEMA6P protection, standard 10 m cable (extendable to 100 m), operating 0–45°C, DC 12V power.
3) Product value
- Provides accurate, real-time ammonia-nitrogen monitoring to support process control and regulatory compliance.
- Multi-parameter compensation (K+, pH, temperature) improves measurement reliability and reduces false readings.
- Digital output and optional analog loop make it simple to integrate with controllers, SCADA and aeration control systems.
- Durable, in-situ probe lowers maintenance and sampling costs versus frequent laboratory testing.
4) Product advantages
- Integrated multi-sensor probe enables built-in compensation and simultaneous measurement (NH4-N, K+, pH, temp).
- High stability and anti-interference design for long-term field deployment.
- Flexible communication: native RS485 Modbus RTU plus optional 4–20 mA for broad compatibility.
- Robust construction (IP68) and extended cable options for versatile installation.
- Backed by customer support and established export/sales network.
5) Application scenarios
- Sewage and wastewater treatment (nitrification tanks, aeration control, process monitoring).
- Industrial effluent monitoring and process control in chemical, fertilizer or refrigeration industries.
- Environmental monitoring of rivers, streams and other surface waters.
- Drinking water quality monitoring where ammonium levels are critical.
- Any application requiring continuous, real-time ammonia-nitrogen data for process optimization or compliance.