Online COD BOD Analyzer Blue Green Algae Analyzer for Water Supply Series

Product Overview

- Model/name: BODG-3063 Online BOD Analyzer (part of the Online COD/BOD / Blue‑Green Algae Analyzer for Water‑Supply series by BOQU).

- Purpose: continuous online measurement of Biochemical Oxygen Demand (BOD) to assess organic pollution and dissolved‑oxygen demand in water.

- Measurement principle: dichromate oxidation (sample mixed with potassium dichromate, mercury sulfate, silver sulfate and heated to ~165 °C); the color change of the oxidized solution is measured and converted to a BOD value.

- Typical users: industry, power plants, agriculture, medicine, food processing, drinking‑water factories (QS/HACCP), research labs and environmental protection agencies.

Product Features

- Measuring range: 10–1500 mg/L BOD (higher ranges can be customized).

- Performance: accuracy ≤±10% (≥50 mg/L) or ≤±5 mg/L (

- Timing/configuration: minimum measurement cycle ~50 minutes; digestion time adjustable 5–120 minutes; sampling interval adjustable 55–9,999 minutes; calibration period adjustable 1–99 days.

- Outputs and interface: two 4–20 mA outputs, RS232/RS485 communications, touchscreen display, and data retention on alarms or power loss.

- Reliability/automation: automatic purge of residual reagents after reset/power‑on and automatic resume; monthly routine maintenance (~30 minutes).

- Installation/environment: indoor use recommended; operating temperature +5–28 °C, humidity ≤90% (no condensation); AC220V power; compact cabinet (H1450 × W510 × L450 mm).

Product Value

- Real‑time, automated BOD monitoring enables early detection of organic pollution and rapid operational response.

- Supports regulatory compliance and quality assurance (e.g., QS, HACCP) for drinking water and food production.

- Reduces reliance on manual lab tests, saving time and labor while improving data continuity and process control.

- Facilitates environmental protection, process optimization, and risk reduction in wastewater and water‑supply systems.

Product Advantages

- Proven analytical chemistry (dichromate digestion/colorimetric readout) delivers quantitative, reliable results.

- Flexible configuration (range, digestion time, sampling and calibration intervals) adapts to various water types and monitoring needs.

- Integration‑ready with analog and serial outputs for SCADA/DCS and remote monitoring.

- Built‑in automatic reagent purge and restart behavior lowers downtime and maintenance complexity.

- Manufactured under strict quality control with strong after‑sales support from Shanghai Boqu Instrument; attractive product design and commitment to sustainable practices.

Application Scenarios

- Drinking water treatment plants and food factories for process control and compliance (QS/HACCP).

- Industrial effluent monitoring (chemical, power, food, pharmaceutical, agriculture).

- Wastewater treatment plants for process optimization and discharge monitoring.

- Environmental monitoring and research institutions tracking river, lake or reservoir organic pollution.

- Combined water‑supply series deployments alongside blue‑green algae analyzers for comprehensive water quality management.