Expert in Water Quality Measurement and Water Treatment Project Since 2007
Product Overview
1) Product overview
Product Features
- BOQU DOG-2082X Dissolved Oxygen Analyser — an industrial-grade dissolved oxygen (DO) meter from Shanghai Boqu Instrument Co., Ltd.
Product Value
- Measures DO in %, ppm (mg/L), ppb (µg/L) and temperature; built for continuous online monitoring with panel/wall/pipe mounting options.
Product Advantages
- Rugged, IP65-rated enclosure and wide power input (90–260 VAC).
Application Scenarios
2) Product features
- Measurement ranges: 0.0–200.0% ; 0.00–20.00 ppm ; 0.0–200.0 ppb. Temp. range: -10.0 to +130.0 °C (compensation Pt1000/NTC22K).
- High resolution and accuracy for DO and temperature; electrode current range -2 to +400 nA with ±0.005 nA electrode current accuracy.
- Outputs & control: isolated 4–20 mA DO output (max 500 Ω), two isolated 4–20 mA temp outputs, RS485 Modbus RTU, three relays (multi-function), relay delay and cleaning control.
- Built-in datalogger (up to 500,000 records), backlit dot-matrix display, multilingual UI (EN/Traditional/Simplified Chinese).
- Additional compensation: pressure and salinity ranges supported; cleaning timing and alarm settings.
3) Product value
- Provides accurate, continuous DO and temperature data for process control and regulatory compliance.
- Enables real-time control (via 4–20 mA and relay outputs), remote monitoring (Modbus RTU) and long-term record keeping (large datalogger).
- Robust design reduces downtime and maintenance, delivering reliable measurements in industrial and environmental settings.
4) Product advantages
- Wide measurement span (%, ppm, ppb) and precise electrode current sensing for sensitive applications.
- Multiple isolated outputs and communication options for integration into control systems and SCADA.
- Large onboard memory and configurable alarms/cleaning routines improve operational automation.
- IP65 protection, flexible mounting (panel/wall/pipe) and low power consumption (
- Supported by BOQU’s manufacturing and customer service infrastructure.
5) Application scenarios
- Wastewater treatment (aeration control, effluent monitoring)
- Drinking water and environmental monitoring stations
- Fermentation, biotech and laboratory processes requiring precise DO control
- Food & beverage production and process hygiene control
- Aquaculture and other industrial processes where dissolved oxygen must be monitored and controlled