Portable Dissolved Oxygen Meter PH-821 Biobase

Portable Dissolved Oxygen Meter PH-821 Biobase

The PH-821 Portable Dissolved Oxygen Meter by Biobase is an upgraded handheld device designed for precise and reliable measurement of dissolved oxygen (DO) in various field conditions. It features advanced compensation functions, customizable settings, large data storage, and USB connectivity. This model is ideal for professionals who require dependable performance in environmental monitoring, aquaculture, or industrial applications.

Features

1. 1 or 2-point calibration using air-saturated water or zero oxygen solution.

2. Manual salinity and barometric pressure compensation for accurate field measurements.

3. Automatic temperature compensation ensures stable results across a wide temperature range.

4. Auto-Read function detects stable readings and locks them automatically.

5. Auto-power off setting with 10, 20, or 30-minute options conserves battery life.

6. Setup menu includes options for calibration points, resolution, temperature unit, concentration unit, stability criteria, and time/date.

7. Reset function restores factory default settings.

8. Internal memory stores up to 500 data sets for future recall.

9. USB communication interface for data transfer or DC power connection.

Applications

1. Environmental water quality testing in rivers, lakes, reservoirs, and wetlands.

2. DO monitoring in aquaculture systems for fish and shrimp farming.

3. On-site wastewater treatment inspections and compliance checks.

4. Educational and industrial portable laboratory testing.

Technical Specifications

1. DO measurement range: 0.00 to 20.00 mg/L, 0.0 to 200.0% saturation

2. DO accuracy: ±0.2 mg/L, ±2.0%

3. DO resolution: 0.01 mg/L, 0.1%

4. Calibration points: 1 or 2 points

5. Temperature compensation: 0 to 50°C / 32 to 122°F, automatic

6. Barometric pressure correction: 60.0 to 112.5 kPa / 450 to 850 mmHg, manual

7. Salinity correction: 0.0 to 50.0 g/L, manual

8. Stability criteria: selectable (low or high)

9. Calibration due alarm: 1 to 31 days or off

10. Hold function: manual or auto-endpoint

11. Auto-off: user selectable (10, 20, or 30 minutes)

12. Memory: stores up to 500 data sets

13. Communication interface: USB

14. Connector type: 6-pin mini-DIN

15. Display: custom LCD, 80 × 60 mm

16. Power supply: 3 × 1.5V AA batteries or DC5V power adapter

17. Dimensions: 170 × 85 × 30 mm

18. Net weight: 300 g

19. Package size: 475 × 155 × 350 mm

20. Gross weight: 1.7 kg

Accessories Included

1. DO100 dissolved oxygen electrode

2. Electrolyte solution

3. Membrane cap

4. Carrying case

Conclusion

The Biobase PH-821 Portable Dissolved Oxygen Meter is a reliable and feature-rich solution for professionals requiring portable, accurate, and customizable oxygen monitoring. With its expanded memory, configurable functions, and USB connectivity, the PH-821 offers both performance and convenience, making it ideal for demanding field applications in water quality and environmental testing.