Portable Conductivity/TDS/Salinity Meter PH-531 Biobase

Portable Conductivity/TDS/Salinity Meter PH-531 Biobase

The PH-531 Portable Conductivity/TDS/Salinity Meter by Biobase is an advanced portable instrument designed for precise field and laboratory water quality measurements. It offers 1 to 5-point calibration, multi-parameter testing, and extensive data storage, making it highly suitable for environmental monitoring, aquaculture, and industrial applications where accurate conductivity, TDS, salinity, and resistivity readings are essential.

Features

1. 1 to 5-point calibration with automatic recognition of conductivity standards.

2. Automatic electrode diagnosis displays calibration points and factors to ensure measurement reliability.

3. Supports selectable cell constants, reference temperatures, TDS factors, and compensation modes including linear, pure water, seawater, and practical salinity.

4. Automatic temperature compensation ensures accurate measurements in varying field conditions.

5. Auto-Read function detects stable measurements and locks the endpoint automatically.

6. Calibration due alarm prompts timely recalibration to maintain accuracy.

7. Auto-power off feature conserves battery life during field operations.

8. Setup menu allows configuration of calibration points, stability criteria, temperature unit, date, and time.

9. Reset function restores factory default settings for quick reinitialization.

10. Stores up to 500 data sets with convenient recall.

11. USB communication interface for efficient data transfer and connection to external power.

Applications

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

2. Aquaculture water quality management for optimal fish and shrimp farming conditions.

3. Industrial water treatment, production line monitoring, and wastewater management.

4. Portable laboratory or field inspections requiring accurate TDS, conductivity, and salinity measurements.

Technical Specifications

1. Conductivity range:

   • Standard (CON-1): 2 μS/cm ~ 20,000 μS/cm

   • Optional probes:

     • CON-0.01: 0.01 μS/cm ~ 0.1 μS/cm

     • CON-0.1: 0.1 μS/cm ~ 2 μS/cm

     • CON-10: 20,000 μS/cm ~ 200 mS/cm

2. Conductivity accuracy: ±0.5% F.S.

3. Conductivity resolution: 0.001, 0.01, 0.1, 1 μS/cm

4. Calibration points: 1 to 5 points

5. Calibration solutions: 10 μS/cm, 84 μS/cm, 1413 μS/cm, 12.88 mS/cm, 111.8 mS/cm

6. TDS range: 0 ~ 10.00, 100.0, 1000 ppm; 10.00, 200.0 ppt

7. TDS accuracy: ±1% F.S.

8. TDS resolution: 0.01, 0.1, 1

9. TDS factor: 0.1 ~ 1.0 (default 0.5)

10. Salinity range: 0.00 ~ 42.00 psu, 0.00 ~ 80.00 ppt

11. Salinity accuracy: ±1% F.S.

12. Salinity resolution: 0.01

13. Resistivity range: 0.00 ~ 20.00 MΩ·cm

14. Resistivity accuracy: ±1% F.S.

15. Resistivity resolution: 0.01

16. Temperature range: 0 ~ 105°C / 32 ~ 221°F

17. Temperature accuracy: ±0.5°C / ±0.9°F

18. Temperature resolution: 0.1°C / 0.1°F

19. Offset calibration: 1 point, reading ±10°C

20. Temperature compensation: 0 ~ 100°C, manual or automatic

21. Temperature coefficient: linear (0.0 ~ 10.0%/°C), non-linear, pure water

22. Reference temperature: 20 or 25°C

23. Cell constants: K = 0.1, 1, 10

24. Stability criteria: selectable low or high

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

26. Hold function: manual or auto-endpoint

27. Auto-off: selectable 10, 20, or 30 minutes

28. Memory: 500 data sets

29. Data interface: USB

30. Connector type: 6-pin mini-DIN, 3.5 mm jack socket

31. Display: custom LCD, 80 × 60 mm

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

33. Battery life: approximately 150 hours (backlight off)

34. Dimensions: 170 × 85 × 30 mm

35. Net weight: 300 g

36. Package size: 475 × 155 × 350 mm

37. Gross weight: 2 kg

Accessories Included

1. PH-531 meter

2. CON-1 conductivity electrode

3. Temperature probe

4. Standard calibration solutions

5. Carrying case

Conclusion

The Biobase PH-531 Portable Conductivity/TDS/Salinity Meter is an advanced, multi-parameter water analysis tool ideal for both field and laboratory use. With 1 to 5-point calibration, extensive compensation modes, 500-set data storage, and USB connectivity, it delivers accurate, stable, and convenient measurements for environmental, aquaculture, and industrial water testing applications.