Portable Water Quality Meter PH-900P Biobase

Portable Water Quality Meter PH-900P Biobase

The PH-900P Portable Water Quality Meter by Biobase is a multifunctional device designed for precise and reliable measurement of pH, ORP, ion concentration, conductivity, TDS, salinity, resistivity, and dissolved oxygen. With its 3.5-inch backlit LCD display, advanced calibration options, and wide range of compensation functions, it provides accurate and user-friendly operation for laboratory, industrial, and field applications.

Features

pH Measurement

1. Large 3.5-inch backlit LCD display for clear, real-time data.

2. 1 to 5-point calibration with automatic buffer recognition (USA, NIST, DIN).

3. Automatic electrode diagnosis showing slope and offset.

ORP Measurement

1. 1-point offset calibration for adjusting readings to standard values.

2. Supports both relative and absolute millivolt modes.

Ion Concentration

1. 2 to 5-point calibration with 8 selectable concentration points.

2. Direct ion concentration readout for simplified testing.

3. Automatic electrode diagnosis for calibration and slope.

4. Selectable units: ppm, mg/L, mol/L, mmol/L, with ionic valency input.

Conductivity/TDS/Salinity/Resistivity

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

2. Selectable cell constants, reference temperatures, and compensation modes (linear, pure water, seawater, practical salinity).

3. Automatic electrode diagnosis of calibration points and factors.

Dissolved Oxygen

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

2. Manual salinity and barometric pressure compensation.

Other Functional Features

1. Automatic temperature compensation ensures precision across the full range.

2. Auto-Read function locks the stable measurement endpoint.

3. Calibration due alarm prompts timely recalibration.

4. Auto-power off extends battery life.

5. Setup menu allows customization of calibration points, resolution, units, date, and time.

6. Reset function restores factory defaults instantly.

7. Internal memory stores up to 500 data sets.

8. USB interface for data transfer to PC.

9. Multi-mode power options: batteries, adapter, or USB power supply.

Applications

1. Environmental monitoring of rivers, lakes, and groundwater.

2. Aquaculture systems for pH, salinity, and oxygen monitoring.

3. Industrial water treatment and quality assurance.

4. Food, beverage, and pharmaceutical industries requiring multi-parameter water analysis.

5. Laboratory and educational use for research and teaching.

Technical Specifications

pH

• Range: -2.000 ~ 20.000 pH

• Resolution: 0.001, 0.01, 0.1 pH (selectable)

• Accuracy: ±0.002 pH

• Calibration points: 1 to 5

• Buffer options: USA, NIST, DIN, 2 custom

ORP (optional)

• Range: ±1999.9 mV

• Resolution: 0.1, 1 mV

• Accuracy: ±0.2 mV

• Calibration points: 1

Ion Concentration (optional)

• Range: 0.001 ~ 19999 (depending on ISE)

• Resolution: 0.001, 0.01, 0.1, 1

• Accuracy: ±0.5% F.S. (monovalent), ±1% F.S. (divalent)

• Units: ppm, mg/L, mol/L, mmol/L

• Calibration points: 2 to 5

Conductivity

• Range:

  • 0.1 ~ 2 μS/cm (CON-0.1, optional)

  • 2 ~ 20 mS/cm (CON-1, standard)

  • 20 ~ 200 mS/cm (CON-10, optional)

• Resolution: 0.001, 0.01, 0.1, 1

• Accuracy: ±0.5% F.S.

• Calibration: 1 to 5 points with standards 10 μS/cm, 84 μS/cm, 1413 μS/cm, 12.88 mS/cm, 111.8 mS/cm

• Cell constants: K=0.1, 1, 10 or custom

• Temperature coefficient: 0.0 ~ 10.0%/°C linear, pure water

• Reference temperature: 20 or 25°C

TDS

• Range: 0 ~ 10.00, 100.0, 1000 ppm; 10.00, 200.0 ppt

• Resolution: 0.01, 0.1, 1

• Accuracy: ±1% F.S.

• TDS factor: 0.1 ~ 1.0 (default 0.5)

Salinity

• Range: 0.00 ~ 42.00 psu; 0.00 ~ 80.00 ppt

• Resolution: 0.01

• Accuracy: ±1% F.S.

Resistivity

• Range: 0.00 ~ 20.00 MΩ·cm

• Resolution: 0.01

• Accuracy: ±1% F.S.

Dissolved Oxygen

• Range: 0.00 ~ 20.00 mg/L; 0.0 ~ 200.0% saturation

• Resolution: 0.01 mg/L, 0.1%

• Accuracy: ±0.2 mg/L, ±2.0%

• Calibration: 1 or 2 points

• Salinity correction: 0.0 ~ 50.0 g/L, manual

• Barometric correction: 60.0 ~ 112.5 kPa / 450 ~ 850 mmHg, manual

Other Specifications

• Temperature compensation: 0 ~ 100°C / 32 ~ 212°F, manual or automatic

• Memory: 500 data sets

• Power: 3 × 1.5V AA batteries or DC5V adapter

• Dimensions: 170 × 85 × 30 mm

• Net weight: 300 g

• Package size: 450 × 320 × 100 mm

• Gross weight: 2 kg

Accessories Included

1. pH electrode

2. Conductivity electrode

3. Dissolved oxygen electrode

4. Temperature probe

5. pH buffer solutions

6. Conductivity standard solutions

7. Dissolved oxygen electrolyte and membrane cap

8. Carrying case

Conclusion

The Biobase PH-900P Portable Water Quality Meter is a complete, multi-parameter solution for accurate water testing in the field or laboratory. With wide measurement capabilities (pH, ORP, ion concentration, conductivity, TDS, salinity, resistivity, DO), advanced calibration options, and robust data management, it is an ideal instrument for environmental research, industrial water quality control, aquaculture, and academic applications.