Portable pH/lon Meter PH-320 Biobase

Portable pH/Ion Meter PH-320 Biobase

The PH-320 Portable pH/Ion Meter by Biobase is a versatile, high-precision instrument designed for pH, ORP, and ion concentration measurements. With advanced calibration, automatic temperature compensation, and a portable design, it is ideal for laboratory, industrial, and field applications. Equipped with a wide range of optional ion-selective electrodes (ISE), the PH-320 provides comprehensive solutions for multi-parameter water quality analysis.

Features

pH Measurement

1. 1 to 5-point calibration with automatic recognition for USA, NIST, and DIN buffers.

2. Automatic electrode diagnosis shows pH slope and offset.

ORP Measurement

1. 1-point offset calibration for adjusting displayed values to a standard.

2. Relative and absolute millivolt modes ensure reliable ORP measurements.

Ion Concentration Measurement

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

2. Direct ion concentration readout simplifies measurement.

3. Automatic electrode diagnosis shows calibration points and slopes.

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

General Functions

1. Automatic temperature compensation across the full range.

2. Auto-Read function detects stable endpoints and locks results.

3. Calibration due alarm prompts regular recalibration.

4. Auto-power off (10, 20, or 30 minutes) conserves battery life.

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

6. Reset function restores all factory default settings.

7. Expanded memory stores up to 500 data sets.

8. USB interface for data transfer or power connection.

9. Multi-mode power supply (batteries, adapter, USB).

Optional Ion Selective Electrodes (ISE)

Ammonium (NH₄⁺), Bromide (Br⁻), Cadmium (Cd²⁺), Calcium (Ca²⁺), Chloride (Cl⁻), Cupric (Cu²⁺), Cyanide (CN⁻), Fluoride (F⁻), Iodide (I⁻), Lead (Pb²⁺), Nitrate (NO₃⁻), Potassium (K⁺), Silver (Ag⁺), Sodium (Na⁺), Sulphide (S²⁻), and Ammonia (NH₃).

Applications

1. Environmental monitoring of natural waters and wastewater.

2. Food, beverage, and pharmaceutical testing.

3. Aquaculture and agricultural water quality management.

4. Research and education laboratories requiring multi-parameter analysis.

Technical Specifications

pH

• Range: -2.000 ~ 20.000 pH

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

• Accuracy: ±0.002 pH

• Calibration: 1 ~ 5 points

• Buffer options: USA (1.68, 4.01, 7.00, 10.01, 12.45), NIST (1.68, 4.01, 6.86, 9.18, 12.45), DIN (1.09, 4.65, 6.79, 9.23, 12.75) or 2 custom buffers

ORP

• Range: -1999.9 ~ 1999.9 mV

• Relative mV range: -1999.9 ~ 1999.9 mV

• Resolution: 0.1, 1 mV (selectable)

• Accuracy: ±0.2 mV

• Calibration: 1 point (relative mV mode)

Ion Concentration

• Range: 0.001 ~ 19999 ppm / mg/L / mol/L (depending on ISE)

• Resolution: 0.001, 0.01, 0.1, 1

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

• Calibration: 2 ~ 5 points

• Calibration standards: 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000

Temperature

• Range: 0 ~ 105°C / 32 ~ 221°F

• Resolution: 0.1°C / 0.1°F

• Accuracy: ±0.5°C / ±0.9°F

• Offset calibration: 1 point, ±10°C

• Compensation: 0 ~ 100°C, manual or automatic

Other Specifications

• Stability criteria: low or high

• Calibration due alarm: 1 to 31 days or off

• Slope/offset display: yes

• Hold function: manual or auto-endpoint

• Auto-off: 10, 20, or 30 minutes

• Memory: 500 data sets

• Interface: USB

• Connectors: BNC, 3.5 mm jack socket

• Display: custom LCD (80 × 60 mm)

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

• Battery life: ~150 hours (backlight off)

• Dimensions: 170 × 85 × 30 mm

• Net weight: 300 g

• Package size: 475 × 155 × 350 mm

• Gross weight: 2 kg

Accessories Included

1. pH electrode

2. Temperature probe

3. pH buffer solutions (pH 4.01 / 7.00 / 10.01)

4. Carrying case

Conclusion

The Biobase PH-320 Portable pH/Ion Meter is a comprehensive and accurate multi-parameter analyzer for both laboratory and field use. Supporting a wide range of ion-selective electrodes, it offers flexibility, precision, and reliability for environmental monitoring, industrial quality control, and research applications. Its portability, memory capacity, and USB connectivity make it a professional tool for advanced water quality testing.