

The M310F-A Multi-parameter Analyzer is a robust and portable instrument designed for accurate and comprehensive field measurements of pH, ion concentration, and conductivity. Equipped with a 3.5-inch LCD screen, it supports multi-reading modes including auto-read, timed-read, and continuous-read. Temperature compensation can be applied either automatically or manually to ensure precise results across varying environments. The auto-hold function locks stable readings, and up to 500 sets of data per parameter can be stored in GLP-compliant memory. Additional user-friendly features include USB communication, auto power-off for battery conservation, factory reset option, and IP65-rated waterproof housing for outdoor use.
pH Measurement supports 1–5 point calibration with automatic buffer recognition based on NIST, DIN, or GB standards. It features automatic electrode diagnostics showing slope and offset for maintenance and accuracy.
Ion Measurement offers 1–5 point calibration and multiple unit options (μg/L, mg/L, ppm, mmol/L, etc.). Measurement modes include Direct Reading, Standard Addition, and GRAN. Over ten ion types such as F⁻, Cl⁻, NO₃⁻, NH₄⁺, K⁺, Ca²⁺, Pb²⁺, and others are pre-programmed, and users can define custom methods as needed.
Conductivity Measurement supports 1–3 point calibration with adjustable parameters such as cell constant, temperature coefficient, and TDS factor. Compensation options include none, linear, and pure water modes.
With its intelligent interface, rugged build, and flexible measurement functions, the M310F-A is ideal for laboratory-grade testing in field conditions.
Features:
Specifications :
| Model | M310F-A | |
| Parameters | pH/EC/ISE/Temp. (mV/ORP/pX/Resistivity/TDS/Sal.) | |
| pH | Range | -2.00 to 20.00 pH |
| Resolution | 0.01 pH | |
| Accuracy | ± 0.02 pH | |
| Calibration Points | Up to 5 | |
| Standard Customization | Yes | |
| Standard Recognition | NIST, GB and DIN buffers | |
| Slope Limit | Yes | |
| mV | Range | -2000.0 to 2000.0 mV |
| Resolution | 0.1 | |
| Accuracy | ± 0.3 mV or ± 0.1% | |
| pX | Range | -2.00 to 20.00 |
| Resolution | 0.01 pX | |
| Accuracy | ± 0.02 pX | |
| Calibration Points | Up to 5 | |
| ISE | Range | 1E-9 to 9.999E9 |
| Units | mo/L, mmol/L, g/L, mg/L, μg/L | |
| Resolution | Up to 4 significant digits | |
| Accuracy | ± 0.5% | |
| Calibration Points | Up to 5 | |
| Conductivity | Range | 0.000 μS/cm to 500 mS/cm |
| Resolution | 0.001 μS/cm minimum, various with range selection |
|
| Accuracy | ± 1.0% FS | |
| Reference Temperature | 20, 25 °C | |
| Calibration Points | Up to 3 | |
| Standard Recognition | 84 μS/cm, 1413 μS/cm, 12.88mS/cm | |
| Resistivity | Range | 5.00 Ω·cm-20.00 M Ω·cm |
| Resolution | 0.01 Ω·cm minimum | |
| Accuracy | ± 1.0% FS | |
| TDS | Range | 0.00mg/L-300g/L |
| Resolution | 0.01mg/L minimum, various with range selection | |
| Accuracy | ± 1.0% | |
| Salinity | Range | (0.00-8.00% |
| Resolution | 0.01% | |
| Accuracy | ± 0.2% | |
| Temperature | Range | -5 to 110 °C, 23 to 230 °F |
| Unit | °C, °F | |
| Resolution | 0.1 | |
| Relative Accuracy | ± 0.2 | |
| Measurement | Reading Mode | Auto Read (Fast, Medium, Slow), Timed, Continuous |
| Reading Prompts | Reading, Stable, Locked | |
| Temp. Compensation | ATC, MTC | |
| Data management | Data Storage | 500 results each |
| GLP Features | Yes | |
| Inputs | pH Electrode | BNC(Q9) |
| Inputs | Conductivity with Temp. Probe | 5-pin aviation connector |
| Outputs | USB | PC, printer |
| Display options | Backlight | Yes |
| Auto Shutdown | 300, 600, 1200, 1800, 3600 sec., off | |
| IP Rating | IP65 | |
| Date and Time | Yes | |
| General | Power | Rechargeable Lithium battery, AC Adapter, 100-240V AC input, DC5V output |
| Dimensions | 80 × 255 × 35 mm | |
| Weight | 400g (0.88 lb) | |
| Model | M310F-A | |
| Parameters | pH/EC/ISE/Temp. (mV/ORP/pX/Resistivity/TDS/Sal.) | |
| pH | Range | -2.00 to 20.00 pH |
| Resolution | 0.01 pH | |
| Accuracy | ± 0.02 pH | |
| Calibration Points | Up to 5 | |
| Standard Customization | Yes | |
| Standard Recognition | NIST, GB and DIN buffers | |
| Slope Limit | Yes | |
| mV | Range | -2000.0 to 2000.0 mV |
| Resolution | 0.1 | |
| Accuracy | ± 0.3 mV or ± 0.1% | |
| pX | Range | -2.00 to 20.00 |
| Resolution | 0.01 pX | |
| Accuracy | ± 0.02 pX | |
| Calibration Points | Up to 5 | |
| ISE | Range | 1E-9 to 9.999E9 |
| Units | mo/L, mmol/L, g/L, mg/L, μg/L | |
| Resolution | Up to 4 significant digits | |
| Accuracy | ± 0.5% | |
| Calibration Points | Up to 5 | |
| Conductivity | Range | 0.000 μS/cm to 500 mS/cm |
| Resolution | 0.001 μS/cm minimum, various with range selection |
|
| Accuracy | ± 1.0% FS | |
| Reference Temperature | 20, 25 °C | |
| Calibration Points | Up to 3 | |
| Standard Recognition | 84 μS/cm, 1413 μS/cm, 12.88mS/cm | |
| Resistivity | Range | 5.00 Ω·cm-20.00 M Ω·cm |
| Resolution | 0.01 Ω·cm minimum | |
| Accuracy | ± 1.0% FS | |
| TDS | Range | 0.00mg/L-300g/L |
| Resolution | 0.01mg/L minimum, various with range selection | |
| Accuracy | ± 1.0% | |
| Salinity | Range | (0.00-8.00% |
| Resolution | 0.01% | |
| Accuracy | ± 0.2% | |
| Temperature | Range | -5 to 110 °C, 23 to 230 °F |
| Unit | °C, °F | |
| Resolution | 0.1 | |
| Relative Accuracy | ± 0.2 | |
| Measurement | Reading Mode | Auto Read (Fast, Medium, Slow), Timed, Continuous |
| Reading Prompts | Reading, Stable, Locked | |
| Temp. Compensation | ATC, MTC | |
| Data management | Data Storage | 500 results each |
| GLP Features | Yes | |
| Inputs | pH Electrode | BNC(Q9) |
| Inputs | Conductivity with Temp. Probe | 5-pin aviation connector |
| Outputs | USB | PC, printer |
| Display options | Backlight | Yes |
| Auto Shutdown | 300, 600, 1200, 1800, 3600 sec., off | |
| IP Rating | IP65 | |
| Date and Time | Yes | |
| General | Power | Rechargeable Lithium battery, AC Adapter, 100-240V AC input, DC5V output |
| Dimensions | 80 × 255 × 35 mm | |
| Weight | 400g (0.88 lb) | |
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