Max Electronics (India)ME 91 : It is Used For measuring the pH , Temp. , D.O , TDS , Salinity , Turbidity , Conductivity , ORP .
| pH | |
| Range | 0 to 14pH |
| Resolution | 0.01pH |
| Accuracy | ±0.01pH (Relative) |
| Temp. Comp | Automatic With Temp. Probe |
| Buffer | Manual By Keys |
| Recognition | 4.00 7.00, 9.20 pH (Automatic) |
| Slope Adjustment | 80% to 120%, By Default 100% |
| Calibration | Auto/Manual 2-Point, 3-Point |
| mV (ORP) | |
| Range | 0 to ±1999mV |
| Resolution | 1mV |
| Accuracy | ±1 |
| mV Calibration | Manual |
| Temperature | |
| Range | -20.0 to +200°C |
| Resolution | 0.1°C |
| Accuracy | ±0.2% |
| Input Type | Pt 100 |
| Calibration | Manual |
| Dissolved Oxygen | |
| Range | 0 t 20pap |
| Resolution | 0.1ppm |
| Temperature Comp. | Automatic with pt 100probe & manual with keys |
| Pressure Adjustment | 0 to 999mm of Hg Manual |
| Salinity Correction | 0 to 20gm/1 (Manual) |
| Calibration | Automatic |
| Accuracy | ±2%±1digit |
| Conductivity | |
| Range | 0 to 1000m mho in 6-ranges |
| Range Selection | Automatic 6 Ranges 0µ mho to 1000m mho |
| Resolution | 0.1µ mho |
| Cell Constant | Adjustable |
| Temperature co.-eff | Adjustable between 0 to 4% |
| Temperature Comp. | Automatic for entire range |
| Accuracy | ±0.5% of range + 1digit |
| Turbidity | |
| Range | 0-100JTU |
| Resolution | 1JTU |
| Accuracy | ±3% FS ±1digit |
| Sample Size | 30mm glass tube |
| Light | 6.8V Tungsten Lamp |
| TDS | |
| Range | 0 to 200 ppt in 5 Ranges |
| Range Selection | Automatic |
| Resolution | 0.1 ppm |
| TDS Factor | 0.5 and adjustable manuall |
| SALINITY | |
| Range | 0 to 50 ppt |
| Resolution | 0.1 ppt |
| Accuracy | ±0.5% of range + 1digit |
| Temperature Comp. | Automatic |
| Salinity Factor | 0.75 and Adjustable Manually |
| FEATURES | |
| Display | 16 Character * 2 lines Alphanumeric lcd. |
| Display Format | Temp & pH or temp & ORP Simultaneously auto Display of Selected Buffer |
| Setting | By soft Touch Keys |
| Storage | 1000 samples With Date and Time |
| Interface | RS-232 Centronics & Computer |
| Real Time Display | 24 hour Mode With Date |
| Error Indication | pH error , Buffer Error , ORP Error |
| Digital Output |
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| Print Format |
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| Accessories | 1) pH Electrode 2) Standard Solution 7.0 pH & 4.0 pH 3) ORP Electrode (On Demand) 4) Temeprature Probe 5) Conductivity/TDS/Salinity Cell 6) DO Probe 7) Instruction Manual |
