A131 Benchtop Ion Meter
• Professional benchtop ion meter is equipped with a 7 inch TFT display.
• 2 to 5 points calibration, including the 8 concentration points can be selected.
• Electrode management is capable of storing and recalling up to 3 electrode slopes.
• Selectable ion measurement methods (direct reading, known addition, known subtraction, sample addition, sample subtraction) and concentration units (ppm, mg/L, mol/L, mmol/L).
• 2 to 5 points calibration from low to high concentrations.
• Selectable measurement units (german degree, english degree, french degree, mmol/L and mg/L) are used for professional water hardness measurements.
• Automatic temperature compensation ensures accurate readings over the entire range.
• Auto-Read function senses and locks the measurement endpoint.
• Timed Interval Readings sends the measurement data to a PC or printer.
• Limit Alarm automatically alerts when reading exceeds the specified range.
• Calibration due alarm prompts user to calibrate the meter regularly.
• Calibration report shows the date, time, calibration points and slopes.
• Password protection prevents the unauthorized calibration and settings.
• Expanded memory stores or recalls up to 1000 data sets.
• Reset function automatically resumes all settings back to the factory defaults.
| Model | A131 |
| Ion Concentration | |
| Range | 0.001 to 30000 (deponding on the range of ISE) |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Accuracy | ±0.5% F.S. (monovalent), ±1% F.S. (divalent) |
| Calibration Points | 2 to 5 points |
| Calibration Solutions | 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000 |
| Measurement Units | ppm, mg/L, mol/L, mmol/L |
| Measurement Methods | Direct reading, known addition, known subtraction, |
| sample addition, sample subtraction | |
| Water Hardness | |
| Range (Concentration) | 0.05 to 200mmol/L |
| Range (German Degree) | 0 to 1120°dH |
| Range (English Degree) | 0 to 1404°e |
| Range (French Degree) | 0 to 2000°fH |
| Range (Ca2+) | 0 to 8000mg/L |
| Range (CaCO3) | 0 to 19999mg/L |
| Range (CaO) | 0 to 11220mg/L |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Accuracy | ±1% F.S. |
| Calibration Points | 2 to 5 points |
| Calibration Solutions | 0.01, 0.1, 1, 10, 100mmol/L |
| mV | |
| Range | ±2000.0mV |
| Resolution | 0.1mV |
| Accuracy | ±0.2mV |
| Temperature | |
| Range | 0 to 105°C/32 to 221°F |
| Resolution | 0.1°C/0.1°F |
| Accuracy | ±0.5°C/±0.9°F |
| Offset Calibration | 1 point |
| Calibration Range | Reading ±10°C |
| General Specifications | |
| Temperature Compensation | 0 to 100°C/32 to 212°F, manual or automatic |
| Stability Criteria | Standard or high-accuracy |
| Calibration Due Alarm | 1 to 31 days or off |
| Interval Readings | 10, 30, 60 seconds, 10, 30 minutes or off |
| Password Protection | 4 digits |
| Memory | Stores up to 1000 data sets |
| Output | USB communication interface |
| Connector | BNC, 3.5mm jack socket |
| Display | 7” TFT LCD |
| Power | DC12V, using AC adapter, 220V/50Hz |
| Dimensions | 240(L)×220(W)×80(H)mm |
| Weight | 1.7kg |