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General| Model | HI 2209 |
|---|---|
| Display | LCD |
| pH Range | -2.00 to 16.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.01 pH |
| mV Accuracy | ±0.2 mV |
| Temperature Resolution | 0.1°C (0.1°F) |
| Temperature Accuracy | ±0.4°C (±0.8°F) |
| pH Calibration | Up to 5 points |
| Logging | Yes |
| Power Supply | 12 VDC adapter (included) |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Electrode | Not included |
| mV Range | ±2000 mV |
| mV Resolution | 0.1 mV |
| Temperature Range | -20.0 to 120.0 °C |
| Temperature Compensation | Automatic |
| Input Impedance | 10^12 ohms |
| Calibration | Automatic/Manual |
Step-by-step process for performing accurate pH measurements with the instrument.
Steps for preparing buffer solutions and equipment before pH calibration.
Detailed steps for performing the pH calibration process on the meter.
Instructions for initial electrode setup and conditioning before first use.
Guidance on handling and rinsing the electrode tip during measurements.
Proper methods for storing the electrode to maintain its performance and lifespan.
Regular checks and upkeep required for the electrode and its cable.
General soaking procedure for cleaning the electrode.
Diagnosing and resolving issues causing fluctuating readings.
Troubleshooting steps for electrodes with dry membrane or junction.
Addressing issues where readings gradually change over time.
Identifying causes and solutions for a low slope during calibration.
Troubleshooting when no slope is detected during calibration.
Resolving slow electrode response times and significant drift.
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