This manual provides detailed information on the characterization and use of the pH211R microprocessor-based bench pH/mV/°C meter, including instrument overview, functional description, specifications, operational guide, pH calibration, electrode conditioning and maintenance, temperature-resistance correlation for pH sensitive glass, troubleshooting guide, accessories and technical specifications.
The Hanna Instruments pH211R is a microprocessor-based bench meter designed for quality control laboratories. It measures pH, mV, and temperature, featuring automatic temperature compensation and a 0 to 5 V analog output. The device includes a large LCD display and is supplied with a glass body pH electrode, temperature probe, and buffer solutions.
| pH Range | -2.00 to 16.00 pH |
|---|---|
| mV Range | +/-399.9 / +/-2000 mV |
| Temperature Range | -9.9 to 120.0°C |
| pH Resolution | 0.01 pH |
| pH Accuracy | +/-0.01 pH |
| Analog Output | 0 to 5 Vdc not isolated |
| Dimensions | 240 x 182 x 74 mm |
| Weight | 1.1 kg |
The instrument should be recalibrated at least once a week, whenever the electrode is replaced, after testing aggressive chemicals, if higher accuracy is required, or after the RESET button is pressed.
Five memorized buffers are available: pH 4.01, 6.86, 7.01, 9.18, and 10.01.
Yes, but an optional ORP electrode must be used to perform ORP measurements.