The HI96832 portable refractometer utilizes the measurement of refractive index to determine the percent volume and freezing points of propylene glycol based solutions. The instrument converts the refractive index of a sample to percent volume or freezing point. These conversions are based on internationally recognized references for unit conversion and temperature compensation for glycol solutions (e.g. CRC Handbook of Chemistry and Physics, 87th Edition). The HI96832 is an easy to use tool for for measuring freezing point and percent volume in propylene glycol solutions, on the production floor or in the lab.
Percent Volume Range (% V/V) | 0 to 100% |
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Percent Volume Resolution (% V/V) | 0.1 % |
Percent Volume Accuracy (% V/V) @20°C/68°F | ±0.3 % |
Freezing Point Range | 0 to -51 °C (32 to -59.8 °F) |
Freezing Point Resolution | 0.1 °C (0.1 °F) |
Freezing Point Accuracy (@25°C/77°F) | ±0.5 °C (±1.0 °F) |
Temperature Range | 0 to 80°C (32 to 176°F) |
Temperature Resolution | 0.1°C (0.1°F) |
Temperature Accuracy | ±0.3 °C (±0.5 °F) |
Temperature Compensation | automatic between 0 and 40°C (32 to 104°F) |
Measurement Time | approximately 1.5 seconds |
Minimum Sample Volume | 100 μL (to cover prism totally) |
Light Source | yellow LED |
Sample Cell | stainless steel ring and flint glass prism |
Auto-off | after three minutes of inactivity |
Enclosure Rating | IP65 |
Battery Type / Life | 9V / approximately 5000 readings |
Dimensions / Weight | 192 x 102 x 67 mm (7.6 x 4.01 x 2.6”) / 420 g (14.8 oz.) |