The HI96831 Digital Refractometer utilizes the measurement of refractive index to determine the percent volume and freezing points of ethylene glycol based solutions. Ethylene glycol is used in glycol cooling systems for industrial applications. Maintaining the appropriate percent of glycol is important in glycol chillers as too low of a percentage could lead to the system freezing and rupturing while too much glycol will reduce the systems efficiency. 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 HI96831 is an easy-to-use tool for measuring freezing point and percent volume in ethylene glycol solutions, in the field or in the lab.
Features
- One-point calibration
- Calibrate with distilled or deionized water
- Small sample size
- Sample size can be as small as 2 metric drops (100 μl)
- Automatic Temperature Compensation (ATC)
- Samples automatically compensated for temperature variations
- Quick, accurate results
- Readings are displayed in approximately 1.5 seconds
- Dual-level LCD
- The dual-level LCD displays measurements and temperature readings simultaneously
- Stainless steel sample well
- Easy to clean and corrosion-resistant
- Battery indicators
- Battery percent level remaining at startup and low battery indicator
- Automatic shut-off
- To conserve battery life the meter shuts off automatically after three minutes of non-use
- IP65 water resistant protection
- Water resistant ABS plastic casing designed to perform under laboratory and field conditions.
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