HI96831 · HI96832 Digital Refractometers for Ethylene and Propylene Glycol Analysis • Easy measurement · Place a few drops of the sample in the well and press the READ key • Quick, accurate results · Readings are displayed in approximately 1.5 seconds • Rubberized keypad • IP65 water protection · Built to perform under harsh laboratory and field conditions • Small sample size · Sample size can be as small as 2 metric drops • Dual-level LCD · The dual-level LCD displays measurement and temperature readings simultaneously • ABS thermoplastic casing • Stainless steel sample well · Easy to clean and corrosion-resistant • Startup · When powered on, the meter displays battery life and the set measurement units • Unit selection · Pressing the RANGE key quickly cycles through the units of measurement (if applicable) • Automatic Temperature Compensation · For exceptionally accurate measurements • Single-point calibration · Calibrate with distilled or deionized water • BEPS (Battery Error Prevention System) · Alerts the user in the event that low battery power could adversely affect readings • Automatic shut-off after three minutes of non-use Features Samples are measured after a simple user calibration with distilled or deionized water. Within seconds, the refractive index and temperature are measured and converted into one of two measurement units; % volume or freezing point. Both meters use internationally recognized references for unit conversion and temperature compensation for glycol solutions (e.g. CRC Handbook of Chemistry and Physics, 87th Edition). Ethylene Glycol Analysis The HI96831 Digital Ethylene Glycol Refractometer utilizes the measurement of refractive index to determine the % volume and freezing point of ethylene glycol based coolants or antifreeze. • 0 to -50 °C freezing point range with ±0.5 °C accuracy Propylene Glycol Analysis The HI96832 Digital Proplylene Glycol Refractometer utilizes the measurement of refractive index to determine the % volume and freezing point of propylene glycol based solutions used in many applications such as antifreeze, pharmaceutical solvents, humectant food additives, emulsication agents, hand sanitizers and lotions, cosmetics, and toothpaste. • 0 to -51 °C freezing point range with ±0.5 °C accuracy Specifications HI96831 Ethylene Glycol HI96832 Propylene Glycol % Volume (% V/V) Range 0.0 to 100.0 % V/V 0.0 to 100.0 % V/V Resolution 0.1 % V/V 0.1 % V/V Accuracy ±0.2% V/V ±0.3 % Freezing Point (FP) Range 0.0 to -50.0 ºC (32.0 to -58.0 ºF) 0.0 to -51.0 ºC (32.0 to -59.8 ºF) Resolution 0.1 °C / 0.1 °F 0.1 °C / 0.1 °F Accuracy ±0.5 °C / ±1.0 °F ±0.5 °C / ±1.0 °F Temperature Range 0.0 to 80.0 °C (32.0 to 176.0 °F) 0.0 to 80.0 °C (32.0 to 176.0 °F) Resolution 0.1 °C / 0.1 °F 0.1 °C / 0.1 °F Accuracy ±0.3 °C / ±0.5 °F ±0.3 °C / ±0.5 °F Additional Specifications Temperature Compensation Automatic, between 10.0 and 40.0 °C (50.0−104.0 °F) Measurement Time Approximately 1.5 seconds Minimum Sample Volume 100 µL (cover prism totally) Light Source Yellow LED Sample Cell Stainless steel ring and flint glass prism Case Material ABS Enclosure Rating IP65 Battery Type / Life 9V / 5000 readings Auto-off After 3 minutes of non-use Dimensions 192 x 102 x 69mm (7.6 x 4.1 x 2.7”) Mass 350 g (12.3 oz.) Ordering Information HI96831 and HI96832 are supplied with 9V battery, plastic pipette, quick reference guide with QR code for manual download, and instrument quality certificate. 13 Refractometers 13.14 | www.hannainst.com
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