{"product_id":"digital-refractometer-for-ethylene-glycol-analysis-hi96831","title":"Digital Refractometer for Ethylene Glycol Analysis - HI96831","description":"\u003cdiv style=\"margin: 0 0 48px;\"\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for ethylene glycol analysis\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003e0 - 100% Volume range with ±0.2% accuracy\u003c\/li\u003e\n\u003cli\u003e0 to -50 ℃ freezing point range with ±0.5 ℃ accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMeasurement Units\u003c\/h4\u003e\n\u003cp\u003eFreezing point is displayed as a temperature from 0.0 to -50.0 ℃ corresponding to 0-58 % by volume. The display blinks the freezing point when the concentration of Ethylene glycol is greater than 78 % concentration by volume. When the display shows \"LO\", the freezing point is at a minimum (below -50 ℃).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px 48px; margin: 0 0 48px;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; max-width: 440px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/Screen_Shot_2015-01-20_at_3.54.23_PM.png\" alt=\"\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 340px; min-width: 0;\"\u003e\n\u003ch4 style=\"margin-top: 0;\"\u003eMaking a Standard Solution\u003c\/h4\u003e\n\u003cp\u003eTo make an Ethylene Glycol Solution, follow the procedure below:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlace container (such as a glass vial or dropper bottle that has a cover) on an analytical balance.\u003c\/li\u003e\n\u003cli\u003eTare the balance.\u003c\/li\u003e\n\u003cli\u003eVolumetrically add X mL of high purity ethylene glycol (CAS #: 107-21-1; MW 62.068) to a 100 mL Grade A volumetric flask.\u003c\/li\u003e\n\u003cli\u003eUse distilled or deionized water to bring the flask close to the total volume, mix, allow the solution to return to room temperature.\u003c\/li\u003e\n\u003cli\u003eOnce the solution has returned to room temperature use distilled or deionized water to bring the total volume to 100 mL. Mix solution well before use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 0 0 32px;\"\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eEthylene Glycol\u003c\/td\u003e\n\u003ctd\u003eTotal Volume\u003c\/td\u003e\n\u003ctd\u003eExpected Freezing Point Value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10% V\/V\u003c\/td\u003e\n\u003ctd\u003e10.00 mL\u003c\/td\u003e\n\u003ctd\u003e100.00 mL\u003c\/td\u003e\n\u003ctd\u003e-3.8 ℃ (25.2 ℉)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40% V\/V\u003c\/td\u003e\n\u003ctd\u003e40.00 mL\u003c\/td\u003e\n\u003ctd\u003e100.00 mL\u003c\/td\u003e\n\u003ctd\u003e-26.3 ℃ (-15.4 ℉)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px 48px; margin: 0 0 48px; flex-direction: row-reverse;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; max-width: 440px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/Refractive_Index_Diagrams-94ed188b.jpg\" alt=\"refractive index\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 340px; min-width: 0;\"\u003e\n\u003ch2 style=\"margin-top: 0;\"\u003eRefractive Index\u003c\/h2\u003e\n\u003cp\u003eThe HI96831 takes measurements based on a sample's refractive index. Refractive index is a measurement of how light behaves as it passes through the sample. Depending on the sample's composition, light will refract and reflect differently. By measuring this activity with a linear image sensor, the sample's refractive index can be assessed and used to determine its physical properties such as concentration and density. In addition to the linear image sensor, the HI96831 uses an LED light, prism and lens to make measurement possible.\u003c\/p\u003e\n\u003cp\u003eVariations in temperature will affect the accuracy of refractometry readings, so the use of temperature compensation is highly recommended for reliable results. The HI96831 contains a built-in temperature sensor and is programmed with temperature compensation algorithms in accordance with internationally recognized references which vary based on the parameter being measured.\u003c\/p\u003e\n\u003ch4\u003eFeatures at-a-glance:\u003c\/h4\u003e\n\u003cp\u003eOne-point calibration\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eCalibrate with distilled or deionized water\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eSmall sample size\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eSample size can be as small as 2 metric drops (100 μl)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eAutomatic Temperature Compensation (ATC)\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eSamples automatically compensated for temperature variations\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eQuick, accurate results\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eReadings are displayed in approximately 1.5 seconds\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eDual-level LCD\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eThe dual-level LCD displays measurements and temperature readings simultaneously\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eStainless steel sample well\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eEasy to clean and corrosion-resistant\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eBattery indicators\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eBattery percent level remaining at startup and low battery indicator\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eAutomatic shut-off\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eTo conserve battery life the meter shuts off automatically after three minutes of non-use\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eIP65 water resistant protection\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eWater resistant ABS plastic casing designed to perform under laboratory and field conditions.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHI96831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003eDigital Refractometer for Ethylene Glycol Analysis - HI96831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthylene Glycol Range\u003c\/td\u003e\n\u003ctd\u003e0 to 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthylene Glycol Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthylene Glycol Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.2 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0 to 80°C (32 to 176°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1°C (0.1°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.3 °C (±0.5 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eautomatic between 0 and 40°C (32 to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Shut-Off\u003c\/td\u003e\n\u003ctd\u003eafter three minutes of inactivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e9V \/ approximately 5000 readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e192 x 102 x 67 mm (7.6 x 4.01 x 2.6”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e420 g (14.8 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefractometer Light Source\u003c\/td\u003e\n\u003ctd\u003eyellow LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Sample Volume\u003c\/td\u003e\n\u003ctd\u003e100 µL (to cover prism totally)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Cell\u003c\/td\u003e\n\u003ctd\u003estainless steel ring and flint glass prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Time\u003c\/td\u003e\n\u003ctd\u003eapproximately 1.5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI96831 is supplied with battery and instruction manual\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/manuals.hannainst.com\/HI96831\" target=\"_blank\" rel=\"noopener\"\u003eDigital Refractometer for Ethylene Glycol Analysis - HI96831\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871439094129,"sku":"HI96831","price":27357.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi96831_1.jpg?v=1792646749","url":"https:\/\/hannainst.in\/products\/digital-refractometer-for-ethylene-glycol-analysis-hi96831","provider":"hanna","version":"1.0","type":"link"}