{"product_id":"photometer-for-reducing-sugars-in-wine-hi83746","title":"Photometer for Reducing Sugars in Wine - HI83746-01","description":"\u003cdiv style=\"margin: 0 0 48px;\"\u003e\n\u003cp\u003eThe HI83746 photometer is for the determination of reducing sugars in wine. Hanna's photometers feature an advanced optical system; the combination of a special tungsten lamp,  a narrow band interference filter,  and silicon photodetector ensure accurate photometric readings every time. The exclusive cuvette locking system ensures that the cuvette is inserted into the measurement cell in the same position every time to maintain a consistent path length.\u003c\/p\u003e\n\u003ch2\u003eFeatures at-a-glance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in timer \u003c\/strong\u003e- Display of time remaining before a measurement is taken. Ensures that all readings are taken at the appropriate reaction intervals for the test being performed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZero key\u003c\/strong\u003e - A simple press of the zero key on the face of the meter will account for the color and imperfections in the wine sample before reagent addition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuto shut-off\u003c\/strong\u003e - Automatic shut-off after 15 minutes of non-use when the meter is in measurement mode. Prevents wastage of batteries in the event the meter is accidentally left on.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery status indicator\u003c\/strong\u003e - Indicates the amount of battery life left.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eError messages\u003c\/strong\u003e - Messages on display alerting to problems including no light,  inverted sample,  and out of range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUnits of measure\u003c\/strong\u003e - Appropriate unit of measure is displayed along with reading.\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\/optsystem_scritte-b.jpg\" alt=\"optical system\" 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\u003cp\u003eSugar is an essential component in the production of wine. During alcoholic fermentation,  yeast consume sugars found in the grape juice,  or must,  and converts it to ethyl alcohol and carbon dioxide. In the case of certain styles of wine such as semi-sweet or dessert wines,  some sugar is allowed to remain post-fermentation. This residual sugar can serve to provide a sweeter character to the final blend or play a role in microbial stability.\u003c\/p\u003e\n\u003cp\u003eThe primary fermentable sugars found in grapes are glucose and fructose. These two simple sugars are also known as reducing sugars because they contain functional groups capable of being oxidized under certain conditions. After reaction with excess alkaline cupric tartrate (Fehling reagents),  the content of reducing sugars can be determined colorimetrically. The Fehling method is not an exact determination but an index of the reducing sugar concentration,  because the reaction depends upon the amount and type of reducing sugars present. When the reducing sugar content is known at the beginning of fermentation,  the potential alcohol degree can be estimated by multiplying the sugar concentration (in g\/L) by 0.06.\u003c\/p\u003e\n\u003cp\u003eThe HI83746 uses the Fehling method to determine the concentration of reducing sugars less than 50.00 g\/L (ppt). When Fehling’s A and Fehling’s B Solutions react with a sample containing reducing sugars,  the sample will undergo a color change; the greater the concentration,  the deeper the color. The associated color change is then colorimetrically analyzed according to the Beer-Lambert Law. This principle states that light is absorbed by a complementary color,  and the emitted radiation is dependent upon concentration. For determination of reducing sugars,  a narrow band interference filter at 610 nm (orange) allows only orange light to be detected by the silicon photodetector and omits all other visible light emitted from the tungsten lamp. As the change in color of the reacted sample increases,  absorbance of the specific wavelength of light also increases,  while transmittance decreases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 0 0 32px;\"\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"105\"\u003e\n\u003ccol width=\"147\"\u003e\n\u003ccol width=\"176\"\u003e\n\u003ccol width=\"180\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"4\"\u003e\n\u003cp\u003eTypical content of reducing sugars in must and wine \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\n\u003cp\u003eMust\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003esweet must\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e20 to 25 %\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e 200 to 250 g\/L\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cp\u003enormal\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e10 to 20 %\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e100 to 200 g\/L\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cp\u003ein fermentation\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e4 to 12.5 %\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e 40 to 125 g\/L\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"4\"\u003e\n\u003cp\u003eWine\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003esweet\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e2.5  to 12.5 %\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e25 to 125 g\/L\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cp\u003esemi-sweet\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e0.8 to 2.5 %\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e8 to 25 g\/L\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cp\u003ealmost dry\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e0.2 to 0.8 %\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e2 to 8 g\/L\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cp\u003edry\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e0 to 0.2 %\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cp\u003e0 to 2 g\/L\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e HI83746-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003e Photometer for Reducing Sugars in Wine - HI83746\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducing Sugars Range\u003c\/td\u003e\n\u003ctd\u003e 0.00 to 50.00 g\/L (ppt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducing Sugars Resolution\u003c\/td\u003e\n\u003ctd\u003e 0.25 g\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducing Sugars Method\u003c\/td\u003e\n\u003ctd\u003e Fehling Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrecision\u003c\/td\u003e\n\u003ctd\u003e ±0.50 @ 10.00 g\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Source\u003c\/td\u003e\n\u003ctd\u003e Tungsten lamp with narrow band interference filter @ 610 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Detector\u003c\/td\u003e\n\u003ctd\u003e Silicon Photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e Liquid Crystal Display (LCD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e 4 (1.5V) AA batteries or 12 VDC adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e 1.5V AA batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Shut-Off\u003c\/td\u003e\n\u003ctd\u003e auto-off after 15 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e 0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 512 g (18 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e 224 x 87 x 77 mm (8.8 x 3.4 x 3”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI83746 is supplied with glass cuvettes and caps (4), reagents for approximately 20 tests (HI83746-20), HI93703-59 charcoal, 200 µL automatic pipette with two plastic tips, 1000 µL automatic pipette with plastic tips (2), instruction sheet for automatic pipette, spoon, funnel, filter paper (25 pieces), cuvette wiping cloth, 12 VDC adapter, 4 (1.5V) AA batteries, instruction manual, instrument quality certificate, warranty card, and rigid carrying case.\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca target=\"_blank\" href=\"https:\/\/manuals.hannainst.com\/HI83746-01\"\u003ePhotometer for Reducing Sugars in Wine - HI83746\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871416090993,"sku":"HI83746-01","price":87565.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi83746_1.jpg?v=1792646558","url":"https:\/\/hannainst.in\/products\/photometer-for-reducing-sugars-in-wine-hi83746","provider":"hanna","version":"1.0","type":"link"}