{"product_id":"zinc-portable-photometer-meter-only-hi97731","title":"Zinc Portable Photometer-Meter Only - HI97731","description":"\u003cdiv style=\"margin: 0 0 48px;\"\u003e\n\u003cp\u003eZinc is normally introduced into drinking water through industrial effluents, especially due to dezincification of brass and deterioration of galvanized iron. In addition to drinking water, zinc is measured in surface finishing, boilers and cooling towers, water conditioning, and effluent waters.\u003c\/p\u003e\n\u003cp\u003eThe HI97731 meter measures the zinc content in water samples up to 3.00 mg\/L (ppm). The method is adaptation of the Standard Methods for the Examination of Water and Wastewater, 23rd Edition, Zinc on method. When the reagent is added to a sample containing zinc, the sample will turn a brown-green to a blue hue; 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 silver determination, a narrow band interference filter at 575 nm allows only yellow-green 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\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\/PHOTOMETER-OPTICAL-SYSTEM.jpg\" alt=\"photometer 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\u003cul\u003e\u003cli\u003e\u003cul\u003e\u003cli\u003eLED that generates very little heat.\u003c\/li\u003e\u003c\/ul\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\u003cul\u003e\u003cli\u003e8 nm narrowband interference filter that is accurate to ±1 nm.\u003c\/li\u003e\u003c\/ul\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\u003cul\u003e\u003cli\u003eReference detector that modulates the voltage to LED for consistent light output.\u003c\/li\u003e\u003c\/ul\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eA concave focusing lens that reduces errors from imperfections in the cuvette.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"margin: 0 0 24px; text-align: center;\"\u003eOn-Screen Features\u003c\/h2\u003e\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px 24px; margin: 0 0 48px;\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; align-items: center; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/0p400mgl-Certificate-Value-Screen.jpg\" alt=\"\" loading=\"lazy\" style=\"display: block; width: auto; max-width: 100%; max-height: 220px; height: auto; margin: 0 auto 16px; object-fit: contain;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px; font-size: 18px; line-height: 1.3;\"\u003eCAL Check\u003c\/h4\u003e\n\u003cp\u003eAdvanced features including CAL-Check to verify performance and if necessary, recalibrate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; align-items: center; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/2c30min-Reaction-Time-Screen.jpg\" alt=\"\" loading=\"lazy\" style=\"display: block; width: auto; max-width: 100%; max-height: 220px; height: auto; margin: 0 auto 16px; object-fit: contain;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px; font-size: 18px; line-height: 1.3;\"\u003eMultiple Chemical Forms\u003c\/h4\u003e\n\u003cp\u003eDisplay results in multiple chemical forms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; align-items: center; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/Method_Selection.jpg\" alt=\"method option\" loading=\"lazy\" style=\"display: block; width: auto; max-width: 100%; max-height: 220px; height: auto; margin: 0 auto 16px; object-fit: contain;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px; font-size: 18px; line-height: 1.3;\"\u003eSetup Options\u003c\/h4\u003e\n\u003cp\u003eBacklit dot matrix LCD that offers an exceptionally intuitive user interface that is easy to read and understand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; align-items: center; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/tutorial.jpg\" alt=\"\" loading=\"lazy\" style=\"display: block; width: auto; max-width: 100%; max-height: 220px; height: auto; margin: 0 auto 16px; object-fit: contain;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px; font-size: 18px; line-height: 1.3;\"\u003eTutorial Mode\u003c\/h4\u003e\n\u003cp\u003eTutorial mode for step-by-step instructions to guide a first-time user in how to perform a measurement correctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; align-items: center; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/2c30min-Reaction-Time-Screen.jpg\" alt=\"\" loading=\"lazy\" style=\"display: block; width: auto; max-width: 100%; max-height: 220px; height: auto; margin: 0 auto 16px; object-fit: contain;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px; font-size: 18px; line-height: 1.3;\"\u003eReaction Timer\u003c\/h4\u003e\n\u003cp\u003eBuilt-in reaction timer that ensures consistency amongst multiple users.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 0 48px;\"\u003e\n\u003ch4 style=\"margin-top: 0;\"\u003eHI97731 FEATURES\/BENEFITS:\u003c\/h4\u003e\n\u003ch5\u003eStable Light Source:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eThe internal reference system of the HI97731 photometer compensates for any drifts due to power fluctuations or ambient temperature changes. With a stable source of light the readings are fast and stable between your blank (zero) measurement and sample measurement.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eHigh Efficiency Light Source:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eLED light sources offer superior performance compared to tungsten lamps. LEDs have a much higher luminous efficiency, providing more light while using less power. They also produce little heat, which could otherwise affect electronic stability.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eHigh Quality Filters:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eImproved optical filters ensure greater wavelength accuracy and allow a brighter, stronger signal to be received. The end result is higher measurement stability and less wavelength error.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eGreater Light Yield:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eA focusing lens collects all of the light that exits the cuvette, eliminating errors from imperfections and scratches that may be present in the glass. The use of the convex lens reduces the need for indexing cuvettes.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eCAL Check Functionality:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eHanna's exclusive CAL Check feature allows for performance verification and calibration of the meter using NIST traceable standards. Our CAL Check standard vials are developed to simulate a specific absorbance value at each wavelength to verify the accuracy of subsequent readings.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eLarge Cuvette Size:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eThe sample cell of the HI97731 fits a round, glass cuvette with a 25 mm path length. The relatively long path length of the sample cuvette allows the light to pass through more of the sample solution, ensuring accurate measurements even in low absorbance samples.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eIntuitive Dot Matrix Display:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eThe HI97731 is designed with a backlit, graphic LCD. With virtual keys, a battery status indicator, and error messages. Users will find the meter interface intuitive and easy to read. A dedicated help key provides information relating to the current meter operation, and can be used at any stage in the setup or measurement process to show contextual help.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eAuto-off Protection:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eThe meter uses three common AA batteries that allow for about 800 measurements to be taken. The auto-off feature automatically shuts off the meter after 15 minutes of inactivity in order conserve battery life.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e HI97731\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003e Zinc Portable Photometer-meter only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZinc Range\u003c\/td\u003e\n\u003ctd\u003e 0.00 to 3.00 mg\/L (as Zn)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZinc Resolution\u003c\/td\u003e\n\u003ctd\u003e 0.01 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZinc Accuracy\u003c\/td\u003e\n\u003ctd\u003e ±0.03 mg\/L ±3% of reading at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZinc Method\u003c\/td\u003e\n\u003ctd\u003e adaptation of Standard Methods for the Examination of Water and Wastewater, 23rd Edition, Zincon method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Source\u003c\/td\u003e\n\u003ctd\u003e LED with 575 nm bandpass filter\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\u003eBandpass Filter Bandwidth\u003c\/td\u003e\n\u003ctd\u003e 8 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBandpass Filter Wavelength Accuracy\u003c\/td\u003e\n\u003ctd\u003e ±1.0 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCuvette Type\u003c\/td\u003e\n\u003ctd\u003e round 24.6 mm diameter (22 mm inside)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLP\u003c\/td\u003e\n\u003ctd\u003e yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e 128 x 64 pixel B\/W LCD with backlight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogging Memory\u003c\/td\u003e\n\u003ctd\u003e 50 readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e 1.5 V AA Alkaline (3 pcs.) \/ \u0026gt; 800 measurements (without backlight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Shut-Off\u003c\/td\u003e\n\u003ctd\u003e after 15 minutes of inactivity (30 minutes before a READ measurement)\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); 0 to 100% RH (IP67)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 380 g (13.4 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI97729C is supplied with CAL Check standards, cuvettes (2), caps (2), plastic inserts for cuvette, (2), scissors, cuvette cleaning cloth, 1.5V AA batteries (3), instruction manual, and instrument quality certificate packaged in a rugged, thermoformed carrying case.\u003cbr\u003eHI97729 is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate.\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca target=\"_blank\" href=\"https:\/\/manuals.hannainst.com\/HI97731\"\u003eZinc Portable Photometer-meter only\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871444238705,"sku":"HI97731","price":45928.35,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi97731_angle_1_1.jpg?v=1792646806","url":"https:\/\/hannainst.in\/products\/zinc-portable-photometer-meter-only-hi97731","provider":"hanna","version":"1.0","type":"link"}