{"product_id":"fluoride-low-range-portable-photometer-meter-only-hi97729","title":"Fluoride Low-Range Portable Photometer-Meter Only - HI97729","description":"\u003cdiv style=\"margin: 0 0 48px;\"\u003e\n\u003cp\u003eFluoride is best known for preventing tooth decay. Water authorities often add fluoride to drinking water to maintain approximately a 1.0 mg\/L (ppm) concentration. Fluoride can be found naturally in groundwater, particularly if a reservoir is in close proximity to seawater. While fluoride does help prevent tooth decay, too little can be ineffective while too much can cause staining of teeth.\u003c\/p\u003e\n\u003cp\u003eThe HI97729 uses an adaptation of the EPA method 340.1 and the Standard Methods for the Examination of Water and Wastewater, 23rd Edition SPADNS method, to measure fluoride concentrations up to 2.00 mg\/L (ppm). When the colored reagent is added to samples containing fluoride, the fluoride in the sample will form a colorless complex; the greater the concentration, the clearer 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 low range fluoride determination, a narrow band interference filter at 575 nm allows only yellow light to be detected by the silicon photodetector and omits all other visible light emitted from the LED lamp. As the change in color of the reacted sample decreases, absorbance of the specific wavelength of light also decreases, while transmittance increases.\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\u003cul\u003e\n\u003cli\u003eLED that generates very little heat.\u003c\/li\u003e\n\u003cli\u003e8 nm narrowband interference filter that is accurate to ±1 nm.\u003c\/li\u003e\n\u003cli\u003eReference detector that modulates the voltage to LED for consistent light output.\u003c\/li\u003e\n\u003cli\u003eA concave focusing lens that reduces errors from imperfections in the cuvette.\u003c\/li\u003e\n\u003c\/ul\u003e\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(200px, 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\/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;\"\u003eHI97729 FEATURES\/BENEFITS:\u003c\/h4\u003e\n\u003ch5\u003eStable Light Source:\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eThe internal reference system of the HI97729 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 HI97729 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 HI97729 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\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHI97729\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003eFluoride Low-Range Portable Photometer-meter only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluoride Range\u003c\/td\u003e\n\u003ctd\u003e0.00 to 2.00 mg\/L (as F-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluoride Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluoride 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\u003eFluoride Method\u003c\/td\u003e\n\u003ctd\u003eadaptation of Standard Methods for the Examination of Water and Wastewater, 23rd Edition, SPADNS Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Source\u003c\/td\u003e\n\u003ctd\u003eLED 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\u003esilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBandpass Filter Bandwidth\u003c\/td\u003e\n\u003ctd\u003e8 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\u003eround 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\u003eyes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e128 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\u003e50 readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e1.5 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\u003eafter 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\u003e0 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\u003e380 g (13.4 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e142.5 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\/tbody\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\u003e\nHI97729 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 href=\"https:\/\/manuals.hannainst.com\/HI97729\" target=\"_blank\" rel=\"noopener\"\u003eFluoride Low-Range Portable Photometer-meter only\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871443845489,"sku":"HI97729","price":34021.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/fluoride-low-range-photometer-hi97729__38356.jpg?v=1792646804","url":"https:\/\/hannainst.in\/products\/fluoride-low-range-portable-photometer-meter-only-hi97729","provider":"hanna","version":"1.0","type":"link"}