{"product_id":"hanna-instruments-hi-97708-portable-photometer-for-nitrite-high-range","title":"Hanna Instruments HI-97708 Portable Photometer for  Nitrite - High Range","description":"\u003cp\u003eThe HI-97708 photometer is a compact and versatile meter suitable for field or bench measurements.\u003c\/p\u003e\u003cul\u003e \u003cli\u003eSophisticated optical system\u003c\/li\u003e \u003cli\u003eMeter validation using certified CAL Check cuvettes\u003c\/li\u003e \u003cli\u003eTutorial mode guides the user step-by-step\u003c\/li\u003e \u003cli\u003eAuto logging\u003c\/li\u003e \u003cli\u003eWaterproof IP67, floating case\u003c\/li\u003e \u003cli\u003eGLP features\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eAbout the HI-97708 photometer\u003c\/h3\u003e \u003cp\u003eHI-97708 is an advanced portable photometer for the measurement of High Range Nitrite in water. This meter offers a superior optical system that utilises a reference detector and narrow band interference filters for extremely fast and repeatable measurements.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHigh Range Nitrite - 0 to 150 mg\/L (as NO2-)\u003c\/li\u003e \u003cli\u003eNo warm up time before taking a measurement\u003c\/li\u003e \u003cli\u003eTutorial mode for step-by-step instructions\u003c\/li\u003e \u003cli\u003eDisplays results in multiple chemical forms\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThe HI-97708 has an innovative optical system that offers superior performance in accuracy, repeatability, and the short amount of time it takes to perform a measurement. This compact, waterproof meter is extremely user friendly with a tutorial mode that walks the user graphically, step by step, in performing a measurement. The use of a backlit dot matrix LED allows the use of virtual keys which makes the operation of the meter very intuitive including selecting different methods, reviewing GLP data, recalling the last 50 measurements, and customising the meter to user preferences.\u003c\/p\u003e \u003cp\u003eHI-97708 is waterproof including the cuvette holder that is designed with ridges to protect the optical path from getting scratched by the cuvette and a protected battery compartment that holds three AA batteries. The compact design fits comfortably in the hand for use in the field or on a table for benchtop use. The LCD is 71 mm (2.75\") by 37 mm (1.6\") and is backlit for easy viewing under all conditions.\u003c\/p\u003e \u003cp\u003eEach HI-97708 is delivered in a cardboard box and is supplied with:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSample cuvette (2 pcs.)\u003c\/li\u003e \u003cli\u003eSample cuvette cap (2 pcs.)\u003c\/li\u003e \u003cli\u003ePlastic stopper (2 pcs.)\u003c\/li\u003e \u003cli\u003e1.5V AA Alkaline batteries\u003c\/li\u003e \u003cli\u003eInstrument quality certificate\u003c\/li\u003e \u003cli\u003eInstruction manual\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eReagent sets to buy separately\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eHI-93708-01 Nitrite HR Reagent - 100 tests\u003c\/li\u003e \u003cli\u003eHI-93708-03 Nitrite HR Reagent - 300 tests\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eAdvanced optical system\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eLED that generates very little heat.\u003c\/li\u003e \u003cli\u003e8 nm narrowband interference filter that is accurate to +\/- 1 nm and offers 25% increase in light efficiency.\u003c\/li\u003e \u003cli\u003eReference detector that modulates the voltage to LED for consistent light output.\u003c\/li\u003e \u003cli\u003eA concave focusing lens that reduces errors from imperfections in the cuvette.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eAbout Nitrites\u003c\/h3\u003e \u003cp\u003eNitrites can be harmful to aquatic organisms even in low concentrations. For this reason, they are closely monitored in aquaculture facilities. In cooling towers, however, an adequate amount of nitrites is necessary to prevent corrosion. In high concentrations, they can be harmful to the environment and to humans. They are, therefore, normally monitored to verify the quality of water for domestic use, as well as lakes and ponds.\u003c\/p\u003e \u003cp\u003eNitrites are an intermediate product in the nitrogen cycle and are produced by ammonia oxidation with water, or even originate in industrial waste directly. They must not be present in drinking water.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNitrite Range\u003c\/td\u003e\n\u003ctd\u003e0 to 150 mg\/L (as NO2-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±4 mg\/L ±4% of reading at 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethod\u003c\/td\u003e\n\u003ctd\u003eAdaptation of the Ferrous Sulphate Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Source\u003c\/td\u003e\n\u003ctd\u003eLight emitting diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Detector\u003c\/td\u003e\n\u003ctd\u003eSilicon photocell with narrow band interference filter @ 575 nm\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\u003eDate, time of last calibration\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 Type\u003c\/td\u003e\n\u003ctd\u003eautomatic logging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogging Memory\u003c\/td\u003e\n\u003ctd\u003e50 measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e1.5V AA battery (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); relative humidity: 100% (IP 67, floating case)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e380g with batteries\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCasing protection rating\u003c\/td\u003e\n\u003ctd\u003eIP67, floating case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrdering Information\u003c\/td\u003e\n\u003ctd\u003eHI-97708 is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/modules\/teapotknowledgehub\/uploads\/man_97708_10_19-60b8e34d7869a.pdf\" target=\"_blank\"\u003eHI-97708 Nitrite HR Photometer (PDF)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640103412085,"sku":"HI-97708","price":502.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-97708-nitrite-high-range-photometer.jpg?v=1791581384","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-hi-97708-portable-photometer-for-nitrite-high-range","provider":"Test All Water","version":"1.0","type":"link"}