{"product_id":"advanced-dissolved-oxygen-benchtop-meter-with-optical-do-probe-opdo-hi6421","title":"Advanced Dissolved Oxygen Benchtop Meter with Optical DO Probe (opdo®) - HI6421-02","description":"\u003cdiv style=\"margin: 0 0 48px;\"\u003e\n\u003cp\u003eHI6421 is a streamlined benchtop meter with a large touch screen display, comprised of a housing and an integrated module designed for fresh and saltwater measurements of dissolved oxygen.\u003c\/p\u003e\n\u003cp\u003eHI6421 includes Hanna's HI7641133 optical dissolved oxygen probe (opdo®) that is based on the principle of fluorescence quenching. An immobilized Pt-based luminophore is excited by the light of a blue LED and emits a red light. As oxygen interacts with the luminophore it reduces the intensity and lifetime of the luminescence. The lifetime of the luminescence is measured by a photodetector and is used to calculate the dissolved oxygen concentration.\u003c\/p\u003e\n\u003cp\u003eThe probe is fitted with easy to use Smart Caps (HI764113-1) which lock in place and contain pre-loaded calibration coefficients that are automatically transmitted to the probe. The Smart Cap features an immobilized O₂ sensitive luminophore with rugged insoluble black oxygen permeable protective layer. Over time, the sensor’s optical components can age but are compensated for by using the reference signal to compensate the measuring path. As a result, the sensor provides accurate DO measurements over long periods of time without the need for frequent calibration. Concentration measured. Additional features include built-in methods and calculations for the measurement of BOD (Biological Oxygen Demand), OUR (Oxygen Uptake Rate), and SOUR (Specific Oxygen Update Rate). Pressure compensation is done automatically (built-in barometer) or users have the option to manually enter required value. Pressure is displayed in user-configurable units: mmHg, mbar, kPa, inHg, psi, atm.\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\/LF_HI6321_1p0_1222_WEB.jpg\" alt=\"systemUI\" width=\"700\" height=\"537\" 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;\"\u003eFeatures at-a-glance\u003c\/h2\u003e\n\u003ch4\u003eUser interface\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e7-inch capacitive touch screen with multi-touch support\u003c\/li\u003e\n\u003cli\u003eCapacitive touch back, home and system menu keys\u003c\/li\u003e\n\u003cli\u003eUser-friendly icons and symbols allow users to easily navigate and interpret the instrument functions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThe user can select between five different views:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBasic measurement configuration\u003c\/li\u003e\n\u003cli\u003eSimple GLP with calibration information\u003c\/li\u003e\n\u003cli\u003eFull GLP with electrode status and calibration point details\u003c\/li\u003e\n\u003cli\u003eLive updated, interactive graph\u003c\/li\u003e\n\u003cli\u003eTabulated data with date, time, and notes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMeasurement\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure %Sat, mg\/L, ppm (DO); mg\/L, ppm (BOD); mg\/L (OUR); ppm, mg\/L (SOUR)\u003c\/li\u003e\n\u003cli\u003eApplication-specific profiles allow quick and direct measurement without the need to update the\nsensor and system settings\u003c\/li\u003e\n\u003cli\u003eActive log during measurement Measurement stability indicator (using the Stability Criteria setting)\u003c\/li\u003e\n\u003cli\u003eReading modes: direct and direct\/auto-hold\u003c\/li\u003e\n\u003cli\u003eTemperature compensation can be Automatic or set manually\u003c\/li\u003e\n\u003cli\u003eAudible and\/or alarm messages for measurements outside of predefined limits\u003c\/li\u003e\n\u003cli\u003eGalvanic isolation for measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCalibration\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOne or two points calibration at 0% and\/or 100% saturation\u003c\/li\u003e\n\u003cli\u003eSingle point manual calibration in mg\/L or % saturation using a reference method\u003c\/li\u003e\n\u003cli\u003eNon-volatile memory saves data and settings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eLogging\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eData log collection of at least 1, 000, 000 data points (with time and date stamp)\u003c\/li\u003e\n\u003cli\u003eLogging types: manual, automatic, auto-hold\u003c\/li\u003e\n\u003cli\u003eSample ID for manual and auto-hold data\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eConnectivity features \u0026amp; services\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTransfer logged data ta USB thumb drive\u003c\/li\u003e\n\u003cli\u003eLog files that include measurements and calibration data (as .csv file)\u003c\/li\u003e\n\u003cli\u003eFTP and email for log export via Ethernet and Wi-Fi connection\u003c\/li\u003e\n\u003cli\u003eUSB type A for USB stick, keyboard, and printer\u003c\/li\u003e\n\u003cli\u003eUSB type C for USB stick and PC connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHelp section for meter guidance\u003c\/h4\u003e\n\u003cul\u003e\u003cli\u003eVideo support presentation of main functionalities\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eOrdering Information:\u003c\/h2\u003e\n\u003cp\u003eHI6421 is supplied with HI7641133 optical dissolved oxygen probe (opdo®); HI764060 electrode holder; capillary pipette; 24 VDC power adapter; USB-C to USB-A cable; probe quality certificate; quick reference guide with instrument quality certificate.\u003c\/p\u003e\n\u003ch2\u003eAccessories:\u003c\/h2\u003e\n\u003cp\u003eHI7641133 optical dissolved oxygen probe (opdo®)\u003cbr\u003e\nHI764113-1 Smart cap with O-ring\u003cbr\u003e\nHI764113-2 Calibration\/storage vessel\u003cbr\u003e\nHI764113-3 Stainless steel protective shield\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003e \u003c\/p\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHI6421\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003eAdvanced Dissolved Oxygen Benchtop Meter with Optical DO Probe (opdo\u003csup\u003e®\u003c\/sup\u003e) - HI6421\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO meter Range\u003c\/td\u003e\n\u003ctd\u003e0.00 to 90.00 mg\/L (ppm) concentration; 0.0 to 600.0 % saturation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Meter Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 mg\/L (ppm); 0.1 % saturation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO (HI7641133 Optical probe) Range\u003c\/td\u003e\n\u003ctd\u003e0.00 to 90.00 mg\/L (ppm) concentration; 0.0 to 500.0 % saturation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO (HI7641133 Optical probe) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 mg\/L (ppm); 0.1 % saturation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO (HI7641133 Optical probe) Accuracy\u003c\/td\u003e\n\u003ctd\u003efrom 0.00 to 20.00 mg\/L (ppm) 1.5 % of reading or ± 0.01 mg\/L (ppm), whichever is greater from 20.00 to 50.00 mg\/L (ppm) ±5 % of reading from 0.0 to 200.0 % saturation ± 1.5 % of reading or ± 0.1 %, whichever is greater from 200.0 to 500.0 % saturation ±5 % of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarometric Pressure Range\u003c\/td\u003e\n\u003ctd\u003e450 to 850 mmHg; 600 to 1133 mBar; 60 to 133 kPa; 17 to 33 inHg; 8.7 to 16.4 psi; 0.592 to 1.118 atm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarometric Pressure Resolution\u003c\/td\u003e\n\u003ctd\u003e1 mmHg; 1 mBar; 1 kPa; 1 inHg; 0.1 psi; 0.001 atm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarometric Pressure Accuracy\u003c\/td\u003e\n\u003ctd\u003e±3 mmHg within ±15 % from the calibration point ±3 mmHg ±1 least significant digit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e−20.0 to 120.0 °C −4.0 to 248.0 °F 253.0 to 393.0 K\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; 0.1 K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.2 °C; ±0.4 °F; ±0.2 K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Calibration Points\u003c\/td\u003e\n\u003ctd\u003eOne or two points automatic calibration at 100% (8.26 mg\/L) and 0% (0 mg\/L). Single point manual using a value entered by the user in % saturation or mg\/L.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Calibration Standards\u003c\/td\u003e\n\u003ctd\u003e0 and 100% saturation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Calibration Reminder\u003c\/td\u003e\n\u003ctd\u003eDisabled Daily: 0 m in. to 23 hours and 59 m in. Periodic: 1 m in. to 500 days, 23 hours and 59 m in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eAutomatic or Manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalinity Compensation\u003c\/td\u003e\n\u003ctd\u003eAutomatic from 0 to 70 PSU (manually set) 0.0 to 70.0 % \/ 0.0 to 45.0 g\/L \/ 0.0 to 42.0 psu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReading Modes\u003c\/td\u003e\n\u003ctd\u003eDirect Direct\/Autohold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReading Stability criteria\u003c\/td\u003e\n\u003ctd\u003eAccurate Medium Fast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReading Isopotential\u003c\/td\u003e\n\u003ctd\u003e7.000 or 4.010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReading Sampling rate\u003c\/td\u003e\n\u003ctd\u003e1000 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Views Basic\u003c\/td\u003e\n\u003ctd\u003eMeasurement (DO, Temperature) Stability status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Views Simple\u003c\/td\u003e\n\u003ctd\u003eGLP Basic view information Last calibration date, offset, average slope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Views Full\u003c\/td\u003e\n\u003ctd\u003eGLP Simple GLP information and calibration point details\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Views Table\u003c\/td\u003e\n\u003ctd\u003eMeasurements updated every second are displayed in table\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDO Views Graph (Plot)\u003c\/td\u003e\n\u003ctd\u003eMeasurement versus time graph can be panned or zoomed (pinch-to-zoom technology)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogging Type\u003c\/td\u003e\n\u003ctd\u003eAutomatic, Manual, Autohold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogging Number of records\u003c\/td\u003e\n\u003ctd\u003e50 000 maximum per file Stores at least 1 000 000 data points per user\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogging Automatic interval\u003c\/td\u003e\n\u003ctd\u003e1, 2, 5, 10, 30 seconds \/ 1, 2, 5, 10, 15, 30, 60, 120, 150, 180 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogging Sample ID\u003c\/td\u003e\n\u003ctd\u003eIncremental mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogging Export option\u003c\/td\u003e\n\u003ctd\u003e.csv file format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsers\u003c\/td\u003e\n\u003ctd\u003eUp to 9 users and the default administrator account\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity USB-A\u003c\/td\u003e\n\u003ctd\u003e2 ports for keyboard input or USB thumb drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity USB-C\u003c\/td\u003e\n\u003ctd\u003e1 port for PC connectivity and USB-C type thumb drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity Wi-Fi \u0026amp; Ethernet\u003c\/td\u003e\n\u003ctd\u003eFTP \/ Web server Log transfer and download Email\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity RS232\u003c\/td\u003e\n\u003ctd\u003eConnecting peripherals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003eDC adapter 100-240AC to 24VDC 2.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e0 - 50 °C \/ 32 - 122 °F \/ 273 - 323 K maximum 95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e205 x 160 x 77 mm (8.0 x 6.2 x 3.0 “)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.2 kg (26.5 lbs.)1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/manuals.hannainst.com\/HI6421\" target=\"_blank\" rel=\"noopener\"\u003eAdvanced Dissolved Oxygen Benchtop Meter with Optical DO Probe (opdo\u003csup\u003e®\u003c\/sup\u003e) - HI6421\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871326273905,"sku":"HI6421-02","price":215460.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/HI6421.jpg?v=1792646160","url":"https:\/\/hannainst.in\/products\/advanced-dissolved-oxygen-benchtop-meter-with-optical-do-probe-opdo-hi6421","provider":"hanna","version":"1.0","type":"link"}