{"product_id":"hanna-instruments-hi-931-automatic-potentiometric-titrator-with-ph-mv-ise","title":"Hanna Instruments HI-931 Automatic Potentiometric Titrator with pH, mV \u0026 ISE","description":"\u003cp\u003eThe HI-931 Automatic Potentiometric Titrator features a space-saving design and versatile functionality, with the ability to perform a wide variety of potentiometric titrations and pH, mV and ISE measurements when using the relevant electrodes. A 40,000-step piston-driven pump offers an unmatched degree of accuracy by enabling extremely small titrant and reagent dosing volumes throughout the titration process. \u003c\/p\u003e\u003ch3\u003eHI-931 Automatic Potentiometric Titrator with pH, mV and ISE\u003c\/h3\u003e \u003cp\u003eThe HI-931 Automatic Potentiometric Titrator from Hanna Instruments is a highly accurate, comprehensive solution for potentiometric titration. A small footprint and compact design ensure this titrator can fit into laboratories and workspaces of varying sizes, taking up less room without sacrificing high-speed, accurate measurement. \u003c\/p\u003e \u003cp\u003eThis titrator can perform fixed endpoint or equivalence point titrations in addition to direct measurement through testing the pH\/mV and temperature of the sample. An integrated research-grade pH\/mV\/ISE meter ensures a high degree of precision in measurement.\u003c\/p\u003e \u003cp\u003eAn included flexible electrode holder can support up to 3 electrodes, 4 dispensing tubes, 1 temperature sensor and a removable stirrer. This specifically designed holder positions electrodes in the centre of the beaker to enable smaller sample size testing. An integrated peristaltic pump allows reagent to be introduced directly through the titration system, further automating the titration process.\u003c\/p\u003e \u003ch2\u003eHI-931 Titration System Features\u003c\/h2\u003e \u003ch3\u003eMultifunctional design\u003c\/h3\u003e \u003cp\u003eThe HI-931 is small in scale and provides a solution for a wide range of measurements, making it an ideal option to save on valuable bench space. The potentiometric titrator can function as a pH meter, mV\/ORP meter, and ISE meter in addition to performing titrations. Multiple analyses can be performed on one sample, for easy and efficient testing.\u003c\/p\u003e \u003ch3\u003eDynamic titrant dosing for accurate results\u003c\/h3\u003e \u003cp\u003eThe HI-931 Titrator features a dynamic titrant dosing system, allowing for timely and accurate titration results by directly relating titrant volume dosed to the mV response from the titration reaction. Instead of delivering the same amount of titrant throughout, larger doses occur near the beginning while smaller, more precise doses occur near the titration endpoint for an accurate outcome in testing.\u003c\/p\u003e \u003ch3\u003eMultiple titration methods available\u003c\/h3\u003e \u003cp\u003eThis automatic titrator is compatible with a wide range of Hanna electrodes from our sensor line, allowing for exceptional versatility. The HI-931 potentiometric titrator can perform acid\/base, redox (ORP), complexometric, precipitation, non-aqueous, argentometric, and ion-selective titrations. In addition, back titrations and titre determinations can also be performed as required.\u003c\/p\u003e \u003ch3\u003eCreate custom methods\u003c\/h3\u003e \u003cp\u003eUp to 100 user-defined or standard methods can be stored in the HI-931 at a time, providing a fast and easy way to complete titrations across many different sample types. Each method can be directly modified and optimised for your specific requirements or in-house standards, ensuring excellent performance across an array of applications in line with different user specifications.\u003c\/p\u003e \u003ch3\u003eDirect support from the experts\u003c\/h3\u003e \u003cp\u003eOur in-house team of experts are on hand to provide advice and support in operating the HI-931, including on-site installation, training and customisation of your titration system. Our titration specialists can advise on the best methods for your application. A \u003ca href=\"https:\/\/www.youtube.com\/watch?v=HmVhM-MLQlw\u0026amp;list=PLHNDrsKB0byX6mMsA3rSZhPhrnJL9mm43\u0026amp;ab_channel=HannaInstrumentsUK\"\u003ecomprehensive range of common titration method setup video tutorials\u003c\/a\u003e is also available online for free to support our customers in creating the ideal methods for their sample requirements.\u003c\/p\u003e \u003ch3\u003eEquivalence endpoint detection included\u003c\/h3\u003e \u003cp\u003eEquivalence endpoint detection is critical in applications where fixed endpoints are not specified within the standard method. This endpoint indicates where the mV response from the titration is greatest with respect to the volume of titrant dosed, providing an accurate reading for the titration process.\u003c\/p\u003e \u003ch3\u003eSignal stability timing for reliability\u003c\/h3\u003e \u003cp\u003eThe HI-931 includes a signal stability feature that monitors when the mV response of the titration reaction stabilises before providing the next titrant dose. This ensures reliable measurement values throughout the length of a titration, automatically dosing the correct amount for accurate results.\u003c\/p\u003e \u003ch3\u003ePractical burette and dosing system\u003c\/h3\u003e \u003cp\u003eThis automatic potentiometric titrator has a practical burette and dosing system, making titration of a wide range of samples fast and easy. The burette is designed with Hanna’s Click-Lock functionality, enabling titrants and reagents to be exchanged in seconds while preventing cross-contamination. The burette well is also sealed at the bottom to catch drips and spills.\u003c\/p\u003e \u003ch4\u003ePrecision 40,000-step pump\u003c\/h4\u003e \u003cp\u003eA 40,000-step piston-driven pump provides unmatched accuracy, enabling extremely small dosing volumes. This ensures exceptional precision in titrant and reagent, improving the outcome of the titration for reliable results.\u003c\/p\u003e \u003ch4\u003eCompatible with multiple burette sizes\u003c\/h4\u003e \u003cp\u003eThe HI-931 Automatic Potentiometric Titrator is supplied with a 25 ml burette on delivery. However, the versatility of this system allows a 5 ml, 10 ml, or 50 ml burette to be attached according to your specific requirements. Each burette is constructed with a ground glass syringe and chemically resistant PTFE plunger. \u003c\/p\u003e \u003ch4\u003ePeristaltic pump for automated reagent addition\u003c\/h4\u003e \u003cp\u003eA peristaltic pump or second burette can be attached to the HI-931 Automatic Titrator and programmed to volumetrically dispense reagent before titration or direct measurement. This method of addition helps to achieve accurate and consistent results, preventing operator errors such as incorrect volumes or a lack of reagent, which can lead to inaccurate results.\u003c\/p\u003e \u003ch3\u003eSpecifically designed electrode holder\u003c\/h3\u003e \u003cp\u003eThe redesigned electrode holder for this titrator includes a spring-loaded actuator that allows you to quickly raise or lower the stirrer\/electrodes with the push of a button. This space-saving holder can accommodate sample sizes of less than 50 ml. Supports rods mount directly to the titrator itself, with no additional hardware requirements.\u003c\/p\u003e \u003ch3\u003eClear, easy-to-use display\u003c\/h3\u003e \u003cp\u003eThe HI-931 has a bright, colour LCD display that is easy to read, with simple navigation to access reports and graphs. The screen displays the chosen titration method along with results, units, titration volume, temperature, and mV or pH values. All data to be stored for titration is fully customisable, and graphs can be saved as images and transferred along with reports \u003ca href=\"https:\/\/www.documentation.hannainst.com\/software\"\u003eusing the dedicated free software found here\u003c\/a\u003e.\u003c\/p\u003e \u003ch2\u003eFAQs\u003c\/h2\u003e \u003ch3\u003eWhat industries is the HI-931 suitable for?\u003c\/h3\u003e \u003cp\u003eThe HI-931 is a versatile titrator with a built-in research-grade pH\/mV\/ISE meter. This titrator is well-suited for a wide range of specialist applications and industries, including:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eFood\u003c\/li\u003e \u003cli\u003eBeverage\u003c\/li\u003e \u003cli\u003eDairy\u003c\/li\u003e \u003cli\u003eWine\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eIs the HI-931 customisable to my requirements?\u003c\/h3\u003e \u003cp\u003eThis automatic titrator is customisable in many ways to suit individual industry and user requirements. The burette size can be switched out and different compatible electrodes utilised for reliable, accurate measurement. The HI-931 can be customised with personal methods using the easy, on-screen navigation system, enabling this potentiometric titrator to be tailored for different specifications.\u003c\/p\u003e \u003ch3\u003eCan I get training when I buy the HI-931 Titrator?\u003c\/h3\u003e \u003ch3\u003eCan you supply custom methods for the HI-931?\u003c\/h3\u003e \u003ch3\u003eDo you supply reagents and titration chemicals for the HI-931?\u003c\/h3\u003e \u003ch3\u003eHow do I book a demonstration of the HI-931 Titrator?\u003c\/h3\u003e \u003ch3\u003eHow do I contact Hanna Instruments UK?\u003c\/h3\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e-2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1; 0.01; 0.001 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy (@25°C)\u003c\/td\u003e\n\u003ctd\u003e±0.001 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Calibration\u003c\/td\u003e\n\u003ctd\u003eup to five-point calibration, eight standard buffers and five custom buffers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003emV\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e-2000.0 to 2000.0 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy (@25°C)\u003c\/td\u003e\n\u003ctd\u003e±0.1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003emV Calibration\u003c\/td\u003e\n\u003ctd\u003esingle point offset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003eISE\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e1•10-6 to 9.999•1010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1; 0.1; 0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy (@25°C)\u003c\/td\u003e\n\u003ctd\u003e±0.5% monovalent; ±1% divalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eISE Calibration\u003c\/td\u003e\n\u003ctd\u003eUp to five-point calibration, seven standard solutions and five user-defined standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e-5.0 to 105.0°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy (@25°C)\u003c\/td\u003e\n\u003ctd\u003e±0.1°C excluding probe error\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003eData Storage\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethods\u003c\/td\u003e\n\u003ctd\u003eup to 100 titration methods (standard and user)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReports\u003c\/td\u003e\n\u003ctd\u003eup to 100 titration and pH\/mV\/ISE reports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003eAdditional Specifications\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Board(s) capability\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDosing Pump Capability\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurette included\u003c\/td\u003e\n\u003ctd\u003e1 (25mL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurette Size Capability\u003c\/td\u003e\n\u003ctd\u003e5, 10, 25 and 50 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurette Resolution\u003c\/td\u003e\n\u003ctd\u003e1\/40000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Resolution\u003c\/td\u003e\n\u003ctd\u003e0.001 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDosing Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% of full burette volume\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e14.9cm (5.7”) 320 x 240 pixel) backlit colour LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLP Conformity\u003c\/td\u003e\n\u003ctd\u003eInstrumentation data storage and printing capabilities\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e100-240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrdering information\u003c\/td\u003e\n\u003ctd\u003eHI-931-02 includes titrator with one analog board* All models also include: overhead propeller stirrer with stand, 25ml glass burette, dosing pump, temperature sensor, USB cable, USB Flash drive and PC Software.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003eAdditional extras\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHI-930101\u003c\/td\u003e\n\u003ctd\u003eDosing pump with peristaltic pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHI-930100\u003c\/td\u003e\n\u003ctd\u003eDosing pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHI-930150\u003c\/td\u003e\n\u003ctd\u003e50 mL burette assembly (includes syringe, aspiration, and dispensing tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHI-930125\u003c\/td\u003e\n\u003ctd\u003e25 mL burette assembly (includes syringe, aspiration, and dispensing tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHI-930110\u003c\/td\u003e\n\u003ctd\u003e10 mL burette assembly (includes syringe, aspiration, and dispensing tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHI-930105\u003c\/td\u003e\n\u003ctd\u003e5 mL burette assembly (includes syringe, aspiration, and dispensing tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003e*Each Analog board provides 1 BNC (pH, mV, ISE) input, 1 temperature input, 1 stirrer input.\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/modules\/teapotknowledgehub\/uploads\/hi931part1ofmanual-6821ecaf2786a.pdf\" target=\"_blank\"\u003eHI-931 Titrator - Part 1 of Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/modules\/teapotknowledgehub\/uploads\/hi931part2ofmanual-6821ecf6cf30e.pdf\" target=\"_blank\"\u003eHI-931 Titrator - Part 2 of Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/modules\/teapotknowledgehub\/uploads\/hi931part3ofmanual-6821ed2222307.pdf\" target=\"_blank\"\u003eHI-931 Titrator - Part 3 of Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/modules\/teapotknowledgehub\/uploads\/hi931part4ofmanual-6821ed52cc628.pdf\" target=\"_blank\"\u003eHI-931 Titrator - Part 4 of Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640095809909,"sku":"HI-931","price":6023.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-931-02-automatic-potentiometric-titration-systems-ph-mv-ise.jpg?v=1791581174","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-hi-931-automatic-potentiometric-titrator-with-ph-mv-ise","provider":"Test All Water","version":"1.0","type":"link"}