{"product_id":"u-s-solid-uv-vis-spectrophotometer-single-beam-optical-system-with-ratio-detection-190-1100-nm-usb","title":"UV-Vis Spectrophotometer, Single-Beam Optical System with Ratio Detection, 190–1100 nm，USB output","description":"\u003cstyle\u003e\n  .uss-detail-content {\n    width: 100%;\n    max-width: 1440px;\n    margin: 0 auto;\n    overflow: hidden;\n  }\n\n  .uss-detail-content p,\n  .uss-detail-content li,\n  #uss-parameter-table td {\n    overflow-wrap: break-word;\n    word-break: normal;\n  }\n\n  .uss-media {\n    width: 100%;\n    margin: 18px auto 32px;\n    text-align: center;\n    line-height: 0;\n  }\n\n  .uss-media img {\n    display: block;\n    width: 100%;\n    max-width: 1400px;\n    height: auto !important;\n    margin: 0 auto;\n    object-fit: contain;\n  }\n\n  .uss-media--hero img {\n    max-width: 1800px;\n  }\n\n  .uss-media-stack {\n    display: grid;\n    grid-template-columns: 1fr;\n    gap: 24px;\n  }\n\n  .uss-table-wrapper {\n    width: 100%;\n    margin: 15px 0 30px;\n    overflow: hidden;\n  }\n\n  #uss-parameter-table {\n    width: 100% !important;\n    min-width: 0 !important;\n    height: auto !important;\n    table-layout: fixed;\n    border: 0 !important;\n    border-collapse: collapse;\n    background-color: #fff;\n  }\n\n  #uss-parameter-table tr {\n    border-bottom: 1px dashed #666;\n  }\n\n  #uss-parameter-table td {\n    width: auto !important;\n    height: auto !important;\n    padding: 10px 14px !important;\n    border: 0 !important;\n    text-align: left;\n    vertical-align: middle;\n    font-family: Arial, sans-serif;\n    font-size: 15px;\n    line-height: 1.45;\n    color: #333;\n  }\n\n  #uss-parameter-table thead td,\n  #uss-parameter-table tbody td:first-child {\n    background-color: #f0f0f0;\n    color: #000;\n    font-weight: 700;\n  }\n\n  #uss-parameter-table td:first-child {\n    width: 36% !important;\n  }\n\n  #uss-parameter-table td:last-child {\n    width: 64% !important;\n  }\n\n  #uss-parameter-table p {\n    margin: 0;\n  }\n\n  @media only screen and (max-width: 768px) {\n    .uss-detail-content {\n      padding: 0 12px;\n    }\n\n    .uss-media {\n      margin: 14px auto 24px;\n    }\n\n    .uss-media-stack {\n      gap: 16px;\n    }\n\n    #uss-parameter-table td {\n      padding: 8px 9px !important;\n      font-size: 13px;\n      line-height: 1.4;\n    }\n\n    #uss-parameter-table td:first-child {\n      width: 38% !important;\n    }\n\n    #uss-parameter-table td:last-child {\n      width: 62% !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"uss-detail-content\"\u003e\n\u003cdiv class=\"uss-media uss-media--hero\"\u003e\u003cimg src=\"http:\/\/file.ussolid.com\/content\/JFUVS\/title.png\" alt=\"UV-Vis Spectrophotometer\"\u003e\u003c\/div\u003e\n\u003ch2 class=\"uss-section-title\"\u003e\u003cstrong\u003eINTRODUCTION\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe U.S. Solid JFUVS Series UV-Vis Spectrophotometer is available in standalone and PC-enabled configurations. The standalone version is designed for direct bench operation without a computer, while the PC-enabled version supports computer-based data acquisition, spectral scanning, curve visualization, and data management for laboratories that require a more comprehensive analytical workflow.\u003c\/p\u003e\n\u003cp\u003eBuilt around a reliable single-beam optical system, an optimized CT optical path, and an enhanced 8-bit control processor, the JFUVS Series delivers dependable UV-Vis measurements for routine laboratory analysis, quality control, scientific research, and educational applications. Its long-life deuterium and tungsten lamps support UV and visible measurements, with automatic light-source switching for streamlined operation.\u003c\/p\u003e\n\u003cp\u003eThe instrument performs automatic self-tests at startup, including lamp, detector, filter, wavelength-calibration, and dark-current checks. It also supports photometric measurement, quantitative analysis by standard-curve or coefficient methods, data and spectrum storage, USB export, and optional printing. Up to 50 standard curves can be stored and recalled, helping streamline repeat testing and routine concentration analysis.\u003c\/p\u003e\n\u003ch2 class=\"uss-section-title\"\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"uss-media\"\u003e\u003cimg src=\"http:\/\/file.ussolid.com\/content\/JFUVS\/features33333.png\" alt=\"UV-Vis Spectrophotometer Features\"\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRatio-Detection Single-Beam Design:\u003c\/strong\u003e The optimized optical system uses ratio detection to help compensate for light-source variation, supporting stable, repeatable measurements beyond a basic single-beam configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-In Deuterium and Tungsten Lamps:\u003c\/strong\u003e Replace lamps conveniently without optical realignment, reducing maintenance time and helping keep the instrument ready for routine testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacious Sample Compartment:\u003c\/strong\u003e Accommodates standard cuvettes and compatible accessories in multiple sizes for flexible laboratory workflows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard Analytical Tools:\u003c\/strong\u003e Perform standard-curve analysis, concentration calculations, kinetic measurements, and spectral scans directly on the instrument, with data and curves saved for later review.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrinter-Ready Reporting:\u003c\/strong\u003e In addition to USB data export, the dedicated printer interface supports convenient printing of measurement results and records.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaboratory-Focused Operation:\u003c\/strong\u003e The membrane keypad and clear menu structure support efficient setup, routine testing, and repeatable daily operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"uss-section-title\"\u003e\u003cstrong\u003eDESIGN DETAILS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"uss-media-stack\"\u003e\n\u003cdiv class=\"uss-media\"\u003e\u003cimg src=\"http:\/\/file.ussolid.com\/content\/JFUVS\/detail-1.png\" alt=\"Spectrophotometer Design Details\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"uss-media\"\u003e\u003cimg src=\"http:\/\/file.ussolid.com\/content\/JFUVS\/detail-2.png\" alt=\"Spectrophotometer Controls and Connections\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"uss-section-title\"\u003e\u003cstrong\u003eAPPLICATIONS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"uss-media\"\u003e\u003cimg src=\"http:\/\/file.ussolid.com\/content\/JFUVS\/application.png\" alt=\"UV-Vis Spectrophotometer Applications\"\u003e\u003c\/div\u003e\n\u003ch2 class=\"uss-section-title\"\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"uss-table-wrapper\"\u003e\n\u003ctable id=\"uss-parameter-table\" class=\"uss-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003eParameter\u003c\/td\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical System\u003c\/td\u003e\n\u003ctd\u003eSingle-Beam Optical System with Ratio Detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength Range\u003c\/td\u003e\n\u003ctd\u003e190–1100 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiffraction Grating\u003c\/td\u003e\n\u003ctd\u003e1200 lines\/mm holographic grating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpectral Bandwidth\u003c\/td\u003e\n\u003ctd\u003e1.8 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.3 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength Repeatability\u003c\/td\u003e\n\u003ctd\u003e0.1 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometric Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.3%T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometric Repeatability\u003c\/td\u003e\n\u003ctd\u003e0.15%T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometric Range\u003c\/td\u003e\n\u003ctd\u003e0–200%T, −3 to 3 A, 0–9999 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStray Light\u003c\/td\u003e\n\u003ctd\u003e≤0.05%T @ 220 nm and 360 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStability\u003c\/td\u003e\n\u003ctd\u003e±0.001 A\/h @ 500 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaseline Flatness\u003c\/td\u003e\n\u003ctd\u003e±0.001 A\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength Setting\u003c\/td\u003e\n\u003ctd\u003eAutomatic Wavelength Calibration and Setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Source\u003c\/td\u003e\n\u003ctd\u003eDeuterium and Tungsten Lamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e320 × 240 dots LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Interface\u003c\/td\u003e\n\u003ctd\u003eUSB (Optional RS-232)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eAC 110 V\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"uss-section-title\"\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat does the U.S. Solid JFUVS Series UV-Vis Spectrophotometer measure?\u003c\/strong\u003e\u003cbr\u003eThe JFUVS Series measures absorbance (Abs) and transmittance (%T) of liquid samples across the 190-1100 nm UV-Vis wavelength range. It can be used for routine photometric measurement, concentration analysis, standard-curve testing, and related laboratory applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan the instrument be used without a computer?\u003c\/strong\u003e\u003cbr\u003eYes. The standalone configuration can perform routine measurements, quantitative analysis, wavelength setting, blank calibration, data storage, and printing without a computer. PC-enabled configurations are also available for users who prefer computer-based data acquisition, curve display, spectral scanning, and data management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this a standard single-beam spectrophotometer?\u003c\/strong\u003e\u003cbr\u003eThe JFUVS Series uses a single-beam optical design with ratio detection to help reduce the effect of light-source variation and support consistent measurements. It is not a true dual-beam instrument, so a blank\/reference measurement should be performed separately before sample testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat measurement functions are available?\u003c\/strong\u003e\u003cbr\u003eThe instrument supports photometric measurement and quantitative analysis using standard-curve and coefficient methods. It can store and recall standard curves, perform concentration calculations, and save measurement data. PC-enabled versions provide additional computer-based analytical workflow options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat types of samples can be tested?\u003c\/strong\u003e\u003cbr\u003eThe instrument is designed primarily for liquid samples placed in compatible cuvettes. Typical applications include chemical solutions, colorimetric assays, environmental water samples, food and beverage testing, biochemical research, and industrial quality-control samples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow can I obtain reliable measurement results?\u003c\/strong\u003e\u003cbr\u003eAllow the instrument to complete its startup self-test and recommended warm-up before use. Perform blank calibration at the test wavelength, use clean matched cuvettes, avoid fingerprints and air bubbles, and keep the sample-compartment cover closed during measurement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow are data exported and reported?\u003c\/strong\u003e\u003cbr\u003eMeasurement data can be saved on the instrument and exported to a USB flash drive through the USB interface. The instrument also supports connection to a compatible printer for printing measurement records and results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow many standard curves can be stored?\u003c\/strong\u003e\u003cbr\u003eThe instrument can store and recall up to 50 standard curves, helping laboratories reuse established methods for routine concentration testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat routine maintenance is recommended?\u003c\/strong\u003e\u003cbr\u003eKeep the sample compartment clean and dry, remove spills promptly, and keep cuvettes free of residue or scratches. The plug-in deuterium and tungsten lamps can be replaced when needed without optical realignment. Follow the user manual for calibration, lamp care, and routine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"U.S. Solid","offers":[{"title":"Standalone","offer_id":49097937125631,"sku":"JFUVS00001","price":3499.99,"currency_code":"USD","in_stock":true},{"title":"With PC Software","offer_id":49097937158399,"sku":"JFUVS00002","price":3799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/8113\/7151\/files\/5_36ca8252-805d-4f97-98c5-423be9e61b79.png?v=1787706666","url":"https:\/\/ussolid.com\/products\/u-s-solid-uv-vis-spectrophotometer-single-beam-optical-system-with-ratio-detection-190-1100-nm-usb","provider":"U.S. Solid","version":"1.0","type":"link"}