{"product_id":"ei-dvi-model-3371-uv-vis-spectrophotometer","title":"EI-DVI Model 3371 UV-VIS Spectrophotometer | Single Beam | 5 nm Spectral Bandwidth","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e\n    :root {\n        --primary-blue: #004a99;\n        --hover-blue: #0056b3;\n        --bg-gray: #f8f9fa;\n        --text-color: #333;\n        --border-color: #ddd;\n        --white: #ffffff;\n    }\n\n    body {\n        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n        line-height: 1.6;\n        color: var(--text-color);\n        background-color: var(--bg-gray);\n        margin: 0;\n        padding: 20px;\n    }\n\n    .scispectrum-tabs-container {\n        max-width: 1200px;\n        margin: 0 auto;\n        background: var(--white);\n        border-radius: 8px;\n        box-shadow: 0 4px 15px rgba(0,0,0,0.05);\n        overflow: hidden;\n    }\n\n    .tab-input {\n        display: none;\n    }\n\n    .tab-nav {\n        display: flex;\n        flex-wrap: wrap;\n        border-bottom: 2px solid var(--border-color);\n        background-color: var(--white);\n    }\n\n    .tab-label {\n        padding: 15px 25px;\n        cursor: pointer;\n        font-weight: 600;\n        color: var(--primary-blue);\n        transition: all 0.3s ease;\n        border-bottom: 3px solid transparent;\n        text-align: center;\n        flex-grow: 1;\n    }\n\n    .tab-label:hover {\n        background-color: rgba(0, 74, 153, 0.05);\n        color: var(--hover-blue);\n    }\n\n    #tab1:checked ~ .tab-nav label[for=\"tab1\"],\n    #tab2:checked ~ .tab-nav label[for=\"tab2\"],\n    #tab3:checked ~ .tab-nav label[for=\"tab3\"],\n    #tab4:checked ~ .tab-nav label[for=\"tab4\"] {\n        border-bottom-color: var(--primary-blue);\n        color: var(--primary-blue);\n        background-color: var(--white);\n    }\n\n    .tab-panels {\n        padding: 30px;\n    }\n\n    .tab-content {\n        display: none;\n        animation: fadeIn 0.5s ease;\n    }\n\n    #tab1:checked ~ .tab-panels #content1,\n    #tab2:checked ~ .tab-panels #content2,\n    #tab3:checked ~ .tab-panels #content3,\n    #tab4:checked ~ .tab-panels #content4 {\n        display: block;\n    }\n\n    @keyframes fadeIn {\n        from { opacity: 0; }\n        to { opacity: 1; }\n    }\n\n    h3 {\n        color: var(--primary-blue);\n        margin-top: 0;\n    }\n\n    .spec-table {\n        width: 100%;\n        border-collapse: collapse;\n        margin-top: 20px;\n        font-size: 0.95rem;\n    }\n\n    .spec-table th,\n    .spec-table td {\n        text-align: left;\n        padding: 12px 15px;\n        border-bottom: 1px solid var(--border-color);\n    }\n\n    .spec-table th {\n        background-color: var(--primary-blue);\n        color: var(--white);\n        text-transform: uppercase;\n        letter-spacing: 0.05em;\n    }\n\n    .spec-table tr:nth-child(even) {\n        background-color: rgba(0, 74, 153, 0.02);\n    }\n\n    .spec-table tr:hover {\n        background-color: rgba(0, 74, 153, 0.05);\n    }\n\n    .features-list {\n        list-style: none;\n        padding: 0;\n        display: grid;\n        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));\n        gap: 20px;\n    }\n\n    .features-list li {\n        background: var(--white);\n        padding: 20px;\n        border-radius: 6px;\n        border: 1px solid var(--border-color);\n        position: relative;\n        padding-left: 50px;\n        transition: transform 0.2s ease;\n    }\n\n    .features-list li:hover {\n        transform: translateY(-3px);\n        box-shadow: 0 2px 10px rgba(0,0,0,0.05);\n    }\n\n    .features-list li::before {\n        content: '✓';\n        position: absolute;\n        left: 15px;\n        top: 20px;\n        color: var(--primary-blue);\n        font-weight: bold;\n        font-size: 1.2rem;\n    }\n\n    .feature-title {\n        font-weight: 700;\n        color: var(--primary-blue);\n        display: block;\n        margin-bottom: 5px;\n    }\n\n    .faq-item {\n        margin-bottom: 25px;\n        border-bottom: 1px solid var(--border-color);\n        padding-bottom: 15px;\n    }\n\n    .faq-question {\n        font-weight: 600;\n        color: var(--primary-blue);\n        margin-bottom: 10px;\n        font-size: 1.1rem;\n    }\n\n    pre {\n        background: #f4f4f4;\n        padding: 15px;\n        overflow-x: auto;\n        border-radius: 6px;\n        font-size: 0.85rem;\n    }\n\n    @media (max-width: 768px) {\n        html, body {\n            padding: 0 !important;\n            margin: 0 !important;\n            width: 100%;\n            overflow-x: hidden;\n        }\n\n        .scispectrum-tabs-container {\n            width: 100% !important;\n            max-width: 100% !important;\n            margin: 0 !important;\n            border-radius: 0 !important;\n            box-shadow: none;\n        }\n\n        .tab-panels {\n            padding: 15px 8px !important;\n        }\n\n        .tab-label {\n            flex: 1 0 48%;\n            font-size: 0.85rem;\n            padding: 12px 2px;\n            box-sizing: border-box;\n        }\n\n        .faq-item {\n            margin: 0 0 15px 0 !important;\n            padding: 12px !important;\n            width: 100%;\n            box-sizing: border-box;\n        }\n    }\n\u003c\/style\u003e\n\u003cdiv class=\"scispectrum-tabs-container\"\u003e\n\u003cinput id=\"tab1\" class=\"tab-input\" checked name=\"scispectrum-tabs\" type=\"radio\"\u003e \u003cinput id=\"tab2\" class=\"tab-input\" name=\"scispectrum-tabs\" type=\"radio\"\u003e \u003cinput id=\"tab3\" class=\"tab-input\" name=\"scispectrum-tabs\" type=\"radio\"\u003e \u003cinput id=\"tab4\" class=\"tab-input\" name=\"scispectrum-tabs\" type=\"radio\"\u003e\u003cnav class=\"tab-nav\"\u003e\u003clabel class=\"tab-label\" for=\"tab1\"\u003eOverview\u003c\/label\u003e \u003clabel class=\"tab-label\" for=\"tab2\"\u003eSpecifications\u003c\/label\u003e \u003clabel class=\"tab-label\" for=\"tab3\"\u003eFeatures \u0026amp; Benefits\u003c\/label\u003e \u003clabel class=\"tab-label\" for=\"tab4\"\u003eFAQs\u003c\/label\u003e\u003c\/nav\u003e\n\u003cdiv class=\"tab-panels\"\u003e\n\u003cdiv id=\"content1\" class=\"tab-content\"\u003e\n\u003ch3\u003eModel 3371 UV-VIS Spectrophotometer Single Beam – High Accuracy Microprocessor-Based Spectral Analysis System\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eModel 3371 UV-VIS Spectrophotometer Single Beam\u003c\/strong\u003e is a highly precise microcontroller-based laboratory instrument engineered for rapid and dependable spectrophotometric analysis across a wide UV and visible wavelength range. Designed using advanced optical engineering and modern solid-state microprocessor technology, this single beam UV-VIS spectrophotometer delivers excellent analytical accuracy, photometric stability, and repeatable measurement performance for routine and research laboratory applications.\u003c\/p\u003e\n\u003cp\u003eManufactured for professional analytical laboratories, pharmaceutical industries, educational institutions, chemical testing facilities, environmental laboratories, and industrial quality control departments, the Model 3371 combines reliable optical performance with user-friendly operation. The instrument features a high-performance \u003cstrong\u003eCT grating monochromator optical system\u003c\/strong\u003e equipped with a precision 1200 lines\/mm grating element that enhances wavelength accuracy, improves spectral resolution, and minimizes optical interference.\u003c\/p\u003e\n\u003cp\u003eThe spectrophotometer operates efficiently across a broad wavelength range of \u003cstrong\u003e200nm to 1020nm\u003c\/strong\u003e, supporting comprehensive UV and visible spectrum analysis for absorbance, transmittance, and concentration measurements. Its advanced photometric system ensures highly stable operation with exceptional reproducibility, making it suitable for chemical analysis, pharmaceutical testing, water quality monitoring, food analysis, biological studies, and academic laboratory experiments.\u003c\/p\u003e\n\u003cp\u003eThe Model 3371 incorporates several intelligent automation features including automatic 0% and 100% transmission adjustment, automatic zero setting, and precise microprocessor-controlled work pattern selection for Transmittance (T), Absorbance (A), and Concentration (C) analysis modes. The integrated 4-digit LCD display provides clear real-time measurement visibility with simplified operation for laboratory personnel.\u003c\/p\u003e\n\u003cp\u003eDesigned for flexible sample handling, the instrument includes a supplied 4-position cell changer compatible with standard 10mm cuvettes while the large sample compartment accommodates cuvettes ranging from 10mm to 50mm path length. Its stable optical system, rugged construction, and high analytical precision make the Model 3371 UV-VIS Spectrophotometer an ideal solution for laboratories requiring accurate, reliable, and cost-effective UV-visible spectroscopic analysis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content2\" class=\"tab-content\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3371\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEI-DVI \/ ESICO International\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstrument Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Beam Digital UV-VIS Spectrophotometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCT Grating Monochromator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrating Performance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1200 lines\/mm High Performance Element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWavelength Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200nm – 1020nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpectral Bandwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWavelength Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWavelength Repeatability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhotometric Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5%T or 0.003A @ 1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhotometric Repeatability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2%T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStray Light\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.3%T @220nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.001A\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Digit LCD Display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–200%T, -0.000 to 1.999A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTransmittance (T), Absorbance (A), Concentration (C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZero Setting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSample Compartment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLarge compartment for 10mm–50mm path-length cuvettes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCell Changer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Position Cell Changer for 10mm Cuvettes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePharmaceutical Analysis, Chemical Testing, Water Analysis, Food Testing, Research Laboratories, Educational Institutions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApproximate Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 Kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content3\" class=\"tab-content\"\u003e\n\u003ch3\u003eCore Features \u0026amp; User Benefits\u003c\/h3\u003e\n\u003cul class=\"features-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eWide UV-VIS Wavelength Coverage\u003c\/span\u003e The 200nm–1020nm operating range enables versatile UV and visible spectral analysis for pharmaceutical, chemical, biological, and environmental testing applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eHigh Performance CT Grating Monochromator\u003c\/span\u003e Advanced optical monochromator technology with 1200 lines\/mm improves wavelength precision, optical stability, and analytical accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eMicroprocessor Controlled Operation\u003c\/span\u003e The solid-state microcontroller system enhances reproducibility, operational reliability, and measurement consistency during laboratory analysis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eAutomatic Transmission Calibration\u003c\/span\u003e Automatic 0% and 100% transmission adjustment simplifies operation while reducing manual calibration errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eMultiple Analytical Modes\u003c\/span\u003e Supports Transmittance, Absorbance, and Concentration analysis for flexible laboratory workflows and quantitative testing procedures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eExceptional Photometric Stability\u003c\/span\u003e High stability rating of ±0.001A\/h ensures dependable long-duration analytical measurements with minimal drift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eFlexible Sample Accommodation\u003c\/span\u003e The large sample compartment supports cuvettes ranging from 10mm to 50mm path lengths for expanded application versatility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eIntegrated 4 Position Cell Changer\u003c\/span\u003e Improves sample handling efficiency and increases productivity during multi-sample testing workflows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eClear Digital LCD Display\u003c\/span\u003e The 4-digit LCD interface provides easy readability of absorbance, transmittance, and concentration results for convenient laboratory operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content4\" class=\"tab-content\"\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat is the Model 3371 UV-VIS Spectrophotometer used for?\u003c\/p\u003e\n\u003cp\u003eThe Model 3371 UV-VIS Spectrophotometer is designed for accurate spectrophotometric analysis including absorbance, transmittance, and concentration measurements in pharmaceutical, chemical, food, environmental, and research laboratories.\u003c\/p\u003e\n\u003cp\u003eIt is commonly used for quantitative analysis, water testing, pharmaceutical formulation analysis, chemical concentration determination, and educational laboratory applications requiring reliable UV-visible spectroscopy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat wavelength range does the Model 3371 support?\u003c\/p\u003e\n\u003cp\u003eThe Model 3371 operates across a wide wavelength range of 200nm to 1020nm, enabling both ultraviolet and visible spectrum analysis for diverse laboratory applications.\u003c\/p\u003e\n\u003cp\u003eThis extended wavelength coverage supports chemical analysis, biological studies, environmental testing, pharmaceutical research, and industrial quality control measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat are the key advantages of the CT grating monochromator system?\u003c\/p\u003e\n\u003cp\u003eThe CT grating monochromator with 1200 lines\/mm improves wavelength precision, enhances optical stability, and reduces stray light interference for accurate spectrophotometric analysis.\u003c\/p\u003e\n\u003cp\u003eThis advanced optical configuration contributes to better analytical reproducibility and reliable performance during routine and research laboratory measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhich analytical modes are available in the Model 3371?\u003c\/p\u003e\n\u003cp\u003eThe spectrophotometer supports Transmittance (T), Absorbance (A), and Concentration (C) operational modes for flexible analytical testing.\u003c\/p\u003e\n\u003cp\u003eThese measurement modes enable laboratories to perform quantitative concentration analysis, optical transmission testing, and absorbance-based spectroscopic measurements using a single instrument platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eCan the Model 3371 accommodate different cuvette sizes?\u003c\/p\u003e\n\u003cp\u003eYes, the Model 3371 includes a large sample compartment capable of accommodating cuvettes ranging from 10mm to 50mm path lengths, providing enhanced application flexibility.\u003c\/p\u003e\n\u003cp\u003eThe instrument is also supplied with a 4-position 10mm cell changer for efficient multi-sample handling and improved laboratory productivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Electronics India","offers":[{"title":"Default Title","offer_id":51461017862390,"sku":"EI-DVI-UV-VIS-SPM-3371","price":147500.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/6535\/1158\/files\/EI-DVI_Model_3371_UV_-_VIS_Spectrophotometer__60599.1760187180.386.513.jpg?v=1786599246","url":"https:\/\/scispectrum.in\/products\/ei-dvi-model-3371-uv-vis-spectrophotometer","provider":"SciSpectrum Lab Essentials","version":"1.0","type":"link"}