{"product_id":"digital-flame-photometer-electronics-india-381-ei-dvi","title":"Model 381 Digital Flame Photometer (EI-DVI) | Accurate Na, K, Ca, Li Analysis","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e\n    \/* SciSpectrum Color Scheme \u0026 Basics *\/\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 handling *\/\n    .tab-input {\n        display: none;\n    }\n\n    \/* Tab navigation style *\/\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    \/* Active tab styling *\/\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 content panels *\/\n    .tab-panels {\n        padding: 30px;\n    }\n\n    .tab-content {\n        display: none;\n        animation: fadeIn 0.5s ease;\n    }\n\n    \/* Active panel handling *\/\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    \/* Utility Classes *\/\n    h3 { color: var(--primary-blue); margin-top: 0; margin-bottom: 15px; }\n    \n    \/* Specifications Table Style *\/\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, .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 \u0026 Benefits List Style *\/\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 Style *\/\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    \/* Mobile Responsiveness *\/\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\u003eDigital Flame Photometer Model 381 – High-Precision Alkali Metal Analysis System\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eElectronics India Digital Flame Photometer Model 381\u003c\/strong\u003e (deeply integrated within the renowned Deep Vision series as Model EI-DVI) is a premium analytical instrument engineered for high-precision, rapid determination of specific alkali and alkaline earth metals. Purpose-built as an accessible yet scientifically authoritative solution, this clinical and agricultural flame photometer provides highly accurate analysis of Sodium (Na) and Potassium (K) as core operations, with additional modular, optional capabilities for assessing Calcium (Ca) and Lithium (Li) concentrations.\u003c\/p\u003e\n\u003cp\u003eDesigned for multi-sector utility across soil testing laboratories, agricultural research facilities, industrial quality control clinics, and academic institutions, the Model 381 splits operational workloads across a specialized dual-component framework. The system consists of an advanced Main Unit coupled with a heavy-duty, oil-free Mini Compressor Unit. By feeding compressed, regulated air through an axial-flow concentric nebulizer, the instrument converts liquid samples into a uniform, fine mist sprayed directly into an optimized gas flame, guaranteeing immaculate flame stability and unmatched analytical reproducibility.\u003c\/p\u003e\n\u003cp\u003eOperating via isolated narrow-band interference glass filters on a convenient rotating disc, the Digital Flame Photometer isolates element-specific atomic emission wavelengths with absolute fidelity. The resulting light falls onto a highly sensitive Silicon Photodiode detector, translating clinical and geochemical interactions into clear parts-per-million (ppm) or meq metrics on a bright 2½ Digit, 7-Segment LED display readout. Complete with a safe electronic auto-ignition system, the Electronics India Model 381 represents the pinnacle of operational simplicity, rugged durability, and technical precision for contemporary analytical workflows.\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\u003eParameter \/ Feature\u003c\/th\u003e\n\u003cth\u003eDetails \u0026amp; Engineering Thresholds\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModel 381 (EI-DVI Deep Vision Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Flame Photometer (Analytical Instrument)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCore Elements Measured\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSodium (Na) and Potassium (K)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptional Elements Measured\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCalcium (Ca) and Lithium (Li)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range (Na, K)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 100 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range (Ca)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 – 100 ppm (Optional capability)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range (Li)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 – 100 ppm (Optional capability)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalytical Sensitivity (Na, K)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalytical Sensitivity (Ca, Li)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 ppm (Optional capability)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Accuracy Limits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 2% up to 40 ppm; ± 5% above 40 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstrument Repeatability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 2 Counts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay \/ Readout Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2½ Digit, 7-Segment High-Visibility LED Readout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Sensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-Sensitivity Silicon Photodiode Detector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWavelength Isolation System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNarrow band interference glass filters mounted on rotating disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNebulizer Assembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack bakelite, axial flow type, concentric non-corrosive structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlame System Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiquid Petroleum Gas (LPG) mixed with dry oil-free air\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAir Supply Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal oil-free mini compressor unit equipped with an active pressure regulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCombustion Control Matrix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLPG gas stream controlled via built-in precision regulator valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIgnition Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn-built electronic auto-ignition mechanism activated by a single panel switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEquipment Warm-Up Duration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V ± 10% AC, 50 Hz Single Phase Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApproximate Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Watts (W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Unit Scale (L x B x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e375 mm x 245 mm x 220 mm (Approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Unit Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 kg (Approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressor Scale (L x B x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e290 mm x 255 mm x 210 mm (Approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressor Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.0 kg (Approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Combined Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15.0 to 20.0 kg (Total packaged array)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndia (Manufacturer: Electronics India)\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\"\u003eHigh-Sensitivity Silicon Photodiode Element\u003c\/span\u003e Captures subtle atomic emission wavelengths with high fidelity, achieving an equipment accuracy threshold of ±2% for critical low-range clinical and soil assays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eNarrow-Band Interference Glass Filters\u003c\/span\u003e Mounted on an accessible rotating selector disc to block background light distortion, ensuring high isolation of specific Na, K, Ca, or Li spectral signatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eIntegrated One-Touch Electronic Auto-Ignition\u003c\/span\u003e Features an in-built high-voltage electronic strike system activated by a panel switch, eliminating external open-flame lighting risks for improved operator safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eConcentric Non-Corrosive Axial Nebulizer\u003c\/span\u003e Molded from premium black bakelite to resist acidic, basic, or saline sample degradation while reliably maintaining an ultra-fine sample mist stream.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eOil-Free Mini Compressor and Regulator Setup\u003c\/span\u003e The independent compressor delivers a continuous flow of dry, oil-free compressed air, preventing oil-mist contamination from destabilizing analytical reads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eOptimized Multi-Sector Analytical Flexibility\u003c\/span\u003e Engineered to measure concentration inputs in ppm or meq scales, providing a versatile platform for agricultural soil assessment, food testing, and chemical quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content4\" class=\"tab-content\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat alkali metals can the Digital Flame Photometer Model 381 accurately measure?\u003c\/p\u003e\n\u003cp\u003eThe Digital Flame Photometer Model 381 by Electronics India provides high-precision determination of Sodium (Na) and Potassium (K) alkali metals within a standard range of 0–100 ppm. The system also supports modular, optional upgrades for analyzing Calcium (Ca) and Lithium (Li) concentrations based on custom testing requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhy is the separate oil-free mini compressor unit critical for the operation of Model 381?\u003c\/p\u003e\n\u003cp\u003eThe independent mini compressor unit is critical because it supplies clean, dry, oil-free compressed air necessary to atomize liquid samples safely through the nebulizer. Its built-in pressure regulator prevents pressure fluctuations from destabilizing the flame profile, ensuring stable data output on the LED display panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat is the accuracy and repeatability profile of this Electronics India flame photometer?\u003c\/p\u003e\n\u003cp\u003eThe Digital Flame Photometer Model 381 delivers an accuracy margin of ±2% for sample concentration levels up to 40 ppm, and ±5% for elements exceeding 40 ppm. This performance is paired with an equipment repeatability index of ±2 counts, providing dependable consistency for daily testing runs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eHow does the auto-ignition system function on the Model 381 Main Unit?\u003c\/p\u003e\n\u003cp\u003eThe Model 381 contains an advanced in-built electronic auto-ignition mechanism that ignites the LPG and compressed air stream at the press of a front-panel switch. This internal system eliminates manual lighting steps, improving safety and accelerating laboratory startup routines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat kind of maintenance is required for the concentric black bakelite nebulizer?\u003c\/p\u003e\n\u003cp\u003eThe axial-flow concentric nebulizer is constructed from non-corrosive black bakelite to resist deterioration from chemical reagents. To maintain a fine mist spray and clear suction paths into the mixing chamber, users should flush the system with distilled water after processing salt-heavy samples.\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":51461014487286,"sku":"EI-FLM-381","price":58410.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/6535\/1158\/files\/Model_381_EI-DVI_DIGITAL__79453.1759754183.386.513.jpg?v=1786599162","url":"https:\/\/scispectrum.in\/products\/digital-flame-photometer-electronics-india-381-ei-dvi","provider":"SciSpectrum Lab Essentials","version":"1.0","type":"link"}