{"product_id":"uv-doas-gas-analyzer","title":"UV-DOAS Gas Analyzer","description":"\u003cstyle\u003e\n  .uv-gas-analyzer-section {\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 40px 20px;\n    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;\n    color: #333;\n    line-height: 1.6;\n  }\n  \n  .uv-gas-analyzer-section h1 {\n    font-size: 2.5em;\n    color: #1a1a1a;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  \n  .uv-gas-analyzer-section .subtitle {\n    font-size: 1.2em;\n    color: #666;\n    margin-bottom: 30px;\n    font-weight: 300;\n  }\n  \n  .uv-gas-analyzer-section h3 {\n    font-size: 1.5em;\n    color: #2c3e50;\n    margin-top: 30px;\n    margin-bottom: 15px;\n    border-bottom: 2px solid #e0e0e0;\n    padding-bottom: 10px;\n  }\n  \n  .uv-gas-analyzer-section h4 {\n    font-size: 1.2em;\n    color: #34495e;\n    margin-top: 25px;\n    margin-bottom: 12px;\n    font-weight: 600;\n  }\n  \n  .uv-gas-analyzer-section p {\n    margin-bottom: 12px;\n    text-align: justify;\n  }\n  \n  .uv-gas-analyzer-section ul {\n    list-style-type: none;\n    padding-left: 0;\n  }\n  \n  .uv-gas-analyzer-section ul li {\n    padding: 8px 0 8px 25px;\n    position: relative;\n  }\n  \n  .uv-gas-analyzer-section ul li:before {\n    content: \"▸\";\n    position: absolute;\n    left: 0;\n    color: #e74c3c;\n    font-weight: bold;\n  }\n  \n  .uv-gas-analyzer-section table {\n    width: 100%;\n    border-collapse: collapse;\n    margin-top: 20px;\n    font-size: 0.95em;\n    box-shadow: 0 2px 8px rgba(0,0,0,0.1);\n  }\n  \n  .uv-gas-analyzer-section th {\n    background-color: #2c3e50;\n    color: white;\n    padding: 12px;\n    text-align: left;\n    font-weight: 600;\n  }\n  \n  .uv-gas-analyzer-section td {\n    padding: 10px 12px;\n    border-bottom: 1px solid #e0e0e0;\n  }\n  \n  .uv-gas-analyzer-section tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  \n  .uv-gas-analyzer-section tr:hover {\n    background-color: #f1f3f4;\n  }\n  \n  .highlight-box {\n    background: #f8f9fa;\n    border-left: 4px solid #e74c3c;\n    padding: 20px;\n    margin: 20px 0;\n    border-radius: 0 4px 4px 0;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"uv-gas-analyzer-section\"\u003e\n  \u003ch1\u003eUV-DOAS Gas Analyzer\u003c\/h1\u003e\n  \u003cp class=\"subtitle\"\u003eHigh-Precision Ultraviolet Differential Optical Absorption Spectroscopy for Emission Monitoring\u003c\/p\u003e\n  \n  \u003ch3\u003eFeatures\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eIntegrated UV spectrometer, optical gas cell, UV light source, and proprietary algorithm — all independently designed and manufactured by NWSPEC\u003c\/li\u003e\n    \u003cli\u003eHigh spectral resolution for accurate gas identification\u003c\/li\u003e\n    \u003cli\u003eExcellent thermal stability and vibration resistance for harsh industrial environments\u003c\/li\u003e\n    \u003cli\u003eModular design with optional spectral range and absorption path length configurations\u003c\/li\u003e\n    \u003cli\u003eCompact structure enables easy assembly and system integration\u003c\/li\u003e\n    \u003cli\u003eSimple USB-based software upgrades\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eApplications\u003c\/h3\u003e\n  \u003cdiv class=\"highlight-box\"\u003e\n    \u003cp\u003eReal-time analysis of UV-absorbing gases including \u003cstrong\u003eSO₂, NO, and NO₂\u003c\/strong\u003e for:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eIndustrial flue gas emission monitoring\u003c\/li\u003e\n      \u003cli\u003eAutomobile exhaust analysis\u003c\/li\u003e\n      \u003cli\u003eMarine vessel emissions compliance\u003c\/li\u003e\n      \u003cli\u003eOdorous gas detection and control\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eParameter\u003c\/th\u003e\n        \u003cth\u003eSpecification\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eTarget Gases\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eSO₂, NO\u003c\/td\u003e\n        \u003ctd\u003eExpandable to NO₂\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eMeasurement Principle\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eDOAS (Differential Optical Absorption Spectroscopy)\u003c\/td\u003e\n        \u003ctd\u003eUV wavelength range\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e0 – 200 ppm (SO₂, NO)\u003c\/td\u003e\n        \u003ctd\u003eCustom ranges available\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eDetection Limit\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e0.01 ppm (SO₂\/NO)\u003c\/td\u003e\n        \u003ctd\u003eHigh sensitivity detection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eLinearity Error\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e≤ ±1.5% F.S.\u003c\/td\u003e\n        \u003ctd\u003eFull scale accuracy\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eRepeatability\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e≤ ±0.5% F.S.\u003c\/td\u003e\n        \u003ctd\u003ePrecision measurement\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eZero Drift\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e≤ ±1.5% F.S.\/7 days\u003c\/td\u003e\n        \u003ctd\u003eLong-term stability\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eSpan Drift\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e≤ ±1.5% F.S.\/7 days\u003c\/td\u003e\n        \u003ctd\u003eMinimal calibration required\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eResponse Time (T90)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u0026lt; 30 seconds\u003c\/td\u003e\n        \u003ctd\u003eRapid detection capability\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eSample Flow Rate\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e1.0 L\/min (optimal)\u003c\/td\u003e\n        \u003ctd\u003eContinuous flow operation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eDigital Outputs\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e2 source contacts + 3 dry contacts\u003c\/td\u003e\n        \u003ctd\u003eProgrammable max\/min alarms\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eCommunication Interface\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eModbus RTU (RS485 default \/ RS232 optional)\u003c\/td\u003e\n        \u003ctd\u003eIndustrial standard protocol\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e7-inch capacitive touchscreen, RGB color\u003c\/td\u003e\n        \u003ctd\u003eLinux-based interface\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e220 VAC, 50 Hz\u003c\/td\u003e\n        \u003ctd\u003e\u0026lt; 2A peak current\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u0026lt; 60 W (average)\u003c\/td\u003e\n        \u003ctd\u003eEnergy efficient\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e0°C to +40°C\u003c\/td\u003e\n        \u003ctd\u003eIndustrial environment rated\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e0 – 95% RH (non-condensing)\u003c\/td\u003e\n        \u003ctd\u003eWide humidity tolerance\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eAtmospheric Pressure\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e86 – 108 kPa\u003c\/td\u003e\n        \u003ctd\u003eAltitude compensation\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \n  \u003ch3\u003eSystem Architecture\u003c\/h3\u003e\n  \u003cp\u003eThe analyzer employs a robust UV-DOAS configuration featuring NWSPEC's proprietary spectrometer design, high-stability deuterium or xenon light source, and temperature-controlled optical gas cell. The integrated Linux-based control system provides local data logging, real-time concentration display, and seamless SCADA integration via Modbus protocols.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NWSPEC","offers":[{"title":"Default Title","offer_id":47512870813915,"sku":null,"price":1000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/1722\/0315\/files\/GasAnalyzerGA2000.png?v=1756792796","url":"https:\/\/nwspec.com\/en-cn\/products\/uv-doas-gas-analyzer","provider":"NWSPEC","version":"1.0","type":"link"}