{"product_id":"hegweln-asd-75-flame-monitor","title":"HEGWELN ASD-75 Flame Monitor","description":"\u003cp\u003eThe \u003cstrong\u003eHegwein ASD-75\u003c\/strong\u003e (often paired with or integrated alongside the \u003cstrong\u003eD-GF 75\u003c\/strong\u003e series), cataloged as the \u003cstrong\u003eASD-75\u003c\/strong\u003e \/ \u003cstrong\u003eD-GF 75\u003c\/strong\u003e Burner Control and Flame Monitor, operates as a safety-critical hardware component for controlling, monitoring, and managing industrial burners. The hardware handles automatic ignition sequencing, pre-purging, and continuous ionization or optical flame monitoring to ensure safe burner operations within processing furnaces and boiler plants.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eASD-75 \/ D-GF 75 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHegwein (Durag Group)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eASD-75: 113 x 103 x 118 mm\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e \u003c\/p\u003e\n\u003cp\u003eD-GF 75: 91 x 103 x 118 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Style\u003c\/td\u003e\n\u003ctd\u003eDIN rail TS35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Mode\u003c\/td\u003e\n\u003ctd\u003eIntermittent operation and continuous operation (variant dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Safety\u003c\/td\u003e\n\u003ctd\u003eSelf-monitoring and fail-safe design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Display\u003c\/td\u003e\n\u003ctd\u003eFront-panel diagnostic LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlame Failure Response Time (FFRT)\u003c\/td\u003e\n\u003ctd\u003eConfigurable: 1 s, 2 s, 3 s, or 5 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Purge Time\u003c\/td\u003e\n\u003ctd\u003eConfigurable: 0 s, 30 s, 60 s, or 120 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Start-Up Safety Time\u003c\/td\u003e\n\u003ctd\u003eConfigurable: 3 s, 5 s, 10 s, or 15 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlame Monitoring Input\u003c\/td\u003e\n\u003ctd\u003eExternal flame monitor \/ Ionization electrode connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlame Signal Output (ASD 75)\u003c\/td\u003e\n\u003ctd\u003e90 to 110 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Power Supply\u003c\/td\u003e\n\u003ctd\u003e115 \/ 230 VAC, 20 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDegree of Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBurner Management Logic and Purge Velocities\u003c\/h3\u003e\n\u003cp\u003eThe internal microprocessing matrix implements a deterministic state machine to manage furnace air exchange and ignition sequencing safely. During the startup sequence, the pre-purge timing block (configurable up to 120 seconds) forces combustion air fans to clear any trapped residual fuel gases out of the stack before firing can initiate. The system maintains a self-monitoring, fail-safe internal loop that cross-checks the ignition and ionization tracking matrices. If the Flame Failure Response Time (FFRT) limit is breached during active firing, the module instantly drops its safety relays to block the fuel valve line, preventing unburned fuel accumulation.\u003c\/p\u003e","brand":"HEGWELN","offers":[{"title":"Default Title","offer_id":45070405632115,"sku":"ASD-75","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-05_14-15-11_49f3e92e-33ab-46e8-b790-9c961f8cdf6f.png?v=1780642980","url":"https:\/\/www.dcssupplier.com\/products\/hegweln-asd-75-flame-monitor","provider":"DcsSupplier Limited","version":"1.0","type":"link"}