{"product_id":"krm-x-2-dz-0-16","title":"KRM-X-2-DZ 0.16","description":"\u003cp\u003e\u003cstrong\u003eOppermann KRM-2-DZ 0.16\u003cbr\u003e\u003c\/strong\u003e24 V AC\/DC with DIBt approval, for controlling fire\/smoke protection dampers\u003c\/p\u003e\u003cp\u003eincl. sampling tube LKR 0.16 m (optionally available with sampling tube 1.5 m or 3.0 m)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDetector type: Scattered light RM 3.3 (ALK-E)\u003cbr\u003ePower supply: 24 V AC\/DC +15% \/ -10%\u003cbr\u003eRated current: 140 mA\u003cbr\u003eRelay outputs: potential-free\u003cbr\u003eAlarm relay locked:\u003cbr\u003e1 changeover contact, 8 A, 250 V AC 1 normally closed contact, 8 A, 250 V AC or 24 V DC\u003cbr\u003eContamination relay: 1 normally closed contact, 6 A, 250 V AC or 24 V DC\u003cbr\u003eSystem fault relay: 1 normally closed contact, 6 A, 250 V AC or 24 V DC\u003cbr\u003eAirflow relay: 1 normally closed contact, 6 A, 250 V AC or 24 V DC\u003cbr\u003eOperating temperature: -20 °C - +50 °C\u003cbr\u003ePermissible flow: 1 - 20 m\/s\u003cbr\u003ePermissible humidity: 10 - 95% non-condensing\u003cbr\u003eProtection class: IP 54, with WDG IP 65\u003cbr\u003eApprovals\/Tests: DIBt approval Z-78.6-200, VdS recognition G210059, FprEN5427\u003cbr\u003eLED Display: Contamination level %, flashes \u0026gt; 70%\u003cbr\u003eLED in housing:\u003cbr\u003egreen = operation\u003cbr\u003eblue = missing airflow\u003cbr\u003eyellow = fault, electronics, smoke detector defective\u003cbr\u003ered = smoke alarm, including contamination \u0026gt; 99%, flashes when attempting to unlock if the detector chamber is not yet empty\u003cbr\u003eAdapter housing: ABS\u003cbr\u003eAir sampling tube:\u003cbr\u003eAluminum\/plastic\u003cbr\u003eShortest length 160 mm\u003cbr\u003eStandard length 600 mm\u003cbr\u003eDimensions: 257 x 166 x 77 mm (L x W x H)\u003cbr\u003eConnection gland: 3 x M16\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe KRM-DZ duct smoke detector was developed for smoke detection in ventilation ducts. It represents a combination of a smoke detector with an adapter system, whose sampling tube and housing have been specially adapted for optimal airflow through the smoke detector.\u003c\/p\u003e\u003cp\u003eThe air duct sampling tube transports the air within the air duct over the entire length of the tube via the detector chamber back into the air duct. When smoke is detected, the detector reacts immediately and triggers an alarm. Over time, the detector becomes contaminated. Due to the alarm threshold tracking, the sensitivity remains the same until total contamination. From 70% contamination, the detector signals dirt. If the detector is not replaced, a smoke alarm will be triggered from 99% contamination. The contamination level is signaled on a two-line LED display, which flashes at \u0026gt; 70%.\u003c\/p\u003e\u003cp\u003eTo monitor its functionality, the device is equipped with electronic airflow monitoring, which illuminates a blue LED if the flow is \u0026lt; 1 m\/s. The fault LED illuminates if the smoke detector or electronics are defective, or if the smoke detector is missing. The smoke alarm or a fault must be unlocked using the reset button. The same button can also be used for a function test.\u003c\/p\u003e\u003cp\u003eActuation acts like a smoke alarm. Furthermore, the same function is achieved on restart if the bridge between terminals 9 and 10 is opened (remote unlocking).\u003c\/p\u003e","brand":"IT-AT","offers":[{"title":"Default Title","offer_id":52584567832923,"sku":"52019","price":910.4,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/0742\/7931\/files\/52001-24-scaled_c6aa1cc5-a2b6-43ec-b876-e68cd414bc12.jpg?v=1773400106","url":"https:\/\/it-at.de\/en\/products\/krm-x-2-dz-0-16","provider":"IT-AT","version":"1.0","type":"link"}