{"product_id":"arcus-sk80-f","title":"SK80-F - KNX Fill Level Control Unit for Water and Oil Tanks, Without Sensor Head","description":"\u003cp\u003eThe SK80-F is a KNX fill-level control unit for water cisterns and oil tanks, supplied without a sensor head so the ultrasonic or hydrostatic probe can be chosen to suit the tank. It displays level, distance, volume and percentage locally and sends the values to KNX, with a potential-free switch output tied to upper and lower limits.\u003c\/p\u003e\u003cp\u003eThe unit draws all its power from the KNX bus, including the supply for the sensor head, and comes in a 120 x 90 x 50 mm (4.72 x 3.54 x 1.97 in) IP65 housing.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFill level in m³, level, distance and %, resolution 1 mm (0.04 in); integrated display\u003c\/li\u003e\n\u003cli\u003eSensor inputs 0-1 V, 0-5 V, 0-10 V, 4-20 mA and Modbus RTU RS485\u003c\/li\u003e\n\u003cli\u003eSupports ultrasonic heads (300 to 5000 mm (11.8 to 196.9 in)) and hydrostatic heads (0 to 5000 or 0 to 10,000 mm (0 to 393.7 in))\u003c\/li\u003e\n\u003cli\u003ePotential-free limit-value switch output (20 mA)\u003c\/li\u003e\n\u003cli\u003eWall mount, grey plastic housing with clear cover, 120 x 90 x 50 mm (4.72 x 3.54 x 1.97 in), IP65\u003c\/li\u003e\n\u003cli\u003eBus powered (approx. 400 mW), no auxiliary supply; ETS application SK80_F\u003c\/li\u003e\n\u003cli\u003eNot for corrosive or explosive environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eArticle no.\u003c\/th\u003e\n\u003ctd\u003e30807000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKNX bus voltage\u003c\/th\u003e\n\u003ctd\u003eKNX 21-32 VDC, approx. 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower consumption\u003c\/th\u003e\n\u003ctd\u003eapprox. 400 mW from KNX bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAuxiliary supply\u003c\/th\u003e\n\u003ctd\u003eNone – no additional voltage required (sensor head fed 13 V \/ 20 mA max from the unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasuring\u003c\/th\u003e\n\u003ctd\u003eFill level in m3, level, distance and %; resolution 1 mm (0.04 in); sensor accuracy 0.5 % FS; ultrasonic 300-5000 mm (11.8 to 196.9 in), hydrostatic 0-5000 \/ 0-10000 mm (0 to 393.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs \/ outputs \u0026amp; connections\u003c\/th\u003e\n\u003ctd\u003eSensor inputs 0-1 V, 0-5 V, 0-10 V, 4-20 mA (100 Ohm shunt), Modbus RTU RS485; potential-free switch output 20 mA, 5-230 V AC\/DC tied to upper\/lower limits; KNX terminal red\/black; integrated display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection rating\u003c\/th\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e120 x 90 x 50 mm (4.72 x 3.54 x 1.97 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eWall\/surface mount with screws; grey plastic housing with clear cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e-20 to +55 °C (-4 to 131 °F) (storage -20 to +85 °C (-4 to 185 °F)), 0-95 % RH non-condensing; ultrasonic head -10..+50 °C (14 to 122 °F), hydrostatic head 0..+60 °C (32 to 140 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eApplication note:\u003c\/strong\u003e Measuring probe not included; pair the unit with a compatible ultrasonic or hydrostatic sensor head.\u003c\/p\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/3000_S8_Spezielle_Sensorik\/3730_SK80-F-x\/3730_e2_SK80-F.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/3000_S8_Spezielle_Sensorik\/3000_S8_allgemein\/SK80_F.knxprod.zip\" target=\"_blank\" rel=\"noopener\"\u003eETS application\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e(CE certified; not UL\/NRTL listed — verify local code requirements before specifying in US installations)\u003c\/em\u003e\u003c\/p\u003e","brand":"ARCUS EDS","offers":[{"title":"Default Title","offer_id":50554331398400,"sku":"30807000","price":366.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/4161\/5360\/files\/SK80-F_Hauptbild_englisch.png?v=1791428643","url":"https:\/\/www.knxsupply.com\/products\/arcus-sk80-f","provider":"KNX Supply","version":"1.0","type":"link"}