{"product_id":"fkmb-fuellstand-grenzwertschalter-fuer-schuettgueter","title":"FKMB Level limit switch for bulk solids","description":"\u003cp\u003eProbe tube and silo wall are the two electrodes of a capacitor. With air between them the capacitance has a given value; when bulk material with a higher dielectric constant replaces the air, the capacitance rises and the charging time with it. The electronics evaluate that change and switch the relay contact when the adjusted limit is reached. The probe is a zinc-plated steel tube of 1 inch and 1000 mm carried by a Pythagoras ceramic; the angle between probe and body is adjustable between 90 and 180 degrees. The device is flanged to the silo with DN100 and a mating flange welded to the wall, which makes it suitable for steel silos and steel hoppers; with a modified mounting — a counter electrode of grating — concrete silos are possible too. Inside the silo it works up to +400 °C. The output is one potential-free change-over contact; a red LED shows the switching state.\u003c\/p\u003e\n\u003ch3\u003eMeasurement and output\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCapacitive against the silo wall\u003c\/li\u003e\n\u003cli\u003eBulk goods with dielectric constant \u0026gt; 2.5\u003c\/li\u003e\n\u003cli\u003eInitial capacitance adjustable to approx. 400 pF\u003c\/li\u003e\n\u003cli\u003eSwitching range 0 … 0.5 m\u003c\/li\u003e\n\u003cli\u003eOutput 1 potential-free change-over contact\u003c\/li\u003e\n\u003cli\u003e250 V AC \/ 4 A, 100 V DC \/ 4 A\u003c\/li\u003e\n\u003cli\u003eSwitching delay approx. 0.5 s plus 1.5 s\u003c\/li\u003e\n\u003cli\u003eRed LED shows the switching state\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDevice and mounting\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProcess connection flange DN100\/114\u003c\/li\u003e\n\u003cli\u003eMating flange DN100 to weld onto the silo\u003c\/li\u003e\n\u003cli\u003eProbe steel tube 1\u0026quot;, zinc plated, 1000 mm\u003c\/li\u003e\n\u003cli\u003eCarrier Pythagoras ceramic Ø 65 × 283 mm\u003c\/li\u003e\n\u003cli\u003eProbe angle 90 … 180°, adjustable\u003c\/li\u003e\n\u003cli\u003eEnclosure diecast aluminium, IP 65\u003c\/li\u003e\n\u003cli\u003eCable entry 1 × M 20 × 1.5, up to 2.5 mm²\u003c\/li\u003e\n\u003cli\u003eIn the silo 0 … +400 °C, weight approx. 20 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll technical data, dimensions and available versions are listed in the datasheet for download.\u003c\/p\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57504498745670,"sku":"FKMB","price":1449.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/FKMB_produkt.webp?v=1790930550","url":"https:\/\/octogon.org\/en\/products\/fkmb-level-limit-switch-for-bulk-solids","provider":"octogon GmbH","version":"1.0","type":"link"}