PROCESSAUTOMATION Float Switch LFL2 - switching element: micro switch 135 - limit value detection for liquids - cylinder type: small diameter, mounting through G1 tap hole possible - ball type: high buoyancy Cylinder type LFL2-CK Cylinder type LFL2-CK-U-PVC3 LFL2-CK-U-PVC5 LFL2-CK-U-CSM3 LFL2-CK-U-CSM5 Ball type LFL2-BK-U-PVC3 LFL2-BK-U-PVC5 LFL2-BK-U-CSM3 LFL2-BK-U-CSM5 Function principle The micro switch (change over) is build into a PP-float and switches when out Ball type LFL2-BK of the horizontal line. The switching ball is running on-axis and changes the state of the micro switch. Mounting The float is mounted either from side- wards through a cable gland G1A into the vessel or by means of an additional mass, or rods (e.g. float switch combi- nation) from the top. The pivot of the cable should always be horizontal. The minimum length of the cable between mounting and float is depending of the cable material (see technical data). Accessories: cable gland Types Connection LFL 2 - K - U - cable colors rising level cable length black-brown = contact opened cable material black-blue = contact closed float type Subject to reasonable modifcations due to technical advances. Copyright by Pepperl+Fuchs, Printed in Germany Pepperl+Fuchs Group Tel.: Germany (6 21) 7 76-0 USA (3 30) 4 25 35 55 Singapore 7 79 90 91 Internet PROCESSAUTOMATION Float Switch LFL2 Technical data Switching element Micro switch with switching ball Switching function Changeover max. switching voltage AC 250 V, DC 250 V max. switching current 3 (1) A Switching angle upper switching point +18( 6), lower switching point +5(3), against the horizontal Process conditions Temperature LFL2-K-U-PVC -20 C ... +70 C (253 K ... 343 K) LFL2-K-U-CSM -20 C ... +100 C (253 K ... 373 K) Pressure (20 C) Cylinder type 3 bar Ball type 2 bar Density 3 Cylinder type 0.8 g/cm 3 Ball type 0.6 g/cm Material of the float PP (Polypropylene) Cable Material and lenght 2 LFL2-K-U-PVC3 PVC-cable, highly flexible (3 x 0.75 mm ), 3 m 2 LFL2-K-U-PVC5 PVC-cable, highly flexible (3 x 0.75 mm ), 5 m 2 LFL2-K-U-CSM3 CSM-cable (Hypalon), highly flexible (3 x 0.75 mm ), 3 m 2 LFL2-K-U-CSM5 CSM-cable (Hypalon), highly flexible (3 x 0.75 mm ), 5 m Application range PVC preferably for water, waste water, and aggressive liquids CSM preferably for most acids and lies Minimum length of the cable between mounting and float PVC 50 mm CSM 100 mm Mounting from outside, sidewards with cable gland (cylinder type) from top with additional mass or float switch combination Accessories Ordering number LFL-Z131 Cable gland G1A, PVC LFL-Z132 Cable gland G1A, brass LFL-Z161 Cable gland G2A, PVC LFL-Z231 Lock nut, G1A, PVC LFL-Z31 Counter weight 2 LFL-Z431 Cable gland 1 NPT, PVC LFL-Z432 Cable gland 1 NPT, brass LFL-Z461 Cable gland 2 NPT, PVC This device may be used with any circuit, if this circuit complies with the connection values of the switching element. Subject to reasonable modifcations due to technical advances. Copyright by Pepperl+Fuchs, Printed in Germany Pepperl+Fuchs Group Tel.: Germany (6 21) 7 76-0 USA (3 30) 4 25 35 55 Singapore 7 79 90 91 Internet