LMF Vishay Sfernice Conductive Plastic Motion Transducer Elements (KIT) FEATURES * Large Measurement Range 25mm to 1000mm * High Accuracy 1% down to 0.025% * Long Life - 50 000 000 cycles * Simple and Flexible Mounting * Essentially Infinite Resolution Made in two separate parts: - the sensing element - the wiper. Special designs available on request. The LMF is a reduced bulk, precision motion transducer, designed for easy integration into equipment . ELECTRICAL SPECIFICATIONS Theoretical electrical angle (TET = E) From 25mm to 1000mm in increments of 25mm 1%; 0.1% Independent linearity (over TET) on request 0.05% for E 100mm Actual electrical travel (AET) Ohmic value from 400/cm to 2k/cm Resistance tolerance at 20C 20% 0.01% Repeatability Maximum power rating Wiper current Load resistance Insulation resistance Dielectric strength 0.025% for E 200mm AET = TET + 2mm 0.05W/cm at 40C 0W at 85C recommended: a few A 1mA max. continuous minimum 103 x RT 1000M, 500VDC 750VRMS 50Hz MECHANICAL SPECIFICATIONS Support of element on request Wiper (non insulated) on request fiberglass epoxy plastic moulding precious metal multifinger insulated Terminals on request soldering pads by wires Fixing on request glued: double face Isotac screwed: holes in the support PERFORMANCE Operating life Temperature range www.vishay.com 22 50 million cycles typical - 55C + 125C Document Number: 54009 Revision 14-Dec-01 LMF Conductive Plastic Motion Transducer Elements (KIT) Vishay Sfernice DIMENSIONS in millimeters, general tolerance 0.2mm 0.3 STANDARD MODEL: LMF...W02851 0.2 5.8 Working position 1.6 L = TET + 18 max Wiper travels Collector track 2 2.4 Soldering pads 13 15 8 5.2 7 2 3.5 2.4 6.35 Resistive track TET = E 1 11.15 Silver area 10 0.5 AET = TET + 2 12.2 Silver area EXAMPLES OF SPECIAL DESIGNS ORDERING INFORMATION KIT LM F 3 D 103 SERIES MODEL CONDUCTOR THEORETICAL ELECTRICAL TRAVEL Times 25mm LINEARITY OHMIC VALUE First 2 digits are significant numbers 3rd digit indicates number of zeros F: Plastic S: Serigraphy Document Number: 54009 Revision 14-Dec-01 A: 1% D: 0.1% E: 0.05% F: 0.025% W... MODIFICATIONS Special feature code number www.vishay.com 23