139 l vish ay sfernice document number: 54015 revision 14-dec-01 www.vishay.com 37 for technical questions, contact sfer@vishay .com features ? measurement range 25mm to 3000mm ? long life ? high accuracy 1% down to 0.025% ? excellent repeatability ? essentially infinite resolution ? simple mounting ? actuation tolerant to some misalignment ? reduced bulk theoretical electrical travel (tet = e) from 25mm to 3000mm in increments of 25mm independent linearity (over tet) 1 % - 0.1 % on request 0.05 % for e 100mm 0.025 % for e 200mm actual electrical travel (aet) aet = e + 1.5mm min. ohmic value (r t ) 400 ? /cm to 2k ? /cm resistance tolerance at 20c 20% repeatability 0.01% maximum power rating 0.05w/cm at 70c, 0w at 125c w iper current recommended: a few a, 1ma max. continuous load resistance minimum 10 3 x r t insulation resistance 1000m ? 500vdc dielectric strength 1000vrms 50hz mechanical travel (mt) see dimensions table 1 housing anodized aluminum operating force 2.5n typical coupling self alignment t ermination hydraulic type connector din 43650 w iper precious metal multifinger sealed to ip53 mounting movable brackets the 139 l is a robust industrial linear motion transducer with a side actuation, ideally suited for applications with very long travels. electrical specifications operating life 40 million cycles typical t emperature range ?5 5c + 125c sine vibration on 3 axes 1.5mm peak to peak or 15g - 10hz - 2000hz mechanical shocks on 3 axes 50g - 11ms - half sine mechanical specifications performance precision linear transducers, conductive plastic (rec)
139 l v ishay sfernice document number: 54015 revision 14-dec-01 www.vishay.com 38 for technical questions, contact sfer@vishay .com series rec model 139 number of tracks l l= 1 theoretical electrical travel 43 t imes 25 mm linearity d a: 1% d: 0.1% e: 0.05% f: 0.025% ohmic value 103 first 2 digits are significant numbers 3rd digit indicates number of zeros modifications w ... special feature code number ordering information dimensions in millimeters, general tolerance 1mm length aet mt l l1 to l20 tet + 1.5 min tet + 7 min. tet + 158 max. l 21 to l40 tet + 1.5 min. tet + 11 min. tet + 163 max. l41 to l120 tet + 1.5 min. tet + 15 min. tet + 169 max. accessories on request dimensions in millimeters precision linear transducers, conductive plastic (rec) tet = theoretical electrical travel aet = actual electrical travel mt = mechanical travel pin 3: + pin 2: wiper pin 1: - tet aet mt cm cet 90 m5 l movable brackets 12 3 31.5 51.7 26 angular clearance 10 1 + 4 - 0 26.5 1 18 + 2 - 0 36 61 max. 50 67 ? 5.2 female connector v ishay?s reference: 3248610 36 max 48 max standard model 4. ground 4 t able 1
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