HR Series General Purpose LVDT High Reliability Large core-to-bore clearance Stroke ranges from 0.05 to 10 inches AC operation from 400Hz to 5kHz Stainless steel housing Imperial or metric threaded core Many options and accessories DESCRIPTION The HR Series general purpose LVDTs provide the optimum performance required for a majority of applications. The large 1/16 inch 1.6mm bore-to-core radial clearance provides for ample installation misalignments and therefore reduces the application costs. Featuring a high output voltage and a broad operating frequency range, these versatile and highly reliable LVDTs deliver worry-free and precise position measurements. Available in a variety of stroke ranges from 0.05 to 10 inches, the HR Series can be configured with a number of standard options including guided core, small diameter/low mass core. High temperature (200C) operation and Mild Radiation Resistance versions are also available (consult factory). The HR Series is compatible with the full line of Measurement Specialties LVDT signal conditioners. Like in most of our LVDTs, the HR windings are vacuum impregnated with a specially formulated, high temperature, flexible resin, and the coil assembly is potted inside its housing with a two-component epoxy. This provides excellent protection against hostile environments such as high humidity, vibration and shock. Measurement Specialties, Inc. (NASDAQ MEAS) offers many other types of sensors and signal conditioners. Data sheets can be downloaded from our web site at: HR Series General Purpose LVDT PERFORMANCE SPECIFICATIONS ELECTRICAL SPECIFICATIONS Parameter HR 050 HR 100 HR 200 HR 300 HR 500 HR 1000 HR 2000 HR 3000 HR 4000 HR 5000 HR 7500 HR 10000 0.05 0.1 0.2 0.3 0.5 1 2 3 4 5 7.5 10 Stroke range 1.27 2.54 5.08 7.62 12.7 25.4 50.8 76.2 101.6 127 190.5 254 Sensitivity V/V/inch 5.8 4.2 2.5 1.3 0.7 0.39 0.23 0.25 0.20 0.14 0.13 0.07 mV/V/mm 228 165 98.4 51.2 27.6 15.4 9.1 9.8 7.9 5.5 5.1 2.8 Output at stroke ends, 290 420 500 390 350 390 460 750 800 700 975 700 mV/V (*) Phase shift -1 -5 -4 -11 -1 -3 +5 +11 +1 +3 +1 -5 Input impedance 430 1070 1150 1100 460 460 330 315 275 310 260 550 (PRIMARY) Output impedance 4000 5000 4000 2700 375 320 300 830 400 400 905 750 (SECONDARY) Non-linearity % of FR 50% stroke 0.10 0.10 0.10 0.10 0.15 0.15 0.15 0.15 0.15 0.15 / 0.15 100% stroke 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 (maximum) 125% stroke 0.25 0.25 0.25 0.35 0.35 1.00 0 .50 0 .50 0 .50 1.00 / 1.00 (**) (**) (**) (**) (**) 150% stroke 0.50 0.50 0.50 0.50 0.75 1.30 1.00 1.00 1.00 / / / (**) (**) (**) (**) Input voltage 3 VRMS sine wave Input frequency 400Hz to 5kHz Test frequency 2.5kHz Null voltage 0.5% of FRO, maximum ENVIRONMENTAL SPECIFICATIONS & MATERIALS Operating temperature -65F to +300F -55C to 150C Shock survival 1,000 g (11ms half-sine) Vibration tolerance 20 g up to 2KHz Housing material AISI 400 Series stainless steel Electrical connection Six lead-wires, 28 AWG stranded Copper, PTFE insulated, 1 foot 30cm long (longer wires optional) IEC 60529 rating IP61 Notes: Dimensions are in inch mm All values are nominal unless otherwise noted Electrical specifications are for the test frequency indicated in the table FR: Full Range is the stroke range, end to end FR=2xS for S stroke range FRO (Full Range Output): Algebraic difference in outputs measured at the ends of the range (*) Unit for output at stroke ends is millivolt per volt of excitation (input voltage) (**) Requires special reduced core length HR-Series Rev. 6 www.meas-spec.com 2015-July 2/4