R120LC - DC Operated Low Cost RVIT * * * * * * * * Low cost 5VDC supply voltage 0 to 120 degree sensing range Non-contact electrical design 1/4 inch shaft diameter Ratiometric output No wear potentiometer replacement Light weight DESCRIPTION The R120LC RVIT (Rotary Variable Inductance Transducer) is a cost efficient, DC operated non-contact angular position sensor. It provides a smooth 0.5 to 4.5VDC output, ratiometric to the supply voltage and proportional to angular position over the 120 degree sensing range. The R120LC utilizes non-contacting, differential inductive technology, and does not suffer the wear problems experienced by potentiometers. The R120LC proprietary design utilizes a set of four printed circuit coils and a light-weight conductive spoiler to achieve superior performance with a low moment of inertia. During operation, the light weight spoiler rotates with the transducer shaft, differentially altering the inductance of the printed circuit planar coils. The resulting unbalance is precisely measured using a patented autoplex circuit. This signal is then converted to a linear DC output voltage proportional to the angle of the rotor shaft. The digital circuit provides resistance to environmental disturbances such as EMI and RFI, and is ideally suited to the most rigorous industrial applications. Calibrated over the full 120 degree sensing range, the R120LC offers exceptional performance at a cost effective price. It also features a wide operating temperature range, infinite resolution, and an extremely long rotational cycle life. Also see our other DC operated, angular position sensor models, RVIT-15 Series (single ended DC operation, voltage or current output), R60D (bipolar DC operation), and the R30D (DC operated RVDT). Measurement Specialties, Inc. (NASDAQ MEAS) offers many other types of sensors and signal conditioners. Data sheets can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx MEAS acquired Schaevitz Sensors and the Schaevitz FEATURES * * * * * Precision ball bearings Infinite resolution Low moment of inertia Long term reliability Wide operating temperature range R120LC Rev. 4 TM trademark in 2000. APPLICATIONS * * * * Valve position Fly-by-wire joy-stick position feedback General aviation stall warning sensor Potentiometer replacement www.meas-spec.com 1/3 2015-July R120LC - DC Operated Low Cost RVIT PERFORMANCE SPECIFICATIONS ELECTRICAL SPECIFICATIONS Input voltage Input current Angular range Non-linearity Output at range ends Sensitivity Temp coefficient of output Output current Output impedance Non-repeatability and hysteresis Frequency response 50.25 VDC 21mA maximum 0 to 120 degree 0.5% of FSO +0.5 to +4.5 VDC (ratiometric to input voltage) 6.67mV/V/degree (ratiometric to input voltage) 0.02% of FSO per F [0.03% of FSO per C], over operating temperature range 5mA maximum 1 maximum 0.1% of FRO maximum 200 HZ @ -3 dB ENVIRONMENTAL AND MECHANICAL SPECIFICATIONS Operating temperature range Storage temperature range Mechanical angular range Bearings Shaft diameter Torque Weight Electrical connection IEC 60529 rating -13F to +185F [-25C to 85C] -67F to +257F [-55C to 125C] 360 degrees (no stops) ABEC 3 precision 1/4 inch [6.3mm] 0.12 inch.ounce-force [8.6 gram-force.cm] 1.2oz [34gm] 4 lead wires, 28 AWG , PTFE insulation, 12 inches [30cm] long IP60 Notes: All values are nominal unless otherwise noted FSO (Full Scale Output): Largest absolute value of the outputs measured at the ends of the range FRO (Full Range Output): Algebraic difference in outputs measured at the ends of the range DIMENSIONS Dimensions are in inch (mm) R120LC Rev. 4 www.meas-spec.com 2/3 2015-July R120LC - DC Operated Low Cost RVIT WIRING INFORMATION ORDERING INFORMATION Description Model RVIT 0-120 R120LC Part Number 02183000-000 Refer to our "RVDT and RVIT Accessories" brochure for our RVDT accessories. TECHNICAL CONTACT INFORMATION NORTH AMERICA EUROPE ASIA Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 United States Phone: +1-800-745-8008 Fax: +1-757-766-4297 Email: sales@meas-spec.com Web: www.meas-spec.com MEAS Deutschland GmbH Hauert 13 D-44227 Dortmund Germany Phone: +49-(0)231-9740-0 Fax: +49-(0)231-9740-20 Email: info.de@meas-spec.com Web: www.meas-spec.com Measurement Specialties China Ltd. No. 26, Langshan Road High-tech Park (North) Nanshan District, Shenzhen 518057 China Phone: +86-755-33305088 Fax: +86-755-33305099 Email: info.cn@meas-spec.com Web: www.meas-spec.com The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer's technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. R120LC Rev. 4 www.meas-spec.com 3/3 2015-July Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: 02183000-000