Contact-free DC-Operated Rotary Position Sensors Measure Angular Displacement of Rotating Elements up to 120°

Pennsauken, NJ, May 2, 2008…

Macro Sensors introduces a new series of contactless, fractional-turn, rotary position sensors that provide an absolute output proportional to shaft rotation over a total range of up 120º. The RSE 1500 Series Rotary RVDT Position Sensors are ideal for measuring the angular displacement of rotating elements such as quarter-turn ball and butterfly valves, air flow dampers, mail sorters, and diverter gates used in packaging and postal sorting machinery. Units are also useful for other limited rotation applications requiring high reliability like pedal position sensing for mobile equipment such as lift trucks, stackers, golf carts, and lawn tractors, or throttle lever position sensing in boats, cranes, and articulating-arm utility service vehicles.

Although their shafts can rotate a full 360º, the RSE 1500 Series Rotary RVDT Position Sensors measure shaft angle position over a nominal range of 120º. Units can operate in 0° to 30°, 60°, 90°, or 120° rotation ranges. Contactless inductive technology enables these rotary position positions to offer high accuracy and repeatability with exceptional reliability. Units exhibit a linearity error of less than 0.10% of full range output while operating over temperatures from 0ºF to 185ºF (-20ºC to 85ºC).

The RSE 1500 Series Rotary RVDT Position Sensors utilize built-in electronics to offer a DC input/output configuration. Operating from a nominal 24V DC power supply, units supply a true 0-to-10V DC output. The absolute output characteristic makes the RSE 1500 Series superior to incremental output sensors like optical encoders that lose their position information in the event of a power failure. Built for long life, units are enclosed in a 1-1/2 inch diameter anodized aluminum shell and have a 0.250" stainless steel shaft running in high performance ball bearings. The aluminum-mounting flange has a 0.750" diameter center pilot for locating centrally in a fixture. Units are also environmentally sealed to IEC IP-66.

For more information on Macro Sensors RSE 1500 Series of Rotary Position Sensors, refer to the web site at http://www.macrosensors.com/RSE_1500.html or contact the factory at positionsensors@macrosensors.com.

About Macro Sensors

Macro Sensors manufactures an extensive line of linear and rotary sensors for position measurement and feedback in a variety of industrial applications including factory automation, motion control systems, metal fabricating, automotive assembly as well as power plants, gas/steam turbines. Incorporated in 1994, the Company offers more than 200 years of cumulative design and manufacturing experience by its key staff in serving its OEM and end-user international customer base. For more information on our products, visit our web site at www.macrosensors.com. On June 1, 2005, Macro Sensors was acquired by AST, manufacturer of state-of-the-art Micro-Electro- Mechanical- Structures (MEMS) based pressure sensors, transducers, and transmitters. Common applications of AST sensor products are in industrial OEM, hydraulic systems, fuel cells, medical gases, HVAC/R, refrigeration, oil & gas exploration/production, and off-road vehicles. For more information on AST products and technology, visit the AST website at http://www.astsensors.com.