Contact-free DC-Operated Rotary Position Sensors Features 0.1% Linearity Over 120° Measurement Range

October 14, 2007 (PRLEAP.COM) Technology News
Available as the RSE 1500-120 with a 24 V DC input and a 0-to-10 V DC output, or as the RSI 1500-120 with a 2-wire 4-20 mA loop-powered transmitter I/O, these units are adaptable to a wide variety of industrial automation and process control applications.

Although their shafts can rotate a full 360º, the RS 1500-120 rotary position sensors utilize contactless inductive technology to measure shaft angle position over a nominal range of 120º with excellent accuracy and repeatability and exceptional reliability. These units exhibit a linearity error of less than 0.10% of full range output, have an IEC IP-66 environmental rating, and operate at temperatures from 0ºF to 185ºF (-20ºC to 85ºC).

Other significant features of the RS 1500-120 series rotary position sensors include:

· Servo-mount groove and pilot in sensor body
· Convenient mounting flanges available
· Splash-proof shaft seals available.
· No slip rings or rotors to wear out
· Absolute output so no output loss after power failure
· Excellent price/performance characteristics

The RSE 1500-120 supplies a true 0-to-10 Volt DC output from a nominal 24 V DC power supply. The RSI 1500-120 rotary position sensor can be connected either as a loop powered two-wire 4-20 mA transmitter, or as a three-wire sourcing current transmitter using an external 24 V DC loop power supply. The voltage output version is a natural adjunct to PLC-controlled automation systems or PC-based data acquisition equipment. The 4-20 mA loop version supports all kinds of process applications with a low noise current loop output ideal for connection to the analog input of a remote data logger, supervisory process controller or SCADA system located some distance from the sensor or the measurement point.

For price and delivery information, please contact Eileen Otto at or visit our web site at

About Macro Sensors
Macro Sensors’ extensive line of LVDT-based linear and rotary sensors are used for linear position measurement and feedback in a variety of industrial applications including factory automation and motion control systems, as well as for valve position sensing in steam turbine power plants. Incorporated in 1994, the Company offers more than 400 years of cumulative LVDT design and manufacturing experience by its key staff in serving its OEM and end-user international customer base. In June, 2005, Macro Sensors was acquired by AST, a manufacturer of state-of-the-art MEMS-based pressure sensors, transducers, and transmitters. AST sensor products are used in industrial OEM products, hydraulic systems, fuel cells, medical gas test systems, HVAC/R, oil & gas exploration/production, and off-road vehicles. For more information on AST products and technology, visit the AST website at

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Tel: 856-662-8000 Fax: 856-317-1005