Handbook of Laboratory Measurements



Bullet Sensors & Transducers e-Digest, Vol. 137, Issue 2, February 2012: Product News

    (ISSN 1726-5479)



Editorial Calendar 2012

Editorial Board

Submit an Article

Submit a White Paper

10 Top Sensors Products of 2011

Top 25 Downloaded Article

Sensors & Transducers Journal 2011

Journal Subscription

ASM logo


Submit Press Release


or / and


White Paper

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents

2007 S&T e-Digest Contents

2008 S&T e-Digest Contents

2009 S&T e-Digest Contents

2010 S&T e-Digest Contents

2011 S&T e-Digest Contents



Magnetic Rotary Position Sensors



Elmhurst, IL (February 6, 2012) - ASM Sensors, a leading manufacturer of position sensors, offers the extension of the POSIROT® family of magnetic rotary sensors, the PRAS20/PRAS21 series for use in the medical equipment industry. This non-contact position sensor uses an external position magnet to reliably provide an absolute output signal over a 0 to 360 degree measurement range.


By using an external magnet, this sensor provides continuously, wear-free operation. The maximum measurement range is 360 degrees and may be ordered with smaller measurement ranges in 15 degree increments. The sensor output is an analog voltage signal, 0.5 V to 4.5 V. For the PRAS20 series, 0.5 to 10 V and 4 to 20 mA outputs are also available. A redundant output is an available option in the PRAS20 series.


The ultra-compact PRAS21 series housing has a height of less than ¼ inch that is rated IP60 that allows it to fit into the tightest medical equipment applications. The circuit board is fully potted to provide a high level of shock and vibration resistance. The resolution is rated at 0.03 % of full scale (60…360°) and 0.1 % full scale (15…45°), the repeatability is ±0.03 % (60…360°); ±0.1 % (15…45°) and linearity is ±0.5 % full scale. 


The favorable price per performance and ultra flat profile of the PRAS21 series make it uniquely suited for numerous medical OEM applications, such as surgical table positioning. In medical applications that do not require water tight housings, the PRAS20/21 series position sensor can replace large, costly sensors with metal housings. The sensor is quickly and easily installed with M3 bolts.



About ASM Sensors:


ASM Sensors, Inc. is a leading company in the development, manufacturing and marketing of linear and rotary position sensors as well as tilt sensors for use in industrial and commercial applications. With 30 years of experience in serving all sectors of industry, ASM sensors has set industry standards in position measurement by providing innovative products to help automate processes and to increase safety in the workplace.


ASM Sensors, Inc. has its global headquarters in Moosinning, Germany near Munich which is ISO 9001:2008 certified and is where both standard products and customized solutions are manufactured. ASM products are sold worldwide through subsidiaries, sales offices and a network of representatives.




Contact :


Siegfried Baier

Marketing Manager ASM Sensors, Inc. / ASM GmbH

ASM Sensors, Inc.

650W. Grand Ave., Unit 205

Elmhurst, IL 60126, USA

Tel.: 1-(630)-832 3202

Fax: 1-(630)-832 3204

E-mail: info@asmsensors.com

POSIROT® family of magnetic rotary sensors



Sensors Web Portal



Position sensors






Read more about Position and Rotational Speed Sensors



Back to S&T e-Digest page


1999 - 2012 Copyright ©, International Frequency Sensor Association (IFSA). All Rights Reserved.