Cable Extension Sensor extends measurement in compact designs.

Press Release Summary:

Designed for measuring ranges up to 20,000 mm, POSIWIRE® WS21 is fitted with non-contact, magnetic, multi-turn-sensing encoder that gives wear-free operation. IP67/69K-rated product, resistant to water, moisture, and condensation, is designed to work reliably even in outdoor applications with fluctuations in temperature. Design also offers resistance against shock (100 g/11 msec) and vibration (20 g, 10 Hz to 2 kHz).

Original Press Release:

New Ultra Compact Cable Extension Sensor for Long Measuring Lengths

The compact POSIWIRE®  WS21 cable extension sensor from ASM is equipped with a  non-contact, magnetic multi-turn-encoder.

Elmhurst – ASM Sensors, Inc. extends its portfolio for displacement and position measurement for mobile working machines. The new POSIWIRE® sensor WS21 has been designed for measuring ranges up to 20 000mm. It is fitted with a robust, non-contact, magnetic multi-turn-sensing encoder, which gives wear free operation and enables very long measuring lengths to be packaged in compact designs. Typical applications include linear measurements for crane booms.

POSIWIRE® cable extension sensors manufactured by ASM GmbH, the leading expert for displacement, angle and inclination sensors, headquartered in Moosinning, Germany, use a specially designed and calibrated measuring cable that is wound in a single layer onto a precision manufactured drum, which transforms the linear movement of the cable into a rotary movement.  An angle sensor such as a potentiometer or a digital encoder finally converts it into an electrical output signal.

The new POSIWIRE® WS21 position sensor is uniquely equipped with a magnetic encoder allowing non-contact measurement of angle rotation giving wear-free operation. This results in a high level of operational safety and a long service life. With a protection class of IP67/69K this sensor is able to withstand harsh environmental conditions and ensures highest safety against breakdown in the field. Being highly resistant to water, moisture and condensation the POSIWIRE® WS21 sensors are designed to work reliably even in outdoor applications with large fluctuations in temperature. The high resistance against shock (100g/11ms ) and vibration (20g 10Hz-2kHz) increases the functional reliability of the sensor, avoiding expensive machine downtime and repairs.

For further information please contact:

Application Support:  630-832-3202

ASM Email:

About ASM:

ASM Sensors, Inc is a leading company in the development, manufacturing and marketing of mechatronic sensors for displacement, angle and inclination measurement. ASM sensors are used in a wide range of industrial applications such as medical equipment, material handling and lifting equipment or renewable energies. With six innovative product lines ASM provides solutions to automate processes, to test systems and components and to increase safety in the workplace.

ASM 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.

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