Posted to News on 2nd Jul 2015, 16:41
Angle sensing for extreme environments: RSX-7900 rotary sensor
Further expanding Variohm EuroSensor's range of precision position sensors, the new RSX-7900 angle sensor from German manufacturer Novotechnik provides IP69K protection, very long life and ISO13849 PL-d safety compliance in a very robust non-contacting design that suits continuous duty in mobile construction and agricultural machinery, and other extreme environment applications.
The sensor is offered in six standard measuring ranges with angles from 0 " 60 to 360 degrees with unrestricted rotation. Range resolution is 12-bit across a 4"20mA output with linearity specified at 2 per cent at 90 degrees, whilst repeatability is 0.2 degrees and update rate is 5kHz. Single and dual redundant versions are available and the non-contacting NOVOHALL Hall Effect measurement technology yields a 100 million movement life even under the most arduous shock and vibration conditions. Redundant versions can be validated to ISO 13849 PL-d functional safety standard. Type E1 approval has also been obtained from the Federal Motor Transport Authority in Germany. (KBA). The heavy-duty RSX-7900 is also available with a CANopen interface.
A durable sensor design includes a fully sealed anodised aluminium housing with a stainless steel shaft for enhanced corrosion protection with salt and spray resistance. Axial and radial shaft loading is up to 300N thanks to a double-row angular contact ball bearing design. Although very ruggedized, the compact 70mm diameter sensor has a nominal length of only 35mm and is available with a wide choice of shaft styles for installation flexibility.
The RSX-7900 angle sensor operates from 9 to 34V DC input, providing scope for 12 and 24V mobile vehicle systems, and further flexibility for electrical connection includes cable gland and M12 connectors. Go to www.variohm.com for further details.
