Bourns model EMS22 is a non-contacting rotary magnetic encoder with a Hall Effect application-specific standard product (ASSP) capable of producing four distinct output waveforms. These waveforms include 2-bit Quadrature up to 256 PPR (model EMS22Q), Direction/Step up to 512 PPR (model EMS22D), Pulse-Width Modulated (PWM) output with 1024 positions (model EMS22P), and Absolute with 1024 positions (model EMS22A).
Model EMS22 is available in both a 3.3 and 5.0 VDC supply voltage and is offered in two different versions. This product has the capability of rotating up to 10,000 RPM while maintaining code accuracy, making it suitable for MMI applications such as industrial automation. This performance is achieved by utilizing dual ball bearings in the construction of the device, resulting in extended rotational life up to 100,000,000 shaft revolutions (beyond 100,000,000 shaft revolutions in some configurations).
The EMS22 non-contacting encoder is ideal for use in harsh environments where extreme levels of temperature, moisture and particles are present. The outstanding performance of this device is attributed to the non-contacting technology and superior performance of the austriamicrosystems® AS5040 Hall Effect ASSP. In addition, this product is sealed to IP 65 with an optional upgrade to IP 67.