Motion control encoders that operate in potentially explosive environments, especially in the European Union (EU), require ATEX compliance. HEIDENHAIN ExN and ROx 400 rotary encoders satisfy these requirements and are IP 66 rated as well. The units have increased wall thickness, smaller cable diameter and variations for multiple zones and atmosphere classifications.
The ExN 400 encoders have a blind hollow shaft of 12 mm and are resistant to shock up to 1500 m/s2 (for 2 ms) and vibration up to 100 m/s2. They can handle shaft speeds up to 5000 rpm in a temperature range from -20°C to +80°C.
The ROx 400 encoders have either a 6-mm or 10-mm solid shaft and increased vibration ratings up to 300 m/s2 as well as higher shaft speeds reaching 10,000 rpm.
The family is available in incremental or absolute versions.
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