Features of the size 30 RH series:
• The RH encoder, also known as a Pulse PositionIndica tor (PPI), generates tracking pulses for web applications when used with barcode laser scanners or CCD vision systems.
• It typically is equipped with two 12 inch or 30 centimeter circumference measuring wheels that ride directly on the conveyor belt or web, eliminating any slippage problems typically encountered with shaft encoders.
• With its double wheel construction, the encoder is selfaligning when allowed to pivot freely from its integral arm.
• The encoder’s weight is sufficient to maintain contact
when mounted above the moving material.
• Special mounting accessories are also available.

Features of the size 20 R22 series:
• Generates pulses for accurate linear measurement.
• Heavy Duty construction, NEMA12, IP-54.
• Compact size vs. Size 30.
• Precision 8” or 20cm circumference measuring wheels.
• 16mm or M12 mating conn. with 10’ cable.
• “Anti-Jitter” and other material handling features.
• ESD, Short Circuit, Reverse Voltage protection.
• Various mounting hardware kits are available.
• Programmable model available – see Model R22-P.