Wheeled Encoder - RH Series
RH - For precise Linear Measuring Applications

The RH encoder, also known as a Pulse Position Indicator (PPI), generates tracking pulses for web applications, and in particular for material handling sortation 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 self-aligning 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 for mounting the encoder from below.

For High Resolution Applications the RH-1800/3600 encoder generates both 1800 and 3600 pulses per revolution, making it suitable for high resolution printing and CCD scanner applications. When used with precision 12" circumference measuring wheels (MW-1-B) it generates 150 and 300 pulses per inch of linear movement. Please inquire about other similar models.

Standard Features and Options:
•  Generates pulses for accurate linear measurements
•  Tracks conveyor movement independent of conveyor roller diameters
•  Heavy duty construction
•  Precision 12" or 30cm circumference measuring wheels
•  Programmable model available - see Model RH-P
•  Exclusive "Anti-jitter" circuit for conveyor applications
•  Single (A), quadrature (A, B), and index (Z) outputs.
•  Short circuit, ESD, reverse voltage protection

MECHANICAL

• Maximum speed: 6,000 rpm
• Shaft Loading: 
  • Radial: 25 lbs./ 11.3 kg
  • Axial: 10 lbs. / 4.5 ig
• Bearing Life: 70 x 1,000,000/rpm = hours
• Materials:
• Case: 1/4" Aluminum, anodized 
• Shaft: 303 Stainless steel
• Weights: 1.34 lbs. / 0.6 kg

ELECTRICAL CONNECTIONS

• Single Ended Outputs:

3-pin is C-5015 style 97-3102A-10SL-P or equivalent
6-pin is C5015 style 97-3102A-14S-6P or equivalent; or 16mm Amphenol T3402000 or equivalent
4-pin is 12mm Turck FS4.4/14.5 or equivalent

• Differential Line Driver Outputs:

6-pin is C-5015 style 97-3102A-14S-6P or equivalent
8-pin is 166mm Amphenol T3506000 or equivalent
10-pin is C-5015 style 97-3102E-18-1P or equivalent, see M226 modification drawing for addditional details.

Standard cable length is 10 ft / 3 meters. Other lengths are available.

ELECTRICAL

• DC Supply Voltages: (specify when ordering)
  • 5 ± 5%, 5-26 vdc, or 8-30 vdc
    Other supported voltages:
  • 12, 15, or 24 ± 10% vdc
  • 5R to indicate 7 to 12 vdc
  • 12R to indicate 12 to 27 vdc
• Current: 50 ma max (no load)
                  100 ma max (differential line driver)
• Pulse Rate: 0 - 30 kHz
• Pulses per Revolution: (specify when ordering)
• 1 to 1200
• 1 to 2400 (single output only)
• Operating Temperature: 0° to 70° C
• Single Ended: 50ma max current
  • Current sinking NPN with pull-up
  • NPN open collector (30 vdc max)
  • Current sourcing PNP with pull-down
  • Push/Pull
• Differential Line Driver:
• 7272 line driver
• RS422 - 5 vdc output voltage level
  (requires 5, 5-26, or 8-30 supply voltage)
• Pulse symmetry: 108° ± 30%
• Pulse interval jitter: 30% max
• Quadrature: 90° ± 30% max
• Phase jitter: 30% max
• Output Circuit: (specify when ordering)
  Output voltage level is approximately the same as the input voltage( unless specified)
• Output Waveshape: Square wave; outputs A and B are 50/50 duty cycle nominal; output Z (index output) is approximately the width of one cycle on output A or B. Output A leads B by 90 for clockwise rotation viewed from shaft end farthest from the connector.
• Anit-jitter: Increases pulse hysteresis to 1/2 of a pulse width, eliminating the dither caused by excess mecahnical vibration and the resulting false output pulses. Call for details.

Popular Models:

RH-10AJ/120ACT
RH-12/12
RH-12/12P
RH-1200/8-30NP
RH-12AJ/12
RH-12AJ/24P
RH-12AJ/8-30
RH-192/12C
RH-192/12C M148
RH-192AJ/8-30P M131
RH-1AJ/120ACT
RH-2/24P
RH-24/8-30C
RH-240AJ/8-30C,120AJ/8-30C M154
RH-24AJ/12C
RH-2AJ/120ACT
RH-2AJ/24P
RH-2AJ/8-30P
RH-300/5
RH-3600/8-30
RH-3AJ/120ACT
RH-3AJ/24C
RH-3AJ/24P
RH-4/24P
RH-4AJ/120ACT
RH-4AJ/24
RH-4AJ/24P
RH-6/24P
RH-600/8-30
RH-600AJ/5-26P
RH-6AJ/12
RH-6AJ/120ACT
RH-6AJ/24
RH-6AJ/24P
RH-6AJ/8-30
RH-8AJ/24C IW
RHQ-100/24P
RHQ-1000/24C
RHQ-1000/24P
RHQ-1024/5D
RHQ-1200/24P M131
RHQ-1200/5 -30
RHQ-1200/8-30NP
RHQ-256/8-30D
RHQ-360/15C
RHQ-50/24
RHQ-50/24RD
RHQ-600/5D
RHQ-72/5