The Honeywell/Clarostat 600-128-CBL is an incremental rotary optical encoder delivering 128 pulses per revolution for precise position feedback in industrial control systems. Non-contact optical sensing eliminates mechanical wear, enabling extended operational life across automation, robotics, and instrumentation applications.
## Technical Specifications
**Encoder Type & Resolution**
• Optical, incremental design
• 128 PPR (pulses per revolution)
• Two-channel quadrature output (Channel A leads Channel B by 90° in counterclockwise direction)
• TTL-compatible digital output
• Continuous electrical and mechanical travel
**Electrical Performance**
• Supply voltage: 4.75 Vdc min., 5.0 Vdc nom., 5.25 Vdc max.
• Supply current: 30 mA
• Output voltage high: 2.4 Vdc min.
• Output voltage low: 0.4 Vdc max.
• Pull-up resistor: 10 kΩ
**Mechanical Design**
• Stainless steel shaft, 6.35 mm [0.25 in] diameter
• Shaft axial force rating: 2 lbs. push/pull
• Shaft radial play: 0.254 mm [0.01 in] at 25.4 mm [1 in]
• Shaft end play: 0.127 mm [0.005 in] max.
• Nickel-plated brass bushing, 9.53 mm [0.375 in] diameter × 32 NEF-2A
• Molded thermoplastic housing
• Four-lead ribbon cable, color-coded, 0.050 in spacing, 28 AWG stranded copper, 190.5 mm [7.5 in] length
**Performance Envelope**
• Maximum operating speed: 300 RPM
• Maximum operating torque: 0.011 Nm [1.5 oz-in]
• Rotational life: 10 million shaft revolutions minimum
• Operating temperature: -20°C to +65°C
• Shock survivability: 100 G @ 6 ms (MIL-STD-202 method 213, condition 1)
• Vibration withstand: 10–2000 Hz, 15 G peak (MIL-STD-202 method 204, test C)
• Weight: 0.046 lb [21 g]
## Key Features
• TTL output logic eliminates need for analog-to-digital conversion
• Quadrature encoding enables direction sensing and speed measurement
• Stainless steel shaft resists corrosion in demanding environments
• Molded thermoplastic housing reduces weight without sacrificing durability
## Typical Applications
• Industrial automation feedback systems
• Robotic arm position control
• Instrumentation and test equipment
• Machine tool spindle monitoring
## Compatibility & Integration
Direct TTL interfacing with digital control systems, PLCs, and microcontroller inputs. No signal conditioning required for standard digital logic families.
