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Top » Catalog » Sensors » 3531_0 » Optical Rotary Encoder HKT22 [3531_0]
US$35.40

This low-cost encoder is designed to fit on the rear shaft of our stepper motors. Measure the rotation of your motor even when it stalls or missteps.

Optical Rotary Encoder HKT22






This low-cost encoder is designed to fit on the rear shaft of our stepper motors. Measure the rotation of your motor even when it stalls or missteps.






This compact, economical optical quadrature encoder can be attached to the 4mm rear shaft of a motor. It has 300 counts (full quadrature cycles) per rotation and can be installed by fitting it over the shaft, mounting it to the back of the motor, and tightening the set-screw. For complete assembly instructions, take a look at the User Guide. This encoder does not support the use of an index channel.

The mounting holes on the HKT22 encoder line up with the holes on the back of any rear-shaft stepper motor sold at Phidgets, Inc. It connects to any of the following interface boards via the included cable:

  • 1057 - PhidgetEncoder HighSpeed
  • 1047 - PhidgetEncoder HighSpeed 4-Input
  • Comes Packaged with:

  • 0.9 mm Hex Key for set-screws
  • Plastic encoder cap and mount
  • Encoder disk
  • Encoder PCB
  • Two screws
  • 3035 - Cable for HKT22 Encoder


  • Encoder Properties

    Output Circuit Type Push-Pull (Single-Ended)
    Encoder Resolution 300 CPR


    Electrical Properties

    Supply Voltage Min 5 V DC
    Supply Voltage Max 5 V DC
    Output Frequency Max 30 kHz


    Physical Properties

    Shaft Diameter 4 mm
    Operating Humidity Min 30 %RH
    Operating Humidity Max (Non-condensing) 85 %RH
    Operating Temperature Min -10°C
    Operating Temperature Max 85°C
    IP Rating IP40
    Weight 4 g




    This product was added to our catalog on Thursday 02 October, 2014.
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