Products for USB Sensing and Control

Products for USB Sensing and Control

PHIDGETS Inc.

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada
+1 403 282-7335

Optical Rotary Encoder HKT22

ID: 3531_0

This encoder fits on the rear shaft of our stepper motors. Measure the rotation of your motor even when it missteps.

$25.00

Quantity Available: 1000+

Qty Price
5 $24.00
10 $23.00
25 $22.50
50 $22.00
100 $21.50

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.

Functional

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. For a list of compatible motors and encoder interfaces, see the Compatible Products tab.

Comes Packaged With

Contents

Product Specifications

Encoder Properties
Controlled By Encoder Interface
Output Circuit Type Push-Pull (Single-Ended)
Encoder Speed Max 1500 RPM
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
Inner 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
3531.jpg
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Getting Started

Checking the Contents

You should have received:

  • Plastic encoder cap and base
  • Encoder disk
  • Encoder PCB
  • Two screws
  • 0.9mm hex key for disk set-screw
  • 3035 - Cable for HKT22 Encoder

In order to test your new Phidget you will also need:

  • A motor with a rear shaft and compatible mounting holes
  • A motor controller Phidget
  • A Phidget with an encoder input

Connecting the Pieces

Take the plastic base, the encoder PCB, and the two screws (the screws should be inside the encoder cap). Place the PCB with the white connector facing downward so that it fits into the space on the plastic base. Take care not to touch the optical sensor on top of the PCB, because your fingerprints could affect the operation of the sensor. Place the screws in the two holes in the PCB.

3531 0 Connection1.jpg

Line the parts up with the mounting holes on the back of the motor. It doesn't matter which way the encoder is facing, but for cable management purposes you may want to have the connector facing the same direction as the motor's wires. Screw the parts onto the back of the motor, tightening until there is no visible gap between the PCB and the plastic base. Do not over-tighten.

3531 0 Connection2.jpg

Get the encoder disk and hex key. Do not touch the surface of the encoder disk, as your fingerprints could affect the operation of the optical sensor. Place the encoder disk on the rear shaft of the motor with the metal coupler facing outward. Slide the encoder disk until the surface of the disk is approximately 1.5mm from the optical sensor on the PCB. Use the hex key to tighten the set-screw on the coupler of the encoder disk.

3531 0 Connection3.jpg

Double check everything before attaching the plastic cap; it is very difficult to remove once it snaps in place.

3531 0 Connection4.jpg

Attach the included encoder cable and you're all done! For further instructions, visit the user guide for the motor controller and encoder interface Phidget that you're using.

3531 0 Connection5.jpg

Encoder Interfaces

This quadrature encoder must be read by an encoder interface. These interfaces will interpret the two quadrature signals in order to determine the continuous position of the rotating part. The following interfaces are compatible with this encoder:

Product Encoder Interface
Image Part Number Price Number of Encoder Inputs Count Rate Max
1047_1 $100.00 4 1E+06 pulses/s
1057_2 $60.00 1 2E+06 pulses/s
1065_0 $80.00 1 500000 cycles/s
ENC1000_0 $15.00 1 400000 pulses/s

Motors

Here is a complete list of all motors sold at Phidgets that have mounting holes on the rear shaft that are compatible with the HKT22 encoder:

Product Motor Properties Gearbox Properties
Image Part Number Price Rated Torque Motor Type Gear Ratio
3268_1 $43.00 17.3 kg·cm DC Motor
3269_2 $69.00 5.1 kg·cm DC Motor
3270_1 $66.00 14.3 kg·cm DC Motor
3271_1 $66.00 20.4 kg·cm DC Motor
3272_1 $72.00 51 kg·cm DC Motor
3273_1 $72.00 82.6 kg·cm DC Motor
3274_1 $76.00 173 kg·cm DC Motor
3320_0 $16.00 520 g·cm Bipolar Stepper
3321_0 $36.00 14 kg·cm Bipolar Stepper 26 103121 : 1
3322_0 $38.00 32 kg·cm Bipolar Stepper 99 10442057 : 1
3323_0 $16.00 1.2 kg·cm Bipolar Stepper
3324_0 $16.00 3.3 kg·cm Bipolar Stepper
3325_0 $40.00 18 kg·cm Bipolar Stepper 5 211 : 1
3326_0 $42.00 30 kg·cm Bipolar Stepper 13 212289 : 1
3327_0 $44.00 30 kg·cm Bipolar Stepper 26 103121 : 1
3328_0 $46.00 48 kg·cm Bipolar Stepper 50 43974913 : 1
3329_0 $48.00 48 kg·cm Bipolar Stepper 99 10442057 : 1
3330_0 $28.00 11.2 kg·cm Bipolar Stepper
3331_0 $20.00 11 kg·cm Bipolar Stepper
3332_0 $70.00 46.6 kg·cm Bipolar Stepper 4 14 : 1
3333_0 $72.00 150 kg·cm Bipolar Stepper 15 310 : 1
3334_0 $74.00 240 kg·cm Bipolar Stepper 76 4964 : 1
3335_0 $60.00 30 kg·cm Bipolar Stepper
3336_0 $80.00 106 kg·cm Bipolar Stepper

Encoder Cables

The following cables can be used to connect this encoder to a Phidget encoder interface:

Product Physical Properties
Image Part Number Price Cable Length
3035_0 $3.00 500 mm

Have a look at our quadrature encoders:

Product Encoder Properties
Image Part Number Price Output Circuit Type Encoder Resolution Encoder Speed Max
3531_0 $25.00 Push-Pull (Single-Ended) 300 CPR 1500 RPM
3532_0 $85.00 Push-Pull (Single-Ended) 360 CPR 4500 RPM