High-Accuracy Digital Contact Sensor

GT2 series

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Amplifier Unit, Pulse Output Type GT2-71D

GT2-71D - Amplifier Unit, Pulse Output Type

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.


  • CE Marking
  • UL Recognition(c/us)




Mounting method

DIN rail mount

Power supply voltage

10 to 30 VDC, including 10 % ripple (P-P), Class 2


Power consumption

1,600 mW or less (at 30 V: 53.3 mA or less)

Number of expandable units

Cannot be extended

Indicator lamp

Power (green), alarm (red), pulse output (green), input (green)

Pulse resolution

0.1 μm 0.004 Mil, 0.5 μm 0.02 Mil, 1 μm 0.04 Mil, 10 μm 0.039 Mil (selectable)

Minimum phase difference

0.5 μs, 2.5 μs, 5 μs, 25 μs (selectable)

Control input

origin return

No-voltage input (with contacts, without contacts), input time: 20 ms or more

Output signal

90 ° phase difference from the A, B, and Z phases; differential square wave (conforms to EIA-422)

Output signal level

+5 V

Environmental resistance

Ambient temperature

-10 to +50 °C 14 to 122 °F (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions


Polycarbonate (PC)


Approx. 110 g (including the power supply cable)

Data Sheet (PDF) Other Models