Brand :
KeyenceThe GT2-71P is a DIN rail-mounted amplifier unit in the KEYENCE GT2 series of high-precision contact digital sensors.
As the main unit of the system, it is primarily responsible for receiving measurement signals from the sensor head, performing high-precision data processing, display, and logic output.

| Brand | KEYENCE |
| Model / Part Number | GT2-71P |
| Type | Amplifier Unit |
| Power Supply Voltage | 10 to 30 VDC (including 10% ripple P-P) |
| Output Type | PNP Output |
| Display Resolution | 0.1 μm |
| Display Range | -199.999.9 to 199.999.9 |
| Sampling Rate | 1000 times/second |
| Measurement Value Display | 6 + 1/2 digit 7-segment LED (red) |
|
Status Display |
2-color (red, green) 13-level bar LED display and indicator lights |
|
Ambient Temperature |
-10 to +50 °C (non-freezing) |
|
Relative Humidity |
35 to 85 % RH (non-condensing) |
|
Shock Resistance |
10 to 55 Hz, dual amplitude 1.5 mm, 2 hours each in X, Y, and Z directions |
|
Installation Method |
DIN rail mounting |
| Weight | 140g |
Q: What are some typical application scenarios for the GT2-71P?
A: Combining the GT2-71P's ultra-high precision of 0.1 μm, high-speed sampling of 1000 times/second, and powerful 5-level judgment function, it is mainly used in precision inspection processes with strict requirements for size, position, and tolerance in the field of industrial automation.
Q: What types of sensors are typically paired with the GT2-71P?
A: As the main amplifier in the Keyence GT2 series, the GT2-71P usually needs to be paired with high-precision contact digital sensor probes (sensing heads) from the GT2 series to form a complete measurement system.
Q: What's the difference between it and the GT2-72P expansion unit?
A: The GT2-71P (main unit) and GT2-72P (expansion unit) are almost identical in appearance, display, and individual electrical parameters, but their roles and wiring methods within the overall sensor system are fundamentally different. You can think of the GT2-71P as the "brain" or "commander," while the GT2-72P is its "clone" or "assistant."
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