Keyence GT2-71P Sensor Amplifier PNP Output

Keyence GT2-71P Digital Contact Sensor Amplifier Unit

Product Introduction

The Keyence GT2-71P belongs to the well-known GT2 series of digital contact sensor amplifiers. Keyence designed this main unit for high-precision measurement in industrial automation. Specifically, it delivers a display resolution of 0.1 µm, which supports demanding inspection tasks. The amplifier works with various GT2 series sensor heads. As a result, it fits many positioning, thickness, and displacement applications. Moreover, the DIN-rail mount design simplifies panel installation. This unit provides PNP open collector outputs for reliable signal transmission. In addition, it accepts a wide supply voltage range of 10 to 30 VDC. Therefore, it integrates easily into existing control systems.

Technical Specifications

The GT2-71P amplifier offers an impressive display range. It covers -199.999.9 to 199.999.9 for flexible measurement. Furthermore, the display resolution reaches 0.1 µm for fine detection. The response time is selectable across several settings. For standard GT2 heads, options include hsp(3)/5/10/100/500/1,000 ms. Meanwhile, when using GT2-Pxxx heads, the choices become hsp(12)/20/40/400/2,000/4,000 ms. This flexibility helps users match speed with accuracy needs.

Control input supports timing, preset, reset, and bank no-voltage input. Besides, the output type is HH/HI/GO/LO/LL PNP open collector. The output rating is 40 V / 50 mA or less with residual voltage of 1 V or less. Additionally, power consumption stays at 2,200 mW or less. At 30 V, the current draw is 73.3 mA or less. The unit has no built-in communication ports or protocols. However, communication expansion is possible via optional GT2 series communication units, sold separately.

Mechanical and Environmental Parameters

The Keyence GT2-71P operates in temperatures from -10 to +50 °C without freezing. Relative humidity should stay between 35 and 85 % RH with no condensation. The unit weighs approximately 140 g including the power cable. Unfortunately, dimensions and storage temperature are not available in the standard specification. Likewise, the protection rating is not published for this model. Nevertheless, the DIN-rail mounting system ensures a secure fit inside control cabinets.

Installation Guide

First, mount the GT2-71P on a standard DIN rail inside a control panel. Next, connect the power cable to a 10 to 30 VDC supply. Ensure the ripple stays within 10 % peak-to-peak. Then, attach the sensor head to the amplifier unit. After that, wire the control inputs for timing, preset, reset, or bank selection. Moreover, connect the PNP open collector outputs to your PLC or controller. Finally, set the response time and display parameters through the front panel. Always follow Keyence guidelines for grounding and cable routing. This approach reduces electrical noise and ensures stable readings.

Packaging List

• 1 × Keyence GT2-71P amplifier unit

• 1 × Power cable

• 1 × Mounting bracket

• 1 × Instruction sheet

• Shipping via Fedex, UPS, DHL

FAQ

Q1: What sensor heads work with the Keyence GT2-71P?
A: This amplifier supports GT2 series sensor heads. It also works with GT2-Pxxx heads, though response times differ. Specifically, GT2-Pxxx heads use slower settings from hsp(12) to 4,000 ms.

Q2: Does the GT2-71P have built-in communication ports?
A: No, the standard unit lacks built-in ports and protocols. However, you can add optional GT2 series communication units for network connectivity. These units are sold separately.

Q3: What is the display resolution of this amplifier?
A: The GT2-71P provides a display resolution of 0.1 µm. This high resolution suits precise measurement tasks. The display range spans -199.999.9 to 199.999.9.

Q4: How do I mount the GT2-71P in a control panel?
A: The unit uses DIN-rail mounting. First, snap it onto a standard DIN rail. Next, secure the power and sensor connections. Finally, verify the supply voltage stays within 10 to 30 VDC.

Q5: What is the response time range for the GT2-71P?
A: Response time depends on the sensor head. For standard heads, choices range from hsp(3) to 1,000 ms. For GT2-Pxxx heads, options range from hsp(12) to 4,000 ms.