Keyence GT2-72N Amplifier Unit for High-Accuracy Measurement
This article explains the Keyence GT2-72N digital contact sensor amplifier unit and its measurement roles. Furthermore, it covers technical specifications, installation guidance, packaging details, and common questions.
Product Introduction
The Keyence GT2-72N belongs to the GT2 series of high-accuracy digital contact sensor amplifiers. Specifically, this expansion unit mounts on a DIN rail for compact panel layouts. Additionally, it pairs with GT2 series sensor heads to form a complete measuring system. Therefore, it suits inline inspection and precision assembly lines.
Technical Specifications
The GT2-72N displays values from -199.999.9 to 199.999.9 with 0.1 µm display resolution. Its fast response time starts at 3 ms in hsp mode. Moreover, selectable response settings include 5, 10, 100, 500, and 1,000 ms.
When paired with GT2-Pxxx heads, response options expand to 12, 20, 40, 400, 2,000, and 4,000 ms. Consequently, users can balance speed and stability for each task. The control input supports timing, preset, reset, and bank no-voltage signals.
Electrical Parameters
The GT2-72N runs on 10 to 30 VDC with 10 % ripple included. Power consumption stays at 2,200 mW or less, drawing 73.3 mA or less at 30 V. The NPN open collector output covers HH, HI, GO, LO, and LL judgments.
Output ratings reach 40 V and 50 mA or less, with residual voltage at 1 V or less. Additionally, communication expansion is possible through optional GT2 series communication units. However, those units are sold separately.
Environmental and Physical Parameters
Operating temperature spans -10 to +50 °C without freezing. Meanwhile, relative humidity tolerance covers 35 to 85 % RH without condensation. The unit weighs approximately 140 g including its power cable.
Installation Guide
First, snap the GT2-72N onto a standard DIN rail inside the control panel. Next, connect the power cable to a 10 to 30 VDC Class 2 supply. Then, link the amplifier to a GT2 series sensor head using the dedicated connector. Finally, set the response time and judgment thresholds for your application.
The expansion unit connects to a main amplifier through the side connector. Therefore, plan rail space for the full amplifier chain. Besides, keep wiring away from high-voltage lines to reduce noise.
Packaging List
1x Keyence GT2-72N Amplifier Unit
1x Power Cable
1x Mounting Hardware Set
Shipping via Fedex, UPS, DHL
FAQ
Q1: What is the display resolution of the GT2-72N?
A: The GT2-72N provides 0.1 µm display resolution. This supports fine dimensional inspection tasks.
Q2: Does the GT2-72N work as a standalone unit?
A: No. The GT2-72N is an expansion unit. It needs a GT2 series sensor head and a main amplifier to operate.
Q3: What output type does this amplifier use?
A: It uses NPN open collector outputs. The five judgment levels include HH, HI, GO, LO, and LL.
Q4: What is the fastest response time available?
A: The fastest setting is 3 ms in hsp mode. Other options range from 5 ms up to 4,000 ms.
Q5: What supply voltage does the GT2-72N require?
A: It requires 10 to 30 VDC with 10 % ripple included. Use a Class 2 power source for safe operation.
