Keyence GT2-A50 Air Push Sensor Head for Precise Measurement
This article explains the Keyence GT2-A50 air push sensor head and its industrial measurement applications. Furthermore, it covers technical specifications, installation guidance, packaging details, and common questions.
Product Introduction
The Keyence GT2-A50 belongs to the GT2 series of high-accuracy digital contact sensors. Specifically, this air push model offers a long 50 mm stroke for demanding measurement tasks. Additionally, the sensor uses an absolute detection system. Therefore, it never loses position data after power interruptions.
Technical Specifications
The GT2-A50 achieves a resolution of 0.5 µm with an indicated accuracy of 3.5 µm (p-p). Its scale shot system combines a quartz glass scale with a CMOS image sensor. Consequently, this absolute optical design produces reliable readings without tracking errors.
The sampling cycle runs at 1 ms, enabling real-time measurement feedback. Moreover, measuring force varies by mounting orientation. Downward mounting produces 3.2 N, side mounting gives 2.8 N, and upward mounting yields 2.4 N.
Mechanical and Environmental Parameters
The GT2-A50 operates with dry air at a pressure range of 0.25 to 0.50 MPa. Its pressure resistance reaches 1 MPa. Meanwhile, the IP67 enclosure rating protects against dust and water ingress.
Operating temperature spans 0 to +55 °C without freezing. Additionally, relative humidity tolerance covers 35 to 85 % RH without condensation. The sensor head resists vibration from 10 to 55 Hz at 1.5 mm double amplitude in all three axes.
The main body uses zinc die-casting with an aluminium alloy cylinder. The dust boot consists of NBR material. A 2-colour LED (red and green) provides operation status at a glance.
Installation Guide
First, mount the GT2-A50 in the desired orientation using appropriate brackets. Next, connect the air tube to the exhaust joint for proper air push operation. Then, link the sensor head to a GT2 series amplifier through its M8 connector. Finally, verify the LED indicator shows normal operation.
The measuring force changes with the dust boot installation state. Therefore, verify the actual force after mounting. Besides, keep foreign materials away from the air joint to prevent internal damage.
Packaging List
1x Keyence GT2-A50 Sensor Head
1x Standard Contact (installed)
1x Dust Boot (installed)
Shipping via Fedex, UPS, DHL
FAQ
Q1: What is the measuring range of the GT2-A50?
A: The GT2-A50 offers a 50 mm measuring range. This long stroke suits applications needing extended travel.
Q2: Does the GT2-A50 require a separate amplifier?
A: Yes. The GT2-A50 is a sensor head only. It needs a GT2 series amplifier for power and signal processing.
Q3: What air pressure does the GT2-A50 need?
A: Apply dry air at 0.25 to 0.50 MPa. The maximum pressure resistance is 1 MPa.
Q4: What is the resolution of this sensor head?
A: The GT2-A50 provides 0.5 µm resolution. This enables detection of very small dimensional changes.
Q5: Can I mount the GT2-A50 in any direction?
A: Yes. The sensor works in downward, side, or upward mounting. However, measuring force differs by orientation.
