Keyence GT2-A32 Air Push Sensor Head

Keyence GT2-A32 Long-Range Air Push Digital Contact Sensor Head

Product Introduction

The GT2-A32 is a long-range air push digital contact sensor head in the Keyence GT2 series. This unit uses dry air to extend and retract its probe. Consequently, it suits automated gauging stations that need deep reach. The Scale Shot System provides absolute encoding. Therefore, the sensor keeps its position reference even after a power cycle. Its 32 mm measuring range handles larger part features and deeper cavities. Meanwhile, the 0.5 µm resolution captures fine dimensional changes. The 3.5 µm indicated accuracy meets standard industrial tolerance checks. This sensor head connects to a GT2 series amplifier through an M8 connector. Typical uses include bore depth checks, step height measurement, and position verification.

Technical Specifications

The GT2-A32 uses the Scale Shot System, an absolute detection method. This design removes tracking errors completely. The measuring range is 32 mm. Additionally, the resolution reaches 0.5 µm. The indicated accuracy is 3.5 µm (p-p). The sampling cycle is 1 ms, so the head keeps pace with fast production lines.

Measuring force varies with mounting orientation. Downward mounting produces 2.1 N. Side mounting produces 1.8 N. Upward mounting produces 1.5 N. These moderate forces suit most rigid workpieces. A two-colour LED (red and green) shows operation status. This indicator simplifies setup and troubleshooting.

Pneumatic Requirements

The air push mechanism uses dry air only. Moisture can damage internal seals and reduce service life. The pressure resistance is 1 MPa. Furthermore, the applied pressure range is 0.25 to 0.50 MPa. Operating below this range may cause incomplete probe extension. Operating above it may stress the internal piston. Therefore, install a reliable regulator and filter on the air line. A dry air supply also prevents condensation inside the head.

Electrical and Communication Details

The GT2-A32 has no built-in ports or protocols. It links to a GT2 series amplifier via an M8 connector. The amplifier provides power and handles all signal output. Because of this, supply voltage and power consumption ratings are not listed for the head alone. Output type also depends on the amplifier model. This modular approach lets users replace the head without touching the rest of the system. However, the head cannot operate as a standalone device.

Mechanical and Environmental Parameters

The sensor head weighs approximately 340 g, excluding the cable. Its dimensions are not published in the standard specification sheet. The operating temperature range is 0 to +55 °C with no freezing. Relative humidity should remain between 35 and 85 % RH without condensation. Moreover, the protection rating is IP67 per IEC standards. This rating means the head resists dust and brief water exposure. As a result, it works well in machining cells, assembly lines, and automated test benches.

Installation Guide

First, mount the GT2-A32 with the correct bracket for your fixture. The measuring force changes with orientation, so choose the direction that suits your part. Next, connect the dry air line to the push port. Then, set the regulator between 0.25 and 0.50 MPa. After that, attach the M8 connector to a compatible GT2 amplifier. Make sure the connector is fully tight to preserve the IP67 seal. Finally, cycle the air push several times and confirm the LED status. Secure all cables and tubing to avoid strain on the connectors.

Packaging List

• 1 × Keyence GT2-A32 Long-Range Air Push Digital Contact Sensor Head

• 1 × M8 connector cable (as configured)

• 1 × Mounting bracket set

• 1 × Air fitting kit

• 1 × Protective cap

• 1 × Quick start sheet

FAQ

Q1: What is the resolution of the GT2-A32?
A: The resolution is 0.5 µm. This fine resolution supports precise dimensional inspection tasks.

Q2: What is the measuring range of this sensor head?
A: The measuring range is 32 mm. This long stroke suits deeper bores and larger step features.

Q3: What air pressure does this sensor head need?
A: Use dry air between 0.25 and 0.50 MPa. The pressure resistance limit is 1 MPa.

Q4: Can the GT2-A32 run without a GT2 amplifier?
A: No. The sensor head requires a GT2 series amplifier for power and signal processing.

Q5: What shipping methods do you offer?
A: We ship worldwide via Fedex, UPS, and DHL. Contact us for lead times and freight quotes.