Keyence GT-H22 Digital Contact Sensor Head

Keyence GT-H22 Digital Contact Sensor Head

Product Introduction

The Keyence GT-H22 is a standard type digital contact sensor head from the GT Series. Engineers rely on this LVDT displacement sensor for precise measurement in automated production lines. Its 22 mm measuring range covers a wide variety of inspection tasks. Furthermore, the robust IP67 housing withstands harsh factory environments.

Technical Specifications

Measurement Performance

The GT-H22 offers a measuring range of 22 mm, which suits many position and thickness checks. Repeatability reaches 8 µm at 23 °C with a 100 ms response setting. Additionally, the mechanical response frequency is 8 Hz at 23 °C. These values ensure stable and accurate readings during high-speed inspection.

Measuring Force

Measuring force varies with mounting orientation. Specifically, downward mounting produces 1.5 N of force. Side mounting generates 1.4 N, while upward mounting delivers 1.3 N. Therefore, technicians should select the orientation that matches the target material and required contact pressure.

Communication and Electrical

This sensor head contains no built-in communication ports or protocols. Instead, it connects directly to a GT series amplifier for signal processing. The amplifier supplies power and handles output signals. Consequently, the GT-H22 functions as a pure sensing element within the GT measurement system.

Mechanical and Environmental Parameters

Protection and Operating Conditions

The GT-H22 carries an IP67 protection rating, which guards against dust and water ingress. The operating temperature range spans from -10 to +55 °C with no freezing allowed. Moreover, relative humidity tolerance covers 35 to 85 % RH without condensation. These ratings support reliable operation in demanding industrial settings.

Physical Characteristics

The sensor head weighs approximately 135 g including a 2-m cable. This moderate weight keeps mounting hardware simple and stable. Meanwhile, the attached cable provides flexibility for amplifier placement. The compact body fits into most fixture designs without modification.

Installation Guide

Mounting Orientation

First, choose the mounting direction based on the required measuring force. Downward mounting suits soft targets that need gentle contact. Next, side mounting works well for horizontal measurement setups. Finally, upward mounting fits applications where the probe presses against a surface from below.

Amplifier Connection

Connect the GT-H22 cable to a compatible Keyence GT series amplifier. For instance, the GT-71A or GT-75A amplifier powers the sensor head and processes its signals. In addition, configure the amplifier response time to match the inspection speed. A 100 ms setting achieves the rated 8 µm repeatability.

Environmental Protection

Route the cable away from sharp edges and moving parts. Besides, maintain the IP67 seal by keeping the connector fully tightened. Avoid submersion beyond the rated protection level. Moreover, keep operating temperatures within the specified range to prevent measurement drift.

Packaging List

• 1 × Keyence GT-H22 Digital Contact Sensor Head

• 1 × 2-m cable (attached)

• 1 × Original packaging

FAQ

Q1: What amplifier works with the GT-H22?
A: This sensor head pairs with Keyence GT series amplifiers such as the GT-71A, GT-75A, and GT-76A models.

Q2: What is the measuring range of this sensor?
A: The GT-H22 covers a 22 mm measuring range, suitable for many displacement and thickness applications.

Q3: Can I mount the sensor in any direction?
A: Yes. Downward, side, and upward mounting all work, though measuring force differs slightly by orientation.

Q4: Does the GT-H22 include communication ports?
A: No. It contains no built-in ports or protocols. The connected GT amplifier handles all communication and output functions.

Q5: How do I ship this product?
A: We ship worldwide via Fedex, UPS, and DHL. Delivery times vary by destination.