Keyence GT2-H12LF Digital Contact Sensor Head – 12 mm Stroke, 0.5 µm Resolution
The Keyence GT2-H12LF belongs to the GT2 series of high-accuracy digital contact sensor heads. This box-type, low-stress sensor delivers absolute measurement with no tracking error. It offers a 12 mm measuring range and a fine 0.5 µm resolution. The sensor head connects to a GT2 amplifier via an M8 connector. It suits precision positioning, thickness checking, and automated inspection tasks.
Technical Specifications
| Brand | Keyence |
| Model | GT2-H12LF |
| Series | GT2 series |
| Module Type | Digital contact sensor head, box type |
| Detection System | Scale Shot System, absolute (no tracking error) |
| Measuring Range | 12 mm |
| Resolution | 0.5 µm |
| Indicated Accuracy | 2 µm (p-p) |
| Measuring Force (downward) | 0.4 N |
| Measuring Force (side) | 0.3 N |
| Measuring Force (upward) | 0.2 N |
| Sampling Cycle | 1 ms |
| Mechanical Response | 4 Hz (at 20 °C) |
| Operation Indicator | 2-colour LED (red, green) |
| Built-in Ports | None |
| Protocols | None |
| Communication Expansion | None |
| Supply Voltage | Not available (powered by GT2 series amplifier) |
| Power Consumption | Not available |
| Output Type | Not available (sensor head; connects to GT2 amplifier via M8 connector) |
| Operating Temperature | -10 to +55 °C (No freezing) |
| Storage Temperature | Not available |
| Relative Humidity | 35 to 85 % RH (No condensation) |
| Protection Rating | Not available |
| Dimensions (H×W×D) | Not available |
| Weight | Approx. 100 g (not including cable) |
| Lifecycle | Active; official Keyence production status confirmed (Last verified: 2026-09) |
Installation Guide
- Mount the sensor head in downward, side, or upward orientation. Measuring force changes with position. Downward gives 0.4 N; side gives 0.3 N; upward gives 0.2 N.
- Use the M8 connector to link the head to a GT2 series amplifier. No built-in ports or protocols exist on the head.
- Keep the operating temperature between -10 and +55 °C. Avoid freezing conditions.
- Maintain relative humidity from 35 to 85 % RH. Do not allow condensation.
- Verify the 2-colour LED (red, green) for operation status after power-up.
Debugging and Maintenance Convenience
- The absolute Scale Shot System removes tracking error. No zero reset needed after power cycles.
- The 1 ms sampling cycle supports fast inline checks. The 4 Hz mechanical response suits moderate-speed contact tasks.
- Replace the sensor head without recalibrating the amplifier in many cases. The M8 connector simplifies swapping.
- Clean the contact tip regularly. Avoid side loads beyond the specified measuring force.
Compatibility Notes
- Works only with GT2 series amplifiers. It does not operate as a standalone unit.
- No native communication protocols. All signal processing happens in the amplifier.
- The M8 connector matches standard GT2 amplifier ports. Check pinout before connecting third-party cables.
Certification Information
Keyence confirms active production status for the GT2-H12LF as of 2026-09. Specific certifications (CE, UL, RoHS) are not listed in the provided data. Contact info@oiltechcontrols.com for document requests.
Packing List
- 1 × Keyence GT2-H12LF sensor head
- 1 × M8 connector cable (as supplied by Keyence)
- 1 × Quick reference guide
Warranty and Shipping
- 12-month warranty against defects in materials and workmanship.
- Shipping via FedEx, UPS, or DHL. Tracking provided for all orders.
- Technical verification before shipment. We test industrial surplus and refurbished options.
Typical Applications
- Thickness measurement of films, sheets, and small parts.
- Position verification on automated assembly lines.
- Go/no-go inspection of machined components.
- Deflection testing of springs and flexible materials.
- Wear monitoring in production tooling.
Diagnostic Capabilities
- The 2-colour LED shows power and signal status. Red indicates a fault or out-of-range condition. Green shows normal operation.
- Absolute measurement means no lost counts after power loss. The system reads true position immediately.
- Use the amplifier’s monitor functions to check peak, bottom, and current values. This helps spot drift or mechanical binding.
FAQ
Q: Does the GT2-H12LF work without an amplifier?
No. It needs a GT2 series amplifier for power and signal processing.
Q: What is the smallest detectable change?
0.5 µm resolution. Indicated accuracy is 2 µm (p-p).
Q: Can I mount it sideways?
Yes. Side mounting gives 0.3 N measuring force. Upward gives 0.2 N.
Q: Is it RoHS compliant?
Not stated in the provided data. Ask info@oiltechcontrols.com for current documents.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts.
- Global shipment support with FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options available.
- 12-month warranty on every eligible unit.
- Technical verification before shipment on all orders.
- Support for obsolete control systems and hard-to-find parts.
Inquiries: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp)
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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