Product Overview
The Keyence GT-76A is a digital contact sensor amplifier unit. It belongs to the GT series. This unit is designed for panel mount installation. It works as an expansion unit. It delivers stable measurement for industrial automation tasks.
The GT-76A offers a wide display range from -99.999 to 999.999. It provides 1 µm display resolution. The sampling rate reaches 2,000 times per second. Users can select response times from hsp (1.5 ms) to 5 s. This makes it suitable for fast inspection and slow trend monitoring.
The unit outputs HIGH/GO/LOW NPN open collector signals. It supports N.O./N.C. selectable logic. It runs on 12 to 24 VDC. Power consumption is low, especially in Eco mode. The GT-76A has no built-in communication ports. But it can connect to optional GT series communication units.
This amplifier unit is active in production. Keyence confirms official production status. Last verified: 2026-09.
Technical Specifications
| Brand | Keyence |
| Model | GT-76A |
| Series | GT series |
| Type | Digital contact sensor amplifier unit |
| Mounting | Panel mount, expansion unit |
| Display range | -99.999 to 999.999 |
| Display resolution | 1 µm |
| Sampling rate | 2,000 times/second |
| Response time | hsp (1.5 ms), 5 ms, 10 ms, 100 ms, 500 ms, 1 s, 5 s (selectable) |
| Measurement range | Depends on connected GT series sensor head |
| Frequency response | Up to 2,000 samples per second |
| Sensitivity | 1 µm display step |
| Linearity | Depends on sensor head and setup |
| Temperature range | -10 to +55 °C (No freezing) |
| Environmental tolerance | 35 to 85 % RH (No condensation) |
| Anti-interference | Industrial-grade design for stable readings |
| Supply voltage | 12 to 24 VDC, ripple (p-p) 10 % or less |
| Power consumption | Normal: 1,140 mW (95 mA) or less at 12 V; 1,200 mW (50 mA) or less at 24 V. Eco: 600 mW (50 mA) or less at 12 V; 840 mW (35 mA) or less at 24 V |
| Output type | HIGH/GO/LOW NPN open collector, max. 50 mA (40 V or less), residual voltage 1 V or less, N.O./N.C. selectable |
| Built-in ports | None |
| Protocols | None |
| Communication expansion | Via optional GT series communication units (sold separately) |
| Protection rating | Not available |
| Dimensions (H×W×D) | Not available |
| Weight | Approx. 110 g (including power cable) |
| Lifecycle | Active; official Keyence production status confirmed |
Installation Guide
- Mount the GT-76A on a panel. Use the expansion unit slot.
- Connect a compatible GT series sensor head.
- Wire the power supply to 12 to 24 VDC.
- Keep ripple below 10 % (p-p).
- Set output logic to N.O. or N.C. as needed.
- Choose the response time for your application.
- Verify grounding and cable routing. This reduces electrical noise.
Setup and Maintenance Convenience
The GT-76A supports fast setup. Users can select response times from a clear list. The NPN output works with common PLC inputs. N.O./N.C. selection simplifies wiring changes. Eco mode lowers power use. Maintenance is simple. Check the sensor head, cable, and mounting. Clean the display area with a dry cloth. Do not use harsh chemicals.
Compatibility Notes
- Works as an expansion unit in a GT series system.
- Requires a compatible GT series sensor head.
- No built-in communication port. Use optional GT series communication units for data output.
- NPN output suits many industrial controllers.
- Power supply must meet 12 to 24 VDC and ripple limits.
Certification Information
Certification details are not available in the provided data. Please confirm with Keyence or your supplier before purchase. Oiltech Controls can help verify unit labels and documents.
Packing List
- GT-76A amplifier unit
- Power cable
- Basic installation documents if available
- Protective packaging
Optional communication units and sensor heads are sold separately.
Warranty and Shipping
Oiltech Controls offers a 12-month warranty on this product. We ship by FedEx, UPS, and DHL. Tracking is provided. Contact us for lead time and stock status.
Typical Applications
- Position checking on production lines
- Thickness and height measurement
- Go/No-Go inspection
- Automated assembly verification
- Obsolete control system support
- Quality control stations
Diagnostic Capabilities
The GT-76A provides HIGH/GO/LOW output judgment. This helps operators spot out-of-tolerance parts fast. The digital display shows fine measurement steps. Users can monitor trends and adjust response time. For communication diagnostics, add an optional GT series communication unit.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts
- Global shipment support
- Tested industrial surplus and refurbished options
- 12-month warranty
- Technical verification before shipment
- Support for obsolete control systems
FAQ
Q: What is the display resolution of the GT-76A?
A: It provides 1 µm display resolution.
Q: Does the GT-76A have built-in communication?
A: No. It needs optional GT series communication units.
Q: What output type does it use?
A: It uses HIGH/GO/LOW NPN open collector output.
Q: What is the supply voltage?
A: It runs on 12 to 24 VDC.
Q: What is the warranty period?
A: Oiltech Controls offers a 12-month warranty.
Q: How do you ship?
A: We ship by FedEx, UPS, and DHL.
Q: Can you support obsolete systems?
A: Yes. We support obsolete control systems and hard-to-find parts.
Contact Information
Email: info@oiltechcontrols.com
Phone / WhatsApp: +86 158 8020 0923
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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