GT-76AP Keyence Digital Contact Sensor Amplifier | GT Series Expansion Unit
GT-76AP is a panel mount digital contact sensor amplifier from the Keyence GT series. It delivers 1 µm display resolution and a fast 2,000 times/second sampling rate. This expansion unit uses PNP open collector output and supports 12 to 24 VDC supply. It has no built-in communication port. Add a GT series communication unit for network use. The GT-76AP suits high precision positioning, thickness check, and automated inspection.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts.
- Global shipment support through FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options available.
- 12-month warranty on eligible products.
- Technical verification before shipment for every order.
- Support for obsolete control systems and hard-to-find parts.
Technical Specifications
| Brand | Keyence |
| Model | GT-76AP |
| 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) |
| 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 PNP 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) |
| Operating temperature | -10 to +55 °C (No freezing) |
| Relative humidity | 35 to 85 % RH (No condensation) |
| Weight | Approx. 110 g (including power cable) |
| Lifecycle | Active; official Keyence production status confirmed via product/spec page (Last verified: 2026-09) |
Measurement Range and Frequency Response
The GT-76AP covers a wide display range from -99.999 to 999.999. It reads changes as small as 1 µm. The 2,000 times/second sampling rate supports fast measurement. Seven response settings let engineers balance speed and stability. Choose hsp (1.5 ms) for fast events. Choose longer times for noisy signals.
Sensitivity, Linearity, and Resolution
1 µm display resolution supports fine positioning and small part checks. Stable output helps maintain repeatable results. The PNP open collector output offers HIGH, GO, and LOW judgement. N.O. and N.C. modes are selectable. This helps match different control inputs.
Temperature Range and Environmental Tolerance
The unit works from -10 to +55 °C without freezing. It tolerates 35 to 85 % RH without condensation. These ratings suit many factory floors and machine cabinets. Keep the unit away from direct water, oil mist, and heavy dust.
Noise Immunity and Electrical Stability
Keep supply ripple at 10 % (p-p) or less. Use a stable 12 to 24 VDC source. Route signal cables away from motors and inverters. The 1 V or less residual voltage supports reliable switching. These steps reduce false triggers and improve long term stability.
Installation Guide
- Mount the GT-76AP as a panel mount expansion unit.
- Connect a compatible GT series sensor head and amplifier.
- Use a clean 12 to 24 VDC power supply.
- Keep ripple below 10 % (p-p).
- Wire the PNP open collector output to the control input.
- Set N.O. or N.C. based on the machine logic.
- Select the response time for the application speed.
- Check display values before running production.
Setup and Maintenance Convenience
The panel mount design saves cabinet space. The digital display supports quick setup and live checks. Response time is selectable through the interface. Eco mode cuts power use when full speed is not needed. Routine maintenance is simple: check wiring, clean the display, and confirm stable readings.
Compatibility Notes
The GT-76AP belongs to the Keyence GT series. It works as an expansion unit with compatible GT series components. It has no built-in communication port. For network or PLC communication, add an optional GT series communication unit. These units are sold separately. Confirm amplifier and sensor head compatibility before purchase.
Certification Information
Certification details are not listed in the supplied product data. Please confirm current certification status with Oiltech Controls before order. We can check available documents for your project.
Packing List
- 1x Keyence GT-76AP digital contact sensor amplifier unit
- 1x power cable
- Approx. weight: 110 g including power cable
Warranty and Shipping
Oiltech Controls offers a 12-month warranty on eligible products. We test and verify items before shipment. We ship worldwide by FedEx, UPS, and DHL. Contact us for stock, lead time, and shipping options.
Typical Applications
- High precision positioning
- Thickness and height measurement
- Automated inspection stations
- Semiconductor and electronics assembly
- Small part presence and gap checks
- Machine tool and fixture monitoring
- Obsolete control system support
Diagnostic Capabilities
The digital display shows live measurement values. HIGH, GO, and LOW outputs support pass/fail judgement. Selectable response times help separate real signals from noise. Eco mode helps confirm power conditions. These features support fast fault finding and setup checks.
FAQ
Q: Does the GT-76AP have built-in communication?
A: No. It has no built-in ports or protocols.
Q: How do I add communication?
A: Use an optional GT series communication unit. It is sold separately.
Q: What is the display resolution?
A: The display resolution is 1 µm.
Q: What is the sampling rate?
A: The sampling rate is 2,000 times/second.
Q: What output type does it use?
A: It uses HIGH/GO/LOW PNP open collector output.
Q: What is the supply voltage?
A: The supply voltage is 12 to 24 VDC.
Q: What is the operating temperature?
A: The operating temperature is -10 to +55 °C without freezing.
Q: Does it come with a warranty?
A: Yes. Eligible products include a 12-month warranty.
Contact Oiltech Controls
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
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