Keyence GT2-72P High-Accuracy Digital Contact Sensor Amplifier Unit
Keyence GT2-72P is a high-accuracy digital contact sensor amplifier unit from the GT2 series. It mounts on a DIN rail as an expansion unit. The unit delivers a display resolution of 0.1 µm for precise measurement tasks. It supports PNP open collector output. No built-in communication ports. Add optional GT2 series communication units for network integration. Designed for industrial automation, this amplifier offers fast response and flexible control input. Oiltech Controls supplies tested units with a 12-month warranty.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Keyence |
| Model | GT2-72P |
| Series | GT2 series |
| Type | High-accuracy digital contact sensor amplifier unit |
| Mounting | DIN-rail mount, expansion unit |
| Measurement Range | -199.999.9 to 199.999.9 (display range) |
| Resolution | 0.1 µm |
| Response Time | hsp(3)/5/10/100/500/1,000 ms (standard heads) hsp(12)/20/40/400/2,000/4,000 ms (with GT2-Pxxx heads) |
| Frequency Response | Depends on response time setting (up to 1 kHz for hsp(3) mode) |
| Linearity | Not specified (refer to sensor head specifications) |
| Sensitivity | Not specified (amplifier unit only) |
| Control Input | Timing / preset / reset / bank no-voltage input |
| Output Type | HH/HI/GO/LO/LL PNP open collector, 40 V / 50 mA or less, residual voltage 1 V or less |
| Supply Voltage | 10 to 30 VDC, ripple (p-p) 10 % included, Class 2 |
| Power Consumption | 2,200 mW or less (73.3 mA or less at 30 V) |
| Operating Temperature | -10 to +50 °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. 140 g (including power cable) |
| Communication | None built-in. Optional GT2 series communication units sold separately. |
| Environmental Resistance | No freezing, no condensation. Protection rating not available. |
| Anti-Interference | Not specified. Use shielded cables and proper grounding for noisy environments. |
| Certification | Not specified. Contact Oiltech Controls for details. |
Installation Guide
- Mount the GT2-72P on a standard DIN rail. Use the expansion unit slot.
- Connect the power cable. Supply voltage: 10 to 30 VDC. Observe polarity.
- Attach the sensor head to the amplifier. Use Keyence GT2 series heads only.
- Wire control inputs for timing, preset, reset, or bank switching. Use no-voltage contacts.
- Wire PNP outputs to your PLC or indicator. Max load: 50 mA at 40 V.
- For communication, add an optional GT2 series communication unit.
Debugging and Maintenance Convenience
- Use the display range -199.999.9 to 199.999.9 for easy zero setting.
- Select response time via hsp settings to match your machine cycle.
- Preset and reset functions simplify offset adjustments.
- Bank switching allows fast changeover between saved settings.
- No routine maintenance needed. Keep the unit dry and clean.
Compatibility Notes
- Works with Keyence GT2 series sensor heads. Use GT2-Pxxx heads for slower response modes.
- Compatible with optional GT2 series communication units for fieldbus or serial output.
- PNP output suits many PLCs and industrial controllers. Check input type before wiring.
- DIN-rail mount fits standard 35 mm rails. Expansion unit requires a main amplifier unit.
Typical Applications
- Thickness measurement of films, sheets, and metal foils.
- Gap and step detection in assembly lines.
- Position verification for robotics and pick-and-place systems.
- Dimension inspection of small precision parts.
- In-process gauging for automotive and electronics manufacturing.
Diagnostic Capabilities
- HH / HI / GO / LO / LL output indicators show measurement status.
- Display shows live values and error codes for fast troubleshooting.
- Timing input helps capture peak or bottom values for diagnostics.
- No built-in self-diagnostics. Use external PLC logic for advanced monitoring.
Why Buy From Oiltech Controls?
- Over 15 years of experience in industrial automation spare parts.
- Global shipping support. We ship with FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options available.
- 12-month warranty on every unit we sell.
- Technical verification before shipment. We test and inspect each item.
- Support for obsolete control systems. We help you find hard-to-get parts.
FAQ
Q: What is the display resolution of the GT2-72P?
A: The resolution is 0.1 µm.
Q: Does the GT2-72P have built-in communication?
A: No. You need an optional GT2 series communication unit for network or serial output.
Q: What output type does this amplifier use?
A: It uses PNP open collector output (HH/HI/GO/LO/LL).
Q: Can I use this unit as a standalone amplifier?
A: No. It is an expansion unit. It needs a main amplifier unit on the DIN rail.
Q: What is the warranty period?
A: 12 months from the date of purchase.
Q: How fast can the GT2-72P respond?
A: As fast as hsp(3) = 3 ms with standard heads. It can go down to 12 ms with GT2-Pxxx heads.
Q: What is the supply voltage?
A: 10 to 30 VDC, Class 2, with 10% ripple allowed.
Package List
- 1x Keyence GT2-72P amplifier unit
- 1x Power cable (included, approx. 140 g total weight)
- Instruction manual not included. Download from Keyence or contact us.
Warranty and Shipping
All products come with a 12-month warranty. We ship worldwide via FedEx, UPS, and DHL. Tracking number provided. Contact us for expedited shipping options.
For inquiries: info@oiltechcontrols.com or +86 158 8020 0923 (WhatsApp).
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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