Keyence GT2-550 High-Accuracy Digital Contact Sensor Amplifier
Keyence GT2-550 is a high-accuracy digital contact sensor amplifier unit. It belongs to the GT2 series. This is a multi-head expansion unit for DIN-rail mounting. It has no built-in communication ports. You can add communication via optional GT2 series units. The display resolution is 0.1 µm. It delivers precise measurement for industrial automation.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts.
- Global shipment support — FedEx, UPS, DHL.
- Tested surplus and refurbished options.
- 12-month warranty on every unit.
- Technical verification before shipment.
- Support for obsolete control systems.
Technical Specifications
| Brand | Keyence |
| Model | GT2-550 |
| Series | GT2 series |
| Type | High-accuracy digital contact sensor amplifier unit |
| Mounting | DIN-rail mount, multi-head expansion unit |
| Display range | -199.9999 to 199.9999 |
| Display resolution | 0.1 µm |
| Response time | hsp(3)/5/10/100/500/1,000 ms hsp(12)/20/40/400/2,000/4,000 ms with GT2-Pxxx heads |
| Control input | Timing / preset / reset / bank no-voltage input |
| Built-in ports | None |
| Protocols | None |
| Communication expansion | Via optional GT2 series communication units (sold separately) |
| Supply voltage | 10 to 30 VDC, ripple (P-P) 10% included, Class 2 |
| Power consumption | Supplied by main unit |
| Output type | HH/HI/GO/LO/LL NPN open collector 40 V / 50 mA or less, residual voltage 1 V or less |
| 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. 95 g |
| Lifecycle | Active — official Keyence production status confirmed (Last verified: 2026-09) |
Installation Guide
- Mount on a standard DIN rail. Use the expansion bus for multi-head setups.
- Connect 10–30 VDC power. Keep ripple within 10% P-P.
- Wire control inputs for timing, preset, reset, or bank switching.
- Use no-voltage contacts for control input. Avoid voltage on these pins.
- For communication, attach an optional GT2 series communication unit.
Commissioning and Maintenance
- Set response time to match your measurement speed. Faster settings reduce noise immunity.
- Use the 0.1 µm display resolution for fine alignment and inspection.
- Check output wiring for NPN open collector. Max 40 V, 50 mA.
- Keep the unit dry. Operating humidity is 35–85% RH, no condensation.
- Verify all connections before power-up. Technical verification is available before shipment.
Compatibility Notes
- Works with GT2 series sensor heads. Use GT2-Pxxx heads for extended response times.
- No built-in communication. Add a GT2 communication unit for network or serial output.
- Designed as an expansion unit. Pair with a main GT2 amplifier unit for full functionality.
- NPN open collector outputs. Check PLC input compatibility before wiring.
Typical Applications
- Thickness measurement of films, sheets, and plates.
- Step height and gap detection in precision assembly.
- Position verification for small components.
- Wear and deflection checks on production tooling.
- In-line inspection for automotive and electronics parts.
Diagnostic Capabilities
- HH / HI / GO / LO / LL output states give quick pass/fail judgment.
- Response time selection helps isolate noise or vibration issues.
- No-voltage input allows external reset and timing diagnostics.
- Output residual voltage ≤ 1 V helps confirm signal integrity.
Certifications and Packaging
- Lifecycle status: Active. Official Keyence production status confirmed.
- Package includes: GT2-550 amplifier unit only. Sensor heads and communication units sold separately.
- Warranty: 12 months from Oiltech Controls.
- Shipping: FedEx, UPS, DHL worldwide.
FAQ
- Q: Does the GT2-550 have built-in communication?
A: No. Add an optional GT2 series communication unit. - Q: What is the display resolution?
A: 0.1 µm. - Q: Can I use it alone?
A: It is an expansion unit. Pair with a main GT2 amplifier for full operation. - Q: What is the warranty?
A: 12 months. - Q: How do you ship?
A: FedEx, UPS, or DHL. Global support available.
Contact Oiltech Controls
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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