Keyence Contact Displacement Sensor GT2-P71P
原价为：$303.36。$275.78当前价格为：$275.78。
Short Description
KEYENCE GT2 Series – High-Accuracy Digital Contact Displacement Sensor
High-precision contact sensor with absolute positioning (Scale Shot System II). 0.1μm resolution, 12–50mm measuring range, IP67G oil-resistant for harsh environments. Choose from 29 head variations: pencil, low-force, air push, box, and short-range types. Supports EtherNet/IP, PROFINET, CC-Link, and EtherCAT®. No zero-point adjustment required – power on and measure.
Summary of Key Features
| Feature | Benefit |
|---|---|
| Scale Shot System II | Absolute positioning, no tracking errors, no zero-point adjustment |
| IP67G / NEMA Type 13 | Oil & water resistant – use on machine floors |
| 0.1μm resolution | Micron-level precision for tight tolerances |
| Low-force models (0.1N) | Measure soft or fragile materials without damage |
| 29 head variations | Fit any application – pencil, box, air push, angled |
| Multiple field networks | Easy PLC/PC integration for data collection |
Main Product Series – Function & Application Comparison
| Sensor Type | Detection Principle | Key Features | Typical Applications |
|---|---|---|---|
| Pencil Type (GT2-P series) | Scale Shot System II (absolute) | Ultra-compact Ø8mm body, 12mm range, resolution down to 0.1μm, IP67G oil-resistant | PCB warpage measurement, tight-space assembly inspection, electronic components |
| Low-Force Type (GT2-PxxxF) | Scale Shot System II (absolute) | Ultra-low measuring force (0.1N upward), 12mm range, 0.5μm resolution | Soft/warped materials, fragile components, wafers, rubber parts |
| Air Push Type (GT2-PA12K) | Scale Shot System II (absolute) | Pneumatic spindle extension, 0.24–0.26MPa operating pressure, no dust boot | Delicate surface measurement, automated inspection stations |
| Box Type (GT2-H series) | Scale Shot System I (absolute) | Compact rectangular body, 12/32/50mm range, 0.1–0.5μm resolution, IP67 rated | Dimensional inspection, assembly verification, fixture integration |
| Short-Range Type (GT2-S series) | Differential Transformer (LVDT) | 1–5mm range, 0.1μm resolution, 1ms sampling cycle, IP67G rated | High-precision thickness/gap measurement, lab use |
Typical Applications & Industries:
✓ PCB warpage & component height measurement ✓ Gear assembly clearance inspection
✓ Automotive parts dimensional check ✓ Precision machining QC
✓ Electronics manufacturing & semiconductor ✓ Medical device assembly
Detailed Description – KEYENCE GT2 Series Contact Displacement Sensor
1. Scale Shot System II – Absolute Positioning Without Tracking Errors
The GT2 Series features KEYENCE’s proprietary Scale Shot System II detection method. This overcomes the disadvantages of both conventional LVDT and pulse scale methods .
How it works: A CMOS sensor scans an absolute-value glass scale with complex patterned slits. The spindle position is detected directly as absolute position information.
Key advantages:
✓ No zero-point adjustment required after power-on
✓ No tracking errors even during high-speed spindle movement
✓ High accuracy maintained across entire measuring range
2. IP67G Oil-Resistant Design – Built for Harsh Environments
The GT2 Series sensor heads – including connectors and cables – comply with IP67G (JIS) and NEMA Type 13 standards .
Durable construction:
Seamless one-piece cast body (no adhesives, uses degradation-resistant gaskets)
High-strength linear ball bearings for smooth operation
Lightweight spindle reduces friction wear
Polyurethane cables resist oil corrosion
Result: Stable measurement even in environments with splashing water or oil. Achieves 200 million cycle service life .
3. Rich Sensor Head Lineup – Choose from 29 Variations
The GT2 Series offers extensive head options to match any application requirement .
| Head Type | Models | Key Feature |
|---|---|---|
| Pencil type | GT2-P12K / P12 / P12F / P12L | Standard 12mm range, 0.1–0.5μm resolution |
| Low-force pencil type | GT2-P12KF / P12KLF | 0.1N upward force for delicate parts |
| Air push pencil type | GT2-PA12K / PA12 | Pneumatic extension, 0.24–0.26MPa |
| Box type (standard) | GT2-H12K / H12 / H12L | 12mm range, 1ms sampling |
| Box type (long range) | GT2-H32 / H50 | 32mm / 50mm measuring range |
| Short-range type | GT2-S1 / S5 | 1–5mm range, LVDT detection |
| Angled type | GT2-A12K / A12 / A12L | 12mm range, angled head design |
4. High Accuracy & Resolution Specifications
| Parameter | GT2-P12K | GT2-P12 | GT2-H32 | GT2-S1 |
|---|---|---|---|---|
| Measuring range | 12 mm | 12 mm | 32 mm | 1 mm |
| Resolution | 0.1 μm | 0.5 μm | 0.5 μm | 0.1 μm |
| Indicated accuracy | 1 μm (p-p) | 2 μm (p-p) | 3 μm (p-p) | 1 μm (p-p) |
| Sampling cycle | 4 ms | 4 ms | 1 ms | 1 ms |
| Measuring force (down) | 1.0 N | 1.0 N | 2.1 N | 1.12 N |
| Enclosure rating | IP67G | IP67G | IP67 | IP67G |
Data sourced from KEYENCE official specifications
5. Flexible Communication & Integration
The GT2 Series supports major field networks for seamless PLC and PC integration :
Supported protocols: EtherNet/IP®, DeviceNet®, CC-Link, EtherCAT®, PROFINET, PROFIBUS
Multi-unit connection: Data from up to 15 connected units can be transmitted simultaneously
Simplified wiring: Requires only power and communication cables from the main unit
Remote setup: Settings can be changed from touch panel, PC, or PLC
Software support: GT2 USB communication software provides statistical functions including graph display, histogram view, and calculation functions (arithmetic, trigonometric, inverse trigonometric) .
6. Application Examples
PCB Warpage & Component Height Measurement
Measures chip mounting height, capacitor orientation, and PCB flatness. Low-force models (0.1N) reduce load on fragile boards .
Gear Assembly Clearance Check
Simultaneously measures multiple points in tight spaces around gears. IP67G resistance withstands oils and chemicals used in assembly .
Tight-Space Dimensional Inspection
Pencil-type sensor heads (Ø8mm) allow installation in confined areas. Multiple heads can be mounted in close proximity for simultaneous multi-point measurement .
Selection Guide – Understanding the Naming Convention (GT2 Series)
KEYENCE GT2 part numbers encode key specifications. Example: GT2-P12KF
| Code | Meaning | Options |
|---|---|---|
| GT2 | Series: High-Accuracy Digital Contact Sensor | GT2 series |
| – | Separator | — |
| P | Head shape: Pencil type | P (pencil), H (box), S (short-range), A (angled) |
| 12 | Measuring range | 12 (12mm), 32 (32mm), 50 (50mm), 1 (1mm), 5 (5mm) |
| K | Resolution / Accuracy | K = 0.1μm high-accuracy, (blank) = 0.5μm standard |
| F | Measuring force | F = low-force (0.1–0.2N), (blank) = standard force, L = long stroke |
| L | Additional option | L = low-force variant suffix |
Model decoder examples:
| Model Number | Decoding |
|---|---|
| GT2-P12K | Pencil type, 12mm range, 0.1μm resolution, standard force |
| GT2-P12KF | Pencil type, 12mm range, 0.1μm resolution, low-force |
| GT2-P12L | Pencil type, 12mm range, 0.5μm resolution, low-force |
| GT2-H32 | Box type, 32mm range, 0.5μm resolution |
| GT2-PA12K | Air push pencil type, 12mm range, 0.1μm resolution |
| GT2-S1 | Short-range type, 1mm range, LVDT detection |
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