Keyence GT-71AP General Purpose Digital Contact Sensor
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Keyence GT – 71AP General Purpose Digital Contact Sensor
Product Overview
Main Functions
- High – Precision Digital Displacement Measurement
It delivers precise displacement readings with a 1 µm resolution and a 2,000 – samples/second sampling rate, accurately measuring object position, thickness, and runout. It supports a display range of – 99.999 to 999.999 µm, meeting the demands of high – precision applications such as checking component clearances in automotive engines and verifying the thickness of electronic circuit boards.
- Flexible Parameter Configuration and Storage
The 4 – bank parameter storage function enables users to save and switch between four distinct measurement setups quickly, which is ideal for production lines handling multiple product types. The preset and multiplier setting functions allow for customized measurement logic, while the variable hysteresis and response time settings (1.5 ms to 5 s) optimize detection performance for different target materials and motion speeds.
- Real – Time Monitoring and Control
The 6 – digit LED display shows measurement data in real time, and the HIGH/GO/LOW PNP output signals (N.O./N.C. switchable) trigger timely control actions, like stopping a production line when measurements are out of tolerance. The core alarm function alerts users to probe malfunctions or measurement errors, preventing defective products from flowing to the next process.
- Efficient Power and Timing Management
The power – saving (eco) mode reduces power consumption (to 600 mW at 12 V, 840 mW at 24 V), cutting energy costs during long – term operation. The self – timing function enables automatic measurement triggering, eliminating the need for external timing signals and simplifying system integration.
- Seamless System Integration
The unit integrates easily with PLCs, HMIs, and other industrial control systems via its PNP open – collector outputs (max 50 mA, 30 V). Control inputs (timing, preset, bank) support non – voltage signals, facilitating quick connection to external control devices for automated measurement workflows.
Technical Features
| Feature | Details |
|---|---|
| Sensor Type | Digital contact sensor amplifier unit (PNP output, main unit) |
| Display | 6 – digit 7 – segment LED (red); display range: – 99.999 to 999.999 µm |
| Resolution | 1 µm |
| Sampling Rate | 2,000 samples/second |
| Response Time | hsp (1.5 ms), 5 ms, 10 ms, 100 ms, 500 ms, 1 s, 5 s (selectable) |
| Outputs | 3 PNP open – collector outputs (HIGH/GO/LOW); max 50 mA (30 V max), residual voltage ≤1 V; N.O./N.C. switchable |
| Control Inputs | Timing (≥2 ms input time), Preset/Bank (≥20 ms input time); non – voltage inputs |
| Parameter Storage | 4 – bank function for saving/recalling measurement setups |
| Power Supply | 12–24 VDC (ripple ≤10% P – P) |
| Power Consumption | Normal: 1,140 mW (95 mA) at 12 V; 1,200 mW (50 mA) at 24 V
Eco mode: 600 mW (50 mA) at 12 V; 840 mW (35 mA) at 24 V |
| Environmental Resistance | Operating temp: – 10°C to +55°C (no freezing); 35–85% RH (no condensation)
Storage temp: – 20°C to +60°C (no freezing); 35–85% RH (no condensation) |
| Housing Material | Main body: Polycarbonate; key top: Polyacetal; front sheet: Polycarbonate; cable: PVC |
| Special Functions | Preset, hold, variable hysteresis, multiplier setting, calibration, core alarm |
Product Dimensions and Weight
| Item | Details |
|---|---|
| Main Body Dimensions | 17.5 mm (W) × 90 mm (H) × 60 mm (D) (DIN – rail compatible) |
| Mounting Type | DIN rail (35 mm standard) |
| Cable | 2 – meter PVC – insulated power cable (2 – core) |
| Cable Diameter | 3 mm |
| Weight | Approximately 110 g (including main body and power cable) |
| Mounting Hardware | Compatible with standard DIN – rail clips for tool – free installation |
| Indicator Lights | Red LED for measurement display; status LEDs for power, output, and alarm |
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Atifts Technology Co., Ltd. @ 2024
