Keyence GT2-71MCP High-Accuracy Digital Contact Sensor

The Keyence GT2-71MCP is a high-precision digital contact sensor amplifier, designed for industrial measurement, inspection, and quality control applications. With PNP open-collector and analog 4–20 mA output, DIN-rail mounting, and expandable connectivity, this amplifier enables accurate and stable data acquisition in demanding automation environments.

Technical Specifications

Manufacturer: Keyence
Product Series: GT2 Series
Model: GT271MCP
Type: Digital Contact Sensor Amplifier
Mounting Method: DIN-Rail Mount
Output Type: PNP
Unit Type: Main Unit

Power & Consumption

• Power Voltage: 20 to 30 VDC (Ripple P-P ≤ 10%, Class 2)
• Power Consumption:
  • Normal Mode: 2,700 mW (30 V, 90 mA Max)
  • Eco Mode: 2,200 mW (30 V, 73.3 mA Max)

Display & Measurement

• Display Type: 6+½-Digit 7-Segment LED (Red)
• Bar Display: 13-Level Two-Color (Red/Green)
• Status Indicators: Red and Green LEDs
• Display Range: -199.999.9 to 199.999.9
• Resolution: 0.1 μm (0.004 Mil)

Input & Output Functions

Control Inputs:

• No-Voltage Input (Timing, Preset, Reset, Bank Input)

Control Outputs (PNP Open Collector):

• Output Signals: HH / HI / GO / LO / LL
• Voltage: 30 VDC Max
• Current: 50 mA Max
• Residual Voltage: ≤ 1 V

Analog Output:

• Type: 4–20 mA
• Load Resistance: 350 Ω Max
• Output Range: Adjustable

Response Time

• Standard Modes: hsp(3)/5/10/100/500/1000 ms
• With GT2-Pxxx Probes: hsp(12)/20/40/400/2000/4000 ms

Environmental Resistance

• Operating Temperature:
  • Main Unit Only: -10 to +50°C
  • With Expansion Units: -10 to +45°C
• Relative Humidity: 35% to 85% RH (No Condensation)
• Vibration Resistance:
  • Frequency: 10–55 Hz
  • Amplitude: 1.5 mm
  • Duration: 2 hrs in X, Y, Z

Material & Construction

• Main Case: Polycarbonate
• Key Top: Polyacetal
• Front Sheet: PET
• Cable: PVC
• Weight: Approx. 70 g

Expansion Limitations

• 2–8 Connected Units (Inc. Main):
  • Output Current: 20 mA Max
  • Temp Range: -10 to +45°C
• 9–15 Connected Units (Inc. Main):
  • Output Current: 10 mA Max
  • Residual Voltage: ≤ 1.5 V
  • Temp Range: -10 to +45°C

Key Features & Benefits

✅ Ultra-High Precision: 0.1 μm (0.004 Mil) resolution for high-accuracy measurements.

✅ Versatile Display & Indicators: Large LED display with bar graph and real-time status LEDs.

✅ Multiple Response Time Options: Adjustable from 3 ms to 4000 ms for optimized system performance.

✅ Durable & Industrial-Grade: Withstands shock, vibration, and harsh automation environments.

✅ Expandable System: Connect up to 15 units for multi-sensor installations.

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