GT2-PA12 Keyence Digital Contact Sensor

GT2-PA12 Standard Contact Sensor Head by Keyence

Key Technical Specifications

• Brand: Keyence
• Model: GT2-PA12
• Series: GT2 series
• Category: Digital contact sensor head, pencil type, standard
• Detection system: Scale Shot System, absolute type with no tracking error
• Measuring range: 12 mm
• Resolution: 0.1 µm
• Indicated accuracy: 1 µm (p-p)
• Measuring force: 0.2 N when you mount the head downward
• Sampling cycle: 1 ms
• Mechanical response: 10 Hz at 20 °C
• Operation indicator: 2-colour LED in red and green
• Supply voltage and power consumption: The GT2 series amplifier supplies both
• Output type: The sensor head connects to a GT2 amplifier through an M8 connector
• Operating temperature: 0 to +55 °C with no freezing
• Relative humidity: 35 to 85 % RH with no condensation
• Protection rating: IP67 (IEC)
• Weight: Approx. 35 g, excluding cable but including relay connector

Performance Highlights

• The absolute Scale Shot System removes tracking error during every measurement cycle.
• A 0.1 µm resolution supports fine positioning tasks in precision assembly and inspection.
• The 1 µm (p-p) indicated accuracy keeps repeatable results within a tight tolerance band.
• A 1 ms sampling cycle and 10 Hz mechanical response suit fast inline measurement.
• The 12 mm stroke covers a wide working range without changing fixture height.
• The IP67 rating blocks dust and water ingress on demanding production floors.
• The 2-colour LED gives clear pass and fail status at a glance.

Installation Guide

• Mount the GT2-PA12 on a rigid bracket to protect measurement accuracy.
• Keep the measuring spindle perpendicular to the target surface for reliable contact.
• Observe the 0.2 N measuring force when you mount the head downward.
• Connect the M8 connector to a compatible GT2 series amplifier before power-up.
• Keep the head within 0 to +55 °C and 35 to 85 % RH during operation.
• Route the cable away from strong electrical noise sources to protect signal quality.
• Check the LED indicator after installation to confirm normal operation.

Environmental Durability and Noise Immunity

• The IP67 enclosure resists dust and water in machine-tool and assembly environments.
• The absolute detection principle ignores power interruptions and resumes correct position data.
• The pencil-type body fits tight spaces near the measurement point.
• The shielded M8 connection and amplifier pairing support stable signal transmission.
• The 35 g weight reduces load on small fixtures and moving slides.

Package Contents

• 1 × Keyence GT2-PA12 sensor head
• 1 × relay connector
• 1 × protective packaging

Shipping and Support

• We ship with FedEx, UPS and DHL.
• We dispatch in-stock items within 5 days.
• We accept returns within 30 days.
• All units are brand new and original.

FAQ

• Q: What is the resolution of the GT2-PA12?
  A: The GT2-PA12 resolves 0.1 µm across its 12 mm range.
• Q: How does the standard type differ from other GT2 versions?
  A: The standard type suits general-purpose measurement with balanced contact behavior.
• Q: Does this sensor head work without an amplifier?
  A: No. The GT2 series amplifier supplies power and reads the sensor signal.
• Q: What is the indicated accuracy?
  A: The indicated accuracy is 1 µm (p-p).
• Q: How fast does the sensor sample?
  A: It samples every 1 ms and offers 10 Hz mechanical response.
• Q: What is the operating temperature range?
  A: The head works from 0 to +55 °C with no freezing.
• Q: Is the sensor head waterproof?
  A: Yes. It carries an IP67 rating under IEC standards.
• Q: How much measuring force does it apply?
  A: It applies 0.2 N when you mount the head downward.
• Q: Do you have stock and how fast do you ship?
  A: We keep stock and dispatch within 5 days via DHL, FedEx or UPS.
• Q: What is your return policy?
  A: We accept returns within 30 days.