BRK BT-T7A Through-Coating Ultrasonic Thickness Gauge

The BRK BT-T7A is a portable ultrasonic thickness gauge designed for non-destructive measurement of base material thickness without removing surface coatings. It accurately measures true substrate thickness through paint, fireproof coatings and corrosion layers up to 3 mm thick, reducing inspection time and eliminating unnecessary surface preparation.

Using advanced ultrasonic pulse-echo technology, the BT-T7A delivers dependable readings across a wide range of materials including steel, aluminum, plastics, glass and other homogeneous materials. Its rugged construction and straightforward operation make it well suited for industrial inspection, preventive maintenance and quality control applications.

• Through-Coating Measurement Mode
  Measures base metal thickness through coatings up to 3 mm thick without removal.
• Wide Measurement Range
  0.7 to 350 mm in standard mode on steel. 3 to 25 mm in through-coating mode.
• High Measurement Accuracy
  Resolution of 0.01 mm with accuracy of ±(0.6%H + 0.1) mm.
• Adjustable Sound Velocity
  Velocity range from 500 to 18,000 m/s for material calibration flexibility.
• Selectable Units
  Displays readings in millimeters or inches.
• Field-Ready Design
  Powered by AA batteries for convenient operation with over 50 hours typical battery life.

Typical Applications

• Corrosion monitoring in pipelines, tanks and pressure vessels
• Marine hull and ship structure inspection
• Structural steel thickness verification
• Automotive and aerospace component inspection
• Manufacturing quality control and fabrication verification

What’s Included

• BT-T7A thickness gauge
• Standard 10 mm ultrasonic probe
• Calibration block
• Couplant
• Carrying case
• User manual