※ Thickness measurement range: 2.0 mm to 120 mm for low-carbon steel; other ranges are available upon request.

※ Lift-off distance: greater than 6 mm for low-carbon steel;

※ Resolution: 0.001 mm;

※ Measurement accuracy: ±(0.01 + 2‰ × thickness) mm;

※ Transmission frequency: 2 MHz to 5 MHz;

※ Adjustable gain range: 0–100 dB;

※ Sound velocity adjustment range: 1000 m/s to 9999 m/s;

※ Operating modes: A-scan, A-scan + thickness profile, thickness profile;

※ Thickness measurement modes: automatic thickness measurement, manual thickness measurement;

※ Display: 4.3-inch LCD, with adjustable brightness for clear visibility even in direct sunlight;

※ Test curvature radius: for carbon steel, not less than 10 mm;

※ Power supply: Internal lithium battery;

※ Operating time: ≥8 hours;

※ External encoder: supported;

※ High-temperature sonic speed compensation: supported;

※ Data storage and retrieval: supported;

※ Weight: approximately 640 g;

※ Dimensions: approximately 200 mm × 123 mm × 35 mm;

※ Storage ambient temperature: -20°C to 50°C;

※ Wave type: shear wave;

※ Excitation method: permanent magnet;

※ Electromagnetic ultrasonic transducer for ambient-temperature operation: temperature range –40°C to 80°C;

※ Electromagnetic ultrasonic high-temperature transducer: temperature range –40°C to 650°C; other temperature ranges available upon customization.

The materials tested include conductive or ferromagnetic materials such as carbon steel, low-alloy steel, stainless steel, special steels, cast iron, aluminum alloys, and titanium alloys.

Optional accessories

The optional accessories for the electromagnetic ultrasonic thickness gauge HT300 are shown in Figure 2.4. They include an ambient‑temperature electromagnetic ultrasonic thickness‑measurement transducer, a high‑temperature electromagnetic ultrasonic thickness‑measurement transducer, a long high‑temperature handle, a short high‑temperature handle, a flat guide roller, and an encoder assembly, among others.

☆ The petroleum, natural gas, and chemical industries, including oil pipelines, natural gas pipelines, oil storage tanks, chemical vessels, pressure vessels, and more.

☆ The steel industry, such as steel plates, steel pipes, etc.

☆ Wind power industry, such as bolt tensioning length, etc.

☆ The shipbuilding industry, such as hulls and ship plates, etc.

☆ The thermal power plant industry, such as heat exchange tubes and boilers, etc.