Ultrasonic Flaw Detector MFD550B Mitech

Ultrasonic Flaw Detector MFD550B – Mitech

Product Overview

The Mitech MFD550B Ultrasonic Flaw Detector is a powerful and compact non-destructive testing (NDT) device designed for the accurate detection and evaluation of internal defects in a wide range of materials. With a large 640×480 TFT LCD display and advanced signal processing capabilities, this instrument allows users to locate cracks, voids, air holes, and other discontinuities with precision.

Its broad measuring range of up to 9999 mm (at steel velocity) and intelligent gate alarm system enhance defect detection efficiency. The MFD550B also includes extensive data and video storage capabilities, making it suitable for both industrial inspections and training applications. Its lightweight, durable design and long battery life ensure reliable performance in both lab and field environments.

Key Features

• High-accuracy flaw detection with a measurement range of 0 to 9999 mm (at steel velocity)

• Adjustable gate alarm with LED and audio indicators to alert for flaw signals

• Stores up to 100 groups of detection parameter settings and 20,000 images or video files

• Supports up to 10 hours of real-time video recording for inspection review and analysis

• Equipped with a real-time clock to automatically log the date and time of each inspection

• USB 2.0 OTG interface for fast data export and report generation

• High-capacity lithium-ion battery supports more than 10 hours of continuous use

• Full English interface with digital shuttle rotary wheel, shortcut keys, and menu navigation

• Automatic performance self-checking to ensure probe accuracy and generate test reports

• Lightweight and portable design (1.45 kg) for ease of use in field applications

Applications

• Weld inspection for detecting internal cracks, voids, and bonding issues

• Quality control of forgings and billets to ensure structural soundness

• Axle and shaft defect testing in automotive and machinery industries

• Evaluation of pressure vessels and tanks for corrosion and fatigue damage

• Structural inspection of turbines, bridges, and critical infrastructure components

Technical Specifications

• Brand: Mitech

• Model: MFD550B

• Measuring range: 0 to 9999 mm (based on steel velocity)

• Horizontal resolution accuracy: ±0.1% of full screen width (FSW)

• Vertical linearity: ±0.2% of full screen height (FSH)

• Display type: 640×480 pixel TFT LCD

• Data storage:

  • 100 groups of flaw detection parameters

  • Up to 20,000 image and video files

• Video recording: Up to 10 hours

• Interface: USB 2.0 OTG for data communication

• Battery life: More than 10 hours continuous operation

• Main unit weight: 1.45 kg

• Main unit dimensions: 263 × 170 × 61 mm

• Package dimensions: 44.5 × 37 × 14 cm

• Total weight (with accessories): 5.5 kg

• Operating temperature: -10°C to +50°C

• Storage temperature: -30°C to +50°C

• Relative humidity: 20% to 95% RH

Operating Principle

The MFD550B functions using the ultrasonic pulse-echo method. A high-frequency sound wave is sent into the material, and when it encounters a boundary or defect, part of the wave reflects back. By measuring the time of flight and amplitude of the echo, the device calculates the location and size of the flaw.

Usage Tips

• Always calibrate the unit using standard test blocks before inspections

• Use appropriate couplants like glycerin or ultrasonic gel for signal transmission

• Store and operate the device in clean, dry, and non-corrosive environments

• Review recorded videos for post-inspection analysis and training purposes

• Back up stored data regularly using USB for reporting and record keeping