Mitech MFD620C Ultrasonic Flaw Detector:

Product Overview

A multi-color TFT LCD and a variety of innovative capabilities are included in the modern digital ultrasonic flaw detector Mitech MFD620C, which was designed to fulfill demanding inspection standards. Mitech MFD620C has strong fault identification and measuring skills, a large amount of data storage, and a high-speed USB interface for sending comprehensive inspection data to a PC.

Function & application

Mitech MFD620C has a wide range of applications, including the detection and size of concealed cracks, voids, disbands, and other discontinuities in welds, forgings, billets, axles, shafts, tanks, pressure vessels, turbines, and structural elements.

Working Principle

1. When a flaw appears in a workpiece made of homogeneous material, the defect will reveal the interface between the defect and the workpiece’s other media.

2. The pulsating ultrasonic wave will create reflection when it comes into contact with the interface because the acoustic resistance is different there.

3. The probe will take in the energy that has been reflected. The fault depth in the workpiece will then be represented by a reflection waveform at a specific abscissa point on the display screen.

4. Due to various imperfections, each of which reflects the nature of the defect, the height and form of the reflecting wave will change.

Working Conditions

• Operating Temperature: -10℃ to 50℃;
• Storage Temperature:-30℃ to 50℃
• Relative Humidity: (20 ~ 95)% RH
• Avoid environments that vibrate, have a high magnetic field, are corrosive, or have a lot of dust.

Mitech MFD620C Ultrasonic Flaw Detector feature:

• Measuring range：0 to 6000 mm, at steel velocity
• Resolution Accuracy：Horizontal: +/-0.2% FSW, Vertical: 3% FSH, Amplifier Accuracy
• Communication storage： USB2.0;50 groups of flaw-detecting parameters channels;1000
• Working time： More than 8 hours.
• Main unit weight：1.8KG
• Dimensions：280*220*70mm
• waterproof.
• oil proof.
• dustproof.

Mitech MFD620C Ultrasonic Flaw Detector specifications:

• Display Resolution: (320×240 pixels) multi-color TFT LCD.
• Blind Area: 5MM.
• Flaw Sizing: Automatic flaw sizing using AVG/AVG or DAC, speeds reporting of defect acceptance or rejection.
• Weld Figure Feature: Weld Figure feature can be enabled when detecting the weld parts using an angle transducer.
• Auto-Calibration: Automated calibration of transducer zero offsets and/or material velocity.
• Memory: be able to store, and recall the A-Scan patterns and instrument settings.
• Flaw Locating: Live display Sound-path, Projection (surface distance), Depth, and Amplitude.
• Defect Quantification: directly display the result with db unit.
• Defect characterization: calculate the equivalent size of the flaw easily and quickly to facilitate the judgment of artificia.
• Curved Surface Correction: used to measure the surface distance and depth of defect on a curved surface.
• DAC/AVG: Y
• AWS D1.1: one of the AWS（American Welding Society） standards.
• Crack Height Measuring: measure and display the height of a crack found inside the workpiece.
• Magnify Gate: spreading of the gate range over the entire screen width.
• Video Recording: more than 2 hours.
• A Scan Freeze: Display freeze holds waveform and sound path data.
• Coded Echo Color: locate the flaw position.
• B-Scan: display a graphical cross-section of the workpiece.
• Power-Saving: Method low power consumption.
• Protection Level: IP54
• Communication: Interface High-Speed USB2.0 port.
• DataPro Software: Y
• Working Language: freely switch between Chinese and English.
• Total Weight: 6.0KG
• Measuring Range: (0 ~ 6000) mm in steel.
• Bandwidth: 0.5 to 10MHz automatic matching according to the probe frequency.
• Material Velocity: (1000~ 15000) m / s.
• Dynamic Range: ≥ 36dB
• Vertical Linear Deviation: ≤ 3%
• Horizontal Linear Deviation: ≤ 0.2%
• Resolution: > 40dB (5P14)
• Sensitivity Leavings: 60dB (flat-bottomed deep hole 200mmФ2).
• Rejection: (0 to 80)% Linear without affecting the linearity and gain.
• Noise Level: ≤ 10%
• Probe Type: straight beam probe, angle beam probe, dual element probe, through-transmit probe.
• Gates: Wave-getting Gate, Wave-losing Gate, Single Gate Reading, Dual Gate.
• Alarm: Beep Alarm and LED light Alarm.
• Power Supply: DC 9V
• Working Time: ＞8 hours
• Overall Dimensions: 280 × 220 × 70(mm).
• Operating Temperature: (-10 ~ 50) ℃
• Relative Humidity: (20 ~ 95)% RH
• Pulse Energy: 200V, 300V, 400V, 500V,600V selectable, suitable for various probes.
• Pulse Width: (0.1～0.5)µs range with continuous adjustment to match the different frequency probes.
• Probe Damping: 100Ω、200Ω、400Ω selectable to meet different requirements for resolution and sensitivity.
• Sampling: 10 digits AD Converter at the sampling speed of 160MHz, the waveform of high fidelity.
• Rectification: Positive half wave, negative half wave, full wave, RF.
• Gate Reading: optional for single gate and double gate reading mode, both peak and edge can trigger it.
• Gain: 0 dB to 110 dB adjustable in selectable steps 0.1 dB, 1 dB, 2dB, and 6dB.
• Transducer Connections: BNC or LEMO