Ultrasonic Flaw Detector Leeb 520 / Leeb 521 / Leeb 522
Function & Feature
● Probe automatic calibration.
● DAC and AVG are automatically formed, and can be corrected and compensated.
● Freely switch to four kinds of standards (depth D, level P, distance S, amplitude H).
● Functions such as Auto-gain and peak memory improve detection efficiency.
● Automatically calculate the φ value equivalent defects.
● Automatically display flaw location (Depth d, level p, distance s, amplitude, sz dB, ф).
● Automated calibration of transducer Zero Offset and/or Velocity.
● 13 built-in testing standards are available.
● Storage: 980 pieces of A-scan images and data.
● Power supply: rechargeable Li-ion battery, standby time more than 15 hours.
● The width and intensity of launch pulse are adjustable.
● With the durable shell , oil-proof, water-proof and dust-proof.
● PC software is available for data analysis, management and reports printing.
Application
The Digital UT ultrasonic flaw detector applicable for quickly and accurately detection, positioning, evaluation and diagnosis of various flaws in the work-piece, such as cracks, welds, blowhole, etc. It Widely used in electric power, petrochemical, boiler and pressure vessel, steel, military, aerospace, railway transportation, automobiles, machinery, and other fields.
Principle
The digital UT ultrasonic flaw detector, which can rapidly, easily and accurately inspect, locate, evaluate and diagnose various defects (crack, inclusion and pinhole, etc.) in a workpiece without destruction. It can be used both in a lab and field. The instrument can be widely used in any fields that need defect inspection and quality controlling e.g. manufacturing industry, iron & steel metallurgical industry, metalworking, chemical industry, etc., also be broadly used in the active safety inspection and service-life evaluation in such fields as aerospace, railway transportation and boiler pressure vessels, etc. It is an essential instrument for non-destructive inspection industry.
When the ultrasonic wave propagates in a job, one can detect the defect in it by the influence on the propagation of ultrasonic wave based on the acoustic characteristic demonstrated by the defect in the material. Based on this principle, by using ultrasonic wave one can measure such defects as crack, pinhole and inclusion in such media as metal, non metal and composite, etc.
Technical Specification
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Model |
Leeb 520 |
Leeb 521 |
Leeb 522 |
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Operating Frequency |
0.5MHz～15MHz |
0.5MHz～20MHz |
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Scan Range (mm) |
0-6000mm |
0-10000mm |
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Steps: 2.5, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000, 2000, 3000, 4000, 5000, 6000 |
Steps: 2.5, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000 Adjusting step: 0.1mm (2.5 mm～99.9mm), 1mm (100mm～10000mm) |
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Velocity Range (m/s) |
100～18000 |
100～20000 |
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10 fixed levels: 2260, 2730, 3080, 3230, 4700, 5920, 630012000, 13000, 14000, 15000 Adjusting steps: 1 |
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Vertical linearity error |
≤3% |
≤2% |
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Dynamic Range |
≥32dB |
≥35dB |
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Horizontal linearity error |
≤0.2% |
≤0.1% |
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Testing sensitivity |
≥62dB (Depth 200mm, Φ2 flat bottom hole) |
≥65dB (Depth 200mm, Φ2 flat bottom hole) |
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Measuring channel |
100 |
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Storage |
980 |
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TCG curve |
○ |
● |
● |
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B Scan |
○ |
○ |
● |
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PC Connection |
● |
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Video |
○ |
○ |
● |
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Gain Range (dB) |
0~120 |
0~130 |
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Adjusting step: 0.0, 0.1, 0.5, 1, 2, 6, 12 |
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Standard Probes |
Straight probe: 2.5MHz, diameter 20mm, cable Q9-Q9 Angle probe: 4MHz, 60 degree, 8*9 mm, cable Q9-C5 |
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Dimension |
240×160×40mm |
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Weight |
1.2kg |
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Standard Delivery |
Main Unit, Straight probe, Angle probe, Power adapter, BNC cables, PC software, Manual, Certificate, Warranty card |
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Optional Accessories |
Optional probes, Cables, Calibration blocks, Coupling agent |
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