Key points for using EUT-101C digital ultrasonic flaw detector

The EUT-101C portable digital ultrasonic flaw detector not only has the characteristics of other instruments, but also gathers the necessary high performance and multiple functions of the instrument. At the same time, it puts great effort into stability, reliability, and anti-interference, making it safe to operate even in harsh environments for a long time. The close integration of our proprietary intellectual property software and high-performance hardware, coupled with innovative pop-up menu operations, makes the entire instrument more perfect.

Key points for using digital ultrasonic flaw detectorFunction information:

•It has a relatively high emission pulse amplitude (Up ≥ 600V) and a sufficiently steep leading edge rise time (tr ≤ 15ns), and also has a very low effective output impedance (i.e. its load capacity is quite strong), which can effectively excite high-low frequency probes of various chip sizes to achieve high sensitivity and high resolution flaw detection
• It has outstanding advantages such as high input impedance, wide bandwidth (with both hardware narrowband and broadband), high signal-to-noise ratio, and high fidelity transmission of echoes. It can be used for high-sensitivity testing of large forgings, as well as high-resolution testing of aircraft and automotive components
A 15m "detection range" allows for easy observation of shaft end echoes of a 600000 kW rotor
The various measurement functions of the gate make it possible to locate defects; The 'bottom wave attenuation' function of the D gate provides a quantitative concept for bottom wave monitoring; The "waveform broadening" of the b/c gate provides conditions for observing and analyzing the details of the echo, and thus determining the nature of the defect
The specially equipped playback function can record/store the dynamic waveform of the flaw detection for a long time, providing convenience for archiving the flaw detection process, expert analysis, and remote diagnosis
B-scan imaging and A/B-scan display functions on the same screen, which can achieve defect imaging and reserve sufficient information for further data processing
The stability and reliability of long-term operation are the primary conditions for large forging flaw detectors. This instrument has strict control over temperature drift and long-term operation drift
The high-performance transmission system can effectively excite the 10-20MHz high-frequency narrow pulse probe and obtain echo pulses with sufficiently high amplitude and relatively few ringing periods
The 0.5-20MHz broadband receiving system can amplify and transmit the high-frequency narrow pulse probe's echo pulse with high fidelity to the digital circuit for further processing; In addition, the 3-20Hz low-frequency suppression broadband range of this instrument is beneficial for improving near-field resolution, providing instrument support for clear resolution of 2.5mm diameter flat bottomed holes on the near surface
The use of high-frequency narrow pulse probes provides instrument conditions for achieving high near-field/far-field resolution, making it particularly suitable for situations where shallow or small defects need to be discovered
Equipped with crawlers or mechanical scanning devices for automatic or semi-automatic inspection
The instrument adopts a human-machine dialogue interface, which is clear and easy to understand, easy to operate, and has hotkey help prompts
Random matching computer software can perform functions such as imaging of stored records, playback, analysis, or printing of generated reports
Ultrasonic testing parameters, graphics, and files can be stored in the instrument's 4G memory and accessed at any time
• Scanning data can be transmitted to desktop computers or similar instruments through network or USB ports, and then computer imaging analysis software can be used to achieve computerized management of the results of the flaw detection process
The rapid development of computer technology has further improved the signal processing speed of instruments. Compared with the original instruments, the detection frequency range is wider, the probe compatibility is better, the storage capacity is larger, the intelligence level is higher, and the interface design is more reasonable

Technical Specifications:

Size and weight:
Size: 250 * 170 * 85mm Weight: 2.5kg
Power supply: external adapter (DC 18V), built-in lithium battery (14.8V 6.3AH)
Work environment:
Working temperature: -20 ℃~+55 ℃
Storage temperature: -20 ℃~+50 ℃
Relative humidity: not exceeding 85%

Ultrasonic testing:
1. Pulse emission: Sharp pulse amplitude ≥ 600V, rise time ≤ 15ns
2. Damping: high/medium/low/narrow pulse four levels
3. Repetition frequency: 5Hz~10KHz, adjustable in multiple levels of 5/10/25/50/100/200/500Hz/1K/2K/5K/10KHz
4. Detection range: 3-10000mm (steel longitudinal wave), continuously adjustable, small display range of 3mm
5. Pulse displacement: -10~1000mm (steel longitudinal wave)
6. Probe zero point: 0-100 μ s
7. Material sound speed: 1000-99999m/s
8. Frequency range: 0.5-20MHz, standard type is divided into three levels: 1-6/0.5-15/3-20MHz
9. Gain: 0-110dB, divided into 0.5/2/6dB steps
10. Vertical linear error: ≤ 3%
11. Horizontal linear error: ≤ 2%
12. Sensitivity margin for flaw detection: ≥ 65dB
13. Far field resolution: ≥ 28dB
14. Inhibition: 0-80%, linear inhibition
15. Gates: Four independent alarm gates, a/b/c/d, each with incoming/lost wave alarm function. Gate a can be set as a tracking gate; B/C gate can expand echo; D gate also has bottom wave attenuation function
16. Measurement point selection: leading edge or peak value
17. DAC curve: capable of recording up to 10 echo reference points, can change the distance between the three lines of the DAC, and can correct the echo reference points
18. Storage: 1GB of memory can store 1000 sets of data and instrument parameters, with 1-hour full waveform playback and automatic storage function
19. Interface: USB, Ethernet port, encoding disk interface
20. Detection method: positive negative bidirectional RF
21. Other functions: This instrument also has various functions such as probe echo frequency measurement, automatic amplitude, material sound velocity and probe zero point automatic correction, probe refraction angle automatic measurement, echo extension, echo envelope, echo evaluation and measurement result highlighting, dynamic waveform playback, and on-site anti-interference.

Key points for using digital ultrasonic flaw detectorApplication fields:

Suitable for inspection of locomotive depots, vehicles, passenger cars, engineering, vehicle freight cars, ultrasonic testing of large castings and forgings in power stations, inspection of medium and thick plate welds, inspection of coarse-grained materials such as austenitic welds, high-speed inspection of thin-walled pipes, inspection of automotive parts, and quality inspection of multi-layer composite material bonding with a total thickness of 1-2mm