5m 10m Digital Sniffer for Helium Leak Detector

Introduction of Digtial Sniffer

The digital sniffer, also known as a quantitative sniffer or sniffing probe, is used for close-range, quantitative detection of minute helium leaks on workpiece surfaces. Its gun body is typically constructed from engineering plastics and metal, with a length ranging from 2.5 to 10 meters. Its core function is to draw in leaking helium and display the concentration reading in real time, enabling precise localization and leakage rate estimation.

Function of Digtial Sniffer

The digital sniffer gun is the core tool for the "sniffing method" of leak detection. Its functionality far exceeds that of ordinary mechanical sniffers, with the key advantage lying in the quantitative capability provided by its digital display.
Precise Leak Localization:
The operator holds the sniffer gun and moves its tip slowly 1-2mm above the surface of the workpiece. When passing a leak point, escaping helium is drawn into the gun.
The instrument screen displays the helium concentration reading in real time. A sudden increase in the reading indicates the presence of a leak point directly below or near the tip, enabling millimeter-level precise localization.
Quantitative or Semi-Quantitative Measurement:
This is the fundamental difference between digital and ordinary sniffers. It not only "finds" leaks but also estimates the leak rate by measuring peak concentration readings.
Through calibration with a "standard leak" performed simultaneously on the tested workpiece, a correlation between concentration readings and actual leak rates can be established. This allows for semi-quantitative assessment of unknown leak rates, providing data support for quality decisions.
Avoiding Helium Contamination and Interference:
Unlike the "spray method," the sniffing method is a passive sampling technique that does not introduce additional helium into the system. This prevents helium accumulation in the detection area, which could elevate background levels and affect subsequent tests or the inspection of other components.
Suitability for Pressure Vessels and Complex Systems:
For pressure vessels already filled with helium or helium mixtures, the sniffing method is the only effective way to detect external leaks. It is well-suited for rapid, non-destructive leak screening of systems such as air conditioning units, automotive fuel tanks, and engine components on production lines or in the field.

Anhui Wanyi Science and Technology Cooperated Limited Company founded in 2003, is a professional manufacturer and supplier of analytical instruments with an international vision and operational standards, whose leading products cover chromatography, spectroscopy, mass spectrometry and varieties of industrial applications such as environment monitoring, leak detection, industrial intelligence, industrial process, medical devices. The total number of employees is more than 1400, including 500 research and development engineers with 20 post doctors and 200 masters.

Wayeal has set up a world-class product research and development platform as per international standards, to form a globally synchronized research and development system on the basis of high quality, strict norms, and continuous creation. We were granted "Postdoctoral Research Station" in January 2012, and awarded "National Grade Technology R&D Center" in 2021.

With adherence to the concept of "Perfect Products", Wayeal has integrated the world's leading manufacturing resources, globalized parts procurement, and socialized manufacturing, to offer internationally assured quality products to the customers.

Wayeal has also conducted management and operation under an international perspective, and raised profound changes in integrated product development, integrated supply chain, human resource management, financial management and quality control, and established an IT-based management system actively adapted to international competitions.

Under the spirit of "Quality Wayeal, Service Wayeal", Wayeal is committed to building an enterprise with strong international competitiveness in the field of analytical instruments, industrial applications, and life health, and becoming a model of a responsible and respectable Chinese enterprise.