WAYEAL Helium Mass Spectrometer Leak Detector – High-Precision Differential Pressure Leak Tester

Overview

The WAYEAL Helium Mass Spectrometer Leak Detector is a high-precision, laboratory- and production-grade leak detection system engineered for quantitative, trace-level helium-based leak measurement in pressurized or evacuated components. Unlike conventional pressure decay or flow-based testers, this instrument integrates a quadrupole mass spectrometer with a dedicated helium ionization source and ultra-high vacuum (UHV) pumping architecture—enabling detection sensitivity down to 5 × 10⁻¹² mbar·L/s (typical), compliant with ISO 20484 and ASTM E493 standards for helium leak testing. It operates on the principle of mass-selective ion detection: helium atoms introduced into a test specimen are drawn into the spectrometer’s analyzer chamber, ionized via electron impact, separated by mass-to-charge ratio (m/z = 4), and quantified using a Faraday cup or secondary electron multiplier. This method delivers superior specificity, immunity to background gas interference, and long-term measurement stability—critical for validating hermeticity in semiconductor packaging, medical device housings, vacuum vessel welds, and aerospace fluid systems.

Key Features

• Integrated quadrupole mass spectrometer with helium-specific tuning and automatic gain optimization for consistent signal-to-noise performance across operational ranges.
• Dual-mode test configuration support: differential pressure (ΔP) mode for comparative leak rate assessment between test and reference parts, and absolute pressure decay mode for single-part evaluation under controlled temperature and humidity conditions.
• Modular vacuum architecture featuring a primary dry scroll pump and secondary turbomolecular pump, achieving base pressures <1 × 10⁻⁷ mbar within <60 seconds.
• Real-time leak rate calculation with auto-compensated thermal drift correction and barometric pressure normalization per ISO 12207.
• IP65-rated front panel with tactile membrane keys, high-brightness OLED display, and intuitive menu navigation optimized for glove-compatible operation in cleanroom or industrial environments.
• Robust mechanical design with stainless-steel gas pathways, electropolished internal surfaces, and helium-permeation-resistant seals meeting USP Class VI and ISO 10993-1 biocompatibility requirements.

Sample Compatibility & Compliance

The detector accommodates a broad range of sample geometries—from microfluidic chips (<5 mL volume) to large-volume pressure vessels (up to 500 L)—via configurable test port adapters (NPT, VCR, KF40, CF63). It supports both vacuum-side (sniffer probe) and pressure-side (accumulation) helium introduction methods. All firmware and calibration protocols adhere to GLP/GMP documentation frameworks, with full audit trail logging enabled for FDA 21 CFR Part 11 compliance when paired with optional secure user authentication and electronic signature modules. Test reports include timestamped metadata, operator ID, environmental conditions (temperature, ambient pressure), and raw spectral data export in .csv and .tdms formats.

Software & Data Management

The embedded Windows Embedded OS runs WAYEAL LeakSuite™ v3.2—a validated application supporting method creation, multi-step test sequences (e.g., pre-evacuation, helium injection, stabilization, measurement), and statistical process control (SPC) charting. Data export conforms to ASTM E1447 and ISO/IEC 17025 reporting templates. Remote monitoring is enabled via Ethernet (TCP/IP) or optional Wi-Fi module; integration with MES/SCADA systems is supported through OPC UA and Modbus TCP protocols. Calibration certificates—including sensitivity verification, background noise characterization, and linearity validation—are traceable to NIM (National Institute of Metrology, China) and include uncertainty budgets per GUM (JCGM 100:2008).

Applications

• Hermeticity validation of implantable medical devices (pacemakers, neurostimulators) per ISO 11607-2 and AAMI TIR17.
• Leak integrity testing of lithium-ion battery enclosures and fuel cell stacks under simulated thermal cycling conditions.
• Quality assurance of vacuum insulation panels (VIPs), MEMS sensors, and optical cavity assemblies in photonics manufacturing.
• Weld seam inspection for cryogenic piping, nuclear coolant loops, and semiconductor process chambers.
• R&D-stage evaluation of novel sealing materials, adhesive bonds, and micro-weld joints using programmable ramp-and-hold pressure profiles.

FAQ

What helium purity is required for optimal detection sensitivity?

Helium gas with ≥99.999% purity (Grade 5.0) is recommended to minimize background nitrogen and argon interference in the mass spectrum.
Can the system be calibrated in-house without external service?

Yes—integrated calibration routines support user-executed sensitivity verification using certified leak standards (e.g., 1 × 10⁻⁹ mbar·L/s stainless-steel orifice leaks), with full traceability to factory calibration records.
Is the instrument suitable for continuous 24/7 operation in production lines?

Designed for industrial duty cycles, it features redundant cooling fans, thermal shutdown protection, and mean time between failures (MTBF) >15,000 hours under nominal operating conditions.
Does the system meet international electromagnetic compatibility (EMC) requirements?

Yes—it complies with IEC 61326-1 (industrial environment) and EN 55011 Class B emission limits, with CE and RoHS declarations available upon request.
How is data integrity ensured during power interruption?

Non-volatile flash memory retains all active test logs, calibration history, and configuration settings; unsaved measurements are automatically cached and recovered post-reboot.