Helium Mass Spectrometer Leak Detector

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Cat	Products Name	Key Features	Price
VLDE-HMSLD-041	Helium Mass Spectrometer Leak Detector 626x518x310mm 25mbar	Max Inlet: 25mbar; High Tolerance; Robust Pump
VLDE-HMSLD-042	Helium Mass Spectrometer Leak Detector 626x518x310mm Warm3min	Warm Up: 3min; Fast Start; Low Downtime

Helium Mass Spectrometer Leak Detectors Overview

Engineered for absolute precision, our helium mass spectrometer leak detectors represent the pinnacle of vacuum integrity testing. Utilizing the rigorous principle of magnetic sector mass spectrometry, these systems isolate and quantify helium tracer gas ions with unparalleled sensitivity, ensuring uncompromising hermeticity in ultra-high vacuum (UHV) components and complex industrial assemblies.

The core analytical architecture integrates a specialized dual-filament ion source and a 180-degree magnetic deflection analyzer, inherently suppressing background interference. This configuration delivers rapid signal processing and extraordinary signal-to-noise ratios, facilitating quantitative leak rate measurements down to extreme sub-micron thresholds.

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Discuss your specific sensitivity requirements and system throughput constraints with our senior vacuum specialists.

Global technical support available within 24 hours.

Core Physical Principles & Analytical Capabilities

Magnetic Deflection Separation

Helium tracer gas entering the spectrometer tube is ionized by a robust electron emission filament. Accelerated via a high-voltage potential into a perpendicular magnetic field, the Lorentz force dictates their trajectory. The 180-degree deflection precisely isolates He+ ions based on their specific mass-to-charge ratio (m/z = 4), physically separating them from residual atmospheric gases.

Current-to-Voltage Amplification

Upon striking the collector electrode, targeted helium ions generate a microscopic current strictly proportional to the partial pressure of helium. A solid-state electrometer circuit integrates high-gain transimpedance amplification to convert this femtoampere-level ion current into a robust, noise-filtered voltage signal, yielding highly linear leak rate quantifications.

Dynamic Background Suppression

To counteract helium permeation and residual background accumulation, the system leverages multi-stage differential pumping architectures combined with real-time algorithmic zeroing. This maintains a strictly stable analytical baseline, preventing sensor saturation and extending operational continuity even in environments saturated with elevated ambient helium.

The Advantages of AIMRSE

Engineered for uncompromised precision and industrial reliability.

Ultra-High Sensitivity

Detects leaks down to 5x10⁻¹³ Pa·m³/s, ensuring absolute hermeticity for critical UHV systems.

Fast Rapid Response

Advanced vacuum pumping logic provides signal response times of less than 0.5 seconds.

Robust Resistance

Dual-filament ion source and dynamic background suppression ensure stable operation.

Easy Integration

Supports comprehensive I/O interfaces (RS232/485) for seamless automated production line testing.

Standards & Metrology Compliance

The metrological integrity of our helium mass spectrometer leak detectors is strictly governed by authoritative global industrial standards. Calibration protocols are executed in full accordance with ISO 20486 (Non-destructive testing — Leak testing — Calibration of reference leaks for gases). Equipment architecture complies seamlessly with EN 1330-8 and ASME BPVC Section V Article 10. The baseline sensitivities and minimum detectable leak rates are intrinsically verified against NIST Traceable standard helium leaks, guaranteeing unimpeachable data fidelity for critical semiconductor, aerospace, and nuclear engineering applications.

Technical FAQ

What is the minimum detectable leak rate and response time of your helium leak detectors?

Our helium mass spectrometer leak detectors deliver an ultra-high sensitivity with a minimum detectable leak rate of less than 5E-13 Pa·m³/s and a signal response time of under 0.5 seconds. This precision is driven by a 180° magnetic deflection analyzer that isolates tracer gas ions based on their specific mass-to-charge ratio.

What international metrology and calibration standards do your leak detectors comply with?

The metrological integrity of our equipment is governed by authoritative global standards. Architecture and calibration protocols comply with ISO 20486, EN 1330-8, ASME BPVC Section V Article 10, and ASTM E498/E498M. Sensitivities are intrinsically verified against NIST Traceable standard leaks.

What are the primary industry applications for this helium leak testing equipment?

Our helium leak detectors are engineered for high-precision components across various sectors, including Semiconductor Manufacturing, Aerospace & Defense, Medical Devices, Automotive Industry, and Ultra-High Vacuum (UHV) equipment testing.

Note: Our vacuum equipment is for research and industrial testing only. Industrial-grade components are fully rated for field deployment.

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