LACO Technologies
A more specific description would be: "Helium leak test using outboard (out-leakage) vacuum test method with the part pressurized to 90 psia helium. The leak rate shall not exceed 1.0 x 10-7 atmcc/sec He." ... • How fast is the method and is the test speed dependent on part size? • How is the capability of the test method affected ...
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Accuracy in Helium Leak Testing | Agilent
Typical tests are between 10 -4 to 10 –9 mbar·L/s, well above the leak detector baseline sensitivity and signal-to-noise ratio. Some users require high sensitivity testing and want to read a leak value as accurately as possible. For applications at 10 –10 mbar·L/s or below, it is essential to understand the factors that affect the ...
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Varian 979 Helium Leak Detector | HVS
The Varian 979 Helium Mass Spectrometer Leak Detector is a portable wide range leak detector. It is comprised of a turbomolecular high vacuum pump, spectrometer tube, valve block, leak detector electronics and an operator interface in a rugged housing. It can be used in sniff testing mode and evacuation mode with both standard and high sensitivity. […]
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Managing the Background Signal in Helium Leak …
Note: Particular attention should be paid to helium pumping speed. Pumping performance for helium varies substantially, depending on operating pressure and type of pump. If the leak detector is displaying a leak rate of 2.0 × 10–8 mbar × L/sec, the test pressure in the leak detector is 0.001 mbar, and the helium pumping speed of the leak
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TITAN VERSA C Helium Leak Detector
Part Number: TVC-XX1-1. The TITAN VERSA C (Compact) with external, user-supplied pump, is an incredibly powerful and versatile helium leak detector based on an innovative and proven core technology. It is lightweight, mobile, and flexible. It is most commonly mounted on a maintenance cart or integrated into a production leak test system.
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Helium Leak Testing Pressurized Components …
If the helium is not distributed uniformly, the increase in concentration will be lower. As an example, a part leaking pure helium at a rate of 1 × 10–5 atm cc/sec into an enclosed …
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The Basics of a Hard Vacuum Helium Leak Test
VES have manufactured helium leak detection systems for the world's largest manufacturers for over 25 years, and are more than happy to impart a little knowledge. ... Typical vacuum pumping systems seen on helium leak detection systems lose speed at lower pressures so it is very important to ensure you have an appropriate response time …
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How is helium sniffer technology used in leak …
Using sniffer processes it is possible, virtually independent of the type of gas, to detect leak rates of about 10 ‑7 mbar · l/s. The limitation of sensitivity in the detection …
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PHOENIX Magno Leak Detector | HVS
The Leybold Phoenix Magno is a portable but powerful helium leak detector that delivers high helium sensitivity and fast pump speed. It's lowest detectable leak rate for helium is 5 x 10-¹² mbar l/s. And it's lowest detectable leak rate for hydrogen is 1 x 10-8 mbar l/s. It is available with an oil-sealed or dry backing pump.
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Managing the Background Signal in Helium Leak …
Technical Overview. Managing the Background Signal in Helium Leak Detection. Abstract. One of the distinct advantages of using helium as a trace gas in leak detection is its …
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Helium Leak Detector Rental | Vacuum & Pressure Tests
Pfeiffer Vacuum Pfeiffer Mass Spectrometer ASM-340I Helium Leak Detector. Pfeiffer ASM 340I Helium Leak Detector has a rotary vane pump with 15m3/h backing pump capacity while operating at a 2.5 l/s helium pumping speed and 200/240 V voltage.
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All You Need to Know About Helium Leak Detection
The leak test limit may be set at a level of 1 x 10-10 mbar L/sec, which enables unique comparisons across components, materials, formats, and manufacturing characteristics using a high-speed vacuum approach; …
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Leak Checking Large Vacuum Chambers
depends on the helium pumping speed of the vacuum pumps on the chamber. Sensitivity Sensitivity, defined as the ability of the helium leak detector to identify the smallest possible vacuum leak, can be a challenge when leak checking large vacuum systems. Maximum sensitivity is achieved when 100 % of the helium entering the vessel (though the leak)
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Guide to Helium Leak Testing
There are 2 basic techniques; high vacuum testing which allows leak test thresholds to be set down as low as 1×10 -12 mbar.l.sec -1, or sniffing …
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Helium Leak Detection | Agilent
Typically, helium pumping speed increases as pressure decreases. However, this means that some detectors won't achieve their stated performance, since many leak detection applications are performed at …
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UL1000 | INFICON
Speed, Sensitivity and Reliability for Demanding Leak Detection Applications. The INFICON UL1000 Mobile Helium Leak Detector is designed to meet the most demanding industrial leak detection applications. Providing fast, accurate and repeatable test results, testing flexibility, and high sensitivity in a low maintenance design, the UL1000 is ...
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Pfeiffer Adixen ASM Series Helium Leak Detectors
Pfeiffer Adixen ASM 310 Small footprint Helium Leak Detector, Portable Model, With 1.7 m³/h Internal Dry Diaphragm Backing PumpPfeiffer Adixen Part Number BSAA0000MM9A These Pfeiffer ASM 310 helium leak detectors have a built-in internal dry diaphragm backing pump, pumping speed 1.7 m³/h, are fully automatic, ultra compact, and light in …
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Helium leak detetctor UL1000
The UL1000 is optimized to provide quick, accurate results in any application from the leak checking of large vessels and systems to high-cycle, repetitive component testing - 24 hours / 7 days a week - in the toughest industrial environments. With the addition of the TC1000 Test Chamber accessory, the UL1000 Helium Leak Detector provides easy ...
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Helium Leak Detector UL5000
Defining Speed and Accuracy in Leak Detection. The INFICON UL5000 Helium Leak Detector is designed to meet the most critical and demanding leak detection applications. Featuring INFICON proprietary software algorithms I-CAL and Hydro-S in a field-proven vacuum design, the UL5000 provides testing flexibility, high sensitivity and quick …
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Dry Benchtop Helium Leak Detector, HLD BD15, Quiet Lab
HLD BD15 Bench Dry Helium Leak Detector. The Agilent HLD BD15 bench dry leak detector uses a mass spectrometer tuned to detect helium, which is used as a tracer gas to locate and/or measure very small leaks in enclosed devices or systems. The HLD BD15 is both a precise instrument and a robust workhorse, featuring an easy-to-use touch screen ...
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All You Need to Know About Helium Leak Detection
The leak test limit may be set at a level of 1 x 10-10 mbar L/sec, which enables unique comparisons across components, materials, formats, and manufacturing characteristics using a high-speed vacuum approach. …
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Helium leak detector improved sensitivity speed choke
@article{osti_5482044, title = {Helium leak detector improved sensitivity speed choke}, author = {Juravic, F}, abstractNote = {To achieve the best of steady sensitivity of a leak detector and the best of opening the valve for quick clean up, a gate valve was installed with a predetermined hole drilled in the seat plate and positioned between a diffusion pump …
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Leak Detector [HELIOT 900 Series]
Flow and permeation rate measurement of helium and hydrogen. Features Applications The HELIOT900 is our helium leak detector with; high speed pumping capability, user-friendly operation and guaranteed top performance in all kinds of leak testing situations. 21 23 Sniffer unit Cart, Case ⑦ Oil mist trap Controller optional accessories
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Portable leak detector
The ASM 310 helium leak detector has a wide measuring range capability. It can detect a leak as large as 10-2 mbar l/s down to a leak as small as 3x10-11 mbar l/s. A leak of 10-2 mbar l/s is equivalent to a bubble of 1 cc escaping a part every 100 seconds. A leak of 3x10-11 mbar l/s corresponds to a bubble of 1 cc escaping a part every 1,050 years.
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ASM 340
ASM 340 Best-in-class leak detectors for fast, accurate and high reliability testing Fastest test time in its class Your added value Capable for both vacuum and sniffing tests Top performance in vacuum and sniffing leak detection The ASM 340 guarantees top performance in vacuum and sniffing leak detection for various industries, from …
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Solved There is almost no helium in ordinary air, so helium
There is almost no helium in ordinary air, so helium sprayed near a leak in a vacuum system will enter the system and quickly show up in the output of a vacuum pump connected to such a system. You are designing a leak detector that uses a mass spectrometer to detect helium ions (charge + e = 1. 6 x 1 0-1 9 C, mass m = 6. 6 5 x …
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Helium Leak Detectors: Ensuring Leak-Free Applications
Helium leak detector is an instrument that uses helium as a tracer gas to determine whether there are defects in sealing by detecting leaked helium. ... Significantly improves helium sensing speed ...
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Successful Helium Leak Testing: 10 Rules to …
Minimize "dead" volume and surface area for hard vacuum testing to increase performance in all aspects. Avoid conductance constraints for hard vacuum testing—it may decrease cycle times and …
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What Is Helium Leak Detection | HVS
MS 50 High Speed Production Console Helium Leak Detector; MS 60 Portable Helium Leak Detector; MD-490S Portable Dry Helium Leak Detector w/ Sniffer; Inficon. ... or within the detector itself for smaller …
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Dry Helium Leak Detector UL5000
Defining Speed and Accuracy in Leak Detection. The INFICON UL5000 Helium Leak Detector is designed to meet the most critical and demanding leak detection applications. Featuring INFICON proprietary software algorithms I-CAL and Hydro-S in a field-proven vacuum design, the UL5000 provides testing flexibility, high sensitivity and quick …
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