Your browser is not supported

You are using a browser we do not support any longer. To continue visiting our website, please choose one of the following supported browsers.

Leak Detection


Efficient and reliable performance

Edwards ELD500 precision leak detector: your perfect partner

Designed for fast and accurate leak detection in a wide range of applications and fully mobile with an easy to use control interface. 

ELD500 Precision Leak Detector

Edwards ELD500 precision leak detector

ELD500 leak detector

With three variants in the range: ELD500, ELD500 FLEX and ELD500 DRY, plus an extensive catalogue of accessories, the versatile ELD500 leak detector is ideal across all applications.

At the push of a button the ELD500 can easily be set to work in either vacuum mode for precise measurement of leak rate or sniffer mode for identifying leak location.

ELD500 Key features and product overview

Dave Steele gives an overview of Edwards ELD500 leak detector highlighting the key features


ELD500 Start up, configuration and accessories

Dave Steele demonstrates how to power up your Edwards ELD500 WET, DRY or FLEX helium leak detector using standard accessories and prepare it for use.


ELD500: Testing the leak integrity using a helium spray gun

Dave Steele demonstrates how to check the leak integrity of a test part under vacuum using a spray gun on a leak tight fitting with the Edwards ELD500 leak detector.


ELD500 Using in atmospheric sniffer mode

Dave Steele demonstrates how to use the Edwards ELD500 leak detector in atmospheric sniffer mode.

Customisable for any application

all models feature a rugged turbomolecular pump optimised for the rigours of portable leak detection

Ready to go mobile solution

truly ready to go in under two minutes from power on

High stability and accuracy

excellent repeatable accuracy is achieved through calibration with the intelligent test leak source and high quality mass spectrometer

Low cost of ownership

Analytical instruments

  • Electron microscopy
  • Leak detection
  • Mass spectrometry
  • Surface analysis

Research and development

  • Space simulation
  • Cryogenic research
  • Nanotechnology
  • Coating systems


  • Load lock
  • Transfer
  • Metrology
  • Lithography
  • PVD (physical vapour deposition)
  • Plasma etching
  • Implant source
  • CVD (chemical vapour deposition)
  • Flat panel display
  • LED


  • Industrial leak detection
  • Electron beam welding
  • Lamp and tube manufacturing
  • Glass coating
  • Brake line and air conditioning
  • Refrigeration system manufacturers
  • Heat treatment
  • Power
  • Vacuum furnaces

High energy physics

  • Beam lines
  • Accelerators
  • Fusion
  • Laser evacuation