HFT® Purge Monitor for Welding Stainless Steel

13 July 2021

Inert gas welding requires the removal of oxygen from the welding zone before, during and after welding. This is known as weld purging as is crucial during the welding of stainless steel. 

The low cost, hand held PurgEye® 100, designed and developed by Huntingdon Fusion Techniques HFT® is perfect for welding stainless steel, reading accurately from atmospheric oxygen level (20.94%), right down to 100 ppm (0.01%) of oxygen. 

Ron Sewell, Chairman for HFT® said: “The PurgEye® 100 Weld Purge Monitor® delivers an extremely accurate measurement of 0.01% or 100 ppm, which is the right amount to ensure welds remain free from oxidation.” 

The PurgEye® 100 is IP65 rated and comes with leak-tight push buttons, auto calibration features, vacuum-sealed leak-tight probe assembly, wrist/neck strap and tripod mount. 

With a clear, easy to read LCD screen, the PurgEye® 100 boasts a 24 mm high display with features such as a low battery icon as well as the low sensor icon. When the monitor is not in use, an automatic sleep mode activates to conserve battery life. 

The Weld Purge Monitor® was invented by HFT® in the 1970’s and with over 45 years of innovation, design and manufacturing experience, the company now has a Family of PurgEye® Weld Purge Monitors® to measure oxygen levels from atmospheric content (20.94%) down to 1 ppm (accurate to 10 ppm). 

Courtesy of Huntingdon Fusion Techniques HFT®.