Inert gas welding requires the elimination of oxygen from the weld zone during the welding of reactive metals including stainless steel.
Before the welding process begins, the oxygen level must be reduced to a required minimum, which is less than 100 ppm when welding stainless steel.
The low cost, hand held, battery operated PurgEye® 100, designed and developed by Huntingdon Fusion Techniques HFT® is perfect for obtaining zero colour, oxide free welds in stainless steel, reading accurately from atmospheric oxygen level (20.94%), right down to 100 ppm (0.01%).
The PurgEye® 100 is IP65 rated and comes with long life sensor, leak-tight push buttons, auto calibration and a vacuum-sealed leak-tight probe assembly. The monitor has a clear, easy to read LCD screen 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 1970s and with over 40 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).
Ron Sewell, Chairman for HFT® said: “All of Huntingdon Fusion Techniques HFT®’s Weld Purge Monitors® and Inflatable Tube, Pipe and Pipeline Weld Purging Systems are manufactured in the UK. We do not sacrifice on quality. We guarantee to help you achieve zero colour welds, time and time again.”
It is important not to use alternative low cost oxygen analyzers or other oxygen safety monitors as they are calibrated under ambient conditions and therefore unsuitable for measuring purge levels down to 0.01% as the PurgEye® 100 does.
Read our White Paper 269 Part 1: Shielding Gas and Purging Techniques https://www.huntingdonfusion.com/index.php/en/technical-support/white-papers-40017/3039-wp-269-shielding-gas-and-purging-techniques-during-welding