According to an anonymous customer of Huntingdon Fusion Techniques (HFT®), “More and more in our experience, we are finding inferior argon (Ar) that isn’t what it says on the bottle.”

As such, the weld purging equipment specialist has highlighted the role that its PurgEye® 100 Weld Purge Monitor® can play in monitoring the quality of the gas during welding processes.

The client continued, “Often, customers blame other equipment such as their purging systems or monitors for getting bad heat tint, when in actual fact it could well be their source gas quality.”

“This issue can be solved quickly by simply connecting the PurgEye 100 directly to the regulator on the Ar cylinder before welding or purging and measuring the ppm level.”

Purg eye 100 weld purging monitor

PurgEye® 100 Weld Purging Monitor®


The UK-based company’s monitor can measure the quality of Ar gas being used during the welding process by measuring from atmospheric level (20.94%) down to 100 parts per million (ppm).

The device comes complete with leak-tight push buttons, auto calibration features, vacuum-sealed probe assembly and other user accessories.

The instrument also features a 24mm high-display LCD screen with a sleep mode function which activates automatically to conserve battery life when not in use, as well as a low sensor indicator to inform the operator as to when a new sensor is required. HFT has incorporated an extra-long life sensor into the monitor, providing approximately 18 months of life.