Weld Purge Monitors

Weld Purge Monitors are essential instruments when welding reactive metals such as stainless steel, titanium, zirconium and nickel alloys.

In the 1970s, Huntingdon Fusion Techniques HFT® developed the first of a new line of instruments, which led to the birth of the Weld Purge Monitors.

Early in 2013, after nearly 40 years of updating designs and continuous manufacturing of the Weld Purge Monitor®, the European Economic Community awarded HFT® with the Registration Document, giving the company ownership of the term and name Weld Purge Monitor®.

weld purge monitors

The only innovators, designers and developers of a complete range of Weld Purging Products, Huntingdon Fusion Techniques® has developed seven different models of the original MKI, resulting in today’s advanced version known as the PurgEye® 100 IP65.

In 2017, HFT® overhauled their range of Weld Purge Monitors to read down to very low oxygen levels. Most of the current monitors are accurate to 10 parts per million (ppm).

An overview of the latest Weld Purge Monitor® range:

PurgEye® 100 IP65, low cost, dustproof and waterproof hand held unit for reading down to 100 ppm.

PurgEye® 200 with PurgeNet™ is our hand held, rechargeable battery driven Weld Purge Monitor® for reading very accurately down to 10 ppm complete with electromechanical sampling pump.

PurgEye® 300 Nano, the worlds first and only super low cost, entry level, mains power driven Weld Purge Monitor® measuring accurately down to 10 ppm.

PurgEye® 500 Desk with PurgeNet™ uses an internal electromechanical pump to draw the gas across the sensor. It also has the switching capabilities and the PurgeLog™ Software.

PurgEye® 600 a computerised, touch screen model measuring very accurately from atmospheric level down to 10 ppm, with high and low oxygen level switching capabilities, data capture via USB using PurgeLog™ software for recording purging results for subsequent evaluation and provision of a quality control document.

PurgEye® 1000 monitor with PurgeNet™ has been developed for those instances where the measuring point is more than 20 metres away from the monitor. The slow time for the gas to travel and reach the sensor and the contamination of actual reading that can take place inside the gas tube, leads to serious delays and erratic readings.

PurgEye® 1500 Site with PurgeNet™, designed and manufactured in a robust, virtually non-destructible case, perfect for dusty, hazardous, on-site conditions, measuring oxygen levels from 1,000 ppm down to 10 ppm. IP68 rated with the lid closed.

What is PurgeNet™? 

PurgeNet™ controls the welding power sources such as orbital welders and any other automatic welding systems to switch on and off according to oxygen levels. PurgeNet™ can be used with PurgeLog™ software to transfer weld purge data for quality control of welds. PurgeNet™ connects to other smart accessories for weld purging, including the Traffic Light System, which gives a visual warning during welding in case of rising of falling oxygen levels.

Ron Sewell, Chairman for HFT® said: “All of Huntingdon Fusion Techniques HFT®’s Weld Purge Monitors® are manufactured in the UK. We do not sacrifice on quality. We guarantee to help you achieve zero colour welds, time and time again.”

weld purge monitors

View the Range of Weld Purge Monitors.  

If you would like additional information on this topic, or if you'd like To Understand Weld Purging & to Obtain Clean Weld Roots, contact Huntingdon Fusion Techniques, We'll Provide the Answers

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One Comment

  1. Jerry Marshall September 2, 2019 Reply

    If you are welding Titanium, stainless, chrome, high strength steels, you must know your precise oxygen level at the place of welding to avoid porosity and oxidation that could lead to weld failure in service.

    The simplest low cost monitor can help in many ways but for critical welds all of the other HFT monitors will measure down to 10 ppm of oxygen.

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