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Argweld® Purge Monitor
MK V
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Argweld Purge Monitors detect the levels
of oxygen in purging gas
to indicate when
it is at a safe level to weld.
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Keeps waiting time to a minimum
The monitor can tell the operator exactly when the oxygen level is low enough to commence welding. No
estimating or guesswork is involved, so no time is wasted waiting for the correct level to be reached.
Saves on excessive use of inert gas
The exact oxygen content is given so no more inert gas than necessary has to be used to ensure that the
weld will be free of oxidation.
Prevents weld failures
Premature starts on welds are voided, high quality is ensured.
Highly portable
Its small size makes it easy and very convenient to use in all purging situations.
Low cost
The monitor is available at a low relative cost and is a perfect accessory for use with any pipe purging system
or argon welding enclosure.
Continuous monitoring of oxygen levels
A continuous read out of the oxygen level is given, even when welding is taking place. This can avoid unforeseen
purge problems that could cause quality failures after weld has started.
Safety
The purge monitor may also be used to check confined spaces for safe oxygen levels before personnel enter
the area and while they are working.
Calibration and Certification
Our instrument is supplied calibrated and certificates for Industry Standard are included. Re-calibration is
available to operators at any time.
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Specifications |
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Measuring Range |
0.01—20.9% oxygen |
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Accuracy |
At 20% ±0.2% |
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At 2% ±0.02% |
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Size in mm |
145 x 80 x 47 |
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Power |
Battery type PP3 9v |
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Scale |
LCD (Liquid Crystal Display |
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Weight |
0.237 |
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With inert gas welding, before commencing, it is essential to know that the oxygen content in
the welding volume has been reduced to a satisfactory level. The Purge Monitor is specifically
designed to measure oxygen content down to 0.01% with a high degree of accuracy. An oxygen
content of 1.0% is normally considered suitable to ensure that there is no oxidation of the
weld (there may be some exceptions to this figure, such as with titanium, zirconium and other
exotic metals.)
The Purge Monitor can be used as a continuous measuring device throughout the process or as
a sampling instrument for spot checks. Visible demonstrations and routine inspections for
quality control are made simple. The monitor can be used with any pipe purging system or argon
welding enclosure. It is very compact and completely portable.
Small, portable and very simple to use
The purge monitor is supplied in a robust housing. It comes complete with a stainless steel
probe, a 2 meter length rubber hose, a rubber vacuum bulb and a carrying strap.
It can be used in a continuous monitoring mode connecting the rubber tube to the exhaust
port of the purging device or enclosure and allowing the exhausted gas to flow free over the
sensor.
Alternatively, the monitor can be used in the sampling mode. The stainless steel probe is inserted
either into the volume being purged or the exhaust port. The rubber bulb is then used
to draw a sample of the gas across the sensor.
The LCD scale displays the oxygen level in 15 mm high figures which can easily be read from a
distance of several feet.
Once the desired oxygen level is achieved, welding can begin.
NOTHING COULD BE SIMPLER!
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Use the right tool for the job!
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