Magnehelic Gauge Mouthpiece adapter

[Open Ocean Diver]

Am I right in assuming that you draw breath through the mouthpiece whilst monitoring the reading on the gauge?

Yes just sipping, monitor your IP gauge when it just dips take the ready, do it a few times and take the average of the readings.

 

[rhwestfall]

Total hijack, sorry.

But why use a magnahelix vs. a digital diferential manometer?

digital, to me, just doesn't give you the "visual cue" of what is happening....

 

[rsingler]

Total hijack, sorry.

But why use a magnahelix vs. a digital diferential manometer?

With a pump (Regulator test rig you don't need to suck.), a digital gauge would work fine. With your mouth, there's just too much flicker for digital to let you see the cracking moment.

 

[arew+4]

With the data trace on you should be able to easily identify the peak negative pressure just before the valve cracks open and the pressure increases. Right?

 

[-JD-]

So the side fitted tube is connected to the gauge, the pressure used to crack it is then from the end fitting, which you are using a vac pump on but you could just suck? Thanks

Correct.