Info New Excursion TechLite Deco Screens (chamber test)

[tursiops]

@tursiops The thing you were wondering about is an ascent/descent rate indicator. The one with the double arrows.

The 11 with a downward double arrow means 11 ft/s downward? But I just ascended to 46 ft from 106 ft....

 

[rhwestfall]

@tursiops - you said you can't smoothly control the pressure release (depth change) so I wonder if it is a shock/surge (like a water hammer effect) in your test vessel that is wonking out the sensor?

If the sample time coincided with that action, it could lead to this....

 

[Manatee Diver]

@tursiops The thing you were wondering about is an ascent/descent rate indicator. The one with the double arrows.

I think it would be better for them to switch positions permanently. That way the position of the ascent rate indicator stays constant. Moving screen elements around just doesn't seem like a good idea.

 

[lexvil]

Is the computer immersed in liquid ?

 

[tursiops]

@tursiops - you said you can't smoothly control the pressure (depth) so I wonder if it is a shock/surge (like a water hammer effect) in your test vessel that is wonking out the sensor?

If the sample time coincided with that action, it could lead to this....

Maybe. The ascent indicator for the NDL display is in a different location and only uses one arrow, not two.

Is the computer immersed in liquid ?

No. I forgot to do that.

 

[rhwestfall]

if it isn't in liquid, it won't properly detect the pressure....

 

[tursiops]

if it isn't in liquid, it won't properly detect the pressure....

Not my experience.

 

[tursiops]

Wow how cool be nice to see the pressure pot

Shrader tire valve inlet, needle valve outlet to "ascend." Shutoff valve to avoid leakage so I can stay "at depth." Use a small tire inflator to pump it up. Pressure gauge matches depth shown on computer, i.e. at 106 ft it should be about 62 psi, which is what shows.

 

[lexvil]

Not my experience.

It may have some effect, liquid conveys pressure more reliably.

 

[tursiops]

It may have some effect, liquid conveys pressure more reliably.

It should be the same in steady state.