| Steve, you forgot two important selling features! (from the manual):
1) The MH EDS-O2D2 will produce a two second Red light and a two-second series of beeps sound to indicate that the oxygen flow from the tank has stopped. This typically means that the oxygen supply is depleted; the supply line has been pinched closed, is plugged up or has come off; or the valve has failed to open.
2) The MH EDS-O2D2 will produce a visible Red light (2 flashes) and audible (2 beep) Apnea alarm to indicate that the pressure drop indicating breathing has not occurred within the past 45 seconds. This typically occurs for the following reasons: (1) The user has quit breathing for 45 seconds or the cannula/face mask is improperly worn. (2) The outlet tube from the MH EDS-O2D2 to the mask or cannula has become disconnected. (3) The outlet tubing has become pinched closed or is plugged off. The apnea alarm can be used as a “put-your-oxygen-on” alarm once you get to the preset D mode altitude (D5 or D10). In this case, the alarm will not sound if you already have the cannula or face mask on properly.
I inherited my system with the Legacy and it warns me when I start breathing through my mouth instead of the cannula. It certainly would help detect a low tank or stopped flow. On a number of flights where I am busy with flying I've heard the warning and it has helped prevent problems. I agree these units are great.
Paul Legacy RG On 31-Aug-09, at 5:56 PM, Steve Colwell wrote: Just one of the advantages of the Pulse System is the constant reminder it is working when you feel the Pulse. http://www.mhoxygen.com/ “Mountain High’s newest breakthrough technology is the two-person EDS O2D2 Two Place Pulse Demand ]No oxygen deficit fatigue after flying above 8000’
Saves fuel and extends range Cool and smooth above the clouds Next to no traffic 12,000’ to 18,000’ Occasional great tailwinds or flexibility to avoid unfavorable winds Pulse System dramatically reduces oxygen waste of constant flow systems (I ought to be selling these things)
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