Not sure if this should be posted here or in the rebreather forum, but since it's a near miss and a lesson learned, I put it here. This was just posted on YouTube, and mentioned on another dive forum:
I don't dive a Meg, but I was wondering about how that happened without notice. It's not clear from the video whether the diver eventually noticed the high PO2 or if the person filming him saw it and alerted him. I couldn't see the front of his HUD, but I was wondering why his HUD didn't alert him? The guy who posted the video mentioned in the comments that it might have been the video lights. I was wondering if the fact that he missed the alarm could have been the result of the HUD design or just diver inattentiveness?
I like the JJ HUD - a light for each sensor, and the code flashes red for alert values above 1.6 or below 0.4. There is also a buddy warning light on the end of the HUD, so if it's flashing an alert value to the , the end (visible to other divers) is also flashing.
Looking at the Meg HUD simulator, it looks like it flashes red for low and green for high alerts. Maybe this website simulates older software or hardware? It does seems potentially confusing - it flashes red for 0.7 and green for 1.8? I guess it's a design choice that you can get used to, but in this case it looks like it didn't work, for whatever reason. People seem to love Megs, and it looks like a well designed unit, just wondering about this...
I switched to a NERD myself, but the JJ HUD is still a good backup.
I don't dive a Meg, but I was wondering about how that happened without notice. It's not clear from the video whether the diver eventually noticed the high PO2 or if the person filming him saw it and alerted him. I couldn't see the front of his HUD, but I was wondering why his HUD didn't alert him? The guy who posted the video mentioned in the comments that it might have been the video lights. I was wondering if the fact that he missed the alarm could have been the result of the HUD design or just diver inattentiveness?
I like the JJ HUD - a light for each sensor, and the code flashes red for alert values above 1.6 or below 0.4. There is also a buddy warning light on the end of the HUD, so if it's flashing an alert value to the , the end (visible to other divers) is also flashing.
Looking at the Meg HUD simulator, it looks like it flashes red for low and green for high alerts. Maybe this website simulates older software or hardware? It does seems potentially confusing - it flashes red for 0.7 and green for 1.8? I guess it's a design choice that you can get used to, but in this case it looks like it didn't work, for whatever reason. People seem to love Megs, and it looks like a well designed unit, just wondering about this...
I switched to a NERD myself, but the JJ HUD is still a good backup.