Dive Rite Bridge II setting for maximum PO2

BertC · 09-11-2009, 06:06 PM

Hello,

i was recently certified for nitrox and got a used, excellent condition Bridge II as a backup for my Oceanic Veo 180. I have a copy of the manual of the Bridge II but cannot find any reference for adjusting the setting for changing maximum PO2. So, it therefore appears that this setting is not user adjustable. So, I don't know what Dive Rite has set it for. Does anyone know if this setting is accessible or, if not, what the computer has maximum PO2 set for?

I do know that I may have to contact Dive Rite eventually, however, since this is such an old model and since it was once widely used, I thought I could quickly get better information from people on this forum than calling Dive Rite and asking about an old product.

Thanks for any help you can give me.

**dalehall** · 11-08-2009, 07:25 PM

Bert, I found an article online that mentions a lot of specs about the Bridge 2.. (quoted below) but doesn't mention a max PO2 setting.. Is it possible that "back in the day" they didn't program a limit into the first gen EAN computers?
The article:
The screen of the Bridge II is laid out in three framed sections, each of which displays a variety of information depending on which of the five basic modes the computer is in, and the Bridge II uses over ten different displays. This may sound cponfusing but the information is well presented. The variety of modes is accessed by manipulating the three metal contacts along the bottom of the screen in different combinations for various lengths of time. Two other contacts along the side of the screen are used when downloading information to a PC using the optional interface. In addition to providing you with all necessary dive and decompression information, the Bridge II also tracks your exposure to oxygen which is displayed on the Oxygen Limit Indicator (OLI) bar graph. The extended range of the Bridge II, will track a divers progress down to 100 metres and for bottom times up to 599 minutes. During a dive, a series of audible alarms alert you to changes in status or any infractions. Before any use of the Bridge II with an EANx mixture other than air, the mixture must be entered into the computer, otherwise the computer will default to the theoretically impossible mixture of 50%O2/79%N, causing alarms to sound and displays to flash long before the user can get into any trouble.