Yes experienced in dives, with this computer not so much. Getting Nitrox next weekend. The problem I am having is reading the dives. I have done 2 saltwater dives with it and played with it in pool a couple of times.
What I see on the DC now is 54 min surface intervale the air temp of 72 the time and above the time a 2
next screen is 39 min bt(bottom time) 47 as max depth
So I understand I have a dive of 39 mins at 37 feet and a surface interval of 54 mins. What is the 2 for?
I would guess it is the dive log #, Dive #2.
next screen has --- for si then 72 air temp and a 1 on right above time
guessing: --- Is a surface Interval greater than a certain number of hours (like days)
next screen has 37 bt at 46 feet
37 min bottom time, max depth 46'
next screen is 27 Si at 72f with a 2 above time
27 min Surface Interval, dive #2 to 72' depth . . . But what is Bottom Time?
next screen has a 000 bt at 5 ft
This was probably not a logged dive, since it was not deep.
So does this mean last dive was 39 min bt at 47 feet and Si at 27 min and 37 bt at46 feet?
You didn't say what Bottom time for the 2nd dive.
Unsure what the 1 and 2 on right is for.
Dive log counter. You should log in your book that your dive count was actually ###, so the dive counter is that number plus a certain # of dives to match your log book.
Other item is how do I get it out of the console it is in to replace battery when it is time? It seems to be a unfelxable boot.
Maybe seems that way, but it will come out.
Last item the DC seems to have a place on the left for a data cable. IS this item capable of downloading and if so where can I get a cable for it? I have looked online and find nothing about it.
Thanks so much
TJ
Sorry it isn't downloadable. You will need to annotate its report into your log book each time. Good Luck. 
