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Roger, Jody, and others,
Roger writes:
>
>anyone have any experience with the Suunto Ion, or Suunto's in general?
>
I just finished sending the following entry to Kevin Grover for the dive
computer FAQ on the Suunto EON.
I have had mine for a couple of months and like it greatly.
Jody writes:
>I do take strong exception to air-integrated computers. In the last five
>years, of the four divers I have seen run out of air, three were diving
>air integrated computers. In one of those cases, it was due to an
>incorrect pressure guage reading on a Orca Delphi (1000PSI when he had
>0). In the other two cases, I belive it was becuase digital numbers do
>not "sink in" the way a guage reading does. A glance at a guage at
>300PSI, well down into the RED zone scares most divers, but a nice
>digital readout saying "318PSI" doesn't seem to shake people up. This
>was my experince when I was diving my Delphi (for the short time it
>lasted); I found myself pushing my air MUCH more.
My experience so far with an air integrated computer has been good. I find
the air time remaining display useful and don't have trouble comprehending
the pressure reading. In the EON, the pressure is displayed as a bar graph
as well as a numeric value which helps.
Also, when the pressure gets to 50 bar, the pressure display starts flashing
to draw your attention to the fact.
An additional feature of the EON is that it logs the starting and ending
pressures for each dive and hence encourages you to record this information.
I find this helps in air planning.
The only problem with air integrated computers is if you are using twin
tanks (no manifold), you can only monitor the pressure in one tank and hence
the air time remaining becomes meaningless.
I have only done one deco dive with the EON and I found it's deco info quite
easy to use (I was only using it as backup for tables though).
I would be happy to answer any questions on it (I don't yet have the PC
interface, but am saving for it!)
Cheers,
David.
______________________________________________________________________________
Here is a FAQ entry adapted from the entry for the Solution:
Name/Model: Suunto/Seaquest EON
Manufacturer: Sunnto
Date of
purchase: June 1994
Max Depth: 325ft / 99m
Units: Imperial or Metric (must specify on order)
Decompression: Full display of time to ascend and ceiling
Algorithm (if known) - Unknown, but is haldanian using 9 compartments with
half times of 2.5, 5, 10, 20, 40, 80, 120, 240, 480 mins
Air Pressure? - Yes, up to 280bar (4000 psi), Air time remaining display
Remaining time at depth?
- Gives remaining no-decomp time at current depth If you enter
decomp mode, it will show time remain at ceiling before you
can surface
Temp. Gauge: Yes
Log Features: # of dives: approx 25 hours of dive time.
information recorded : Dive profile every 1 min (adjustable
via the PC interface to 30 or 20 sec intervals), Max
depth, duration and surface interval. Any violation of
ceiling or ascent rate. Date and time of dive start and
start and finish air pressure. Temperature at deepest point
of dive. Also total No. of dives, total
time underwater and greatest depth.
- It will retain logs for 25 hours of dive time (using 1 min recording
intervals - less time if the recording interval is shortened),
so depends on how long each dives is, the logs can retain more or
less # of dives
- information recorded: Max depth, Dive time, Surface
Interval and dive no, and all warning and errors if
applicable. Temperature, entry date and time, entry pressure and
exit pressure.
- It also has a profile mode which will display all info for
each 1 minutes interval
- It also has a history mode which tells you the deepest dive
ever and accumulated dive time so far in hours
Location: Console mount
Activation: Auto at 5ft (1.5m)
Safe to fly
indicator: Yes (graphic)
Error Conditions:
- It will enter ERR mode if you dive below 325ft (you have
15 sec to ascend before entering ERR mode) or surface without
completing required decompression.
The computer still works as a depth gauge/bottom timer/pressure
gauge when in ERR mode
Altitude Compensation
- You can adjust the computer in a 700m intervals up to 2400m
Approx Cost
- $900 Australian
User Replaceable
Battery: Yes, usage time ~2000 (2yrs, 200 dives)
No Decomp. Times for first dive (set to sea level altitude):
3 - 9m Infinity 30m 18 min
12m 127 min 33m 13 min
15m 72 min 36m 11 min
18m 52 min 39m 9 min
21m 37 min 42m 7 min
24m 29 min 45m 6 min
27m 23 min
Additional functions
- It has a simulation mode which allows you to scroll through a
simulated dive plan so you can see how long you can stay
down and what happen if you gets into decomp mode. The
simulation time is 4 times real time (ie 15 sec real time
represents 1 min). In surface interval time, it simulates at 12
times real time.
- This computer has a 3 segment ascent rate indicator - 11, 22
and 33 ft/min. When you exceed 33 ft/min, it will alternate
between current depth and blinking "SLOW"
- Audible alarm - It beeps when entering warning and error
mode
Dislikes:
- The max depth, temperature and total bottom time cycle during the
dive. total bottom time for 6s, temperature for 1s and max depth
for 2.5s. Can be annoying to have to wait to see the info you want.
Other information:
A PC interface is available to suit the IBM PC compatibles. It allows
downloading of: depth profile of dives, dive time, dive number,
cylinder pressure at the beginning of the dive, cylinder pressure
at the end of the dive, dive entry time and date, temperature at
maximum depth, surface interval time, altitude setting, any violations,
serial number.
On power on, the EON displays a serial number.
Overall impression:
I like using it a lot and have found it easy to use. The display
has a lot of information and takes a bit of getting used to so
that you know where to look (particularly when narced!)
______________________________________________________________________________
David Giddy, | Voice: +61 3 253 6388
Telstra Corporation, | Fax: +61 3 253 6144
P.O. Box 249, Clayton, Victoria 3168, AUSTRALIA | Net: d.giddy@tr*.oz*.au*
X400: g=david s=giddy ou=trl o=telecom prmd=telecom006 admd=telememo c=au
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