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                                    RE>Beuchat Aladin Maestro Pro/
Hi Scott,

I have for many years an Aladin Pro and I tested it many times. The error mode
comes in the situation when:

>>'Your computer will go into Gauge Mode if:
>>  more than five minutes has elapsed with the depth less than the ceiling


In the manual "less" means shallower and not deeper. It means, when the diver
goes over the deco stop depth (for example 5 m  instead of 6 m) the Aladin
start to blink and to beep. Five minutes later the decompression computer goes
in error mode.

BUT!!!

When I am over the deco stop, the decompression computer "stop" counting my
decompression time and start again when I go deeper then the required depth. It
means I will have penalty decompression time if I go over the limit even for a
few seconds.

I can imagine two possible situations of breaking the rules:
     1. Diver unintentionally goes over the limit and having a signal from the
computer goes back for proper decompression.
     2. There are some emergency reasons and diver went higher then the deco
stop intentionally. After that we can have two options: A, Diver goes back for
decompression in a short time. B, The emergency situation is critical and
somebody needs medical treatment immediately.

In first situation 5 minutes must be enough. In the second case if we must
bring somebody the decompression chamber we can't go back again to the water
and even 30 minutes wouldn't be enough.

In fact, Aladin is one of the best computers if we see error modes. The "old"
Aladin Pro goes in error mode only 10 minutes after breaking the decompression
rules.
 
Laszlo Abel - CMAS Instructor - Laszlo_Abel@MA*.CE*.CH*

--------------------------------------
Date: 9/3/95 12:46
To: Laszlo Abel
From: Scott Cherf
Folks -

Today in a moment of weakness I succumbed and bought an Aladin Maestro
Pro (aka Nemesis II Nitrox).  When I got the beast home, I started to
RTFM, and found on page 43 'Gauge Mode Alarm' the warning that:

'Your computer will go into Gauge Mode if:

  more an five minutes has elapsed with the depth less than the ceiling
[snip]'

So now I'm worried.  I bought the machine for decompression diving.  I
understood from advertising that this was a deco computer, in fact they
had gone to the trouble of adding a second mix feature specifically designed
to support air diving with a high O2 deco gas.  Now I read the manual and it
implies that the computer will turn into a gauge if I don't 'ascend
immediately' when it indicates that deco is required.

Is this a 'feature' of the Beuchat version, or is it a Cochran feature?
From the manual, it looks like I should return the thing in the morning.
Am I reading this wrong?

Thanks,
Scott.
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