According to Uwatec (I have a friend who lives down the street from their 
factory in Switzerland), the digital bottom timers are programed with the 
same variable ascent rates as the Aladin computers.  The Aladin ascent 
rates (from the old Uwatec website) are:


 depth [m]:   <6  <12  <18  <23  <27  <31   <35  <39  
<44   <50   >50

 speed         7   8    9   10   11   13    15    17    18   19    20
 [m/min]:

 =A0            =A0   =A0    =A0    =A0    =A0   =A0     =A0     =A0     =
=A0    =A0     =A0

 depth [ft]:  <20 <40  <60  <75  <88 <101  <115  <128 
<144 <164  >164

 speed        23   26   30  33   36   43    49    56    59   62    66
 [ft/min]:

Best -

Bill Wolk



On8/5/00 1:38 AM, Sean T. Stevenson wrote:

>Not entirely sure on this.  I just ignore it because the differential
>time interval is actually set too short (this could be different
>between the old and new models).  I can swing my arm from below me to
>above me without changing my body depth and the thing shows a violation
>due to the speed.  Of course, I have long arms...
>
>I forget where I heard this, but someone told me once that it was
>programmed with two rates according to depth (something like 60 fpm
>below 33 feet, and 30 fpm above) but I have not verified this.  It
>really is a moot point.  Make dead slow ascents between all stops,
>paying careful attention to the last 20 feet or so before surfacing..
>
>-Sean
>
>
>On Fri, 4 Aug 2000 18:30:53 EDT, RLucas1013@ao*.co* wrote:
>
>>In a message dated 8/1/00 11:03:12 PM EST, ststev@un*.co* writes:
>>
>><< 
>> Ascent warning
>> 
>> 100% corresponds to the recommended ascent rate.  At 110% an additional
>> optical warning in the shape of an arrow appears.  Above 140% the arrow
>> flashes.
>>  >>
>>Hi Sean, I called Scuba Pro regarding recommended accent rates programed 
onto 
>>the unit, but no one seem to know what the actual rate of accent is in 
>>feet/PM ascending from a specific depth that would equal 100%. Any Ideas?
>>Later BOB
>>  
>>
>
>
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Best regards --

Bill

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