Technical information

65
4 Functions during the Dive
III Uwatec
®
Aladin
®
Air Z O
2
III
4.12 Remaining bottom time RBT (only with pressure transmitter)
RBT is the time left at the current depth until the point of time when the ascent must be started. The RBT
is shown in the lower display. The RBT is calculated on the basis of the current tank pressure, the tempe-
rature, and the dive data so far registered. The RBT is based on the assumption that the tank pressure
should amount to at least 580 psi at the end of the dive. Alterations to this are possible (see page 88).
Never allow the RBT to go below three minutes. If the RBT goes below three
minutes there is a danger of insufficient supply of gas mixture for the ascent
as well as an increased risk of decompression sickness and serious injury or
death may result!
The RBT-value should never reach <0:>. With a RBT=0 the remaining tank
reserve may not be guaranteed anymore after ascending. It is possible that
the gas reserve will not be big enough for the ascent.
decompression range
no-stop time
RBT 21min
7min
dive time
deco info
NO STOP
depth
max. depth
CNS O
2
LIMIT
%
tank data
psi
tank data
psi
WARNING
WARNING