Shearwater DiveCAN
®
Petrel
DocRevB
49
Brightness
The display brightness has three fixed brightness settings plus an
Auto mode�
The fixed options are:
• Low: Longest battery life�
• Med: Best mix of battery life and readability�
• High: Easiest readability, especially in bright sunlight�
Auto will use the light sensor to determine the brightness of the
display� The more ambient light there is, the brighter the display will
get� At depth, or in dark water, very little brightness is needed to see
the display� The Auto setting works well in most situations�
The brightness of the display is the major determinant of battery
life� Up to 80% of the power consumption is to power the display�
When a low battery alert occurs, the display brightness is
automatically reduced to extend battery life�
Setpoint -> �19
Pressing SELECT when this menu is displayed changes the PPO2
setpoint to 0�19� This menu is only available when on the surface�
This feature is provided as a convenience to prevent the solenoid
from firing when setting up the rebreather on your workbench.
There is very little room for error with a 0�19 setpoint, so it should
never be used when breathing on the loop�
If a dive begins on the 0�19 setpoint, the setpoint is automatically
switched up to the low setpoint�
DEPTH TIME STOP TIME
Exit
Edit
O
Brightness Auto
.85 .86 .84
NEVER breath on the loop when setpoint is 0�19
There is very little room for error with a 0�19 PPO2 setpoint� A small drop in PPO2 could
lead to hypoxia, which can be just as deadly on the surface as underwater�
The 0�19 setpoint is only for use during setup and transportation�
DEPTH TIME STOP TIME
O
Setpoint -> .19
.85 .86 .84