The directional dependent sampling mode relies on the logger profiles detection scheme (see Profile detection events generation). Therefore, it is intended only for vehicles that profile overall pressure changes greater than 3 dbar. If the direction is set to ascending and an upcast is detected while sampling at the slow period, the logger will revert to the fast sampling period even if the threshold has not been crossed (and vice versa if the direction is set to descending). See the following example. |