optional, multiple

setby=user | computer — compulsory

Via <setpo2> the maximum tolerated oxygen partial pressure chosen by the diver (set attribute setby="user"), or the dive computer (set attribute setby="computer") is set for diving with rebreathers. The value is given as a real number in the SI unit Pascal and remains constant as long as a new value is set with another <setpo2> statement. Hereby, set values by the user, and the dive computer are to be treated independent.

<waypoint>

—

<measuredpo2>, <samples>, <waypoint>

(see also <samples>)

<!-- user set max PO2 of 1.4 bar -->
<setpo2>1.4e5</setpo2>