Suunto SS020395000 Scuba Diving Equipment User Manual


 
If you omit decompression stops for longer than three (3) minutes,
the RGBM algorithm is locked for 48 hours. When the algorithm is
locked, no algorithm information is available and ER is shown
instead. Locking the algorithm is a safety feature, highlighting that
the algorithm information is no longer valid.
In such a condition, you should descend back below the ceiling level
to continue the decompression. If you fail to do so within three (3)
minutes, Suunto D4i locks the algorithm calculation and displays
ER
instead, as shown below. Note that the ceiling value is no longer
present.
In this state, you significantly increase your risk of decompression
sickness (DCS). Decompression information is not available for the
next 48 hours after surfacing.
It is possible to dive with the device when the algorithm is locked,
but instead of the decompression information,
ER
is shown.
If you dive again in this error state, the algorithm lock time resets to
48 hours when you surface.
41