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FMECA files supporting Deep Life's Open Revolution Rebreathers

FMECA Volume 1: Top Level (308KB)
Last updated 29th May 2009, covering the OR_Umbilical, OR_Incursion and OR_Apocalypse models.
FMECA Volume 2: MTBF and MTBCF of Electronics (52k)
Last updated 29th May 2009.
FMECA Volume 2a: Supporting Excel File of Calculation (248k)
FMECA Volume 3: Electronics (201KB)
FMECA Volume 3: Electronic Circuits Reviewed, as pdf (8.2MB)
Zip file contains pdfs of the circuit diagrams submitted for review (SubA) and the circuit diagrams after modification to comply with the decisions taken during the review (SubB). Note there are Rev C and D circuits to add to this, due to changes during compliance verification.
FMECA Volume 4: Mechanical Components (5.4MB)
The FMECA of the mechanical components. Last updated 23rd Aug 2009.
FMECA Vol 4 Appendix A: CO2 Sensor Window Analysis (1.6MB)
FMECA Volume 5: Software and Firmware (568KB)
FMECA covering firmware and software in the Open Revolution rebreathers and rebreather monitors. This covers both primary FMECA and also correct by construction features to avoid failures from design or programming errors.
FMECA Volume 6, Rev B15: Top Down Rebreather Faults (372KB)
The top down failure modes, including all failures that could create a safety issue during a dive. This document covers all types of rebreathers, and faults on any rebreather type. Last updated 23rd Aug 2009
FMECA Volume 7: Rebreather Fault Tree Analysis (22.1MB)
The top down failure modes for a rebreather in the form of a Fault Tree Analysis. Last updated 10th July 2009
FMECA Volume 8: Rebreather Communications (Umbilical Divers Only) (22.1MB)
FMECA for the umbilical diver's rebreather communications, telemetry and thermal balance control system. Last updated 10th July 2009