What are the BioPak “end of mission life indicators”?
The BioPak provides the user with three separate types of end of mission life indicators. A mechanical indicator is provided as a red portion of the remote pressure gauge. When the needle of the gauge is within the red band the BioPak is nearing the end of the mission life. A visual indication is provided by a flashing LED lamp that will flash red as soon as the remaining oxygen stores are at 25% of full capacity and will continue flashing until the BioPak cylinder is closed or the oxygen is fully consumed. A horn will sound for a ten-second period when remaining oxygen stores are at 25% of capacity. The horn will then change to a chirp that will increase in frequency until the BioPak cylinder is closed or oxygen is fully consumed. The horn and LED indicators operate independently and isolated from the gauge so that the BioPak is provided with redundant alarming systems.
