Doc. 12-4091 - r01 (9/12/12)
PG-6
SERVICE
GUIDE
SUPPORT: TOLL-FREE 888-383-DIVE │ FAX 510-729-5115 │ E-MAIL [email protected]
©
2002 DESIGN
(
2012)
DEFINITIONS
Absorbent:
chemical media used to remove CO
2
from exhaled gas
ADV:
automatic diluent valve
Bailout:
redundant gas supply system
BOV:
bail out valve
Breakthrough:
where absorbent scrubber fails, no longer removing CO
2
at an adequate rate
Breathing Loop:
parts of the rebreather that breathing gas circulates within
Diluent:
a gas used for breathing volume and to reduce the fraction of oxygen in the Breathing Loop
DSV:
dive surface valve
FO
2
:
fraction of oxygen
HP:
high pressure
IP:
intermediate pressure
LP:
low pressure
Negative Pressure Check:
a test placing the Breathing Loop under a vacuum condition to check for leaks
OC:
open circuit
OPV:
over-pressure valve
PO
2
:
partial pressure of oxygen
Positive Pressure Check:
a test that looks for leaks in the Breathing Loop when pressurized
QD:
quick disconnect
WOB:
work of breathing