Datex-Ohmeda Aespire 7900, User'S Reference Manual

Page: 91 / 118

6 Specifications and Theory of Operation
1009-0633-000
6-5
Mixed gas
The mixed gas goes from the flowmeter outlet through the vaporizer that is ON,
to the fresh gas outlet, and into the breathing system. A pressure relief valve
sets the maximum outlet pressure.
System specifications
Pneumatic
Gas supplies
ACGO Port relief
Valve limits fresh gas pressure to 35 kPa (5.5 psi) at the flush flow.
w
CAUTION All gases supplied to the system must be medical grade.
Flow
Flow rates: Minimum O
2
flow: 25 to 75 mL/min.
PP
P Piiiippp peeeelllliiiinnn neeee ggggaaa asssseeeessss
O
2
, Air, N
2
O
C C C Cyyyylllliiiinnn nddd deeeerrrr ggggaaa asssseeeessss O
2
, N
2
O, Air (maximum: 2 cylinders of each gas); 1
cylinder max. on pendant model; 3rd cylinder is N
2
O
only
C C C Cyyyylllliiiinnn nddd deeeerrrr ccccooo onnn nnnn neeeeccccttttiiiiooo onnn nssss Pin indexed (all gases); nut and gland DIN 477 (O
2
, N
2
O,
Air); large cylinder kit available for O
2
and N
2
O
PP P Prrrriiiim m m maaa arrrryyyy rrrreeeegggguuu ullllaaa attttooo orrrr ooo ouuu uttttppp puuu utttt
pp p prrrreeeessssssssuuu urrrreeee
• Pin indexed: The primary regulator is set to pressure
less than 345 kPa (50 psi).
• DIN-477: The primary regulator is set to pressure
less than 414 kPa (60 psi)
PP P Prrrreeeessssssssuuu urrrreeee rrrreeeelllliiiieeeeffff vvvvaaa allllvvvveeee Approximately 758 kPa (110 psi)
PP P Piiiippp peeeelllliiiinnn neeee ccccooo onnn nnnn neeeeccccttttiiiiooo onnn nssss
((((ffffiiiilllltttteee errrreeeeddd d))))
DISS-Male; DISS-Female; AS 4059 (Australian); S90-
116 (French Air Liquide); BSPP 3/8 (Scandinavian) or
NIST (ISO 5359). All fittings available for O
2
, Air, and N
2
O
PP
P Prrrreeeessssssssuuu urrrreeee ddd diiiissssppp pllllaaa ayyyyssss
Color coded gauges
PP
P Piiiippp peeeelllliiiinnn neeee iiiinnn nlllleeeetttt ppp prrrreeeessssssssuuu urrrreeee
280-600 kPa (41-87 psi)
Gas
Scale
(two flow tubes)
O
2
0.05 -0.95 L/min
1-15 L/min
N
2
O 0.05 -0.95 L/min
1-10 L/min Note: The link system
sets the nominal O
2
flow
25% of the total O
2
and
N
2
O flow.