Mixed Gas; System Specifications; Pneumatic; Flow - Datex-Ohmeda Aespire 7900 User's Reference Manual

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Mixed gas

System specifications

Pneumatic

Gas supplies
ACGO Port relief
w CAUTION
1009-0633-000
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.
P P P P i i i i p p p p e e e e l l l l i i i i n n n n e e e e g g g g a a a a s s s s e e e e s s s s
C C C C y y y y l l l l i i i i n n n n d d d d e e e e r r r r g g g g a a a a s s s s e e e e s s s s
C C C C y y y y l l l l i i i i n n n n d d d d e e e e r r r r c c c c o o o o n n n n n n n n e e e e c c c c t t t t i i i i o o o o n n n n s s s s
P P P P r r r r i i i i m m m m a a a a r r r r y y y y r r r r e e e e g g g g u u u u l l l l a a a a t t t t o o o o r r r r o o o o u u u u t t t t p p p p u u u u t t t t
p p p p r r r r e e e e s s s s s s s s u u u u r r r r e e e e
P P P P r r r r e e e e s s s s s s s s u u u u r r r r e e e e r r r r e e e e l l l l i i i i e e e e f f f f v v v v a a a a l l l l v v v v e e e e
P P P P i i i i p p p p e e e e l l l l i i i i n n n n e e e e c c c c o o o o n n n n n n n n e e e e c c c c t t t t i i i i o o o o n n n n s s s s
( ( ( ( f f f f i i i i l l l l t t t t e e e e r r r r e e e e d d d d ) ) ) )
P P P P r r r r e e e e s s s s s s s s u u u u r r r r e e e e d d d d i i i i s s s s p p p p l l l l a a a a y y y y s s s s
P P P P i i i i p p p p e e e e l l l l i i i i n n n n e e e e i i i i n n n n l l l l e e e e t t t t p p p p r r r r e e e e s s s s s s s s u u u u r r r r e e e e
Valve limits fresh gas pressure to 35 kPa (5.5 psi) at the flush flow.
All gases supplied to the system must be medical grade.

Flow

Flow rates: Minimum O
Scale
Gas
(two flow tubes)
O
0.05 -0.95 L/min
2
1-15 L/min
N
O
0.05 -0.95 L/min
2
1-10 L/min
6 Specifications and Theory of Operation
O
, Air, N
O
2
2
O
, N
O, Air (maximum: 2 cylinders of each gas); 1
2
2
cylinder max. on pendant model; 3rd cylinder is N
only
Pin indexed (all gases); nut and gland DIN 477 (O
Air); large cylinder kit available for O
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)
Approximately 758 kPa (110 psi)
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
Color coded gauges
280-600 kPa (41-87 psi)
flow: 25 to 75 mL/min.
2
Note: The link system
sets the nominal O
25% of the total O
N
O flow.
2
O
2
, N
O,
2
2
and N
O
2
2
, Air, and N
O
2
2
flow
2
and
2
6-5

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