2
2
FIGURE 1
FLOWMETER FEATURES
1
.
Oxygen Flowmeter Tube
indicates the
flow of O
2
in L/min ±5%.
2
.
Nitrous Oxide Flowmeter Tube
indicates flow of N
2
O in L/min ±5%.
3
.
Nitrous Oxide Failsafe System.
Dual-
seal
oxygen-piloted
valve
system
that
automatically
maintains
the
%
N
2
O
concentration setting with any change in the O
2
flow or pressure. N
2
O flow is proportionately
reduced if O
2
is shut off or the pressure is
reduced (check before each use).
4
.
Flow Control Knob
controls the
combined flow of O
2
and N
2
O (or O
2
flow only
when the Concentration Control Knob is set to
0%).
5
.
Concentration Control Knob
controls
the % concentration of N
2
O but does not change
the O
2
flow rate. (70% Maximum N
2
O delivery.)
(Check Monthly)
6
.
Emergency Air Valve
automatically
provides the patient wit h ambient air if gas flow
is interrupted. (Check Monthly)
7
.
Non-Rebreathing Valve
guards against
CO
2
build-up and rebreathing of used gases.
(Check Monthly)
8
. Positive On - Off Switch
Reduces the
possibility of accidentally leaving the machine
ON.
9.
Power Flush
provides extra delivery of O
2
to the breathing bag. (Check Monthly)
10.
O
2
Quick Connect
(left side of
machine), facilitates connection of positive
pressure/ demand valve for emergency Oxygen.
11.
Bag Tee Outlet
connects to fresh gas
tubing.
12.
3L and 2L Bag Connection
1
2
6
7
5
3
9
12
10
11
8
4
