Dräger Narkomed 2B - Connecting the Fresh Gas Hose; Adjusting the Gas Flow; Using the Oxygen Flush

Section 5 - Operation
Gas Delivery System
Connecting the
Fresh Gas Hose
To connect the fresh gas hose, pull out the fresh gas locking bar located
on the front of the Narkomed 2B to its extended position. Insert the 15
mm male fitting on the fresh gas hose into the 15 mm female terminal.
Release the spring-loaded locking bar over the fitting, allowing it to
“lock” the fitting into place.
WARNING: Do not pinch or kink the fresh gas hose leading from the
fresh gas outlet to the absorber.
Adjusting the
Gas Flow
To adjust the gas flow:
1. Turn the flow control knob located below the fine flowmeter tube for
the gas you want to adjust. Turning the valve knob counterclockwise
increases flow; turning the knob clockwise decreases flow.
2. As you adjust the flow control knob, observe the flow rate. Flow rate
is indicated by the flowmeter scale reading at the center of the float.
CAUTION: The flow of oxygen cannot be completely shut off (see
“Minimum Oxygen Flow” in “Section2-General
Description”). Do not force the oxygen flow control knob
past the zero stop in an effort to shut off the minimum
flow; forcing the knob can damage the valve seat.
Using the Oxygen
Flush
To use the oxygen flush, press the oxygen flush button, located on the
front of the Narkomed 2B, for a few seconds. This introduces an
unmetered flow of pure oxygen into the breathing circuit at a rate of
about 55 l/min.
O2 FLUSH
CONTRO
L
HANDL
E
FRESH GA
S
LOCKING BA
R
(EXTENDED POSITION)
RELEASE TO
LOCK
TABLETOP
FRESH GAS
OUTLET
FRESH
GAS
HOSE
OP20998
5-1-4