Dräger Medical Narkomed GS, Operator'S Instruction Manual

Page: 23 / 204

Draeger Medical, Inc.
Narkomed GS Operator’s Instruction Manual 2-3
General Description 2
Color Coding Each connection, valve, gauge, and flowmeter is labeled and color-coded for
the appropriate gas, as shown in Table 2-1 below.
Table 2-1. Gas System Color Coding
Gas Entry Via
Pipeline Gas from the hospital pipelines enters the Narkomed GS through hoses
connected to indexed pipeline inlets located on the side of the flowmeter
housing. The indexed connector system reduces the risk of delivering the
wrong gas to a patient by preventing incorrect connection of gas pipes. The
inlets include check valves, which prevent back flow leakage into the
atmosphere (when supply hoses are not connected) or into the attached
supply hoses (when reserve cylinders are in use). Each pipeline connection
is equipped with a filter to prevent foreign material from entering the
internal gas piping of the Narkomed GS. Pipeline gases should be supplied
at 50–55 psi.
Pipeline
Pressure
Gauges The anesthesia machine includes pipeline pressure gauges for oxygen and
nitrous oxide. On machines equipped with air, a pipeline pressure gauge
for air is also included. The gauges are located directly below their
corresponding flowmeters and flow control valves, and are labeled and
color-coded for their respective gases. Concentric scales in psi and kPa
indicate the pipeline supply pressure. A typical pressure gauge and
flowmeter arrangement is shown in Figure 2-2.
GAS MARKING USA GERMANY ISO
Air AIR Yellow Yellow Black/White
Checkered
Carbon Dioxide CO
2
Gray Black Gray
Nitrous Oxide N
2
O Blue Gray Blue
Oxygen O
2
Green Blue White
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