Dräger Narkomed 2B - Oxygen + Nitrogen Concentration; Oxygen + Helium Concentration

PMC PROCEDURE (continued) NM2B
6.17.5 Oxygen + Nitrogen Concentration - if applicable
6.17.5.1 Depress the O
2
FLUSH button for 5 seconds.
6.17.5.2 Does the O
2
MED read 97-100% within 3 minutes?___ (Y)
6.17.5.3 Set the gas selector switch to ALL GASES.
6.17.5.4 Set O
2
flow to 4 l/min; nitrogen flow to 2 l/min.
( ) 6.17.5.5 What is the oxygen concentration after the value stabilizes? ___ %
(64-70)
6.17.5.6 Close the nitrogen cylinder valve and bleed the pressure from the
circuit.
6.17.5.7 Close the nitrogen flow control valve.
6.17.5.8 Set the gas selector switch to O
2
+N
2
O.
6.17.5.9 Close the oxygen flow control valve.
6.17.6 Oxygen + Helium Concentration - if applicable
6.17.6.1 Depress the O
2
FLUSH button for 15 seconds.
6.17.6.2 Does the O
2
MED read 97-100% within 3 minutes? ___ (Y)
6.17.6.3 Set the gas selector switch to ALL GASES.
6.17.6.4 Set O
2
flow to 4 l/min; helium flow to 2 l/min.
( ) 6.17.6.5 What is the oxygen concentration after the value stabilizes? ___%
(64-70)
6.17.6.6 Close the helium cylinder valve and bleed the pressure from the
circuit.
6.17.6.7 Close the helium flow control valve.
6.17.6.8 Set the gas selector switch to O
2
+N
2
O.
6.17.6.9 Close the oxygen flow control valve.
Rev. Y
6-42
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