Dräger Narkomed 2B Service Manual page 161

NM2B
5.5.18A The nitrous oxide flow should stop when the flow of oxygen is
5.5.19A Un-pinch the N
5.5.20A Close the O
5.5.21A Close the N
5.5.22A Reconnect the pipeline hoses.
5.5.23A Replace the flowmeter housing rear cover.
5.5.24A Perform the PMS Procedure given in Section 6.
Figure 5-5A: LOW FLOW OXYGEN RATIO CONTROLLER
Rev. F
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ADJUSTMENT AND CALIBRATION PROCEDURES (continued)
between 250 and 400 ml per minute.
O bypass line on the ORC.
2
flow control valve, and fully open the N
2
valve. Verify that the O
O flow control valve and turn the System Power switch
2
to STANDBY.
5-17B
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concentration is 22 - 31%.
2
O flow control
2
ADJUSTING
SCREW
LOCKNUT
LOW FLOW
ORC ASSEMBLY
N2O BYPASS
LINE
SV49042