Dräger Narkomed 2B Service Manual page 156

ADJUSTMENT AND CALIBRATION PROCEDURES (continued)
5.4.31 The nitrous oxide flow should stop when the flow of oxygen is
between 200 and 300 ml per minute.
* 5.4.32 If the O
flow drops to between 100 and 200 ml per minute, proceed to Step
5.4.34.
* 5.4.33 If the O
oxide flow drops to between 100 and 200 ml per minute, adjust the
MPL switch until the O
5.4.34 Close the N
STANDBY.
5.4.35 Replace the rear cover of the vapor box.
5.4.36 Perform the PMS Procedure given in Section 6.
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/N O FLOW RATIO lamp turns off when the nitrous oxide
2 2
/N O FLOW RATIO lamp does not turn off when the nitrous
2 2
/N O FLOW RATIO lamp turns off.
2 2
O flow control valve and set the System Power switch to
2
5-14
NM2B
Rev. A