Dräger Narkomed 2B Service Manual page 111

NM2B
4.22.32 Open an oxygen cylinder valve and turn the System Power switch to
4.22.33 Set the oxygen flow to five liters per minute.
4.22.34 Close the oxygen cylinder valve.
4.22.35 As the pressure drops, the O
4.22.36 If the alarm activates when the pressure is below 34 psi or above
4.22.37 Turn the System Power switch to STANDBY.
4.22.38 Disconnect the test gauge and replace the plug in the regulator line
4.22.39 Replace the table top and its retaining screws.
4.22.40 Replace the flowmeter housing rear cover and its retaining screws.
4.22.41 Connect the pipeline hoses.
4.22.42 Perform the PMS Procedure given in Section 6.
Rev. A
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REPLACEMENT PROCEDURES (continued)
ON.
the pressure is between 40 and 34 psi as shown on the test gauge.
above 40 psi, turn the adjustment wheel (see illustration), repeat the
test and adjust as necessary to bring the set point into the correct
range.
tee fitting.
4-79
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SUPPLY alarm should activate when
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