Calibrations - Dräger Narkomed 2B Service Manual

NM2B

6.6 CALIBRATIONS

6.6.1 Press the CALIBRATION key on the Service Menu Screen to bring up
the Calibration Menu Screen.
6.6.2 Remove the oxygen sensor from the valve dome adapter, and remove
the oxygen sensor capsule from the oxygen sensor housing.
( ) 6.6.3 When the "OFFSET O
(displayed in left column) are as close as possible to each other with a
difference not greater than 8, press the O
new offset values are stored.
NOTE:
6.6.4 Put the oxygen sensor capsule into the oxygen sensor housing.
6.6.5 Disconnect the Baromed breathing pressure sensor line from the
absorber.
6.6.6 This step intentionally left blank.
6.6.7 Connect a test fixture and digital pressure manometer to the breathing
pressure sensor line.
6.6.8 Pressurize the circuit to 60 cm H
6.6.9 The "PRESSURE SPAN (60 cm H
465 and 519.
( ) 6.6.10 Press the BAROMED key to store the reading. The following message
should be displayed: "PRESSURE SPAN READING STORED".
6.6.11 Release the pressure, disconnect the manometer and test fixture, and
reconnect the breathing pressure sensor line to the absorber.
6.6.12 Press the EXIT key to exit the Calibration Screen.
6.6.13 Press the EXIT key to exit the Service Menu Screen.
Rev. Y
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CELL A" and "OFFSET O
2
The higher the offset, the higher the calculated oxygen
concentration at higher oxygen concentrations.
6-7
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PMC PROCEDURE (continued)
2
MED key and verify that the
2
O.
2
O)" reading should display between
2
CELL B" readings