The preset switch should be pressed to return to the Mean value
anytime the Mean value of presssure is to displayed. Otherwise the
machine will return to the Mean value after the 30 second time has
elapsed.
1.
Press Peak Pressure button located near the pressure display.
Verify that the displayed value is the peak pressure (by
comparing to manometer) and that it is displayed for 30
seconds before the display returns to the Mean value.
2.
Press switch for Base Pressure and verify that the pressure
displayed is the Base Pressure (by comparing to the
manometer) and that it is displayed for a period of 30 seconds
before it returns to the Mean value.
3. Depress the Base and Peak switches one after the other in
sequence and verify that the display changes to the value of
the last switch depressed even before the 30 second time has
elapsed.
20. MODE SELECTOR
Rotate the switch through all the modes and verify the unit's
operation in the various modes.
21. TRIGGER LEVEL
1.
Turn the mode selector switch to Spontaneous mode or SIMV.
2.
Shift the trigger level manually so as to pass through the
manometer needle.
3.
Verify that the effort LED is lit up momentarily each time the
needle passes through the trigger indicator.
4.
Turn the mode selector switch to A/C mode.
5.
Adjust Respiratory Rate to 1 BPM.
6.
Repeat Step
2
and verify that the machine gives a breath each
time the needle passes through the trigger sensor.
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