6.
Verify lnspiratory Time for setting of 1.0 sec, 2.0 sec, and 3.0
sec. (tolerance range +.I).
NOTE: For tolerance range refer to Test Record sheet.
6.
A/C SIGH
1.
Connect RT-200 to main flow of unit.
2. Adjust RT-200 to read lnspiratory Time.
3. Set lnspiratory Time to 2.0
sec
.
4.
Note the lnspiratory Time readout on the RT-200.
NOTE: The unit gives an
AIC
Sigh in its first breath after switching
into this mode and thereafter every
100th breath is an
A/C
Sigh. Othe~lise in this mode the unit functions the same as
in
AIC
mode.
5.
Switch the mode control to A/C Sigh.
6.
Note the lnspiratory Time readout of the RT-200 in the first
breath.
7.
Note the lnspiratory Time in its regular breaths.
8.
Verify that the lnspiratory Time is 1.5 times longer in the A/C
Sigh breath than the set value of I.T.
9.
Note also that the Tidal Volume display flashes and displays a
larger (1.5 times) Tidal Volume in the breath that delivers an
A/C Sigh breath.
10. Allow the unit to cycle and verify that every 100th breaths is an
'
A/C Sigh breath.
7.
NEBULIZER
1.
Depress nebulizer switch.
2.
Connect a standard pressure gauge at the nebulizer outlet.
Range:
0
-
50 psi
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