NOTE:
For several of the operational verification tests we have used the
calibration analyzer series RT-200 manufactured by Timemeter
Instrument Corporation. However any flow measuring instrument
capable of reading flows up to 120 LPM may be used.
Gas
Input Pressure Alarm Test:
1.
Adjust the pressure of input air source to 50 psi.
2.
Reduce the pressure of the input
02
source slowly and note
the pressure at which the low input pressure alarm sounds.
Verify that the alarm sounds when the pressure of the
source is 31
+
3 psi.
3.
Adjust the pressure on the
O2 side to 50 psi.
4.
Reduce the pressure on the Air source side slowly and verify
that the alarm sounds when the pressure drops to around 31
+
3 psi. If the low gas input pressure alarm fails to sound,
-
check that the alarm hole located and marked mixer
audible alarm on the rear of the panel is not occluded. The
alarm may not sound if contaminated with moisture from
the input sources. Unscrew the alarm by turning counter-
clockwise and dry by blowing out the air gently or leaving it
open until dry. Do not handle the reed in the alarm. It is
easily damaged by handling.
TEST
1
CALIBRATION PROCEDURE
Adjust the front panel controls to the following standard settings.
Return to the standard settings after each test unless otherwise
stated.
Power
IMcrde
Fi02
Flow
I .T.
Resp. Rate
Peak Insp. Press (PIP)
:
Apnea time
Nebulizer
Trigger Level
ON
AIC
.60
20
LPM
1.0 Sec
20
BPMPEEP:O cmH20
OFF (Fully counter-clockwise)
LOW
CPAP ALARM
OFF
-10
cmH20
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