Chapter 8: Testing
Tranquility Quest Plus CPAP System Service Manual
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CRC Test Procedure
(Optional; to be used if CPAP unit is equipped with a CRC)
1.
Using the up and down arrows on the CRC, set the pressure
control to the settings in the following table and verify that the
pressure readings on the manometer are within the specified
tolerances. Note that there will be a 3 second delay between the
pressure setting and the actual pressure change. Record the
results.
Display Setting (cm H
2
O) Pressure Reading (cm H
2
O)
18
17.7 to 18.3
15
14.7 to 15.3
9
8.7 to 9.3
6
5.7 to 6.3
3 2.7 to 3.3
2.
Set the CRC to 20 cm H
2
O. Press the M button twice on the CRC
to select the ramp mode. Set the ramp time to 10 minutes. Press the
ramp button on the front of the CPAP unit. Verify that the amber
LED is lit and that the pressure drops to approximately 3.0 cm H
2
O.
The pressure will increase over the specified time period until the
pressure setting is reached. Verify at least 1 cm H
2
O in pressure
change in ramp operation.
3.
Turn the units main power switch off.
4.
Disconnect the CPAP remote from the 7400.
8.3 Clinical Remote Control Testing
(Model 1703)
Equipment and Setup:
1. Plug the 9 VDC Power Supply into the Model 1703 Clinical
Remote Control (CRC).
2. Connect the Optical Interface cable to the CPAP unit. It will
lock into place. Turn the power onto the unit.
3. Observe which side of the optical interface plug has the red
LED.
4. Plug the optical cable into the CRC. Make sure that the red
LED’s DO NOT match up. The display on the remote will
read CPAP.
5. Connect the manometer to the occluded test orifice and the
test orifice to the unit.