Chapter 3 Maintenance and Troubleshooting
3–2
L2707
Technical Reference Manual
Vmax Encore
FRC SYRINGE VERIFY PROCEDURE
The FRC Syringe Verify Procedure can be used to check the accuracy and integrity of the entire
Gas Dilution FRC test circuit.
•
Perform a Mass Flow Sensor calibration and an analyzer calibration before proceeding with
the FRC Syringe Verify Procedure.
•
After the analyzer calibration, make sure the sample line is re-connected to the flow sensor
port.
•
The 100% Oxygen cylinder must be turned on completely and the secondary pressure
gauge set between 50–60 PSI (345–414 k Pa).
1.
Select
5 Pulmonary Function
on the Vmax Main menu. Next, select
A Lung Volumes
on
the Pulmonary Function menu to display the Lung Volumes Test screen.
2.
Select
Syringe Verify
from the Test menu. The FRC Verify Calibration Setup Box is dis-
played.
3.
Enter the FRC Volume of the calibration syringe to be used in the FRC Syringe Volume Box.
The FRC volume should be noted on the label of the syringe.
Note:
Do not adjust the FRC Factor at this time.
4.
Select
F3
to store the syringe volume and return to the Lung Volumes Test Screen.
5.
Select
F1
on the Lung Volumes Test Screen to begin the test procedure. The Oxygen Flush
Dialog Box is displayed.
6.
Select
Space
to flush the inspired test gas tubing with 100% oxygen.
7.
Position the piston shaft at the etched line and connect the syringe to the Mass Flow Sensor
using the FRC Adapter. (See Figure 3-1, “Calibration Syringe Adjustment/Attachment for
FRC Verify.”)
Summary of Contents for Vmax Encore
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