VIASYS Vmax Encore - FRC Syringe Verify Procedure

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.”)