Vyaire VELA, Руководство по обслуживанию

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Chapter 6: Calibration Procedure
6-5
33373-001 Version A
NOTE
Before calibrating the FIO2 monitor, verify that the altitude is set correctly and the vent has been
running for a minimum of 30 minutes, to ensure that the sensor is at the proper operating
temperature.
The FiO
2
monitor calibration is located in the UVT screen. You must be in UVT mode for at least
30 seconds prior to attempting the FIO2 monitor calibration; if you do not wait for the full
30-second warm up time, the sensor will not calibrate.
6.2.9 FiO2 Monitor Calibration
1. Connect 50 PSIG O2 source to the high pressure O2 inlet assembly
2. Ent
er “Extended Functions” screen and select “Vent Setup”
3. Select
“FiO2 Monitor Enable” only if “FiO2 Monitor Disable” is showing
4.
Select exit and return to “Extended Functions” screen.
5.
Select the “FiO2 monitor Calibration” button and perform a complete calibration of both the
ambient and the 100% calibrations. This may take 3
–5 minutes each.
6.2.10 Blender FIO2 Calibration
1. Make sure the ventilator is in normal operating mode before adjusting the blender. The switch
#1 on the SW900 must be in the “OFF” position.
2. Connect 50 PSIG O2 source to high pressure inlet assembly.
3. Attach a test circuit made of reusable patient tubing with the test lung p/n 33754
4. Power up ventilator and make the following adjustments to settings on front panel.
Set Ventilator parameters as follows:
Mode: Volume Assist Control
Volume: 500 ml
Peak Flow 60 lpm
Breath Rate 12 bpm
PEEP 5 cmH
2
O
Adjust all other controls and alarm limits out of the range of operation to
either “OFF” or min/max
settings for alarms.
5. Set the O2 setting for 30% on front control panel and allow the reading to settle for 1 minute.
6. On the side of the blender there are five solenoids and five needle valves (see Figure 3-11).
Using a 3/16
th
-nut driver, loosen the top jam nut on the 5 LPM needle valve in the top position of
the blender aluminum block. Using a 1/16
th
-inch hex-head wrench, insert the tip through the
hole in the jam nut and adjust the needle to either increase (counter clockwise) or decrease
(clockwise) the FIO2 value to achieve a reading of 30% ± 1%.
The adjustment must be made
within the first 1.5 minutes of setting the FiO2 of 30% .
7. Tighten the jam nut and allow reading to settle within Specifications.
8. Set the O2 setting for 90% on the front control panel and allow reading to settle for 1 minute.
9. Repeat above procedure, adjusting the 15 LPM needle valve, this valve is the second valve
from the top of the blender aluminum block. Adjust it as mentioned above for the monitored
value of 90% ± 1%.