Table of Contents
Advertisement
NM3
NOTE: Before attempting a span calibration, perform the following accuracy
5.6.4
Rev. G
RETURN TO THIS MANUAL'S TABLE OF CONTENTS
ADJUSTMENT AND CALIBRATION PROCEDURES (continued)
The length of time that the sensor takes to calibrate
depends on the gas mixture to which the sensor had been
exposed prior to calibration. If the sensor had been
exposed to 21% oxygen for greater than one minute,
calibration can take as little as 10 seconds. If the sensor
had been exposed to higher concentrations of oxygen,
calibration may last up to 50 seconds. Typically,
calibration will last less than 30 seconds.
5.6.3.4
When calibration is completed, the LED indicator on the
O
CAL key will extinguish, and the three dashes in the
2
display window will be replaced by the currently sensed
oxygen concentration.
test to determine whether calibration is necessary.
Multispec Accuracy Test:
5.6.4.1
Mount the calibration gas adapter on a gas cylinder
containing a certified sample of known accuracy.
NOTE:
Do not use the calibration gas cylinder, NAD Part No.
4110599 or 4110599-001, to perform the accuracy test.
5.6.4.2
Set the System Power switch to ON.
5.6.4.3
Remove the oxygen sensor from the inspiratory valve to
expose the sensor capsule to ambient air.
5.6.4.4
Allow the multispec analyzer to warm up to its full
accuracy mode (the AGT WARMUP message will no
longer appear on the alarm CRT).
5.6.4.5
Connect the output of the calibration gas adapter to the
sample line at the patient interface panel as shown in
Figure 5-7. Make sure that the Luer-lock connections are
tight.
5.6.4.6
Set the calibration gas flow to 250 ml/min.
5-19
RETURN TO CD-ROM TABLE OF CONTENTS
Advertisement
Table of Contents
Troubleshooting
