Fluke Biomedical VT Mobile Getting Started - Manual (Page 24)

VT MOBILE
Getting Started Manual
14
Verifying Oxygen Sensor Calibration
Verify the oxygen sensor calibration at the beginning of
any day during which you expect to measure oxygen
concentrations. Use the following verification procedure:
1. Connect the Oxygen Sensor as shown in Figure 9.
2. Introduce a 10 lpm or greater flow of 100% oxygen
through the Oxygen Sensor “T”.
3. Press P to access the O2 display.
4. Ensure that the O2 screen oxygen concentration is
100 % ± 2 % of full scale. If the concentration is less
than 98 %, perform the oxygen sensor calibration as
described below.
Replace the oxygen sensor after one year (or longer if no
replacement message appears during calibration.)
Note
The Oxygen Sensor is not calibrated at the
factory.
Calibrating the Oxygen Sensor
Calibrating the Oxygen Sensor improves pressure
compensation for barometric and airway pressure
changes.
1. Press P to display the Oxygen measurement
screen.
2. Press G to access the Oxygen calibration screen.
3. Connect the High-Flow Sensor and then apply dry air
(20.9 % oxygen) at 10 lpm to either side of the
sensor.
4. Press F twice to access the Calibration screen.
Wait for the two-minute timer to count down.
5. Apply 100 % oxygen at 10 lpm.
6. Press G twice and then press F once to access
the Calibration screen.
7. After the two-minute interval, the Oxygen
measurement screen appears and the calibration is
complete.