Cleaning, Verifying oxygen sensor calibration – Fluke Biomedical VT Mobile User Manual
Page 62
VT MOBILE
Operators Manual
7-2
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ede09f.eps
Figure 7-1. Changing the Battery
Cleaning
Clean the Analyzer with a damp cloth on the exterior only. Use a solution of 70%
isopropyl alcohol. Fluke Biomedical does not recommend other solvents.
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 7-2.
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.
5. 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.