46
4.
Pull the piston all the way out at a steady speed of 1.5 - 5L/s.
5.
Push the piston all the way in again with the same speed.
6.
Repeat step 4 and 5 for more than three times until the Ex-M and In-M
both show 3, the spirometer can calculate the average value of flow and
calibration factor.
7.
Press “Start” to run the calibration test again if needed or tap on
“Calibration.” to update the calibration factor.
8.
Once the pull and push
＜
3 times, must not calibrate. You will need to
run the Calibration again.
9.
When “Diff” item display
＞
10% or
＜
-10%, must not calibrate. You will
need to run the Calibration again.
10. When the test value is discrete, indicate the consistency is bad and ensure
not leak between the disposable flow transducer and syringe.
11. If there is no calibration value or the calibration is done, please run the
calibration after test.
Attention:
Calibration is an important part of good laboratory practice to ensure
the device working properly and testing results are accurate.
