User's Manual

6.3.2 Standard calibration

1) The 3L calibration pump and pulmonary function testing instrument are connected,

select in the software "3L", click the upper right corner of the "standard" button, click

"Start" button, enter the standard monitor calibration measurement page.

2) After entering the environment information in the upper right corner, click "New Test"

to start the measurement, use the 3L calibration pump to smoothly move the

calibration pump handle, do not pause during a single push or pull, and ensure that

each push and pull is in place. "The number of exhalation and inhalation push-pull

times is reached, the system can automatically prompt to stop the operation", then the

push-pull calibration pump will stop after returning to its original position.

3) If the relative 3L error exceeds ±10%, please repeat this step and re-calibrate.

Special reminder, if the calibration fails, the calibration needs to be repeated until the

calibration is passed.

After the daily calibration is completed, if you start to re-calibrate, it will prompt "

The calibration has been determined today, whether to re-calibration?"

4) Click the "Return" button in the upper left corner to exit the calibration.

Figure 6 Calibration test interface