We provide a calibration device with small volume, light weight and easy to use for users, it is a manual 2L / 3L calibration syringe, It can daily calibrate and test the Spirometer with 2L/3L calibration function, high in accuracy and good in tightness.
Calibrate the Spirometer with 2L/3L calibration function.
1）Volume range: 3 L
2）Volume accuracy: ± 0.4 %
3）Volume range: 2 L
4）Volume accuracy: ± 0.4 %
5）Atmospheric pressure, temperature and humidity of the working environment:800 hPa～l060 hPa,0 ℃～+50 ℃,30%～100% RH
6）Atmospheric pressure, temperature and humidity of the range environment:700 hPa～1060 hPa,-10 ℃～+55 ℃,≤100%
7）Tightness: when the internal pressure is 8 kPa, the air leakage is less than 3 L/min.