Dado Lab QB1 - Leak Check - QB1 V5.0; Sampling Line Leak Check; Leak Check

14 | QB1 User Manual
Check the leak
Slowly let air enter the samplping line
Turn o the pump
Close the bypass valve
Sampling line leak check
QB1 V5.0 is equipped with a bypass valve that al-
lows to perform the leak check of the sampling line
as per regulations.
Leak check
Connect the sampling line
Turn on the pump
Close the sampling line
Open the bypass valve and adjust the vacuum to
about 0.5bar
6
Leak check - QB1 V5.0
bypass valve