VACUUBRAND VACUU·CONTROL - Manual (Page 53)

Operation
53 BA-N°: 999279/17.10.2014
6.4.6 Venting the system (Vent)
DANGER
Danger of explosion when venting with air by
forming explosive mixtures.
Depending on the process venting can form explosive
mixtures.
>
Never vent processes with air which can form an
explosive mixture.
>
If necessary vent with inert gas (max. 1.2 bar abs.).
IMPORTANT! Certain process may cause pressure to build
up.
The “Vent” button is used to vent the system. A short click on this
button will momentarily vent the system as the process contin-
ues. Holding the vent button for longer than 2 seconds will cause
the system to be vented to atmospheric pressure and the pump
will stop running.
Momentarily venting
> Click on the “Vent” button less than 2 seconds.
5
Button momentarily marked,
5 venting impulse, venting valve opens momentarily
 short-term pressure increase.
Continuous venting
> Click on the “Vent” button longer than 2 seconds.
5 Button is marked as long as pressed,
5
symbol for venting valve is blinking,
5 venting valve open  continuous pressure increase until
atmospheric pressure.
>
When atmospheric pressure is reached, the venting valve
closes automatically.