Venting Connection - vacuubrand PC301 VARIO select Series Instructions For Use Manual

®
VACUU·SELECT
sensor with venting
valve
Position of venting
connection
20901118_EN-US_PC301x VARIO select Serie_V1.3_100720

4.4.4 Venting connection

DANGER
Risk of explosion by venting with air.
Depending on the application, venting can cause explo-
sive mixtures to form or other hazardous situations to
arise.
Never vent processes with air which could form an
Ø
explosive mixture.
In the case of flammable substances, use only inert
Ø
gas for venting, e.g., nitrogen
(max. 1.2 bar/900 Torr abs.).
If there is not direct venting connection on the vacuum pump,
pumping unit or controller, you can connect a separate venting
valve, e.g., to a VACUU·SELECT
Vent with ambient air
5 Only applicable to sensors with an integrated venting valve.
Installation and connection
®
sensor.
Venting connection (b) for a VACUU·SE-
®
LECT Sensor is described below.
Alternatively you can use a larger valve, e.g., a
VB M-B (#20674217), for faster venting.
5
For venting (b) with ambient air, nothing needs
to be connected to sensor (a).
35