vacuubrand MD 12C NT VARIO o.C., Инструкция по эксплуатации

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34 20901544_E12C+16C_NT Vsel_V1.2_260922
Installation and connection
4.4.3 4.4.3 Venting connection (option) Venting connection (option)
DANGER 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
explosive mixture.
>
In the case of flammable substances, use
only inert gas for venting, e. g., nitrogen
(max. 1.2 bar/900 Torr abs.).
The diaphragm pump and controller have
no no
direct ventilation
connection. You can connect different venting valves, e. g., the
supplied
VACUU·SELECT
®
Sensor with integral venting valve.
(b)
The ventilation connection (b) for a
VACUU·SELECT
®
Sensor is described
below.
Alternatively you can use a larger valve,
e. g., a VB M-B (#20674217) for faster
venting.
Vent with ambient air
1
For venting (b) with ambient air, nothing needs to be connected to
the sensor (a) .
Vent with inert gas – connect venting valve
1
Required connection material: Hose for hose nozzle, e. g., sili ‑
cone tube 4/5 mm
>
Attach hose (c) to the connection of venting valve (b) and con‑
nect inert gas (max. 1.2 bar/900 Torr, abs.).
5
Venting valve with hose for venting with inert gas
2
.
1 Not applicable to sensors without an integrated venting valve .
2 Avoid overpressure .
(c) (b)
(a) (a)
(b)
(a) (a)
VACUU·SELECT
®
Sensor with venting
valve