Shel lab SVAC9-2, Инструкция по установке и эксплуатации, Страница: 25 / 46

25 | P a g e
VENT
CONTROL OVERVIEW
Vent Valve
Located below the main control panel, this valve controls the chamber Vent Port (backfill inlet)
located in the vacuum plumbing cabinet.
•
In the open position, the chamber is exposed to external atmosphere through the intake
vent port located in the vacuum plumbing cabinet.
•
Optional: An inert or clean backfilling gas supply connected to the Vent Port will flow gas
from the pressurized supply to the oven chamber when the Vent Valve is open.
•
When the valve control is in the closed position (fully clockwise) the chamber is cut off from
external atmosphere and any purge gas supply.
o
The intake vent port must be closed before applying vacuum to the chamber .
Failure to do so may result in damage to the vacuum pump.
Vacuum Valve
Located below the main control panel and marked VACUUM.
•
In the open position (turn counterclockwise) this valve applies vacuum to the oven chamber
from an active supply source connected to the KF-25 fitting located in the cabinet.
•
In the closed position (turn fully clockwise) the valve closes off the supply of vacuum from
the cabinet KF-25 fitting.
VACUUM
Clockwise to Close