Shel lab SVAC9-2, Инструкция по установке и эксплуатации, Страница: 33 / 46

33 | P a g e
OPERATION
P
UT THE
C
HAMBER
U
NDER
V
ACUUM
Procedure 1: Vacuuming down with a pump installed in the vacuum cabinet.
Vacuum Down
1
Turn the oven Vent Valve control to the closed position (all the way
clockwise)
2 Turn the Vacuum Valve control to the closed position (all the way
clockwise), if it is not already closed. Note: Always make sure the
Vacuum and Vent valves are closed prior to applying vacuum to
the chamber. This protects the vacuum supply system from
damage.
3
Place the Vacuum Power switch in the ( I )
ON position to power the vacuum pump.
4
Open the oven Vacuum Valve by turning it all the way
counterclockwise to bring oven chamber under vacuum
draw.
Hold at Vacuum
5
Keep the oven chamber under vacuum throughout the duration of
your baking application to evacuate outgassed byproducts. The
achievable vacuum level is dependent on the vacuum supply
efficiency and volume of outgassed byproducts.
Restore Atmosphere to the Oven Chamber
6
Turn the Vacuum Valve control back to the closed position
(clockwise) to protect the vacuum pump from exposure to
streaming atmosphere.
7
Place the Vacuum Power switch in the O (OFF) position
to turn off the vacuum pump.
8
Slowly turn the Vent Valve control to the open position to
reintroduce atmosphere or introduce a purge gas (15 psi
max.) into the oven chamber.
VENT
VACUUM
VACUUM
VENT
VACUUM