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Controlling Valves HPVA Series Operator’s Manual
4-2 Mar 2011
Controlling Valves
The nine valves are represent by numbered icons. You can open and close a valve by double-clicking
the left mouse button on the valve icon or by clicking the valve icon then pressing the space bar. Yel-
low indicates a closed valve and green indicates an open valve.

Do not open the vacuum valve when there is high pressure (pressure
greater than 1.5 bar) in the manifold. The software cannot control the
pressure in the manifold when the valves are manually operated.
The valves in the schematic are described below:
Valve Description
1 Analysis port valve
2 Vent valve
3 Manifold valve
4 Fine Vacuum valve
5 Course Vacuum valve
6 Adsorptive gas 1 valve
7 Adsorptive gas 2 valve
8 Helium gas valve
9 Degas port valve*
*Valve 9 cannot be opened and closed on the schematic window. It can be controlled only by the
switch on the instrument’s front panel. Press the switch up to open the valve or down to close the
valve.