Humboldt HM-4160 FlexPanels - Manual (Page 8)

Master Controller Functions
The Master Controller is shown in fig. 3 and fig. 4. The different sections of the
Controller are numbered to reference the drawings and the operation of each is
explained below.
This is the digital display, which allows you to read the current cell,
base or top pressures from up to 5 different cells, depending upon
your particular configuration.
To read a pressure, raise the toggle valve, located under the regulator
for which you wish to check the pressure (indicated by the second red
arrow) and the pressure will be displayed in the digital display. Only
one line can be read at a time.
These are the regulators and dial gauges for setting the air and vacuum
supply pressures to the FlexPanel. The Air Supply pressure regulator is
used to set incoming air pressures from an air compressor. It can be set
from 2-150 psi (14 - 1000 kpa), and the resulting air pressure is displayed
on the pressure gauge above the regulator. The regulator setting should
be set at least 5 psi (35 kpa) lower than the lowest pressure coming from
the air compressor.
The lower regulator controls the vacuum pressure supplied to the
FlexPanel, as well as to Section 4 of the control panel. An external
vacuum pump is required to supply vacuum to the control panel.
The gauge above the regulator displays the regulated vacuum.
This section controls the De-aired water tank. The top valve has two
input lines. One is connected to a vacuum pump and the other to a low
pressure regulator, (less than 5 psi), which has been preset at the factory.
The output goes to the top of the de-aired water tank. The lower valve
also has two input lines. One going to a drain or a container to collect
waste liquid and the other is connected to a water supply (tap water or
special permeate). The output is connected to the bottom side of the
De-aired water tank.
This section controls sources of water, compressed air and vacuum.
The top valve can be set to supply tap water or de-aired water to the
quick connect located below it. The bottom valve supplies a regulated
air pressure or regulated vacuum to the quick connect below it. The
air pressure is supplied by the same regulator that supplies air to the
de-aired water tank and the vacuum is regulated by the vacuum
regulator.
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