| User’s Manual
Sentinel
™
8
3.3.1 Air Flow
Air moves through the unit as a result of the vacuum pump. Atmospheric air enters through a desiccant breather,
flows through a needle valve, into the vacuum chamber where the mass transfer of water takes place. The
saturated air then exhausts through a coalescing element, to eliminate any oil mist, before traveling through the
vacuum pump. Finally, the air is exhausted through the condensate tank where the free water falls out.
3.3.2 Oil Flow
Oil enters the back of the unit through the inlet port. The inlet control valve is energized during the filling cycle.
Once through the heater tube, the oil enters a diffuser where the maximum surface area is exposed while
minimizing oil carry over. At this point in the cycle, any water in the oil is flashed off and enters the drier air
above. The oil then falls into the sump where it is circulated back through the heater tube and vacuum chamber
until the temperature set point is reached. Once the temperature set point is reached the oil circulates in the
chamber for a period that optimizes the water removal rate and energy usage. At the end of this period, the oil is
returned via the return port on the back of the unit.
3.3.3 Water Flow
Water in the oil is transferred to the air where it is exhausted and trapped in the condensate tank. Roughly 20%
of the water is retained and 80% is exhausted via the exhaust port on the rear of the unit.
3.4 Controls
The controls for the Sentinel are located across the top of
the unit as shown.
See chapter 4 “Operation” on how to
use the control panel.
A. The main power switch provides power to the unit.
B. The IQAN, a PLC control screen, is used to operate
all functions of the machine.
C. The phase selector is used when the IQAN screen
displays a phase fail fault. In this instance the phase
selector must be switched for proper operation.
3.5 Hose Connections
1. Hydraulic Outlet
2. Vacuum Exhaust
3. Hydraulic Inlet
4. Water Drain
2
3
4
1
A
B
C
