Parker Sentinel - User Adjustable Set Points

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| User’s Manual
Sentinel
™
3.6 User Adjustable Set Points
The following settings are adjustable within the IQAN:
• Moisture high limit
• Sample rate
• Moisture set point (low limit)
• Temperature
• Unit selector
3.6.1 Moisture Level
The oil moisture level is measured by a relative humidity sensor and is reported as a percentage. When
saturation is 100%, the oil contains the maximum amount of water that can be dissolved in the oil (any excess
seen is free water). The low moisture level is the lowest level that is desired. This is determined by the application
and oil in use. The lower the set point, the longer the Sentinel takes to reach this moisture level of saturation. The
high moisture level is the point at which the Sentinel mode of operation will stay on. This combination creates an
acceptable window of moisture below saturation.
The default low moisture level is 25% of saturation; The default high moisture level is 75% of saturation.
The maximum amount of water that is dissolved is dependent on the temperature and the type of oil. The
moisture level should always be maintained below saturation at all time to avoid system damage.
3.6.2 Temperature
The temperature set point is the point to which the oil is heated during the dehydration process.
The default value is 130° F
The maximum allowable temperature is oil dependent. Consult the oil specifications to avoid decrease
life or damage.
3.6.3 Sample Rate
The sample rate is the duration between sampling when the machine is set to Sentinel mode.
The default value is 120 minutes.
3.7 Auto Condensate Drain
When the auto condensate is selected from the set up screen, see section 4.6, the water collected in the
condensate tank will automatically drain when full. If the auto condensate is not selected a manual drain will be
required and the Sentinel will shut off when the condensate tank is full.
3.8 Vacuum Purge
A vacuum purge cycle runs the vacuum pump while no oil is taken into
the Sentinel. This purge cycle is preformed so that any moisture in the
vacuum pump is driven out and the integrity of the pump is maintained.
Press the left arrow key to cancel the vacuum purge.
3.9 Run Empty
The run empty cycle pumps any remaining oil out of the vacuum
chamber.