Geotech PRS Installation And Operation Manual page 9

PRS System Control Panel (Optional)
The air-driven pump controller is the core component of the Product Recovery System.
The controller uses two timers to vary the pumping rate of the system, independently
controlling the discharge time and the recharge time of the pump. A clean, dry air source
that can deliver one cubic foot per minute (cfm) at 90 PSI (or .03 cmm at 6 bar) will
adequately allow the controller to drive one pump. Up to four pumps can be run from one
controller with a commercial air supply of at least 4 CFM (.11 CMM) at 90 PSI (6 bar).
The PRS Control Panel comes equipped with a Tankfull Shut-off feature. The Tankfull
Shut-off incorporates a manual reset button as an additional safety feature. When the
product recovery tank becomes full, the Tankfull Shut-off Sensor shuts off the system. The
system must be manually reset in order to resume operation.
The Tankfull indicator is green when the system is operational and is black when the
system is off. The recovery tank must be emptied and the control panel manually reset
before the system can be reactivated, and the indicator to show green.
Figure 1-5: PRS System Control Panel
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