PRO-S Rev1104
4
INTRODUCTION
Overview
The Fire Research PRO-S pressure governor uses state of the art programmable
microprocessor technology. It will maintain a steady pump discharge pressure by
controlling the engine speed or maintain a selected engine RPM. The PRO-S will
operate in one of two modes, pressure or RPM.
In pressure mode the PRO-S maintains a constant pump discharge pressure. The
discharge pressure is monitored and compared to the selected pressure setting, the
engine RPM is varied to keep the discharge pressure at the selected setting.
In RPM mode the PRO-S maintains a constant engine RPM. The pump discharge
pressure is monitored, it can vary but will be limited to an increase of 30 PSI. If the
discharge pressure increases 30 PSI, the pressure governor will automatically lower
the engine RPM to reduce the discharge pressure.
All controls and indicators are located on the front of the control module.
Features
Power Up in Pressure Mode
Automatic Regulation of Pump Discharge Pressure
Manual Control of Pressure or Engine RPM Settings
Field Programmable Presets
Diagnostic Capabilities
No Pressure or RPM Variation When Changing Modes
Limits Increase of Pressure When in RPM Mode
Recognition of No Water Condition With Automatic Response
Interlock Signal Recognition
Return to Engine Idle With the Push of a Button
High Idle Kit (Optional)
24 VDC (Optional)
KPa (Optional)
