PBA100 Rev0407
18
RPM Mode Operation
In the RPM mode of operation the RPM LED will be on. The PumpBoss will
maintain a constant engine RPM.
The pump discharge pressure can vary but, as a safety feature, the PumpBoss limits
the increase in pressure to 30 PSI over the last established PSI value. As the discharge
pressure approaches this limit the PumpBoss will automatically lower the RPM to
prevent a high pressure surge. The RPM LED will blink as the PumpBoss sets a lower
RPM. This lower RPM will be the new operating RPM setting.
Note: When changing from pressure mode to RPM mode the RPM setting
will be the RPM that the pump was operating at in pressure mode.
1. Press and hold RPM mode button for 3 seconds.
Result: RPM LED goes on.
2. Press PRESETand/or rotate control knob to select RPM setting.
Result: Message display shows RPM setting, engine RPM changes.
3. Press IDLE button after operations to bring engine to idle RPM.
Result: Message display shows date and time, engine at idle RPM.
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