Pressure Governor Flashcards
The PRO-S will operate in one of ____ mode, Pressure or RPM.
2
When in pressure mode, discharge is monitored and PSI changes are limited to how many PSI?
30
The Fire Research PRO-S pressure will maintain a steady pump discharge pressure by controlling the _______ or maintain a selected engine RPM.
Engine speed
While in Pressure Mode, constant _____ will be maintained.
Discharge pressure
What color is the “pre-set” button?
Green
What color is the “idle” button?
RED
The ____ RPM or Pressure LED is on to indicate operation in the RPM or Pressure mode.
Green
What color is the Pressure Governor “increase” and “decrease” button for pressure or rpm?
Yellow
When switching the water supply source from tank to hydrant, draft to hydrant, or draft to relay, water flow through the pump can become turbulent and the positive pressure from these sources may generate a sudden pressure surge. It is recommended that the PRO-S be set in _____ mode before changing the water supply source.
RPM
On power, the PRO-S will be in the _____ mode of operation
Pressure
The minimum pump discharge PSI must be greater than ____ PSI for the PRO-S to take control.
15
When pressing the increase/decrease button momentary, increase/decrease by how many PSI?
1`
RPM Mode: press and hold the button for more than ___ seconds and the RPM setting will change by ____ RPM TWICE and then by ____ RPM until the button is released.
2 seconds
50
100
PSI Mode: press and hold the button for more than ___ seconds and the pressure setting will change by ___ PSI TWICE and then by ____ P SI until the button is released.
2 seconds
5 psi
10 psi
When the PRO-S setting display shows a value, press and hold the mode button for ___ seconds and PRO-S changes modes.
3
When switching between RPM and Pressure, pressure and RPM is limited to what increase?
None
If the PSI drops below 45 but stays above 15 the PRO-S will go into a prime cycle and set at?
1,100 RPM
In order to pump over 300 psi, the Pressor Governor must be operated in what mode?
Pressure
No or Low Water Supply: If the discharge pressure drops below 45 PSI but stays above 15 PSI the PRO-S will go into a prime cycle.
It will set the engine RPM to 1,100 RPM. If the pressure does not rise above ___ psi in ___ seconds, the PRO-S will set the engine at Idle RPM.
45 psi in 7 seconds
When setting Program Preset Value the SETTING display must show ___ before changing the preset.
Idle
As the discharge pressure approaches this maximum surge PSI, the PRO-S will automatically lower the RPM to prevent a high-pressure surge.
The RPM LED will _____ as the PRO-S sets a lower RPM
Blink
When changing from pressure mode to RPM mode, RPM setting will be set to ______?
RPM pump was operating at in pressure mode
In order to pump pressures over _____ psi, the governor must be operated in the RPM mode.
300 psi
What year of engines have the Pressure Governor?
03-05’
