23
Installation and Operation Manual
System 2000
FLOWMETER CALIBRATION
NOTE: It is critical that an accurate flow measuring
device be used to measure the water flow to
calibrate the flowmeter(s). Use a suitable size
smooth bore nozzle and an accurate Pitot Gauge
instrument. Hand-held pitot gauges are usually not
very accurate. At the first available opportunity,
make sure the system is calibrated with an accurate
flow measuring device. Determine the water flow
normally expected from that flowmeter discharge
outlet. For example, actually establish a flow of
150 gpm [568 L/min.] of water through a nozzle and
Pitot system.
Enter Calibration and Setup mode using the method
previously described. Press the “Select” button and
illuminate the light under “FLOW”. The current water
flow rate will be displayed. Press the or button to
set the reading to match the actual flow calculated from
the Pitot gauge reading. Decrease fire pump pressure
by approximately 1/2 and recalculate water flow rate.
Verify that reading on the Digital Display Control Module
is the same as the calculated value. Stop the water flow
when the reading adjustments are completed.
To lock the settings, exit Calibration and Setup mode
by depressing and releasing the switch inside the cover
screw opening. The display will show a zero until any
function button is pressed.
SIMULATED FLOW
The default Simulated Flow value should be adjusted
while operating in Calibration and Setup mode.
Enter Calibration and Setup Mode using the method
previously described. Press the SELECT button until
the light under FLOW is illuminated. Pressing both the
and buttons simultaneously will display the
default simulated flow reading. Adjust the setting by
pressing the or buttons to set the desired rate,
i.e., “ 100”. After the rate has been set, press the
and buttons simultaneously again to return to
Calibration and Setup mode.
This setting will remain in the computer memory and be
the default rate for all future Simulated Flow operations.
Exit Calibration and Setup mode as previously described.
FOAM CONCENTRATE INJECTION RATE
When power is supplied to the FoamPro system, the
foam concentrate injection rate in memory will be the
default injection rate setting. The default concentrate
injection rate can be adjusted by entering Calibration
and Setup mode as previously described.
Use the SELECT button to illuminate the lamp
below “%”. The display will show the current default
concentrate injection rate stored in the controller
memory as “PC x.x”. The or buttons can be used
to set the desired concentrate injection rate. Set this
rate to the foam concentrate injection rate used most
frequently in operation.
If using a dual-tank system, separate concentrate
injection rates can be set by selecting either tank “A”
or “B” on the electric selector switch or the manual
valve. The display will show PAx.x (Tank A) or Pbx.x
(Tank B) depending which tank is selected. Set the
desired injection rate using the or buttons. Using
the electric selector switch or the manual valve switch to
the other tank and set the desired injection rate for that
concentrate.
Exit the Calibration and Setup mode as
previously described.
FOAM PUMP CALIBRATION
Note: The viscosity of different foam concentrates
may have an effect on the amount of foam concentrate
that is injected into the water stream. When calibrating
the foam pump, use the foam concentrate that will be
used most frequently during normal operations. When
different viscosity foam concentrates are used, the
actual concentrate injection may vary by as much as
10%. When using the dual-tank system, each foam
concentrate should always be calibrated individually.
Select tank “A” or “B” on the electric selector switch or
the manual valve and calibrate the foam pump to each
tank separately with the following procedure.
Enter the Calibration and Setup Mode using the
method previously described. Press the SELECT button
to illuminate the light below TOTAL FOAM on the Digital
Display Control Module.
Figure 25. Foam Concentrate Collection
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