IV
-10
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
IV
: Operation
The Simulated Flow mode of the Hale
Foammaster system allows the operator to
operate the foam pump without
discharging water through a foam capable
discharge or when the flowsensor is not
functioning. The simulated flow mode is
used for draining the foam tank for
cleaning, checking calibration of the
feedback sensor, verifying foam pump
operation or manually controlling foam
injection if the flowsensor malfunctions. The
factory default simulated flow rate is 150
GPM (568 LPM). The simulated flow rate
and the concentrate injection percentage
rate can be set by using the display
readout and the rate adjustment buttons
on the control unit while in simulated flow
mode. The simulated flow function provides
manual operation of the foam injection
system required by NFPA standards.
CAUTION:
When operating the Hale
FoamMaster in Simulated Flow mode an
outlet for the foam concentrate must be
provided to prevent excessive pressure
buildup in discharge piping or hoses.
SIMULATED FLOW OPERATION
Use the following procedure to operate the
Hale FoamMaster system using simulated
flow:
1. Locate the bypass hose and uncoil
to place the end into a suitable
container to collect the foam
concentrate.
2. Place the Hale Foammaster system
BYPASS valve in the BYPASS position.
3. Energize apparatus electrical system
and turn Hale Foammaster power switch
to ON.
4. When the Hale FoamMaster is in the
standby mode,
FLOW
LED lit, depress
and release the
é
and
ê
buttons at the
same time. The display will show "
S 150"
(or other pre-set default value) and the
FLOW
LED will be lit. (see figure 4-9)
5. Depress the
ON
button. The ON
button will light and the foam pump will
begin running. Foam concentrate will
flow out of the end of the bypass hose.
6. To end simulated flow operation, first
depress the
ON
button to stop the foam
pump.
7. Press
SELECT DISPLAY
button until the
FLOW
LED is lit.
Figure 4-9. Simulated Flow Operation Display
SIMULTANEOUSLY
PRESS AND RELEASE
ENTERING SIMULATED FLOW MODE
SIMULATED FLOW MODE DISPLAY
