Manual

FoamLogix, Model 2.1A and 1.7AHP Class “A”
Electronic Foam Proportioning Systems
61
The value is in the same unit of measure as the
water ow. This totalized value may be reset - see
heading “Reset Function”.
For example, the display may show 9.5,
indicating 9.5 gallons (36 liters) of foam
concentrate have been used. (See Figure
37: “Display - Function Modes” on page 60.)
Bar Graph
The bar graph consists of a ten (10) LED array.
When the ON button is pressed the left-most LED
lights to indicate the system is ON and ready to
inject foam concentrate.
When water is owing, LEDs to the right on the bar
graph light indicating foam concen trate is being
injected. The amount of LEDs lighted provides an
indication of the approxi mate pump capacity being
used.
If water ow requirements exceed the capac ity of
the pumps ability to deliver foam con centrate, pump
speed increases to the maxi mum rate. All bar graph
LEDs light and the right-most LED ashes, warning
the operator that the system capacity is being
exceeded and is running “lean” on foam concentrate
percentage.
If the ow decreases such that the required
injection rate is less than the lowest rating of the
pump, pump spped decreases to its minimum
rate and the rst bar graph LED to the left ashes,
warning the operator that the system capacity
is being exceeded and is running “rich” on foam
concentrate percentage.
RESET FUNCTIONS
The totalized values for water and foam concen-
trate pumped are cleared from memory by
performing a RESET function.
Using the DISPLAY button (1 i), select either TOTAL
WATER or TOTAL FOAM.
By pressing and holding both the 2  and  buttons
at the same time, the value shown is cleared and the
display shows zero (0).
Additionally the totalized values for water and foam 3
concentrate reset to zero auto matically when the
apparatus power is turned OFF.
FOAM CONCENTRATE INJECTION RATE
When % FOAM is selected, the  and  buttons
respectively increase or decrease foam concen trate
percentage.
While operating in any function, with the excep-
tion of FLOW during simulated ow operation,
whenever the  or  buttons are momentarily
pressed, the display switches to the % FOAM
display and shows the current injection rate for 2
seconds.
In any display mode, if either the  or  button
is held down for a period of 2 seconds or more,
the injection rate value increases or decreases
accordingly. Once released, the display returns to
the last selected display after 2 seconds.
When a reset is performed in the % FOAM display
mode, the foam concentrate injection rate returns to
the default value.
WARNING MESSAGES
Several safety features are incorporated into
the Hale FoamLogix system to protect the foam
concentrate pump, electric motor and apparatus
wiring while maintaining personnel safety.
Messages appearing on the display alert the