Hale 5.0 FoamLogix - Manual (Page 99)

IV
-5
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
IV
: Operation
concentrate have been used. (See
figure 4-4)
BARGRAPH
The bargraph (refer to figure 4-1) consists of
10 LEDs. When the ON button is pressed the
leftmost LED will light to indicate the system
is on and ready to inject foam concentrate.
When water is flowing LEDs to the right on
the bargraph will light indicating foam
concentrate is being injected. The amount
of LEDs lighted provides an indication of the
approximate pump capacity being used.
If water flow requirements exceed the
capacity of the pump to deliver foam
concentrate, the pump will run at maximum
rate. All bargraph LEDs light and the
rightmost LED flashes warning the operator
that the system capacity is being exceeded
and is running "lean" on foam concentrate
percentage.
If the flow decreases such that the required
injection rate is less than the lowest rating of
the pump, the pump will run at its minimum
rate and the first bargraph LED to the right
flashes so the operator will know the system
is running "rich" on foam percentage.
RESET FUNCTIONS
The totalized values for water and foam
concentrate pumped can be cleared from
memory by performing a RESET function.
Using the DISPLAY button, select either
TOTAL WATER or TOTAL FOAM. By pressing
and holding both the
é and ê buttons at
the same time, the value shown is cleared
and displayed as zero. Additionally the
totalized values for water and foam
concentrate reset to zero automatically
when the apparatus power is turned off.
FOAM CONCENTRATE INJECTION RATE
When % FOAM is selected, the
é and ê
buttons will respectively increase or
decrease foam concentrate percentage.
While operating in any function, with the
exception of FLOW during simulated flow
operation, whenever the
é or ê buttons
are momentarily pressed, the display will
switch to the % FOAM display and show the
current injection rate for 2 seconds. In any
display mode, if either the
é or ê button is
held down for a period of 2 seconds or
more, the injection rate value will increase
or decrease accordingly. Once released,
the display will return to the last selected
display after 2 seconds. When a reset
(pressing both the
é and ê buttons at the
same time) is performed in the % FOAM
display mode the foam concentrate
injection rate is returned 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 operator to adverse
conditions that could cause damage to
Hale FoamLogix system components, the
apparatus and cause personnel injury.
FLUSH
If the Hale FoamLogix system is equipped
with ADT, MDT
ΙΙ
or MST and the operating
controls for these selectors are in the FLUSH
position the foam pump motor will increase
to approximately 80% capacity. The system
will operate for 20 seconds when water is
Figure 4-4. Total Foam Display