IV
-7
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
IV
: Operation
Priming Error
In the event there is no feedback signal
being received when the foam pump is
started, indicationg a lack of foam
concentrate flow, the foam pump motor
will run at full speed to attempt to establish
foam concentrate flow. If the system
operates for a period of 30 seconds without
a feedback signal the system will go to the
standby mode and the display will flash
“
noPri” (no prime) indicating there is no
foam concentrate flow. (See figure 4-7)
High Ambient Temperature
In the event the Hale FoamMaster system is
operating in an environment of excessive
ambient temperature the display will show
“
hot” to indicate this situation (see figure 4-
8). If the circuitry in the Hale FoamMaster
system is being affected by a drop in power
supply voltage the display will show “
LobAt”
to indicate this situation.
NOTE:
This is not necessarily an
indication of apparatus battery level or
condition. This is only an indication of
adverse operating conditions. For
instance a bad battery cable can
cause the system to see low power even
though the batteries are fully charged.
In either case the system will continue to run
with these adverse conditions. If conditions
deteroriate to the point of potential system
damage due to heat or low power the
system will return to the standby and error
message will remain until
ON
is pushed
again.
Figure 4-7. Priming Error Display
Figure 4-8. High Temperature and Low
Battery Display
