Class1 FoamLogix 2.1A & 1.7AHP REV D - Manual (Page 73)

FoamLogix, Model 2.1A and 1.7AHP Class “A”
Electronic Foam Proportioning Systems 73
The sensor “sees” the target and sends this signal
to the control display, through the distribution box.
An indicator lamp on the sensor “flashes” as the
target passes the sensor. Depending on how much
foam is being pump determines the flashing speed,
which could be so fast that the indicator light actually
appears to be constant.
Bar Graph
The bar graph on the control display unit, indicates
the system capacity and is a good troubleshooting
tool.
If the display does not see foam feedback data
indicating foam is being pumped, the bar graph
lights all segments and “flashes.” The display runs
the pump fast attempting to prime it and achieve
the proper foam concentrate flow.
If the display does not receive data that foam
concentrate is flowing, it displays the “ No Pri”
error message, indicating no prime, and turns the
system OFF. Pressing ON starts the cycle again.
There must be water flow or the unit must be in the
simu lated flow mode. Operation of the bar graph
and no prime warnings are discussed in Section 4,
“Operation”.
Summary
Starting with the troubleshooting charts (see Figure
44: “Hale FoamLogix System Troubleshooting Flow
Diagram,” to show the flow data, a field problem
can be traced to a particular component for
replacement.
FoamLogix replacement parts are “plug and-
play” type devices that do not require specialized
equipment to service. Normal water flow and
foam calibration is usually necessary after a major
component service.
PROBLEM ISOLATION
The first step in troubleshooting is to determine
which subsystem caused the system failure. To
make this determination operate the apparatus
and Hale FoamLogix system in accordance with
standard operating procedures and isolate where
the problem occurs.
See Figure44: “Hale FoamLogix System Trouble-
shooting Flow Diagram,” beginning on page 74,
to assist in isolating the cause. Also review the
following steps.
1. Setup the apparatus for normal operation.
2. Power-up the apparatus and energize the
pump operator panel. Take notice of the
Hale FoamLogix control unit. If the display is
NOT illuminated proceed to Figure 44: “Hale
FoamLogix System Troubleshooting Flow
Diagram,” beginning on page 74.
3. If the Hale FoamLogix control unit is illuminated,
engage the apparatus water pump and establish
discharge. If water flow CANNOT be established,
troubleshoot the water pump system.
4. If there is no indication of water flow on the
control unit display troubleshoot the flow sensor.
5. If water flow is established, turn the Hale
FoamLogix system ON to flow foam.
6. Observe foam pump discharge. If foam is NOT
flowing troubleshoot the foam pump.
7. Check accuracy of system using calibra tion
procedures in Section 4 “Operation” of this
manual, making adjustments as required.