FlowPulse Handheld
INSTRUCTION MANUAL
42
CHAPTER 5 TROUBLESHOOTING
Flow Pulse Diagnostic
Please refer to the Flow Pulse Instruction Manual regarding information on
using and interpreting the diagnostic trace.
Troubleshooting the Handheld Controller
Sensor not connected
POSSIBLE CAUSES
ACTION
Sensor power an RS485
connection
Ensure that the Flow Pulse sensor is powered,
either independently or by the controller.
Check that the RS-485 +ve and
–
ve wires are
correctly connected.
RS485 mode
If the sensor is being connected to a handheld
controller for the first time, the RS-485 needs to
be set to PC-485 mode.
This can be done via the handheld controller,
check that all wires are connected, press F4, select
Tools, select Modbus to PC-485, enter 126 (default
Modbus ID on Flow Pulse sensor) then press Enter.
Controller does not switch on
POSSIBLE CAUSES
ACTION
Low or damaged battery
Ensure that the Flow Pulse sensor is powered,
either independently or by the controller.
Check that the RS-485 +ve and
–
ve wires are
correctly connected.
Tripped thermal or current
fuse
If the device has recently been subjected to:
a)
rewiring on sensor side, or
b)
temperature beyond specified range
the thermal or current fuses may have tripped.
SD card removed
Re-install the SD card if it was removed.
SD card error
Rule out low or damaged battery before replacing
the SD card.
