21
PROBLEMPOSSIBILE CAUSESSOLUTIONS
It has not been connected
properly to the set terminals
The Pulser that emits the count
signals has not been connected
properly
The Pulser that emits the count
signals is NOT compatible with
the electronics
The signal sent by the Pulser is
outside the acceptable electronic
ranges
Action not permitted by nozzle
contact
The MOTOR
will NOT START
DOES NOT COUNT
when dispensing
The count is
INACCURATE
The count remains
INACCURATE even
after calibration, or it
is accurate but only
for low flow rates
It DOES NOT
COMMUNICATE with
the PC
Check connections
Verificare collegamenti
An incoming electronic signal,
namely “clean contact” or
“OpenCollector”, should be
received.
If the input signal is an
incompatible voltage signal, the
electronic board is likely to be
damaged, in addition to the
malfunction
The maximum pulsation
frequency must be 70 Hz and
between 20% and 80% duty
cycle. The system does not
process received data correctly
outside the acceptable electronic
ranges.
The system must adapted to fit
within the correct ranges,
possibly by interposing other
electronic interface devices
(please contact Technical
Support for options)
Check how the nozzle contact
option has been set (YES/NO)
and the status of the relevant
jumper
The system is NOT calibrated
The RS485 connection is not
correct
The driver on the PC is not
installed properly or the version
is not compatible with the PC’s
Operating System
The RS232 or USB converter is
damaged
The PC's USB or RS232 port is
damaged
Calibrate the system according
to the procedure
Check the connections
Check the versions of the drivers
and the Operating System.
Contact Technical Assistance
Try with a different converter: if
the problem disappears, replace
the converter
Try a different port or try it on a
different PC to check the rest of
the device: if it works on another
PC, then the problem is with the
PC
EN
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