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PROBLEM
The display shows the
O-L message
The hyphen is shown
in the top display.
The number of
decimal places is
wrong.
The Instrument remains
switched off
Weight display is
frozen
Inputs and / or
outputs does not work
properly
The serial
communication does
not work properly.
The semi-automatic
zero-setting function
does not work.
The semi-automatic
tare function does not
work.
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TROUBLESHOOTING
POSSIBLE CAUSE
The weight cannot be detected
because the cell is not available or
has been connected incorrectly.
The acquired weight cannot be
shown because it exceeds the
available five digits or is greater than
the capacity of the cells.
Incorrect division value selected.
Wrong supply voltage
The load cell is not functioning
properly or has not been properly
connected
Wiring or Software Setup Errors
Installation has been completed
properly. Selection of operation of
theserial interface is incorrect.
The gross weight exceeds the action
limit of semi-automatic zero-setting.
The weight doesn't stabilise.
The gross weight is negative
orexceeds the maximum capacity.
The weight doesn't stabilise.
SOLUTION
Check the connections of the cells.
Configure setup parameters that are
compatible with system features
Select the correct division value inthe
main menu.
Power up the instrument with the
correct supply voltage
Use a multimeter and measure 5Vdc
between EXC+ and EXC- and a
lower value between SENSE+ and
SENSE- (greater are the distance
between the instrument and the load
cells and lower will be the SENSE
voltage) and check the variation in
millivolt between SGN+ and SGN-
when loading or unloading the load
cells
Use the I / O Test Function to verify
the correct operation of inputs and
outputs and verify the settings of the
specific program
Check the connections as
describedin the installation manual.
Select the settings as appropriate.
To re-establish the zero, calibrate the
weight.
Wait for the weight to stabilise or
adjust the weight filter parameter.
Check the gross weight.
Wait for the weight to stabilise or
adjust the weight filter parameter.
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