Display
blank
after turn on
test,
Error
message
Display is
locked
Pan not installed
Unstable weight
Load cell damaged
Mechanics damaged
Check the pans are installed
correctly.
Try turning the scale on again.
OL or FULL
appears on
display
Maximum capacity exceeded
Load Cell or mechanics
damaged
Power supply faulty
Check the pans are installed
correctly.
Try turning the scale on again.
UL or NULL
displayed
Weight on scale below
permissible limit
Pan has been removed
Pan support not seated properly
Power supply faulty
Load Cell or mechanics
damaged
Check the pans are installed
correctly.
Try pressing Zero key.
Try turning the scale on again.
Display is
unstable
Drafts or air currents
Obstruction under pan
Sample is moving (animal
weighing)
Vibrations through table
Temperature changed
dramatically
Power supply faulty
Verify the scale is in a
acceptable location and on a
good table.
Verify the power supply is
correct for the scale.
Weight
value
incorrect
Calibration error, Recalibrate
Linearity error, set Linearity
Unit calibrated with inaccurate
weight
Balance not level
Obstruction between sample and
cover
Wrong unit of weight displayed
Calibrate again, paying special
attention to the mass used, the
stability of the scale, and the
weighing units required.
If linearity can be set by the user
it will be described in the user
manual.
Check pan is installed correctly.
Cannot use
Full
Capacity
Over load Stops hitting pan
support or hitting bottom of load
cell
Shipping screw not removed if
applicable
Electronic problem on A/D
Parameters set incorrectly
Load Cell or mechanics
Damaged
Look for obstruction under pan,
shipping screws, and verify pan
installation.
Check the weighing units used.
Not Linear
Overload stops hitting too soon
Load cell or mechanics damaged
A/D damaged
Look for obstruction under pan,
shipping screws, and verify pan
installation.
If linearity can be set by the user
it will be described in the user
manual.
Off Center Adjust mechanics
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