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2. Error and Treatment
2-1. Load Cell Installation
Error
Cause
Treatment
Remark
Weight Value is
unstable
1). Load cell broken
2).
Load
cell
isolation
resistance error
3). Weighing part
touches
other
devices or some
weight is on the
weighing part
4). Summing Board
Error
1).
Measure
input/output resistance
of Load cell.
2). Measure Load cell
isolation resistance
3) Check attach point
with other devices.
1).Input Resistance
of “EX+” and “EX-
“
is
about
350Ω~450Ω.
2).
Output
Resistance of “EX-
“ and “EX+” is
about 350Ω.
3).
Isolate
Resistance is more
than 100Ω
Weight Value is
increased regular
rate, but not return
to
“Zero”
1). Load cell Error
2).
Load
cell
connection Error
1). Check Load cell
connection
2). Measure Load cell
Resistance
Weight Value is
increased to under
Zero
Load cell Output wire
(SIG+,
SIG-)
is
switched
Make wire correction
“UN PASS” display
Load cell broken or
Indicator connection
Error
Load cell Check
Load cell connection
Check
Power
was
“ON”
when some weight is
on the load cell?
Remove weight on the
Load cell
“OL” or “UL” display 1). Load cell broken
or
Indicator
connection Error
2). Loading over than
Max. Capacity
1). Load cell Check
2). Load cell connection
Check
3).
Remove
over
loaded weight
