output (total of the Input resistance divide by 4 and the same for the
Output resistance). In case of six wires cable, you should expect to get
very low resistance between the sense lines and the inputas those are
shorted inside the L/C. Signal output must be around 10% (full scale
capacity is 400kg) and the Shield to bridge resistance must remain very
highi.e. >1000MΩ
3.
If some of the expected results are not in the required range, or you
get erratic / unstable readings when testing in Continuous (Gain)
mode: Check the cable integrity between the summing box and the
tester. If it looks fine, disconnect each Load Cell cable and check each
Load Cell separately. Note: there is no need to remove the load cell
from the scale.
4.
If all results seem to be in range, you may check for scale linearity, by
choosing Continuous mode (Gain) on the LCT100 and applying various
weights on the scale.
Understanding the LCT100 results:
Testing result with LCT
Possible reasons
What to do?
Input / Output
resistance not in
range
Cable or connector
problem
Check cable integrity
and the
connectors
Problems inside the load
cell
Replace or send for
repair
Sense is Too high (6
wires cell)
Not connected inside
L/C, or it can be 4 wires
Load Cell
Replace or send for
repair
Signal Output from the
scale is not in the
expected range
Corrosion, force shunts,
accumulated dust below
the L/C
or a faulty L/C
Clean the dust and
check force shunts and
alignment. Replace L/C if
necessary
Signal Output not in the
expected range
(Unloaded Load Cell it
should be around 0%)
Load cell zero balance
damaged because of
shock or overload
If the output signal is
still low, the load cell
can be used. A new
calibration will be
required.
Shield to bridge is too
low
Water or chemical
ingress to the cable or
into the L/C
Replace the cable or
repair the L/C
3
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ANYLOAD LCT100 Load Cell Tester User’s Guide (V1702)
