Anyload LCT100 Manual do utilizador - Página 4

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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

Input / Output

resistance not in

range

Sense is Too high (6

wires cell)

Signal Output from the

scale is not in the

expected range

Signal Output not in the

expected range

(Unloaded Load Cell it

should be around 0%)

Shield to bridge is too

low

3 |

ANYLOAD LCT100 Load Cell Tester User's Guide (V1702)

Possible reasons

Cable or connector

problem

Problems inside the load

cell

Not connected inside

L/C, or it can be 4 wires

Load Cell

Corrosion, force shunts,

accumulated dust below

the L/C

or a faulty L/C

Load cell zero balance

damaged because of

shock or overload

Water or chemical

ingress to the cable or

into the L/C

What to do?

Check cable integrity

and the

connectors

Replace or send for

repair

Replace or send for

repair

Clean the dust and

check force shunts and

alignment. Replace L/C if

necessary

If the output signal is

still low, the load cell

can be used. A new

calibration will be

required.

Replace the cable or

repair the L/C