Adam Equipment MCW-250 L, Руководство по обслуживанию

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© Adam Equipment Company 2006 10
Any broken knife edges, bent “S” links or severe misalignment can cause poor
weighing results. Inspect for damage and try to re-align parts if necessary. If any of
the mechanical parts are damaged or missing, it is usually not possible to do a cost-
effective repair.
Contact your Dealer or Adam Equipment for assistance.
If the load is being directed to the load cell properly and still the weighing results are
not satisfactory, then the load cell may be faulty.
A couple of tests which are to be done to verify the load cell are as follows-
•
Within the indicator identify the load cell connector on the PCB. Voltage
measurement between pins 1 and 4 should be 5Vdc ±5%. If this voltage is
not correct then the main PCB should be replaced.
•
Voltage between pins 2 and 3 should be approximately 0 to 1mv. This
voltage should increase as the load is applied to the platform up to about 8mv.
With 250kg on the scale, if the voltage is zero and does not increase- check
the cable connecting the load cell to the indicator.
•
If the voltage with 0 kg load is greater than 2mv then the load cell is likely to
be damaged.
•
If the voltage does not change with load then check the mechanical linkage to
the load cell. Otherwise the load cell is damaged.