Load Cell Check - GE PANDA Service Manual

16. Subtract SC3 from SC7. The value must be 5000 +/- 10.

2.4.4 Load Cell Check

SENSITIVE TO ELECTROSTATIC DISCHARGE CAUTION
An Electrostatic Discharge (ESD) Susceptibility symbol is displayed to alert service personnel that
the part(s) are sensitive to electrostatic discharge and that static control procedures must be
used to prevent damage to the equipment.
1. Perform the scale calibration procedures described in Chapter 3, "Calibration."
2. Turn off the bed. Make sure no mechanical interference (loose screws, etc.) exists, and the scale cable is
routed properly.
3. Turn on the bed, and go to the service screen.
4. Check the displayed SC values, and confirm that the values do not change more than 5 counts total.
5. If the SC values change more than 5 counts, 1 or both load cells might be defective. Perform the
following steps:
a. Remove the scale top tray and the control board cover to access the load cell connectors on the
control board.
b. Disconnect 1 load cell from the control board at a time, and check the SC value. If the SC values
change 5 counts or fewer after disconnecting the load cell, the disconnected load cell is defective
and must be replaced.
Service Manual
Chapter 2: Installation, Maintenance, and Checkout
FIGURE 2-3. Weight Placement Locations
Scale Checkout Procedures
2-7