herdstar BinTrac Breeder Control, Operation Manual

Page: 51 / 52

Operation Manual
Version 2.0
51
Part Number MAN-000009
Load Cell Troubleshooting Procedures
The procedures below outline the steps for identifying and locating a defective load cell. Procedure 1 is most
commonly used and quickest, although Procedure 2 can be used for better analysis and for determining even loading
across all load cells.
1. Check for cut load cell cables.
2. Check connections in Smart Summing box.
3. Check for debris under bin legs.
4. Check for binding/clearance between bracket and bin legs (see below).
Quick Load Cell Inspection Procedure
1. Record/Note Current Weight Reading on BinTrac Indicator.
2. Disconnect a single load cell from Smart Summing Box.
3. Observe for change in weight display. If weight change is significant and/or more stable, note this load cell as
possible defect.
4. Reconnect load cell if symptoms did not change.
5. Repeat for remaining load cells.
6. Replace load cell that when disconnected provides the most accurate reading or proceed to Comprehensive
Load Cell Inspection Procedure.
Comprehensive Load Cell Inspection Procedure
1. Record/Note Current Weight Reading on BinTrac Indicator.
2. Disconnect all but one load cell within summing box.
3. Record weight reading.
4. Disconnect load cell and connect next load cell and repeat for all remaining load cells.
5. Review weight readings.
6. Variations in readings can be caused by offset loading within bin and/or improper lifting screw tension.
a. Inspect loading within bin matches load cell reading variations.
b. Examine bracket assembly and lifting screw tension.
i. If reading is low and others beside it are high, tighten screw slightly.
ii. If reading is high and others beside it are low, loosen screw slightly.
iii. If reading is out of range, replace load cell.
iv. Repeat individual readings inspection and adjustments return to Step 2.
7. Reconnect all load cells except for known defective one.
8. Repeat procedure if weight reading is not accurate.
Note: If a defective load cell is located, by unplugging it, the scale system will continue to function until time
is available to replace the defective load cell.