Hardy HI 3010 Filler/Dispenser Controller - Manual (Page 117)

101 CHAPTER 7
Troubleshooting
C - Guidelines for Instabilities on Formerly
Operating Systems
TEST
COMPLETE
Stable?
Yes
No
C
Lift the signal wires, read and
record the Millivolt reading.
Repeat for each sensor.
Use a Multi meter and
Record load sensor
data for comparison and
stability. Check individual load sensors output by
physically lifting the signal wires and
making a reading of that sensors output.
A load sensor output can be considered stable if
the readings only vary +- 0.01mV. Applying
weight and releasing the weight should show a
very rapid Millivolt change. A slow Millivolt
change can indicate a damaged strain guage.
Inspect the summing junction box for
contamination or damage, and replace if necessary
Stable?
Remove and replace any load
sensor determined to be unstable
Stable?
Insure the problem is not
mechanical. (Review Section B)
If you are unable to isolate the
problem, contact Hardy Technical
Support: 800-821-5831
Yes
No
No
No
Yes