Rice Lake MSI-3460 Challenger 3 - Manual (Page 52)

48 MSI-3460 Operator’s Manual
8.0 Appendix
8.1 Troubleshooting
Problem Possible Cause Solution
Display is blank when
POWER button is
depressed. Discharged battery Recharge, allow at least four
hours charge.
Defective battery Replace
Corroded battery or battery
contacts Clean contacts
Defective switch or circuit
board. Requires authorized service.
Display does not
function properly or
front panel button does
not function normally
or scale will not turn
off. Improperly updated software. Reinstall software
Faulty circuit board Requires authorized service.
Loose connectors Requires authorized service.
Scale does not
respond to weight
changes. Out of calibration Calibrate
Faulty load cell Replace
Load cell connector Check connector and wires.
Display over ranges
below 100% capacity. Tared weight is added to load
to determine overload point. Return to gross weight mode.
Zero requires adjustment. Rezero the scale
Too much weight has been
zeroed. Rezero the scale
Display Drifts AZM (Auto0) is turned off. Turn AZM on
Rapid temperature changes
such as moving the scale
from indoors to outdoors. Wait until the scale
temperature has stabalized.
Displayed weight
shows large error. Scale not zeroed before load
is lifted. Zero the scale with no load
attached.
lb/kg units causing confusion Select proper units
Requires recalibration Recalibrate
Display reading not
stable. Excessive vibration in crane
system. Increase filtering or increase
‘d’ in cal.
Excessive side loading Improve load train symmetry
Load cell faulty Check LC connections
Display toggles
between “Error” and
“Load” Weight exceeds capacity Reduce weight immediately
Faulty load cell or wiring Check LC and LC wiring
Display toggles
between “Error” and
“A2DLo” A/D is saturated negative Check LC and LC wiring
Figure 8-1. Troubleshooting