AHC/QHC series technical manual
8. ERROR CODES
Error Display Description Possible Causes
Err 4 Zero setting error Out of the auto zero setting range.
(4% of capacity) check the platform
empty and re try again. Do the
calibration
Err 5 Key board error Improper operation. Check the key
board cable, connector and any
damage.
Err 6 A/D out of range If overloaded, remove the weight
make sure platform is installed
proper. Check load cell and PCB
Err 9 Unstable reading Wait for reading stable. Check the
load is touching some where.
Check any air variation, vibration
and RF noise. Check load cell and
voltages
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