System Inaccurate
Inaccurate systems are usually caused by:
Indicator with wrong set-up. (An indicator that was set up for another scale
application.)
Debris under/around mounts or structure.
Mounts, platform or cart not shimmed or supported properly to provide equal load
to each load cell.
Defective load cell.
Load cell up-side down. (new installations)
First, determine if the inaccuracy is caused by the indicator or something else. To do
this, stand in the middle of the scale and note your weight (tough for mobile systems).
Stand or hang at each load cell and note each reading. If the readings are all within 1
display count, the indicator is causing the problem.
If you find that one or more of the readings are more than 2 display counts different
from the others, then continue to one of the other possibilities in this section.
Indicator with Wrong Set-Up or Miscalibrated:
Verify that the indicator has the proper set-up. Compare the system configuration (size,
type and number of load cells) to the decal on the bottom of the indicator.
Inaccurate calibration: If the indicator needs re-calibration, it is best to contact your
dealer first. See scale operation manual for calibration instructions.
Debris Under/Around Mounts or Structure:
Readings will be less than actual if debris is lodged under or around the mounts and
platform.
Insure that the mounts, load cells and weighing structure are free of ice and debris.
Inspect around the edges of platform for any gravel or product that may have fallen
through the cracks around the deck.
On Weighmasters you can often clear the object without raising the deck. Use a piece
of stiff wire (like welding rod) and a needle nose pliers to dislodge debris.
