Indicator Unstable (Drifts)
Slow Drift
Variations of 50 lbs with 1" DB cells and up to 350 lbs on 2 ” DB and larger cells are normal
for most scale systems with daily temperature changes. Temperature compensated cells
minimize temperature drift but do not eliminate drifting entirely. Balance indicator before
use to prevent drift from causing inaccurate weight readings, except for feed bins where
you want to save inventory data. For feed bins, scale must be empty before balancing it.
Zero Track
EZ Series indicators with “Zero Track” turned on will hold the indicator on zero. “Zero
Track” is designed to compensate for slow changing variations on an empty scale (i.e.:
snowfall or temperature drift). “Zero Track” is not functional while weight is applied, or in
“NET” mode.
1. If rapid or intermittent changes in the display occurs, test the indicator by disconnecting
the junction box from the indicator and short pins 2 and 3 on the load cell jack.
• If the symptoms persist, replace the indicator.
2. Inspect the junction box wiring. (See page 10)
NOTE: Moisture inside the junction box can cause unstable or drifting readings.
3. Test the junction box. (See page 10)
4. Test the Load Cells. (See page 11)
Mobile Units
Uneven terrain causes weight shifts. Always seek smooth flat terrain to make weight
readings. Wheel alignment (toe-in/toe-out) can cause weight shift when unit moves (even
on smooth flat terrain).
