load cell calibration

The most common sign is zero drift—when the reading doesn’t return to the original zero after unloading. Also, if you compare it against a known reference load and see a deviation beyond your project’s tolerance, it’s time for calibration. Some monitoring specs mandate annual recalibration regardless of symptoms.

We do both. Lab calibration is more controlled and cost-effective for most cases. On-site work is available when removing the sensor would cut critical data. It requires a stable setup and portable reference standards, so we’ll evaluate feasibility together before committing.

We trace our reference load cells to national standards, and the procedures align with common industry practices such as ASTM E74 or ISO 376. The exact standard referenced depends on the sensor type and your project requirements; we’ll state it clearly in the calibration report.

Not always. Calibration corrects systematic errors like sensitivity shift or offset, but erratic readings often point to wiring damage, moisture inside the strain gauge circuit, or a fatigue crack. We check for those faults during the process and let you know if the cell is beyond economical repair before spending your budget on calibration.

In our lab, a standard load cell often takes a few working days after receipt. If we need to stabilize the cell at temperature or run additional load cycles to settle repeatability, it can stretch the timeline. We’ll confirm the turnaround when you reach out.