Once the scale sections have been correctly adjusted, the final step in the calibration process is the span setting. Here the weight display is adjusted to read the exact value of the test load applied to it. Additional testing takes place by checking the weight display with increasing and decreasing loads to make certain the scale is linear. After successful completion of the calibration process, the scale service technician will apply security seals to all of the adjustment access points to prevent further adjustment. In the US, the scale will be tested to NIST Handbook 44 Class IIIL tolerances.

After the truck scale has been calibrated & sealed by the scale company, it will normally be tested in the presence of a state or local weights and measures inspector who will verify its proper operation and in-tolerance readings. In some states, the local scale service technician is licensed by the state to perform this function. In either case, once the scale has been officially tested and a report completed, a sticker will be placed on the digital weight indicator attesting to that fact and a copy of the test report sent to the state department of weights and measures for filing. You, as the scale owner, should also receive a copy of this test report for your records.

Truck Scale Indicator

Cardinal’s 225 Navigator features transflective technology which allows the 225’s display to be viewed under any lighting conditions from direct sunlight to total darkness. One-inch-high (25 mm) weight characters make viewing easy. View up to 3 scales with total weight simultaneously with the optional dual scale input board; no special software is needed with Cardinal 225 Navigator digital weight indicator.

Entering, viewing, and storing truck names is easy with the 225 Navigator’s convenient Truck ID menu.  Complete alphanumeric descriptions for truck and material prompts make storing and recalling tare weight values quick and simple.