How do you calibrate a proscale?

To calibrate a proscale, first ensure it's on a stable, flat surface and is powered on. Use calibration weights that match the scale's specifications, typically found in the user manual. Place the first weight on the scale and wait for it to stabilize, then press the calibration button (often labeled as "CAL" or similar). Follow any on-screen prompts to complete the calibration process, repeating for additional weights if required by the scale.