A calibrated pH meter is essential for accurate measurements in lab settings, like those used in your laboratory equipment business. Calibration adjusts the device using standard buffer solutions to ensure reliable pH readings over time.
pH meters require at least a two-point calibration with pH 4.0 (acidic) and pH 7.0 (neutral) buffers, or a three-point method adding pH 10.0 for broader accuracy. Always use fresh buffers and rinse the probe with distilled water between steps to avoid contamination. Calibrate before each use or daily, starting with pH 7 to reset the mid-point.