Calibration ensures thermocouples provide accurate temperature readings over their service life. Over time, drift, oxidation, and physical stress cause measurement deviation. Uncalibrated sensors lead to inconsistent molding, poor part quality, and hidden production issues.
Major hot runner brands recommend regular calibration schedules for optimal performance. Hasco, DME, and Watlow provide calibrated sensors and traceable standards. Advanced controllers offer built-in calibration functions to compensate for minor drift.
Calibration-suitable products include high-stability thermocouples, reference-grade sensors, and easy-calibration designs. These are critical in medical, automotive, and high-precision applications.
Common issues from lack of calibration include gradual temperature offset, defective parts, and inefficient heating. Periodic calibration maintains accuracy and reduces long-term production risks.
