Based on the previously focused hot runner response speed testing scenario, a high-precision thermometer is the core equipment for ensuring accurate test data. The calibration method is as follows:
Fixed-Point Reference Calibration: Place the thermometer probe sequentially into standard constant temperature points such as 0℃ ice-water mixture and 100℃ boiling water, record the deviation between the displayed value and the standard value, and generate a basic calibration curve.
Multi-Point Calibration in a Constant Temperature Bath: Select a high-precision constant temperature bath covering the commonly used temperature range of hot runners, set 5-8 gradient temperature points, and compare the values of the standard platinum resistance thermometer with the thermometer under test point by point to correct system errors.
On-Site Condition Recalibration: Connect the calibrated thermometer to the hot runner testing system and retest at the actual operating temperature to confirm that the deviation is ≤ ±0.01℃, meeting the accuracy requirements of hot runner response speed testing.
This calibration process fully complies with industrial-grade metrology standards, ensuring accurate and reliable thermometer data.
