Accessing the Calibration Parameter Settings Interface: Press and hold the "Setup" button on the Husky temperature controller panel for 3-5 seconds, then input the device administrator password and select the "Advanced Configuration" menu.
Select "Thermocouple Calibration/Temperature Compensation" from the menu list. Confirm that you want to enter the specific parameter adjustment interface to avoid mistakenly adjusting other temperature control parameters.
Step-by-step adjustment of core calibration parameters:
Cold Junction Compensation Parameter: Take a high-precision thermometer and measure the ambient temperature at the temperature controller's terminals. Set the "Cold Junction Compensation Temperature" parameter on the panel to the measured value to eliminate system faults caused by cold junction drift.
Single Point Offset Compensation Parameter: Once the temperature at the most common production temperature point in the hot runner has stabilised, enter the actual temperature value measured by the standard thermocouple into the temperature controller's "Indication Offset Correction" field. The basic compensation amount is calculated automatically by the system.
Multi-point linear compensation parameters: At the three calibration points of 20%, 50%, and 80% of the measurement range, the temperature controller's multi-point calibration table is updated with the standard temperature value for each point. To reduce thermocouple nonlinearity errors, the system develops a linear compensation curve throughout the whole temperature range.
PID temperature control parameters: After finishing the temperature compensation settings, the temperature controller's PID self-tuning capability is enabled. To prevent temperature control overshoot and oscillation, the system optimises P, I, and D values based on fresh measurement features.
Parameter locking and verification: Once all parameters have been modified, save the configuration and close the advanced menu. Set a password for parameter alteration capabilities to avoid accidentally changing calibration parameters later.
Heat to the generally used production temperature and hold for 1 hour. Using a conventional thermocouple, validate that the temperature measurement deviation and fluctuation are both ≤ ±1℃. Parameter correction is complete.
This parameter modification procedure is perfectly compatible with the hardware features of Husky hot runner temperature controllers, effectively eliminating temperature measurement system discrepancies and meeting the demanding temperature control requirements of precision injection moulding.
