The actual temperature of the customized heat treatment vacuum furnace does not match the displayed temperature

06-16-2025       Author: KJ technology

The actual temperature of the customized heat treatment vacuum furnace does not match the displayed temperature, which may be caused by various factors such as temperature sensors, control systems, furnace environment, power supply voltage, or external environment. The following steps can be taken to troubleshoot and solve the problem:

Check the temperature sensor:

Check if the temperature sensor is damaged or aged, causing inaccurate measurements.

Confirm whether the installation position of the temperature sensor is correct and whether it is located in an area where the furnace temperature is evenly distributed.

If necessary, replace or calibrate the temperature sensor to ensure its measurement accuracy.

Check the control system:

Check if the control system is functioning properly and if there are any software malfunctions or parameter settings errors.

Check if the PID parameter settings of the control system are reasonable. Improper PID parameter settings may lead to inaccurate temperature control.

Check and correct the software settings of the control system to ensure that the parameter settings are correct and error free.

Check the furnace environment:

Check whether there are impurities or carbon deposits in the furnace, which can affect the heat conduction and temperature distribution inside the furnace.

Regularly clean the debris and carbon deposits in the furnace to maintain a clean environment.

Check the power supply voltage:

Unstable power supply voltage may affect the accuracy of temperature control.

Ensure stable power supply voltage, and install voltage regulators and other equipment if necessary.

Check the external environment:

The external ambient temperature may have an impact on the furnace temperature, such as whether the ambient temperature is too high or too low, which may affect the control of furnace temperature.

If the external environmental temperature affects the furnace temperature, corresponding measures can be taken to improve it, such as adding insulation layers.

Use verification method:

Some simple verification methods can be used to determine whether the furnace temperature and displayed temperature are consistent, such as using substances with known melting points (such as NaOH, anhydrous Na ₂ CO ∝, etc.) for verification.