How to Resolve Signal Anomalies in Hot Runner Temperature Monitoring Systems

Considering the main challenges in hot runner temperature monitoring systems stated earlier and the relevant background of PID parameter debugging, specific solutions for signal anomaly concerns can be proposed as follows:

Troubleshoot Hardware Wiring: Tighten all loose terminals, replace oxidized or corroded leads, and verify that the sensor probe has no broken wires or physical damage, ruling out bad contact in the basic hardware.

Electromagnetic Interference Handling: Add metal shielding shell to the acquisition module, and place the sensor signal lines and heating coil power lines in different channels, to avoid signal jumps and packet loss caused by strong electromagnetic interference.

Faulty sensor verification and replacement: Check the sensor resistance by multimeter, replace the drifting, short circuit/open circuit damaged sensor, ensuring the probe is in full contact with the hot runner temperature measuring surface, and eliminate the deviation of signal acquisition.

Fix communication link abnormalities: change the antenna position of the wireless module to avoid blocking, replace damaged wired communication lines, and set the parameters of the communication protocol to restore steady data transfer. Adjust system parameter discrepancies. Re-do the PID self-tuning and the full-point temperature calibration, so as to eliminate the signal anomaly due to the drift of the system temperature, and restore the monitoring data to correctness and stability.

After the aforementioned actions, the problem of signal anomaly of the hot runner temperature monitoring system will be entirely solved.