Field notes on hot runner temperature control
Controller selection, PID tuning, thermocouple wiring, alarm troubleshooting and heater life: practical guides distilled from 20 years of EHRTC experience.

How to choose a hot runner temperature controller: a 7-step checklist
Zone count, power per zone, thermocouple type, modular architecture, cable and connector selection: a practical checklist for specifying the right hot runner controller for your mould.

What is PID Auto-Tune? What P, I and D do in hot runner control
The three PID terms, what Auto-Tune actually does inside the controller, when to re-tune, and when proportional (manual) mode is the right choice.

Hot runner controller alarms and troubleshooting: from symptom to fix
Thermocouple break, reversed polarity, deviation alarms, tripping breakers, temperature that never reaches set point and module faults: likely causes and 10-minute checks you can do on the shop floor.
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