How to extend the life of band heater
The heating tape just burned out, right? error. According to some experts, environmental factors often cause short circuits, cause hot spots to develop, or force the heater to exceed its normal operating temperature, leading to premature failure and frequent replacement.
1. Check the sensor contacts.
2. Consider providing soft start or gradient start controls. The soft-start control will cycle the heater on and off so that the generated watts penetrate the barrel. (Note: The design of the soft-start control avoids grounding short circuits due to the penetration of moisture in the heater. Some controls will slowly increase the percentage of voltage entering the heater.)
3. When designing the system, match the total applied power with the actual power required to reduce the cycle frequency and temperature overshoot.