T48 Plastics Extruder Application
Several T48 controllers are employed to control the temperature of a plastics
extruder. Each T48 controls a heating element and a cooling water solenoid to
maintain each extruder zone at the desired temperature. The Heater Current
Monitor option is used for early detection of heater element failure.
The multi-function User Input can be programmed to allow selection of
manual operation when connected to common. This allows the user to hold
the control output of the controller during abnormal process conditions.
Figure 39, Plastics Extruder Application, shows one such zone.
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Figure 39, Plastics Extruder Application
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