please cconsider
please cconsider
in a tight temp control design the best method is PID control other than that vfd ,you must have lead/lag /purge supervision if gas fuel is used or you will backfire(not nice been there) a PID controller with pulsed ouput to a static relay and heating coils or approved gas solenoid with permanent lighted pilot burner will give very tight control all other systems will have a deadband inherent to the controller and work in an envelope of temperatures-this is frequently misunderstood especially in vulcanising eqiupment and thermosetting plastics NEC codes are not to be overlooked it may affect customers insurance
please cconsider
in a tight temp control design the best method is PID control other than that vfd ,you must have lead/lag /purge supervision if gas fuel is used or you will backfire(not nice been there) a PID controller with pulsed ouput to a static relay and heating coils or approved gas solenoid with permanent lighted pilot burner will give very tight control all other systems will have a deadband inherent to the controller and work in an envelope of temperatures-this is frequently misunderstood especially in vulcanising eqiupment and thermosetting plastics NEC codes are not to be overlooked it may affect customers insurance