Temperature limiters

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Limit devices are used in process control applications where independent limit switching for over or under temperature is required. If the pre-set temperature limit is exceeded then the output switches to shut down the system. A limit controller is often used in conjunction with a loop controller. It will generally accept a variety of inputs such as thermocouple, RTD, or process inputs, then allowing for high or low temperature inputs to be set. Limit controllers are used in a variety of