Limit alarms accept analog inputs and provide low-limit, high-limit, or other discrete output indications based on the input value. Voltage or current input signals are compared to trip/release points programmed via DIP switches or via a programming module, depending on the model; relay outputs interface to other process equipment.
Analog to Relay Limit Alarm modules that are field configurable for a variety of alarm and control applications.
The FC-3RLY2 Limit Alarm module is
The FC-3RLY4 Limit Alarm module is