SPA2IS programmable alarm trips with built-in intrinsically safe (IS) field connections are combination alarm trip and temperature transmitter solutions that include built-in IS field connections for current/voltage, resistance temperature detectors (RTDs) and thermocouple. They are powered by a universal ac/dc power supply and provide on/off control, warn of unwanted process conditions, alarm on rate of change and assist with or perform emergency shutdowns. The trips accept a variety of signal inputs from transmitters and temperature sensors and provide dual and quad independent and individually configurable alarm relay outputs when a monitored process variable falls outside of user-set high and/or low limits.
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