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Status SEM1636 4 to 20mA Loop Powered Dual Alarm Relay Trip Amplifier Status Instruments SEM1636 This dual trip amplifier monitors a 4 to 20mA loop and provides two independent CO trip contacts that are set to alarm at any point in the 4 to 20mA range The unit requires no additional external power as power is provided by the 4 to 20mA loop The outputs from the dual relays are independently configured for action set point and dead band and six actions are provided normal and inverted low
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