Features

·   Single voltage-free relay output

·   Single input for connection to dry contact inputs

·   Output relay for 621-002 can be powered internally, or externally to conserve loop power load (selectable at installation)

·   Monitors and signals three distinct input states

    ·   Normal

    ·   Alarm

    ·   Open-circuit

·   Polling indicator shows quiescent operation

·   Separate indicators for Quiescent, Alarm and Fault conditions

·   Integral isolator model available

·   DC 24 V operation

·   Easy installation with simple address setting DIP switches

·   Convenient 2-wire connection

·   Available with 125 usable address settings per loop when connected to Numens control and indicating equipment

Ordering Information