Current repeater D1022D

interfaceATEXfor fire detector

2 CH. LOOP POWERED FIRE / SMOKE DETECTOR INTERFACE DESCRIPTION The D1022D is a loop-powered single or dual channel isolated current repeater. It can be used to interface transmitter, to drive I/P converter, fire and smoke detectors or similar switched resistor systems, located in Hazardous Area, requiring a wide output current range (from 1 to 40 mA) to operate properly. When drive I/P converter, positioner, display a current source is connected to the input terminals, while interfacing transmitter or fire and smoke detector a voltage source with current readback can be connected. The transmitter current is sinked from the input terminals operating as a transparent interface. For fire and smoke detector, the triggering of a detector causes a corresponding change in the Safe Area circuit current. A field open circuit reflects a high impedance to the control device circuit. The unit has reverse input polarity protection and ≤ 1 % accuracy. FEATURES • Output to Zone 0 (Zone 20), Division 1, installation in Zone 2, Division 2. • Wide operating current range from 1 to 40 mA. • Field open circuit detection. • Input/Output isolation. • EMC Compatibility to EN61000-6-2, EN61000-6-4. • High Reliability, SMD components. • High Density, two channels per unit. • Simplified installation using standard DIN Rail and plug-in terminal blocks. • 250 Vrms (Um) max. voltage allowed to the instruments associated with the barrier.