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This K-System isolated barrier is a two-channel switch repeater designed for interfacing NAMUR sensors or mechanical contacts located in hazardous areas with safe area control systems. It provides galvanic isolation and intrinsic safety protection, ensuring reliable signal transmission while preventing energy transfer into explosive atmospheres. The unit features line fault detection and relay outputs for robust process control applications.
Technical Specifications:
SERIES/FAMILY: K-System (KFD2-SR2-EX1.W.SM)
COMPONENT TYPE: Isolated Barrier, Switch Repeater
ELECTRICAL SPECS:
SUPPLY VOLTAGE: 20-35V DC
POWER CONSUMPTION: < 1.5 W
INPUT: 2-channel, intrinsically safe for NAMUR sensors (EN 60947-5-6) or dry contacts
SIGNAL TYPE: Discrete input (NAMUR/contact), Discrete output (relay)
FREQUENCY RANGE: 0 to 5 kHz
RESPONSE TIME: < 10 ms
DIAGNOSTICS: Configurable line fault detection (wire break, short circuit)
INDICATORS: LEDs for operation, switching state, and fault
ENVIRONMENTAL/MOUNTING:
IP RATING: IP20
MOUNTING: 35mm DIN rail
TERMINALS: Screw terminals
OPERATING TEMPERATURE: -20 to +60 °C
HAZARDOUS AREA CERTIFICATION: Intrinsic safety compliance for Zone 0/1/2 (gas) and Zone 20/21/22 (dust) applications
COMPATIBILITY/APPLICATION: Process automation, chemical plants, oil & gas, pharmaceuticals, water/wastewater treatment, and other industries requiring intrinsically safe circuits for discrete signal interfacing.
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