Model KFD0 Galvanic Barrier

Brand: Dwyer Instruments, LLC

The Model KFD0 Loop Powered, Galvanic Barrier provides complete isolation for communication with Dwyer® intrinsically-safe transmitters approved for use in hazardous areas.

Galvanic barrier eliminates the need for a high integrity earth ground required when using shunt type diode type safety barriers.

Unlike most other isolators, the Model KFD0-SCSEX1.55 does not require external power and has a low current draw. The housing is designed to easily mount on most standard DIN rails.
Features
  • Designed to mount on most standard DIN rails
  • Approved for Use in Hazardous Areas

Specifications

Approvals & Certifications

  • CE
  • FM

Consumption

  • 150 mW at 20 mA

Environmental Protection

  • Hazardous Area

Input

  • 4-20 mA

Output

  • 4-20 mA
  • Transmitter Voltage: ≤ 30 Vdc

Response Time

  • ≤ 20 microsecond at 0
  • ≤ 600 microsecond at 800

Supply Voltage

  • ≥ 16 V for Supply Voltage > 21 V

Temperature Range

  • -20° to 60° C (-4° to 140° F)

Thermal Drift

  • ≤ 0.5 µA/°C

  • Used to isolate voltages for intrinsically safe applications for HHT series
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