KFD2-VR4-Ex1.26 Voltage Relay Safety Barrier

KFD2-VR4-Ex1.26 Voltage Repeater Safety Barrier Features

• Single-channel safety barrier

• 24V DC power supply (rail-powered)

• Voltage input 0 V ... -20 V

• Vibration sensor input

• Field source voltage/current

• Voltage output 0V ... -20 V

KFD2-VR4-Ex1.26 Voltage Repeater Safety Barrier is suitable for intrinsically safe applications. It provides one floating output for vibration sensors (e.g., Bently Nevada) or acceleration sensors located in the hazardous area and transmits voltage signals from the corresponding sensors to the safe area. This device is designed to supply voltage or current power to vibration sensors. Depending on the safety barrier's connection, it can provide a supply current of 3.6 mA, 5.3 mA, or 8.9 mA for 2-wire sensors, or a supply voltage of 18 V at 20 mA for 3-wire sensors.

Technical Data

Power Supply

Rated voltage 20 ... 35 V DC

Power consumption < 1.6 W

Input

Input resistance 10kΩ Terminal 4 (common), 6-/2-

Rated operating current at output

Terminal 4 (common), 5-: >10 mA at 21V or >20 mA at -18 V

Terminal 4 (common), 1-: 5.3 mA ± 0.53 mA at -10 V

Terminal 4 (common), 3-: 3.6 mA ± 0.7 mA at -10 V

Transmission range 0 ... -20 V

Output

Load ≥ 2 kΩ

Voltage 0 ... -20 V