MODEL NUMBER : KFD2-VR4-EX1.26
* 1-channel isolated barrier
*24 V DC supply (Power Rail)
* Voltage input 0 V ... -20 V
* Vibration sensor inputs
*; Voltage/current field supply
* Voltage output 0 V ... -20 V
* Up to SIL 2 acc. to IEC/EN 61508

Function
This isolated barrier is used for intrinsic safety applications. It provides a floating output to power a vibration sensor (e. g., Bently Nevada) oraccelerometer in a hazardous area and transfers the voltage signal from that sensor to the safe area.The device is designed to provide a voltage or current supply to the vibration sensor. Depending on connection the barrier provides 3.6 mA, 5.3 mA, or 8.9 mA supply current for 2-wire sensors, or 18 V at 20 mA for 3-wire sensors.

Technical Data
*General specifications: Signal type Analog input
*Functional safety related parameters: Safety Integrity Level (SIL) SIL 2

Supply
*Connection Power Rail or terminals 11+, 12-
*Rated voltage Ur 19 ... 30 V DC
*Ripple within the supply tolerance
*Power dissipation ≤ 1.2 W
*Power consumption ≤ 1.6 W

*Input: Connection side field side

REFER DATASHEET FOR MORE DETAILS