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The SMART Current Driver is a versatile 1-channel isolated barrier designed for reliable operation in hazardous environments. It supports a 24 V DC supply and delivers a current output suitable for loads up to 700 Ohms, making it ideal for various industrial applications.
The SMART Current Driver falls within the category of intrinsic safety barriers, which are critical components for ensuring safe operation in potentially explosive atmospheres. These devices are designed to limit electrical energy and prevent ignition sources in hazardous locations, thus enhancing safety in industrial applications like process automation and control systems.
Commonly utilized in conjunction with HART protocol devices such as I/P converters and valve positioners, the SMART Current Driver provides precise control and monitoring of process variables. Features such as line fault detection (LFD) and an accuracy of 0.1% ensure reliable performance, while the ability to achieve up to Safety Integrity Level (SIL) 2 according to IEC 61508 standards highlights its suitability for safety-critical applications. The integration of terminal blocks with test sockets further facilitates maintenance and troubleshooting, allowing for straightforward connectivity and diagnostics.
| KFD2-SCD-EX1.LK art 223998 |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Connection | terminals 1+, 2- |
| Connection side | field side |
| Insulation coordination | EN 50178:1997 |
| Labeling | space for labeling at the front |
| Load | 100 … 700 andOmega; |
| Degree of protection | IEC 60529:2001 |
| Power consumption | 1.3 W |
| Certificate | TV 99 ATEX 1499 X |
| Mass | approx. 100 g |
| Current | 4 … 20 mA |
| Dimensions | 20 x 115 x 115 mm (0.8 x 4.5 x 4.5 inch) , housing type B1 |
| Connection side | control side |
| Current | 4 … 20 mA limited to approx. 25 mA |
| Safety Integrity Level (SIL) | SIL 2 |
| Connection | terminals 7-, 8+ |
| Ripple | within the supply tolerance |
| Voltage drop | approx. 4 V or internal resistance 200 andOmega; at 20 mA |
| Electromagnetic compatibility | NE 21:2006 |
| Rated voltage | 20 … 35 V DC |
| Power dissipation | 1.1 W at 20 mA into 10 V (equivalent to 500 andOmega;) load |
| Input resistance | > 100 kandOmega;, when wiring resistance in the field < 50 andOmega; or > 800 andOmega; at 20 mA |
| Voltage | 14 V at 20 mA |
| Galvanic isolation | EN 50178:1997 |
| Rise time | < 100 micro/s at bounce from 10 … 90 % |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| IECEx approval | IECEx BAS 16.0045 |
| Degree of protection | IP20 |
| Accuracy | 0.1 % |
| Connection | screw terminals |
| Connection | Power Rail or terminals 11+, 12- |
| Signal type | Analog output |
| Display elements | LEDs |
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