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The SMART Transmitter Power Supply is a 1-channel isolated barrier designed for providing reliable power to various types of SMART transmitters and current sources. It supports a 24 V DC supply from a Power Rail, ensuring compatibility with both 2-wire and 3-wire configurations.
The SMART Transmitter Power Supply is engineered to facilitate the safe and efficient operation of SMART transmitters in hazardous environments. This device serves as a crucial component in process automation systems, providing isolated power and signal conditioning to ensure the integrity of data transmission from field devices. By utilizing advanced intrinsic safety barriers, it enables the reliable operation of devices in environments where explosive gases may be present.
Common applications include the monitoring and control of industrial processes where accurate measurement and control are critical. The power supply is compatible with both 2-wire and 3-wire transmitter configurations, offering flexibility in system design. Additionally, the device features output capabilities ranging from 0/4 mA to 20 mA, making it suitable for a wide range of industry-standard communication protocols.
| KFD2-STC4-EX1 art 283672 |
| EU-Type Examination Certificate | BAS 99 ATEX 7060 X |
| Connection side | field side |
| Equipment | terminals 2-, 3 |
| Connection | terminals 1+, 2-, 3 or 5-, 6+ |
| Degree of protection | IEC 60529:2001 |
| Optional accessories | – power feed module KFD2-EB2(.R4A.B)(.SP) – universal power rail UPR-03(-M)(-S) – profile rail K-DUCT-BU(-UPR-03) |
| Deviation | at 20 °C (68 °F), 0/4 … 20 mA 10 andmicro;A incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage |
| Voltage drop | 2.4 V at 20 mA (terminals 5, 6) |
| Degree of protection | IP20 |
| Electromagnetic compatibility | NE 21:2011 |
| Rise time/fall time | 20 micro/s |
| Protection against electrical shock | UL 61010-1:2012 |
| Signal type | Analog input |
| Equipment | terminals 5-, 6+ |
| Equipment | terminals 1+, 3- |
| Available voltage | 16 V at 20 mA terminals 1+, 3 |
| Equipment | terminals 1+, 2 / 3- |
| Labeling | space for labeling at the front |
| Load | 0 … 800 andOmega; at 20 mA |
| Certificate | TV 99 ATEX 1499 X |
| Output signal | 0/4 … 20 mA (overload > 25 mA) |
| Connection | terminals 7-, 8+, 9 |
| Settling time | 200 micro/s |
| Connection side | control side |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Power consumption | 1.8 W |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Output/power supply | functional insulation, rated insulation voltage 50 V AC |
| Frequency range | field side into the control side: bandwidth with 0.5 Vpp signal 0 … 7.5 kHz (-3 dB) control side into the field side: bandwidth with 0.5 Vpp signal 0.3 … 7.5 kHz (-3 dB) |
| Safety Integrity Level (SIL) | SIL 2 |
| Display elements | LED |
| Ripple | max. 50 andmicro;A rms |
| Power dissipation | 1.4 W |
| Input resistance | 64 andOmega; terminals 2-, 3 ; 500 andOmega; terminals 1+, 3 (250 andOmega; load) |
| Connection | screw terminals |
| Rated voltage | 20 … 35 V DC |
| Dimensions | 20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) , housing type B2 |
| Input signal | 0/4 … 20 mA |
| Ripple | within the supply tolerance |
| IECEx approval | IECEx BAS 04.0016X IECEx CML 15.0055X |
| Connection | Power Rail or terminals 14+, 15- |
| Mass | approx. 200 g |
Currently, the goods have no revocation.
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