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The SMART Transmitter Power Supply is a 1-channel isolated barrier designed for use in hazardous environments, providing a reliable 24 V DC supply for 2-wire SMART transmitters and current sources. It supports output signals of 4 mA to 20 mA or 1 V to 5 V while maintaining low power dissipation.
The SMART Transmitter Power Supply belongs to the category of intrinsic safety barriers, which are essential in applications where electrical equipment must be operated safely in potentially explosive atmospheres. This device is engineered to isolate and power SMART transmitters, ensuring that signals can be transmitted and received without risking ignition sources. Its capability to cater to both 4 mA to 20 mA and 1 V to 5 V output ranges makes it versatile for various industrial applications.
Commonly employed in process control and automation settings, the SMART Transmitter Power Supply integrates line fault detection (LFD) features, enhancing system reliability and safety. With compliance up to Safety Integrity Level 3 (SIL 3) according to IEC 61508, this device is suitable for critical applications where safety and performance are of utmost importance. The low power dissipation characteristic also contributes to more efficient operations, making it an optimal choice for demanding environments.
| Connection | SL1: 8a(+), 7a(-) |
| Output signal | 4 … 20 mA or 1 … 5 V (on 250 andOmega;, 0.1 % internal shunt) 4 … 20 mA (sink mode), operating voltage 16 … 28 V |
| Connection side | control side |
| Voltage drop | approx. 5 V on SL2: 5a(+), 1b(-) |
| Mass | approx. 100 g |
| Connection | SL2: 5a(+), 1b(-); 5a(+), 5b(-) |
| Electromagnetic compatibility | NE 21:2006 For further information see system description. |
| Ripple | 20 mV rms |
| Power consumption | 1.2 W |
| Connection side | field side |
| Signal type | Analog input |
| Frequency range | field side into the control side: bandwidth with 1 mApp signal 0 … 3 kHz (-3 dB) control side into the field side: bandwidth with 0.5 Vpp signal 0 … 3 kHz (-3 dB) |
| Rise time/fall time | 20 ms |
| EU-Type Examination Certificate | CESI 10 ATEX 063 |
| Dimensions | 12.5 x 128 x 106 mm (0.5 x 5.1 x 4.2 inch) |
| Settling time | 200 ms |
| Certificate | PF 10 CERT 1748 X |
| Display elements | LEDs |
| Configuration | via DIP switches |
| Load | 0 … 300 andOmega; (source mode) |
| Power dissipation | 800 mW |
| Degree of protection | IP20 |
| Connection | SL1: 6b |
| Labeling | space for labeling at the front |
| Degree of protection | IEC 60529:2001 |
| Rated voltage | 19 … 30 V DC bus powered via Termination Board |
| Input signal | 4 … 20 mA , limited to approx. 27 mA reverse polarity protected |
| Safety Integrity Level (SIL) | SIL 3 |
| Mounting | on Termination Board |
| Deviation | at 20 °C (68 °F) � 20 andmicro;A incl. calibration, linearity, hysteresis, loads and supply voltage fluctuations (source mode and sink mode 4 … 20 mA) 10 mV incl. calibration, linearity, hysteresis and fluctuations of supply voltage (source mode 1 … 5 V) |
| Line fault detection | downscaling 3 mA ; upscaling 22 mA |
| Available voltage | 15 V at 20 mA on SL2: 5a(+), 5b(-) |
| Rated current | 50 mA |
| Connection | SL1: 1a(-), 1b(-); 2a(+), 2b(+) |
| Output type | open collector transistor (internal fault bus) |
| Ripple | 10 % |
| IECEx approval | IECEx CES 10.0021 |
| Control elements | DIP-switch |
| Ambient temperature | -20 … 70 °C (-4 … 158 °F) |
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