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| Detail | For supply of intrinsically safe 2-wire transmitters and SMART transmitters |
| Facts | Low-cost due to omission of the integrated power supply |
| No mains power required costs savings doe to lower wiring effort | |
| No mains interference | |
| Low power loss no unnecessary heating in the enclosure | |
| Protective separation according to EN 61140: protection of the maintenance staff and subsequent devices against excessively high voltages | |
| HART® transmission: bi-directional point-to-point transmission of digital data according to the HART® specification* | |
| EMC tested RFI suppressed and surge proof: reliable operation even with electromagnetic interference | |
| Maximum reliability: no maintenance work so the associated costs are not incurred | |
| 5 year warranty | |
| Detail | The passive WG 25 repeater power supply is loop-powered. It is used for galvanic hazardous-area separation of a 2-wire supply line and transmits both 4 … 20 mA and HART® signals in both directions. With a voltage drop of just 4.2 V, the WG 25 uses the supply optimally so that all common 2-wire transmitters can be connected. |
| Compared with active repeater power supplies, it has considerable price and reliability advantages. Multi-channel systems require only one central, safe-area power supply that does not even need protective separation. | |
| *HART® is a registered trademark of the HART Communication Foundation |