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WG25 Repeater Power Supply | Input 4 … 20 mA | Ex | Transmission of HART signals

Description

WG25 Repeater Power Supply | Input 4 … 20 mA | Ex | Transmission of HART signals

For supply of intrinsically safe 2-wire transmitters and SMART transmitters.

  • Affordable
    Good price due to omission of integrated power supply
  • No mains supply required
    Cost savings due to lower wiring effort, no mains influences
  • Low power losses
    No unnecessary heating in the enclosure
  • Protective separation
    according to EN 61140 Protection of maintenance staff and downstream devices against excessively high voltages
  • HART transmission
    Bidirectional 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, therefore the related costs are not incurred

The Task
The passive WG25 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.

The Advantages
Compared with active repeater power supplies, it has considerable price and reliability advantages. 
Multi-channel systems, for example, require only one central, safe-area power supply that does not even need protective separation.

The Technology
Using Knick TransShield technology, the WG25 has specifications that were previously not available in passive repeater power supplies:

  • Extremely high reliability, MTTF of over 300 years
  • Protective separation, transient protection
  • 10 kV test voltage (optional)
  • High electromagnetic compatibility
  • Extremely low residual ripple and common-mode interference
  • Outstanding pulse formation
  • HART transmission
  • Hazardous/safe area separation

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技术细节

是否防爆: Ex
通信(输出,数字): HART
产品类别: 通用隔离器 / 标准信号隔离器

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操作说明书

[4502] User Manual (DE, EN)
WG 25
Loop-Powered Supply
Version 04

证书

[13687] EU Declaration of Conformity (DE, EN, FR)
WG 25 A7, Opt. ... & IsoTrans 37 A7, Opt. ...
No. EU210416A | 2021-04-16

我们的服务

在工艺或应用中使用

高压隔离放大器和变送器,用于采集和转换电流、电压、温度、转速、应变和电阻信号。
长期稳定的高压隔离放大器、变送器和信号倍增器,适用于要求苛刻的应用

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