WG25 环路供电供电隔离放大器 | 防爆 | 传输 HART 信号
商品编号:
WG25
Description
WG25 环路供电供电隔离放大器 | 防爆 | 传输 HART 信号
用于为本安型 2 线制测量变送器和 SMART 变送器供电。
- 性价比高
无内置电源，价格低廉 - 不需要主电源
布线工作量少，可有效节省成本，消除电网影响 - 损耗功率很低
配电柜内没有不必要的发热 - 安全隔离
根据 EN 61140 (VDE 0140)：保护维护人员和下游设备免受过高电压的影响 - HART 传输
根据 HART 规范双向点到点传输数字数据 - EMC 检测
抑制无线电干扰，抗浪涌电压，即使有电磁干扰也能可靠工作 - 可靠性极高
无需维护，节省成本 - 5 年质保
任务
无源供电隔离器 WG25 无需电源即可工作。用于对 2 线制供电线路进行防爆电隔离，以及在各个方向传输 4 ... 20 mA 和 HART 信号。WG25 的电压降只有 4.2 V，可以充分利用电源，因此能够连接所有常见的 2 线制测量变送器。
优势
与有源供电隔离器相比，价格优势和可靠性优势显著。例如，即使在多通道系统中，也只需要一个中央非防爆供电设备，而且无需进行安全隔离。
技术
搭载 Knick 推出的 TransShield 技术，WG25 具有以往无源供电隔离器无法企及的优势：
- 可靠性极高，MTTF 超过 300 年
- 安全隔离，瞬态保护
- 10 kV 测试电压（可选）
- 电磁兼容性高
- 残余纹波和共模干扰影响极低
- 出色的脉冲重现
- HART 传输
- 防爆/非防爆隔离
我们期待您的来信
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| AC/DC 电位隔离: | 最高 1,000 V |
|---|---|
| 工作环境 温度: | –10 ... 50 °C |
| 是否防爆: | Ex |
| 通信（输出，数字）: | HART |
| 功能: | 2 线制传感器的信号传输和供电 |
| 输入: | 4 ... 20 mA |
| 输出: | 4 ... 20 mA |
| 最小测试电压: | 4 kV AC |
| 电源: | 无辅助电源 |
| 尺寸（宽 x 长 x 高）: | 22,5 x 73,5 x 118,2 mm |
| 特点: | ATEX: II (1) G [EEx ia] IIC, 传输 HART 信号 |
| 产品类别: | 通用隔离器 / 标准信号隔离器 |
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