1783-US4T1H

1783-US4T1H

1783-US4T1H

7．信号隔离器功能是什么？ 
一：保护下级的控制回路。 
二：消弱环境噪声对测试电路的影响。 
三：***公共接地、变频器、电磁阀及不明脉冲对设备的干扰；同时对下级设备具有限压、额流的功能是变送器、仪表、变频器、电磁阀PLC/DCS输入输出及通讯接口的忠实防护。标准系列导轨结构，易于安装，可有效的隔离：输入、输出和电源及大地之间的电位。能够克服变频器噪声及各种高低频脉动干扰。 
8. 现在市场有那么多品牌的隔离器，价格参差不齐，该怎么选择呢？ 
隔离器位于二个系统通道之间，所以选择隔离器首先要确定输入输出功能，同时要使隔离器输入输出模式（电压型、电流型、环路供电型等）适应前后端通道接口模式。此外尚有精度﹑功耗﹑噪音﹑绝缘强度﹑总线通讯功能等许多重要参数涉及产品性能，例如：噪音与精度有关、功耗热量与可靠性有关，这些需要使用者慎选。总之，适用、可靠、产品性价比是选择隔离器的主要原则。

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