In order for the 375 Field Communicator to function properly, a minimum of 250 ohms resistance must be present in the HART loop.
为了使375现场通讯器正常工作，HART回路中必须至少存在250欧姆的电阻。
In order for the 375 Field Communicator to function properly, a minimum of 250 ohms resistance must be present in the HART loop.
为了使375现场通讯器正常工作，HART回路中必须至少存在250欧姆的电阻。
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