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What's the matter? Instrument two times?

Source: Internet
Author: User
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A meter generally refers to direct contact with the measuring medium of the instrument, such as temperature, pressure, flow, liquid level, tension, speed, current, voltage and so on, usually can be divided into two parts, part called thermal instrumentation, the other part can be called electrical instrumentation.
two times the instrument is used to display and record the above process parameters of the instrument, collectively referred to as two times instrument.

A meter: Refers to the instrument installed in the field and directly in contact with the process media.


Two times meter: is the instrument indicating that the value of the signal is not directly from the process medium of various types of instruments collectively.

What's the matter? Instrument two times?

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