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What is the standard wire color of the negative or signal or return wire in an instrumentation Black White pair used in a DC 4 to 20mA loop?
Wiki User
∙ 14y ago
There really is no standard color for this. Most that I have seen use the Black as the positive (+) and the white as negative (-) but I have also seen it the other way around. Just follow the convention of the plant or customer where you are working.
Wiki User
∙ 14y ago
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What is the single loop in the process instrumentation?
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What is the purpose of a feedthrough?
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What is the single loop in the process instrumentation?
a single loop is a signal
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What is the purpose of a feedthrough?
A feedthrough is a conductor used to carry a signal through a circuit board. They have two main catagories which are power and instrumentation. Power feedthroughs are used to carry a high pwer or high voltage. Instrumentation are used to carry a low voltage electric signal.
Which of these is the goal of a negative feedback loop to A enhance a stimulus' action B release hormones C signal receptors to receive sensory info D return a substance to a normal level?
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What has the author Sedat Yuksel written?
Sedat Yuksel has written: 'Signal processing techniques applied to D.C.railway substation instrumentation and fault detection'
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What is zero drift?
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Instrumentation engineering requires many skills. A few of the necessary strengths required to be an instrument engineer are signal processing, manipulating variables, physics knowledge, understanding of mechanical principles of processes and communication systems.
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What are instrumentation cables?
Instrumentation cables are not generic. Instrumentation cables are wires that allow for a signal to be put into one end and give the same signal at the other end without distortion. What that means is if the instrument has a resisitive sensing element the 'instrument cable' used would have a very low resistive value and protection from enviromential influence to the cable to not change the value. Instrumentation cable may also be used for powering a device - which once again if powered via regulated voltage you'll want to make sure the voltage given at one end is the same on the other end. Instrumentation cables are also used for high frequency measurements are made. These instrument cables will have a frequency limitation typically based on the length of cable used due to its capacitance.
