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How to correctly choose to use electric instrument

by:Sincerity     2020-10-22
Abstract: how to correctly choose to use electric instrument information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. When we use electrical instrument, because the measuring method is not perfect and cause measurement error, must pay attention to the correct use of electric instrument, need to pay attention to the following points: in pieces according to the features of the measured object and select the instrument type. Depending on the measured dc or in the first place. More flow meter manufacturers choose model price quote you are welcome to inquire, here is how to correctly choose to use electric instrument article details. When we use electrical instrument, because the measuring method is not perfect and cause measurement error, must pay attention to the correct use of electric instrument, need to pay attention to the following points: in pieces according to the features of the measured object and select the instrument type. First see is measured is dc or ac, so choose dc meter or communication instrument. If the measuring ac, also note is a sine wave or non sine wave; Distinguish between measured exactly average even when measuring, RMS, instantaneous value, or large zui values, for the frequency of communication also note. Pieces according to the measured object and measuring the resistance of the circuit size selection instrument internal resistance. Voltmeter to measure the voltage, internal resistance, the better, the greater the requirements within the voltmeter resistance measured object is greater than 100 times better. Current meter for measuring current, resistance as small as possible, and often require the ammeter resistance is less than the measured object 100 times. Pieces according to the actual needs of the measured object, choosing instrument rating. According to the engineering properties, as long as the measurement results of the range of allowable error in the engineering practice. Common standards and part of the precision measurement, for instance, the available accuracy of 0. 1 to 0. Level 2 of the instrument; In the experimental measurement can be 0. 5 to 1. Level 5 meters; 1 available in the factory. 0 to 5. 0 level instrument. Pieces according to the measured object choice allows rating instrument. Don't use big range of the instrument to measure the small quantity, avoid reading is not allowed. And certainly not with a small range instrument to measure big power, so as not to damage the instrument. So, when choosing instrument, must carefully observe instrument and equipment allowed under the rated voltage, rated current and rated power. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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