How to choose the right electrician measuring instrument

Abstract: The information on how to correctly choose and use electrical measuring instruments is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. When we use electrical instruments, due to the imperfect measurement method, we must pay attention to the correct use of electrical measuring instruments, and we need to pay attention to the following points: ◆Select the instrument type according to the nature of the measurement object. First, it depends on whether the measured DC is still. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details on how to correctly choose and use electrician measuring instruments. When we use electrical instruments, due to imperfect measurement methods, we must pay attention to the correct use of electrical measuring instruments, and we need to pay attention to the following points: ◆Select the type of instrument according to the nature of the measurement object. First of all, depending on whether it is DC or AC to be measured, in order to choose a DC instrument or an AC instrument. If measuring the AC quantity, also pay attention to whether it is a sine wave or a non-sine wave; when measuring, it is necessary to distinguish whether the measured value is the average value, the effective value, the instantaneous value, or the maximum value, and also pay attention to the frequency for the AC quantity. ◆Select the internal resistance of the instrument according to the resistance of the measuring object and the measuring line. For a voltmeter that measures voltage, the larger the internal resistance, the better, and the internal resistance of the voltmeter is required to be 100 times greater than the measured object. For an ammeter that measures current, the smaller the internal resistance, the better, and the internal resistance of the ammeter is often required to be 100 times less than the measured object. ◆According to the actual needs of the measurement object, select the instrument level. According to the nature of the project, as long as the error of the measurement result is within the allowable range of the actual project. For example, in commonly used standard and some precision measurements, instruments with an accuracy of 0.1 to 0.2 can be used; in experimental measurements, instruments with grades of 0.5 to 1.5 can be used; in factory production, instruments with grades of 1.0 to 5.0 can be used. ◆Select the allowable rated value of the instrument according to the measurement object. Do not use a large range meter to measure small values ​​to avoid inaccurate readings. Of course, it is not possible to use a small-scale meter to measure a large amount of electricity, so as not to damage the meter. Therefore, when choosing an instrument, you must carefully observe the rated voltage, rated current and rated power that the instrument and equipment are allowed to withstand. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to Correctly Choose and Use Electrician Measuring Instruments'

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