how to improve the success rate of meter reading methods and measures. Tenth, eleventh chapter explains in electronic energy meter performance testing in confusing error problem.
2013年8月16日星期五
Household meter selection
Household meter choices, mainly from product quality, meter function, measurement accuracy is selected.
1, as in the case of other factors, the product quality is very important, it is not necessarily a good expensive, good certain power transformers , but better to choose the brand manufacturers, there is a certain quality of protection, will not use a few day burned.
2, the meter functions. The meter is now there have been many kinds of functions, active tables, reactive watches, Voltage stabilizer , electronic watches, need to scale, multi-table, TOU table and so on. Here it is necessary to see the specific use request. Now multifunctional electronic watches, can integrate multiple measurement functions, but
Is expensive. General mechanical watch can be measured separately one or several functions, the price is relatively cheap. Critical look needs circumstances.
3, the measurement accuracy. Different requirements, the meter accuracy required is not the same. Average household electricity, with more than 2.0 meter accuracy is sufficient, and in large enterprises, mark the meter, the need is 0.5, or even 0.2 meter accuracy. The higher the accuracy, the price is more
High. This point should also look to use needs.
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