Use clamp ampere meter to measure the current and check if the heating power is normal.

用钳形表测量电流，检查发热功率是否正常。

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This added voltage is mainly power line frequency and its effect on the voltmeter reading will depend upon the normal-mode rejection capability of the meter.

这个相加的电压主要为电源频率的信号，其对于电压表读数的影响决定于电压表的串模抑制能力。

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It describes basic condition of instrument and meter normal working, analyse all kinds of disturbing factors, raise its design and selection and environment requirement.

论述了仪器仪表正常工作的基本条件，分析影响(干扰)其正常工作的各种因素，提出仪表设计造型及对环境的要求。

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Then the utility would need to physically repair or replace each meter to return it to normal operation.

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In a few minutes Lorelei brought out the peak flow meter, and when Davis blew into it he was back nearly to his normal reading of 380.

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