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数字式多用电表(以下简称数字表)是近年来发展起来高科技数码产品,它是传统的机械指针式仪表的更新换代产品.数字表有很多独特的优点表现在:1.测量精度高以型号 DT9208A 的数字表为例,其直流电压挡和直流电流挡的测量精度分别为±0.5%和±0.8%,欧姆挡精度为±0.8%.目前中学物理实验经常用的指针式多用电表的直流电压、电流精度多为±2.5%,欧姆挡的精度则更低.2.测量项目多 DT9208A 型数字表除能测量直流电压、直流电流、交流电压外,还能直接测量交流电容、温度(与标准附件热电偶连接)、频率、逻辑电平
Digital Multimeter (hereinafter referred to as digital meter) is a high-tech digital product developed in recent years. It is a replacement product of traditional mechanical pointer instruments. Digital watches have many unique advantages: 1. High measurement accuracy with model number DT9208A digital watch, for example, its DC voltage and DC current block measurement accuracy of ± 0.5% and ± 0.8%, ohmic block accuracy of ± 0.8%. High school physics experiments often used pointer multimeter DC voltage Accuracy of ±2.5% in current accuracy and ohmic block are lower. 2. Measurement items Many DT9208A digital meters can measure AC voltage, DC current, AC voltage, and AC capacitors and temperature (with standard Accessories thermocouple connection), frequency, logic level