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由上海新华无线电厂研制的KJ——2031型数字式电表校验仪已于最近投产。该仪器具有数字显示、误差直读和多量程、宽范围、高稳定度及低失真度的特点;由于采用以“10000”为基数的取样法,又具有分档细密(复盖系数大于2.5)的特点,适用于校验 0.5级各类指针式及31/2数字式电压、电流表。该仪器由振荡器、功放、交直流变换器、41/2数字式面板表,项目及量程转换和+5 V、±15V、±40V稳压及供电电源等部分组成。
KJ - 2031 digital meter calibrator developed by Shanghai Xinhua Radio Factory has been put into production recently. The instrument has the characteristics of digital display, error direct reading and multi-range, wide range, high stability and low distortion; due to the sampling method based on “10000 ”, it has sub-file fineness 2.5) features, suitable for checking all kinds of 0.5 level pointer and 31/2 digital voltage and ammeter. The instrument consists of oscillator, amplifier, AC-DC converter, 41/2 digital panel meter, project and range conversion and +5 V, ± 15V, ± 40V regulator and power supply and other components.