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上海第四电表厂生产的星牌 PZ64系列(A、B、C、D、E、F、G)3(1/2)位和 PZ95系列(A、B、C)4(1/2)位安装式数字电压表,采用 CMOS 大规模集成电路斩波自稳零运算放大器,可自动补偿失调电压的漂移。所选用的元器件均经过严格的老化、筛选,制造工艺精湛。整机读数清晰,性能稳定可靠,体积小,重量轻,安装方便,是仪器仪表数字化智能化的理想配件,是医学、科学、分析仪器数据采集系统,工业衡量系统非电量数字显示必不可少的显示装置。
Shanghai PQ64 series (A, B, C, D, E, F, G) 3 (1/2) bits and PZ95 series (A, B, C) 4 Installed digital voltmeter, using CMOS large scale integrated circuit chopper self-zeroing op amp, can automatically offset offset voltage drift. Selected components have to undergo a rigorous aging, screening, manufacturing process skills. The whole machine has the advantages of clear reading, stable and reliable performance, small size, light weight and convenient installation. It is an ideal accessory for digitizing intelligent instruments and meters. It is an indispensable data acquisition system of medical, scientific and analytical instruments. Display device.