CH400变压器电量测量仪系列可广泛用于各种小型变压器或整流器电源等厂家的生产流水线测试，实验室试品试验等场合。该系列仪器采用数字同步采样及微机技术，能准确测量变压器的初级电压、电流、功率、功率因数的真有效值，次级电压、电流的真有效值（交流）或平均值（直流），次级电压纹波的真有效值。内置电子负载能方便的进行空、负载转换测试。具有测试速度快、精度高、使用方便、显示直观等优点。

CH400 transformer coulometer can be widely applied in test on production line of small manufacturer of transformer or rectifier power or in labs. The meter adopts digital synchronous sampling and micro technology to accurately measure true RMS of transformer’s primary voltage, current, power, power factor, true RMS (AC) or average (DC) of secondary voltage and current, true RMS of secondary voltage ripple. Built-in electric load can make the instrument conveniently perform idling/load conversion. The meter has the characteristics of having high speed, high accuracy, easy operation and direct display.