简要说明：皓丰牌的AR907A+兆欧表AR907A+ 100V-2500V产品：估价：0，规格：AR907A+，产品系列编号：齐全

　　AR907A+兆欧表AR907A+ 100V-2500V
AR907A+兆欧表AR907A+ 100V-2500V

绝缘电阻测试仪，通常被称为兆欧表或高阻计，广泛用于测量发电机、马达、电源变压器、配线、电器和其它电气装置（如控制、信号、通信和电源的电缆）的绝缘电阻。它们往往被用于例行维护程序中来指示电机在数月或数年内绝缘电阻的变化。绝缘电阻发生大的变化，就可能预示着潜在的故障。所以，就需要对兆欧表进行定期校准，以确保仪表本身没有随时间发生变化。
Insulation resistance tester, is often called the megohmmeter or high resistance meter, it is widely used in measurement of generators, motors, power transformers, wiring, appliances and other electrical devices (such as control, signal, communication and power supply cable) insulation resistance. They tend to be used for routine maintenance program to indicate the change of the motor insulation resistance in a few months or years. Big changes in the insulation resistance, could herald a potential failure. So, you need to regular calibration of megger, to ensure that the instrument itself did not change over time.