MI 3290大地分析仪是一种便携式,电池或电源供电的测试仪器,具有优良的IP保护(IP 54开放式外壳),用于测量各种高能和非高能物体的地电阻,比地电阻和地电位。用户可以选择不同的方法,从经典的3线接地电阻测量到一个或四个夹钳方法,用于塔的测量。他有不同频率方法的测量方法选择:单频或扫频从55赫兹到15千赫,高频方法与25千赫和脉冲方法模拟雷击。高电气噪声抗扰性使该仪器最适合工业环境。仪器有多套,是不同配件和测量功能的组合。•接地电阻2、3、4极;•选择性接地电阻(1 x钳);•接地电阻(2 x铁钳);•比地电阻(温纳和斯伦贝谢方法);•高频接地电阻(25khz, acc。 to IEEE_Std 81); •Earth Resistance of mono pylons with 10 m flex clamp; •Earth Resistance of multi–leg pylons with up to four flex clamps; •Current measurement (Iron, flex clamps); •Low Ohm measurement 7 mA and 200 mA; •Earth Potential; •Step and contact measurements; •Impulse Earth measurement 10/350 µs. Key features • Possibility of performing all types of earth measurements with a single instrument. • Analysis of earth impedance as a function of the frequency due to a wide measurement frequency band (55 Hz ... 15 kHz). • Earth measurements on pylons with protective earth cable connected.