Fluke 1625-2 GEO 接地测试仪 Fluke 1625-2 通过 USB 端口提供数据存储和下载能力。 它是独具特色的接地测试仪，可执行所有四种接地接地测量。该接地测试仪只需使用夹子即可测量接地回路电阻。 此方法无需使用接地桩，也无需断开接地杆。 3 极和 4 极电势下降，接地电阻回路测试 4 极土壤电阻率测试 选择性接地杆测试，使用 1 个夹子 无桩接地杆测试，使用 2 个夹子 IP56 保护等级，适用于室外使用 坚固的携带箱 USB 数据存储和传输 自动频率控制 AFC 可识别现有干扰并选择测量频率以最小化其影响，从而提供更准确的接地值 R* 测量计算 55 Hz 时的接地阻抗以便在可能出现接地故障时更准确地反映接地电阻 可调限制，可更快测试 随附 6 节 AA LR 6 电池、2 根测量引线 1.5 m、2 个鳄鱼夹、用户手册。 接地测试
The 1623-2 and 1625-2 earth ground testers are able to measure earth ground loop resistances using only clamps. With this test method, two clamps are placed around the earth ground rod and each are connected to the tester. No earth ground stakes are used at all. A known, fixed voltage is induced by one clamp and the current is measured using the second clamp. Then the tester automatically determines the resistance of the earth ground rod. This test method only works if a bonded earth ground system exists for the building or structure under test, but most are. If there is only one path to ground, like at many residential applications, the Stakeless method will not provide an acceptable value and the Fall of Potential test method must be used.
With Stakeless testing, the earth ground rod does not need to be disconnected — leaving the bonded earth ground system intact during test. Gone are the days of spending time placing and connecting stakes for each earth ground rod on your system — a major time saver. You can also perform earth ground tests in places you have not considered before: inside buildings, power pylons, or anywhere you don"t have access to soil.
The Fluke 1623-2 and 1625-2 GEO Earth Ground Testers offer data storage and download capabilities via USB port. World class accessories will simplify and speed up testing time.
* 3- and 4-pole Fall of Potential, earth resistance loop testing
* 4-pole Soil Resistivity testing
* Selective earth ground rod testing using 1 clamp
* Stakeless earth ground rod testing using 2 clamps
* IP56 rated for outdoor use
* Rugged carrying case
In addition, the Fluke 1625-2 offers these advanced features:
* Automatic Frequency Control AFC — identifies existing interference and chooses a measurement frequency to minimize its effect, providing more accurate earth ground value
* R* measurement — calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault-to earth ground would see
* Adjustable limits — for quicker testing