The BOCR2000 series clamp type grounding resistance tester is mainly used for measuring the grounding resistance of power, telecommunications, meteorological, and other electrical equipment When using this method for measurement, there is no need for auxiliary electrodes and there is no electrode placement error The consistency of the results is very good during repeated testing The results of the comparative test between the clamp type grounding resistance tester and the traditional voltage current method by relevant national departments indicate that it can completely replace the traditional grounding resistance testing method and accurately measure the grounding resistance In practical applications, the 2000 series clamp type grounding resistance meter has gained recognition from customers in various industries and different usage environments

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Compared with traditional voltage and current testing methods, the superior performance of the 2000 series clamp type grounding resistance meter is as follows:

1. Easy to operate:

Simply wrap the clamp of the caliper around the tested grounding wire to read the grounding resistance value from the LCD screen

The traditional voltage and current testing method requires the grounding wire to be separated from the grounding system, and the voltage and current poles must be driven into the soil at a specified distance as auxiliary electrodes for measurement

2. Accurate measurement:

The accuracy of traditional voltage and current testing methods depends on the position between auxiliary electrodes and their relative position to the grounding body In addition, the unevenness of soil resistivity between the voltage and current poles and the grounding body can affect the measurement results If the position of the auxiliary electrode is limited and cannot meet the calculated value, it will result in the so-called polarization error For the same grounding body, different auxiliary electrode positions may cause a certain degree of dispersion in the measurement results This affects the accuracy of the measurement There is no polarization error As long as the customer first measures the test ring attached to this product during measurement, if the reading is accurate, then the subsequent measured ground resistance value is accurate

3. Unrestricted by the surrounding environment:

The traditional voltage and current testing method requires the setting of two auxiliary electrodes with relative position requirements, which has requirements for the surrounding environment, otherwise it will affect the accuracy of the measurement With the development of urbanization in our country, it is sometimes difficult to find soil around the tested grounding body, as they are all covered with cement. Moreover, it is even more difficult to find soil that meets the requirements of relative position

The clamp type grounding resistance meter does not have these limitations As long as one operation of opening and closing the jaws is performed, the accurate grounding resistance value can be obtained

4. Other:

In certain situations, it is possible to measure ground faults that cannot be measured by traditional methods

For example, in a multi-point grounding system (such as towers, etc.), some buildings also use more than one grounding body. Although the grounding resistance of their grounding bodies is qualified, the connecting wire between the grounding body and the overhead ground wire may have excessive contact resistance or even open circuit after prolonged use Although the grounding resistance of its grounding body meets the requirements, the grounding system is unqualified

Traditional methods cannot measure this situation Using a clamp type grounding resistance meter can accurately measure, because the clamp type grounding resistance meter measures the comprehensive value of the grounding body resistance and the line resistance

1Model Description

2Limitations and Accuracy

3. Basic parameters

Power supply: 6VDC (4 No. 5 alkaline dry batteries)

LCD display: 4-digit LCD digital display, length and width 47mm × 28.5mm

Jaw opening size: 35mm;

Clamp gauge mass: 1160g; (including battery)

Clamp size: length, width, and thickness 285mm × 85mm × 56mm

Shifting: Fully automatic shifting

Single measurement time: 0.5 seconds