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China

Equipment goods

Clamp on Earth Resistance Tester/Meter

Quantity : 1Set,1000p Price : 445.13USD

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INTRODUCTION

MEWOI3000D+ Clamp Earth Resistance Tester is widely applied in ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, which means safer and faster. MEWOI3000D+ Clamp Earth Resistance Tester can measure the ground fault which can not be measured by traditional method, can apply in the occasion where traditional methods are unworkable; MEWOI3000D+ Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead. What's more, MEWOI3000D+ Series tester can measure the leakage current of ground wire.

APPLICATION

Why earth resistance can be found by only clamping it?

Rx, is defined as earth resistance under test, and R1, R2... Rn are defined as earth resistance of other measuring objects.

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These earth resistances, R1, R2, Rn can be considered that they are connected in parallel.
And they can be regarded as a combined resistance Rs. The Rs can be regarded small enough against Rx since a combined resistance consists of several resistances. Following is an equivalent circuit diagram of this circuit.

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Voltage V is applied to the object (Resistance Rx) measured from the voltage injection transformer CT1, and the current I corresponding to the earth resistance is flowed.
The current I is detected with detection transformer CT2, and object (Resistance Rx) measured can be put out by the calculation. (refer to the right diagram)

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SELECTION GUIDE

Digital Earth Resistance Clamp Meter

Click "blue"marked model No. for detailed Specificaiton

Model	Range	Resolution	clamp size	RS232	Data Storge	Audible and visible alarm	Other
MEWOI3000 B+	0.01Ω-200Ω	0.01Ω	65mm×32mm	optional	99sets	√
MEWOI3100B+	0.01Ω-200Ω	0.01Ω	ø32mm	optional	99sets	√
MEWOI3000+	0.01Ω-1200Ω	0.01Ω	65mm×32mm	optional	99sets	√
MEWOI3100+	0.01Ω-1200Ω	0.01Ω	ø32mm	optional	99sets	√
MEWOI3000D+	0.01Ω-1200Ω 0.00-20.00A	0.01Ω,0.05mA	65mm×32mm	optional	99sets	√
MEWOI3100D+	0.01Ω-1200Ω 0.00-20.00A	0.01Ω,0.05mA	ø32mm	optional	99sets	√
MEWOI3800C	0.01Ω-200Ω	0.01Ω	60mm*30mm	Appoint with RS485 communication interface, provide standard MODBUS-RTU communication protocol	×
MEWOI3800D	0.01Ω-200Ω	0.01Ω	60mm*30mm		×		LCD display,warning function.
MEWOI4000	0.01Ω～2000Ω; 0～600V	0.01Ω,1V		√	400sets		2/3-wires measurement of earth resistance/voltage
MEWOI4000C	earth resistance: 0.01Ω～30.00KΩ; soil resistivity: 0.01Ωm～9000KΩm; 0～600V	0.01Ω,0.01Ωm,1V		√	300sets		2/3/4-wires measurement of earth resistance,soil resistivity,and earth voltage
MEWOI4200	earth resistance: 0.01Ω～30.00KΩ;AC Leakage current: 0.00mA~600A; soil resistivity: 0.01Ωm～9000KΩm;Earth Voltage: 0.0~100.0V,dual clamp: 0.01Ω-100Ω	0.01Ω,0.01Ωm,0.01A,0.1V	ø68mm	√	2000sets		2/3/4-wires,selection & dual clamp method to measure the earth resistance,soil resistivity,earth voltage,AC voltage,AC leakage current,warning function.

Location : Address:Room1904-1906,Tower A,Tian an International Building,Renmin Nan Road,LuoHu,ShenZhen,China, 518005 shenzhen,
Contact : Billy MEWOI, +86 18620373879

Billy.MEWOI

3.6/5

Retail

Registered since 25 May 2016

Identification number of the company : 91440300359501469F

Billy.MEWOI

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