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MEWOI4000C-High Accuracy Earth Ground Resistance/Soil resistivity Tester Meter

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MEWOI Co.,Ltd

MEWOI4000C-High Accuracy Earth Ground Resistance/Soil resistivity Tester Meter

Country/Region china
City & Province shenzhen guangdong
Categories Other Excess Inventory

Product Details

INTRODUCTION

MEWOI4000C Earth Resistance Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage, AC voltage. Adopting the latest digital and micro-processing technology, precise 4-pole, 3-pole and simple 2-pole method for earth resistance measurement, importing FFT and AFC technology, with a unique function of anti-interference capability and the ability to adapt to the environment, consistency of repeat testing, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment and other earth resistance, soil resistivity, earth voltage, AC voltage measurement.

 

MEWOI4000C Earth Resistance Soil Resistivity Tester is composed of host machine, monitoring software, testing wires, auxiliary ground pillars, communication wires and others. The large LCD display of host machine is with blue backlight and bar graph indicating that can be seen clearly. At the same time it can store 300 sets of data, fulfilling historical inquiry and online real-time monitoring through monitoring software, dynamic display, alarm indicator, and with the functions like historical data access, reading, preservation, report forms, printing and so on.

Technical Specifications

 

1.Base Conditions and Working Conditions

Influence QuantityBase ConditionWorking ConditionsRemark
Ambient Temp23℃±1℃-10℃-40℃----
Ambient Humidity40%-60%<80%----
Working Voltage9V±0.1V9V±1.5VrC,rP
Auxiliary Earth Resistance<100Ω<30kΩ----
Interference Voltage----<20V----
Interference Current----<2A 
Electrode Distance when measuring Ra>5da>5d----
Electrode Distance when measuring ρa>20ha>20h----

2.Intrinsic error and performance indicators under base conditions

CategoryMeasurement RangeIntrinsic ErrorResolution

Earth Resistance

(R)

0.00Ω-30.00Ω±2%rdg±3dgt0.01Ω
30.0Ω-300.0Ω±2%rdg±3dgt0.1Ω
300Ω-3000Ω±2%rdg±3dgt
3.00kΩ-30.00kΩ±4%rdg±3dgt10Ω

Soil Resistivity

(ρ)

 

0.00Ωm-99.99Ωm

According to the precision of R

(ρ=2πaR

a:1 m-100m,

π=3.14)

0.01Ωm
100.0Ωm-999.9Ωm0.1Ωm
1000Ωm-9999Ωm1Ωm
10.00kΩm-99.99kΩm10Ωm
100.0kΩm-999.9kΩm100Ωm
1000kΩm-9000kΩm1kΩm
Earth VoltageAC 0.0-600V±2%rdg±3dgt0.1V

Note: 1). When rC max or rP max, additional error≤±3%rdg±5dgt.

(rC max: 4kΩ+100R<50kΩ, rPmax: 4kΩ+100R<50kΩ)

2). When 5V interference voltage, additional error≤±5%rdg±5dgt.

SELECTION GUIDE

 

ModelRangeResolutionclamp sizeRS232Data StorgeAudible and visible alarmOther
MEWOI3000B+0.01Ω-200Ω0.01Ω65mm×32mmoptional99sets 
MEWOI3100B+ø32mm 
MEWOI3000+0.01Ω-1200Ω0.01Ω65mm×32mmoptional99sets 
MEWOI3100+ø32mm 
MEWOI3000D+

0.01Ω-1200Ω

0.00-20.00A

0.01Ω,0.05mA65mm×32mmoptional99sets 
MEWOI3100D+ø32mm 
MEWOI3800C0.01Ω-200Ω0.01Ω60mm*30mmAppoint with RS485 communication interface, provide standard MODBUS-RTU communication protocol×  
MEWOI3800D0.01Ω-200Ω0.01Ω60mm*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,0.1Vø68mm2000sets 2/3/4-wires,selection & dual clamp method to measure the earth resistance,soil resistivity,earth voltage,AC voltage,AC leakage current,warning function.
 

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