MEWOI4200D-High performance Earth Resistance Soil Resistivity Tester

OEM/ODM Testing Instruments Manufacturer

  • Main Features:: Grounding resistance test Grounding voltage test Soil resistivity test
  • Model No.:: MEWOI4200D
  • Name:: MEWOI4200D-Earth tester
Contact Us for QuotationEmail:mewoi@mewoi.comWhatsapp: +8618620373879
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INTRODUCTION

MEWOI4200D Earth Resistance Soil Resistivity Tester is specially designed and manufactured for on-site measurement of earth resistance, soil resistivity, earth voltage, AC voltage. Apply digital processing technology, precision 4-wire method, 3-wire method and simple 2-wire method to measure grounding resistance. Adopt FFT (fast Fourier transform) technology, AFC (automatic frequency control) technology, automatic identification of interference and selection of measurement frequency. The tester case is made of waterproof protection box, anti-collision, anti-drop, waterproof (protection grade IP65), strong and durable, and also equipped with a large-capacity rechargeable lithium battery pack, especially suitable for outdoor construction. Widely used in power, telecommunications, meteorology, oil fields, construction, lightning protection and industrial electrical equipment, such as grounding resistance, soil resistivity, grounding voltage, AC voltage.

MEWOI4200D Earth Resistance Soil Resistivity Tester is composed of host machine, monitoring software, testing wires, auxiliary ground pillars, communication wires etc. The large LCD display of host machine, with white 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 as historical data access, reading, preservation, report forms, printing and so on.

MEWOI4200D Earth Resistance Soil Resistivity Tester also named: Precision Earth Resistance Tester, 4-pole Earth Resistance Tester,2/3/4-pole Earth Resistance Tester, Soil Resistivity Tester

Reference Conditions And Working Conditions

 Influence Constant

 Base Condition

 Working Conditions

 Remark

 Ambient Temp

 23℃±1℃

 -10℃-40℃

 ----

 Ambient Humidity

 40%-60%

 <80%

 ----

 Working Voltage

 DC 7.8V±0.1V

 DC 7.8V±0.6V

 ---

 Auxiliary Earth Resistance Value

 <100Ω

 <30kΩ

 rC、rP

 InterferenceVoltage

 Non

 <20V

 ----

 InterferenceCurrent

 Non

 <2A

 ----

 Electrode Distance of measuring R

 a>5d

 a>5d

 ----

 Electrode Distance of measuring ρ

 a>20h

 a>20h

 ----

Technical Specifications

 Function

 2/3/4-wire method measure earth resistance, soil resistivity; measurement  ofearth voltage, AC voltage

 Power Supply

 DC 7.4V 2600mAh rechargeable lithium battery, full charge about 8.4V

 MeasurementRange

 Earth Resistance: 0.00Ω-30.00kΩ

 Soil Resistivity: 0.00Ωm-9000kΩm

 Earth Voltage:0V~600V

 Measurement Mode

 Precision 4-wire, 3-wire, simple 2-wire measurement of earth resistance

 Measurement Method

 Earth Resistance: rated current change-pole method, test current 20mA Max

 Soil Resistivity: 4-pole method (Wenner method)

 Voltage to ground: average rectification(between P(S)-ES interface)

 Test Frequency

 128Hz/111Hz/105Hz/94Hz(AFC)

 Short-circuit Test Current 

 AC 20mA max

 Open-circuit Test Current

 AC 40V max

 Test Voltage Wave

 Sine wave

 Electrode Distance Range

 Can be set 1m-100m

 Shift

 Earth resistance: 0.00Ω-30.00kΩ automatic shift

 Soil Resistivity: 0.00Ωm-9000kΩm automatic shift

 Backlight

 Controllable white screen backlight, suitable for dim places

 Display Mode

 4-digital super-large LCD display, white screen backlight

 Measurement Indication

 During measurement, LED flashes, LCD count down display, progress bar indication

 LCD  Dimension

 128mm×75mm

 LCD display Dimension

 124mm×67mm

 Meter Dimension

 280mm(L)×260mm(W)×160mm(H)

 Standard Test Wire

 4 pcs:  red 20m, black20m, yellow10m, and green 10m

 Simple Test Wire

 2 pcs:  red1.6mand black1.6m

 Auxiliary Grounding Rod

 4 pcs: Φ10mm×150mm

 Measurement Time

 Voltage to ground: about 3 times/second

 Earth resistance, soil resistivity: about 5 seconds/time

 Measurement Times

 Over 5000 times (Short-circuit test, measurement interval time should be at least 30 seconds)

 Line Voltage

 below AC 600V

 Communication Interface

 WithUSB interface, software monitoring, storage data can be uploaded to computer, saved or printed.

 Communication Cable

 1pcs USB communication cable, length1.5m

 Data Storage

 300 sets, “MEM” symbol storage indication,display “FULL” symbol indicate storage full

 Data Hold

 Data hold function: “HOLD” symbol display

 Data Access

 Data read function: “READ”symbol display

 Overflow Display

 Exceed measure range overflow function: “OL” symbol display

 Interference Test

 Recognize interference signal automatically, “NOISE” symbol display when interference voltage exceed 5V

 Auxiliary Ground Test

 With auxiliary earth resistance test function, 0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ)

 Alarm Function

 Measurement value exceeds alarm setting value, will “Toot-toot-toot” alarm hint

 BatteryVoltage

 When power voltage lower than DC 7.2V±0.1V, display low power voltage symbol,and remind to replace battery

 Working Current

 Standby: about 20mA (Backlight close)

 Boot up and with backlight: about 45mA (25mA  backlight close)

 Measurement: about 100mA (Backlight close)

 Weight

 Tester: 915g

 Test wires:1560g

 Auxiliary ground rods:935g(4pcs)

 WorkingTemperature & Humidity

 -10℃-40℃, below 80%rh

 Storage temperature & humidity

 -20℃-60℃, below 70%rh

 Overload Protection

 Measurement of earth resistance: between each interfaces ofC(H)-E、P(S)-ES,AC 280V/3 seconds

 Protection Level IP65 (close the case)

 Insulation Resistance

 Over 20MΩ (betweencircuit and enclosureit is 500V)

 Withstand Voltage

 AC 3700V/rms (Between circuit and enclosure)

 Electromagnetic Features

 IEC61326(EMC)

 Suitable  Safty Standard

 IEC61010-1 (CATⅢ300V、CAT IV 150V、Pollution 2), IEC61010-031,  IEC61557-1 (Earth resistance), IEC61557-5 (Soil resistivity), JJG 366-2004

Intrinsic error and performance indicators under base conditions

Measurement Function

MeasurementRange

Accuracy

Resolution

Earth Resistance

(R)

0.00Ω-30.00Ω

±2%rdg±3dgt

0.01Ω

30.0Ω-300.0Ω

±2%rdg±3dgt

0.1Ω

300Ω-3000Ω

±2%rdg±3dgt

3.00kΩ-30.00kΩ

±4%rdg±3dgt

10Ω

Soil Resistivity

(ρ)


0.00Ωm-99.99Ωm

(ρ=2πaR a:1 m~100m;π=3.14)

0.01Ωm

100.0Ωm-999.9Ωm

0.1Ωm

1000Ωm-9999Ωm

1Ωm

10.00kΩm-99.99kΩm

10Ωm

100.0kΩm-999.9kΩm

100Ωm

1000kΩm-9000kΩm

1kΩm

Earth Voltage

AC 0.0-600V

±2%rdg±3dgt

0.1V

Accessories

Host
1
Handbag1
Grounding Rods2
Software CD1
USB Cable1
20M Cable2
10M Cable2
Test Wires
2
Charger1
Manual1

MEWOI OEM/ODM  Instruments Manufacturer

SELECTION GUIDE

Digital Earth Resistance Clamp Meter

Click "blue"marked model No. for detailed Specificaiton

ModelRange
Resolution
clamp sizeRS232Data StorgeOther

MEWOI3000B+

MEWOI3000B+.jpg

0.01Ω-200Ω   0.001Ω65mm×32mmoptional
99sets

MEWOI3100B+

MEWOI3100B+.jpg

ø32mm

MEWOI3000B

MEWOI OEM/ODM  Instruments Manufacturer

55mm×32mm

MEWOI3000

MEWOI OEM/ODM  Instruments Manufacturer

0.01Ω-1000Ω0.001Ω55mm×32mm
99sets

MEWOI3000+

MEWOI3000B+.jpg

0.01Ω-1200Ω 0.001Ω65mm×32mmoptional99sets

MEWOI3100+

MEWOI3100B+.jpg

ø32mm

MEWOI3000D

MEWOI OEM/ODM  Instruments Manufacturer

0.01Ω-1000Ω

0.00-30.00A

0.001Ω,0.05mA 55mm×32mm
99sets

MEWOI3000D+

MEWOI3000B+.jpg

0.01Ω-1200Ω

0.00-20.00A 

0.001Ω,0.05mA 65mm×32mmoptional99sets

MEWOI3100D+

MEWOI3100B+.jpg

ø32mm

MEWOI3200

MEWOI3200.80.jpg

0.01Ω-1500Ω

0.00-40.00A 

0.001Ω,0.05mA 

65mm×32m

m

99setsRechargable Batteries

MEWOI3800CA

MEWOI3800CA.80.jpg

0.01Ω-100Ω 0.01Ω60mm*30mm,(Closed)Appoint with RS485 communication interface, provide standard MODBUS-RTU communication protocol×

MEWOI3800DA

MEWOI3800DA.80.jpg

0.01Ω-100Ω 0.01Ω

60mm*30mm

(Closed),

×LCD display,warning function.

MEWOI3800LC

MEWOI3800LC.80.jpg

0.01Ω-200Ω   0.01Ω

Split  Type

56mm×26mm

Wired network: RS232,RS485 standard communication protocol

Wireless network: RS232、RS485、GSM communication protocol

×

MEWOI3800LD

MEWOI3800LD.80.jpg

0.01Ω-200Ω 0.01Ω

Split Type

56mm×26mm

×LCD display,warning function.

MEWOI3900

MEWOI OEM/ODM  Instruments Manufacturer

0.01Ω~2000Ω0.01Ω


2/3-wires measurement

Online

MEWOI3900C

MEWOI OEM/ODM  Instruments Manufacturer

0.01Ω~2000Ω0.01Ω


2/3-wires measurementOnline,GPRS

MEWOI4000

MEWOI4000.80.jpg

0.01Ω~2000Ω;

0~600V

0.01Ω,1V
400sets2/3-wires measurement of earth resistance/voltage

MEWOI4000D

MEWOI OEM/ODM  Instruments Manufacturer

0.01Ω~2000Ω;

0~600V

0.01Ω,1V
400sets2/3-wires measurement of earth resistance/voltage

MEWOI4000C

MEWOI4000C.80.jpg

earth resistance:0.01Ω~30.00KΩ;

soil resistivity:0.01Ωm~9000KΩm;

0~600V

0.01Ω,0.01Ωm,1V
300sets2/3/4-wires measurement of earth resistance,soil resistivity,and earth voltage

MEWOI4200D

MEWOI OEM/ODM  Instruments Manufacturer

earth resistance:0.01Ω~30.00KΩ;

soil resistivity:0.01Ωm~9000KΩm;

0~600V

0.01Ω,0.01Ωm,1V
300sets2/3/4-wires measurement of earth resistance,soil resistivity,and earth voltage

MEWOI4200

MEWOI4200-1_80.jpg

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,0.1Vø68mm2000sets2/3/4-wires,selection & dual clamp method to measure the earth resistance,soil resistivity,earth voltage,AC voltage,AC leakage current,warning function.

MEWOI4300D

MEWOI OEM/ODM  Instruments Manufacturer

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,0.1Vø68mm2000sets2/3/4-wires,selection & dual clamp method to measure the earth resistance,soil resistivity,earth voltage,AC voltage,AC leakage current,warning function.

MEWOI4250

MEWOI OEM/ODM  Instruments Manufacturer

Ground resistance:0.10Ω ~ 200Ω(4 clamp method)

Ground resistance ( R ):0.10Ω ~ 20KΩ

Soil resistivity ( ρ )0kΩm~9000kΩm

AC current (A~)1mA~500.0A

Ground voltage (V~)0.0V~200.0V

0.01Ω,0.01Ωm,0.01mA,0.1Vø68mm100setsUntie-free tower grounding resistance tester


label: Earth-tester
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