MEWOI3000B+-0.01-200Ω Clamp earth tester,clamp on ground tester,earth ground tester,earth resistance clamp meter

0.01-200Ω/65*32mm Clamp Earth Tester

  • Main Features:: 1,Measuring Range:0.01-200Ω,2,Stored Data:99 sets,3,Clamp Size:65mm×32mm,4,Power Consumption:Maximum 50mA, Longer battery life
  • Model No.:: MEWOI3000B+
  • Name:: MEWOI3000B+-0.01-200Ω Clamp Earth Resistance Tester/Meter,earth ground tester,GEO Tester

Contact Us for QuotationEmail:mewoi@mewoi.comWhatsapp: +8618620373879

MEWOI3000B+-0.01-200Ω Clamp earth tester,clamp on ground tester,earth resistance tester

INTRODUCTION

Click to download:MEWOI3000B+Manual

Click to download: MEWOI3000B+ Color Page

Click to download: Field Application Guide

Click to download: Selection Map

MEWOI3000B+.800.jpg

MEWOI3000B+ 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. MEWOI3000B+  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; MEWOI3000B+ Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead.

APPLICATION

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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.

MEWOI OEM/ODM  Instruments Manufacturer

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.

MEWOI OEM/ODM  Instruments Manufacturer

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)

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


Technical Specification

FunctionGround resistance test, Loop resistance test
Power Supply6VDC 4 PCS of LR6 lkaline batteries
Resistance Range0.01-200Ω
Resistance Resolution0.001Ω
Highest Resistance Accuracy±1%±0.01Ω
Data memory99 Sets
Alarm Threshold Setting RangeResistance: 1-199Ω
Alarm Sound and Light“Beep-beep-beep” alarm tone, Alarm Symbol Flashing, Press AL key to turn on, turn off Alarm or set Alarm Threshold.
Interference Signal Recognition“Beep-beep-beep” tone, NOISE symbol blinking
Working Temperature and Humidity-20℃-55℃;20%RH-90%RH(Please storge and Operate the instrument at its ranges)
LCD Screen4 Digits LCD display, Screen L×W: 47mm×28.5mm
Clamp Size65mm×32mm
Clamp Opening Extent32mm
Tester Weight1160g (With batteries)
Clamp DimensionL×W×T: 285mm×85mm×56mm
Protection LevelDual Insulation
Structural FeatureClamp CT
ShiftingAutomatic shifting
External magnetic field<40A/m
External electrical field<1V/m
Single measurement time0.5 second
Resistance measurement frequency>1KHz
Measured current frequency50/60Hz Automatic measurement
Low Battery IndicationLow battery symbol displays when battery is lower then 5.3V
Memory Full IndicationMEM symbol blinks when all 99 sets memory is full
Over Range IndicationOut of range indication “OLΩ”, “L0.01” or “OL A”
Auto Power-off5 minutes after Boot up
Power ConsumptionMax 50mA either in booting up or normally working, Continuously working for 30 hours
RS232 Interface (Optional)The data stored in the meter are uploaded to the computer through RS232 interface and data wire, Then generate report files
AccessoriesMeter: 1 piece, Test Ring: 1 Piece, Meter Suitcase: 1 Piece , batteries: 4 PCS ( LR6)

Meter: 1 piece, Test Ring: 1 Piece, Meter Suitcase: 1 Piece , batteries: 4 PCS ( LR6)

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