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未命名_11.jpgphi32_n.giftruerms_n.pngdatahold_n.gifINTRODUCTION

Click to download: MEWOI3100B+Manual

Click to download:  MEWOI3100B+ Color Page

Click to download: Field Application Guide

Click to download: Selection Map

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MEWOI3100B+ 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. MEWOI3100B+ 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; MEWOI3100B+ Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead.

Technical Specification

FunctionGround resistance test, Loop resistance test
Power Supply6VDC 4 PCS of LR6 Alkaline 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 SizeΦ32mm
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)

APPLICATION

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SELECTION GUIDE

Digital Earth Resistance Clamp Meter

Click "blue"marked model No. for detailed Specificaiton

ModelRange
Resolution
clamp sizeRS232Data StorgeAudible and visible alarm Other

MEWOI3000B+

MEWOI3000B+.jpg

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

MEWOI3100B+

MEWOI3100B+.jpg

ø32mm

MEWOI3000+

MEWOI3000B+.jpg

0.01Ω-1200Ω   0.01Ω65mm×32mmoptional 99sets

MEWOI3100+

MEWOI3100B+.jpg

ø32mm

MEWOI3000D+

MEWOI3000B+.jpg

0.01Ω-1200Ω 

0.00-20.00A  

0.01Ω,0.05mA  65mm×32mmoptional 99sets

MEWOI3100D+

MEWOI3100B+.jpg

ø32mm

MEWOI3200

MEWOI3200.80.jpg

0.01Ω-1500Ω 

0.00-40.00A  

0.01Ω,0.05mA  65mm×32mm99setsRechargable Batteries

MEWOI3800C

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0.01Ω-200Ω    0.01Ω60mm*30mmAppoint with RS485 communication interface, provide standard MODBUS-RTU communication protocol×

MEWOI3800D

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0.01Ω-200Ω  0.01Ω60mm*30mm×
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.

MEWOI4000

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0.01Ω~2000Ω;

 0~600V

0.01Ω,1V
400sets
2/3-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
300sets
2/3/4-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,0.1Vø68mm2000sets
2/3/4-wires,selection & dual clamp method to measure the earth resistance,soil resistivity,earth voltage,AC voltage,AC leakage current,warning function.

Technical Specification

FunctionGround resistance test, Loop resistance test
Power Supply6VDC 4 PCS of LR6 Alkaline 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 SizeΦ32mm
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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