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MEWOI4000-2wires/3wires measurement digital earth resistance tester,GEO Tester, Ground tester

MEWOI4000-2wires/3wires measurement digital earth resistance tester,GEO Tester, Ground tester

2023-07-21 17:43:04  

2/3wires measurement digital earth resistance tester

  • Main Features : 1. Earth resistance measurement, Range: 0.010Ω~2000Ω 2. Resolution: 0.01Ω 3. Accuracy: ±2%rdg±3dgt 4. Earth voltage measurement,Range: AC 0~600V 5. Resolution:1V 6. Data storage: 400 sets 7. Alarm function: audible and visual alarm
  • Serial No. :
Contact Us For QuotationEmail:  464560351@qq.comWhatsapp&Wechat:+8618620373879

INTRODUCTION

MEWOI4000 DigitalEarth Resistance Tester specially designed and manufactured for the field measurement of ground resistance, adopts digital and micro-processing technology, 3 wire or 2 wire method to measure ground resistance, with unique calibration function for wire resistance, anti-interference ability and environmental adaptability, to ensure the long-term measurement of high precision, high stability and reliability; The instrument out shell adopts waterproof protection case, anti-collision, anti-fall, waterproof (protection grade IP65),which is strong, safe and durable, the instrument is also equipped with large capacity rechargeable lithium battery pack, especially suitable for outdoor construction site to use.It is widely used in measuring ground resistance of electric power, telecommunication, meteorology, oil field, construction, lightning protection and industrial electrical equipment.

MEWOI4000 DigitalEarth Resistance Tester has the unique function of wire resistance calibration, and it is more accurate to measure the low value ground resistance in the field, which can avoid the error caused by the change of wire resistance in the test line for a long time usage.It can avoid errors caused by incomplete insertion of test line into instrument interface or bad contact.It can avoid the error caused by the user to change or lengthen the test line..

MEWOI4000 Digital Grounding Resistance Tester is composed of host machine, monitoring software, test wires, 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 400 sets of data, realize historical inquiry and online real-time monitoring by monitoring software, dynamic display, with the indicator of max/min/average value, and with alarm value setting and  alarm indicator functions, and with the functions as historical data access, reading, preservation, report forms, printing and so on.

SPECIFICATION

Measurement Range and Accuracy

Measurement FunctionRangeAccuracyResolution
Earth Resistance0.01Ω~20Ω±2%rdg±3dgt0.01Ω
0.1Ω~200Ω(Auxiliary grounding resistance 100Ω±5%, Votage to ground<10V)0.1Ω
1Ω~2000Ω
Earth Voltage0~600V AC±2%rdg±3dgt1V

(Note: 23oC±5oC,below75%rh)



Technical Specifications

FunctionDescription
Function Measurement of earth resistance, voltage to earth
Power Supply DC 9V Alkaline dry cell LR14 1.5VX6pcs, continues working 300 hours
Backlight Controllable screen backlight, suitable for dim places
Measuring Mode Precision 3-wire measurement, simple 2-wire measurement
Measuring Method Earth Resistance: rated current change-pole method, measurement current 20mA Max
Earth Voltage: Average rectification
Test Frequency500Hz
Short Circuit Test CurrentAC 10mA max
Data Mode Average value, maximum value, minimum value
Wire Resistance Verification To avoid errors caused by incomplete insertion of test wire into instrument interface or poor contact or replacement of extended test wire by users, so as to make the grounding resistance measurement more accurate
Display Mode 4-digital super-large LCD display, white screen backlight
Measure Indicator LED flash indicator and LCD count down display in measurement
LCD Dimension128mm×75mm; display area:124mmX67mm
Meter Dimension 215mm(L)×178mm(W)×83mm(H)
Test Wires 3 wires: each for red 15m, yellow 10m, and green 5m
Simple Test Wire Red 1.6m
Auxiliary Grounding Rod 2PCS: Φ10mm×150mm
Measuring RateEarth Voltage: about 3 times/second; Earth resistance: about 5 seconds/time
Measuring TimesOver 5000 times (20Ω gear measure 10Ω, interval time should be at least 30 seconds)
Line VoltageMeasurement of earth voltage: below AC 600V
Data Storage400 sets, “FULL” symbol flash display storage is full
Data HoldData hold function: “HOLD” symbol display
Data AccessData read function: “READ” symbol display
Overflow DisplayExceed measuring range overflow function: “OL” symbol display
Alarm Function Measuring value exceeds alarm setting value, LCD flashes display alarm symbol
Battery Voltage While battery voltage decreases to around 7.2V±0.1V, will display battery voltage low symbol“ ”, and remind to charging the battery
Power Consumption Backlight: 25mA Max
Standby: 25mA Max(Backlight shut down )
Measurement: 200mA Max(Backlight shut off)
Weight Tester: 1.325kg
Test wires: 0.847kg(include the simple test wires)
Auxiliary Grounding Rod:0.468kg(2pcs)
Tester package: 0.915kg
Working Temperature & Humidity -10oC-40oC, below 80%rh
Storage temperature & humidity -20oC-60oC, below 70%rh
Protection Level IP65(close the case)
Overload Protection Measure earth resistance: between each interfaces of C(H)-E, P(S)-ES, AC 280V/3 seconds
Insulation Resistance Over 10MΩ(between circuit and outside shell is 500V)
Withstanding Voltage AC 3700V/rms. (Between circuit and outside shell)
Electromagnetic Features IEC61010-4-3,wireless frequency electromagnetic field≤1V/m
Protection Type IEC61010-1 (CAT III 300V, CAT IV 150V, Pollution 2);
IEC61010-031;
IEC61557-1 (Earth resistance);


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

MEWOI4200.80...05.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


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