• MEWOI3800C-Non-Contact Earth Ground Resistance Online Tester/Meter

MEWOI3800C-Non-Contact Earth Ground Resistance Online Tester/Meter

  • Name:
    MEWOI3800C-Non-Contact Earth Ground Resistance Online Tester/Meter
  • Model No.:
    MEWOI3800C
  • Main Features:
    1,Return circuit ground resistance, metallic return connection resistance, grounding conditions on-line monitoring 2,Range: 0.01Ω~200Ω,3 Resolution: 0.01Ω
OEM/ODM, your testing specialist
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Brief Introduction

Click to download:  Selection Map

Click to download: MEWOI3800C/D Manual

MEWOI3800C-Non-Contact Earth Ground Resistance Online Tester is our company devotes ourselves to Grounding resistance test technical research’s another new high-tech product for more than ten years. Detector adopts weather fastness material manufacture, temperature resistance, cold-resistant, corrosion prevention, fire prevention. Detector’s structure is rigorous and firm, against rain, dustproof, installation and use outdoors. Non-contact measurement, safe and reliable, Ease of installation. Grounding down lead is directly through the detector perforation, Will not affect lightning protection grounding effect and the normal operation of the facilities. Ensure high-accuracy, high stability and high reliability of long time on-line monitoring outdoors, underground mine and indoors.

MEWOI3800C-Non-Contact Grounding Resistance Online Detector applies to electric transmission line pole ground connection, underground mine device ground connection, Meteorological lightning protection ground connection, petrochemical engineering ground connection, communication ground connection, rail facility ground connection, building the warehouse ground connection, electrical equipment ground connection etc.. Detector provides power supply and RS485 signal interface, and standard MODBUS-RTU communication protocol,which user can do secondary development to realize remote monitoring.

Application

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Selection Guide

ModelRange
Resolution
clamp sizeRS232Data StorgeAudible and visible alarm Other
MEWOI3000B+MEWOI3000B+_副本.jpg
0.01Ω-200Ω    0.01Ω65mm×32mmoptional 
99sets
MEWOI3100B+MEWOI3100B+官网主图_副本_副本.jpgø32mm
MEWOI3000+MEWOI3000B+_副本.jpg0.01Ω-1200Ω   0.01Ω65mm×32mmoptional 99sets
MEWOI3100+MEWOI3100B+官网主图_副本_副本.jpgø32mm
MEWOI3000D+MEWOI3000B+_副本.jpg

0.01Ω-1200Ω 

0.00-20.00A  

0.01Ω,0.05mA  65mm×32mmoptional 99sets
MEWOI3100D+MEWOI3100B+官网主图_副本_副本.jpgø32mm
MEWOI3800CMEWOI3800C_副本80.jpg0.01Ω-200Ω    0.01Ω60mm*30mmAppoint with RS485 communication interface, provide standard MODBUS-RTU communication protocol×

MEWOI3800DMEWOI3800D_副本80.jpg0.01Ω-200Ω  0.01Ω60mm*30mm×
LCD display,warning function.
MEWOI4000MEWOI4000C_副本.jpg

0.01Ω~2000Ω;

 0~600V

0.01Ω,1V
400sets
2/3-wires measurement of earth resistance/voltage
MEWOI4000CMEWOI4000C_副本.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
MEWOI4200MEWOI4200-1_副本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

Functions

Return circuit ground resistance, metallic return connection resistance, grounding conditions on-line monitoring

Power Supply

6VDC~9VDC, 50mA Max.

Resistance Range

0.01Ω~200Ω

Resolution

0.01Ω

Accuracy

±2%rdg±3dgt(20℃±5℃, below70%RH)

Grounding Wire Perforation Size

60mm×30mm, closed mode (60mm×4mm steel flat or external diameterФ30mm electric cable)

Connecting Line

A one meter long wire (5cores shielded wire)

Connection Identifier

Red/brown---power supply input anode.

Black--- power supply input cathode

Blue---RS485 signal anode.

Grey---RS485 signal cathode.

White--- analog grounding (power supply input cathode can connects with analog grounding by short circuit connection).

Communication Protocol

RS485 standard MODBUS-RTU communication protocol

Detector Dimensions

175mm×170mm×130mm

Installing Screw Hole Size

Φ8mm

Quality

Detector:960g

Working Temperature And Humidity

-10℃~40℃; 20%RH~90%RH

Humiture Error

Within 5%

Shift

Automatic shift

GND Interference Current

Prohibited

External Magnetic Field

<40A/m

External Electric Field

<1V/m

Single Measurement Of Time

About 0.5 second

Power Consumption

50mA Max.

Installation

Grounding wire through Detector centre bore

Level Of Protection

IP65

Installation Requirements

Avoid rain and water logging

Power Supply Mode

External power supply (Equipped by user)