MEWOI3800P Built-in earth resistance online tester

  • Name:
    MEWOI3800P Built-in earth resistance online tester
  • Model No.:
    MEWOI3800P
  • Main Features:
    Circuit grounding resistance monitoring, metal loop resistance on-line monitoring, ground condition monitoring; ground wire, metal cable anti-theft monitoring.
OEM/ODM Testing Instruments Manufacturer
share:

INTRODUCTION

Click to download: MEWOI3800P ColorPage

Click to download: MEWOI3800P Manual

Click to download:  Selection Map

MEWOI3800P built-in grounding resistance tester is designed specifically for online monitoring connection status of ground lead , loop grounding resistance, metal loop resistance . Online testing, non-contact measurement, ground lead through the clamp,without self-test, real-time detection. Provide RS232, RS485 or MODBUS-RTU communication protocol, the sensor and circuit board can be built into the chassis of other equipment, user-friendly secondary development and integration.

MEWOI3800P built-in grounding resistance online detector can be used for power transmission tower grounding; underground mine equipment grounding; meteorological lightning protection grounding; petrochemical grounding; communication grounding; transformer/substation grounding; railway facility grounding; construction warehouse grounding; electrical equipment grounding,etc. Can also be used for ground wire, metal cable anti-theft monitoring.

MEWOI3800P built-in grounding resistance tester can be installed on a single use, can also be formed into a wired network system or wireless network system.

SPECIFICATION

FunctionsCircuit grounding resistance monitoring, metal loop resistance on-line monitoring, ground condition monitoring; ground wire, metal cable anti-theft monitoring.
Range0.01Ω~200Ω
Resolution0.01Ω
Output range0.00Ω~200Ω
Accuracy±2%rdg±3dgt(20℃±5℃,<70%RH)
Power Supply6VDC~9VDC,50mA Max.
Weight680g
Host Size110mm×80mm×55mm
PCB Size166mm×56mm×20mm
Ground perforation size66mm×36mm,Closed Type
Extend Wire1pc,1Meter(5Cores Wire)
Single Test TimeAbout 0.5Second
PCB InterfaceJ1,Signal output, power input interface
J2,The connection interface between the Host and PCB
J1 Identification

P+:Power Output+

P-:Power Input-

GND:Signal,Connect with Power Input(P-)

R+:Singal Output+

R-:Signal Input-

J2 Identification

I +, I-current coil interface

U +, U-voltage coil interface

GND: Common ground

Connection Line Identificatin

Red / brown --- Power input positive;

Black - Power input ground;

Blue --- RS485 signal is positive;

Gray --- RS485 signal is negative;

White --- shield to;

(Power input ground and shield can be short-circuit connection)

Communication Method

RS232, RS485 or MODBUS-RTU communication protocol

Overflow indication

When the display value is greater than 200Ω, the communication sends an "OLΩ" command

Working Temperature and Humidity-20℃~50℃; below 90%rh
Storage Temperature and Humidity-20℃~60℃; below 70%rh

Temperature and humidity error

Less than 5%
External magnetic field<40A/m
External electric field<1V/m
InstallThe ground wire passes through the center hole of the sensor
Installation RequirementsCircuit boards need to be placed in other protective box, to avoid rain, flooding installation
Power consumption50mA Max.
Power supply

External power supply

Ground interference current

Should be avoided

Shift

Automatic shift
AccessoriesSensor: 1 pc; PCB module: 1 pcs; Connection cable: 1 piece

SPECIFICATION

FunctionsCircuit grounding resistance monitoring, metal loop resistance on-line monitoring, ground condition monitoring; ground wire, metal cable anti-theft monitoring.
Range0.01Ω~200Ω
Resolution0.01Ω
Output range0.00Ω~200Ω
Accuracy±2%rdg±3dgt(20℃±5℃,<70%RH)
Power Supply6VDC~9VDC,50mA Max.
Weight680g
Host Size110mm×80mm×55mm
PCB Size166mm×56mm×20mm
Ground perforation size66mm×36mm,Closed Type
Extend Wire1pc,1Meter(5Cores Wire)
Single Test TimeAbout 0.5Second
PCB InterfaceJ1,Signal output, power input interface
J2,The connection interface between the Host and PCB
J1 Identification

P+:Power Output+

P-:Power Input-

GND:Signal,Connect with Power Input(P-)

R+:Singal Output+

R-:Signal Input-

J2 Identification

I +, I-current coil interface

U +, U-voltage coil interface

GND: Common ground

Connection Line Identificatin

Red / brown --- Power input positive;

Black - Power input ground;

Blue --- RS485 signal is positive;

Gray --- RS485 signal is negative;

White --- shield to;

(Power input ground and shield can be short-circuit connection)

Communication Method

RS232, RS485 or MODBUS-RTU communication protocol

Overflow indication

When the display value is greater than 200Ω, the communication sends an "OLΩ" command

Working Temperature and Humidity-20℃~50℃; below 90%rh
Storage Temperature and Humidity-20℃~60℃; below 70%rh

Temperature and humidity error

Less than 5%
External magnetic field<40A/m
External electric field<1V/m
InstallThe ground wire passes through the center hole of the sensor
Installation RequirementsCircuit boards need to be placed in other protective box, to avoid rain, flooding installation
Power consumption50mA Max.
Power supply

External power supply

Ground interference current

Should be avoided

Shift

Automatic shift
AccessoriesSensor: 1 pc; PCB module: 1 pcs; Connection cable: 1 piece

Sensor: 1 pc; PCB module: 1 pcs; Connection cable: 1 piece