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Overview

Applied to measuring transformer winding resistance; grounding continuity resistance; cable & conductor resistance;contact resistance of switches, connectors and relays; metal riveting resistance; winding resistance of coil, motor andtransducer: connection resistance between metal components; welding point resistance; Battery parallel connectionresistance; wire length measurement and calculation, etc.

Main Features

  1. Model No.: MEWOI4660

  2. Range : 10.ouQ2 ~50.00KQ

  3. Test Current : 10A,1A,100mA, 10mA, 2mA, 1mA,Automatic

  4. Max Test Current : 10A

  5. Measurement Method : Precision 4-wire method, 2 chennal A/D detecting simultaneously

  6. Power Supply : DC 7.4V 5200mAh, rechargeable lithium battery, full charge about 8.4v

Functions

  1. The tester is controlled by a high-speed single-chip microcomputer,with fast response speed, stable measurement and easy operation.

  2. With two measuremert modes-automatic measurement mod . the estcurent can be automatcallyselcted accotding to the load ,Maneal meauremert mode There ave 7 gearstest currents can be chose from 20A,10A,1A,100mA, 10mA, 2mA and 1mA.

  3. Exuip with 430x854true colorLCDtouchscen which is cearvy risile under stongliht and can be usedfor both touch screen and panelbutons Llarge capacty rechargeablelithium battery and waterproof case are suitable for outdoor use.

  4. With Bluetooth communication function,can do test operations or view the test result on the mobile phone after install the APP.

  5. The tester has USB interface and monitoring software, which can communicate with the computer.

  6. The protection function i perfect which canrelably protect the impact of the backEMF on the instrument, and the performance is more reliable.

  7. with the function of discharging,. which can automatically discharge after the test, and the discharge indication is clear to avoid misoperation.

  8. With the function of converting resistance, which can compensate and convert the temperature material of the test product.

  9. Alarm function, the resistance alarm value can be set.

  10. Automatic shutdown function, the tester will automatic shutdown after 15 minutes without any operation.

Measurement Range&Accuracy

Measuring range

Accuracy

resolution

1.0uΩ~1000.0uΩ

0.2%±2uΩ

0.1uΩ

1.000mΩ~10.000mΩ

0.2%±0.02mΩ

1uΩ

10.00mΩ~100.00mΩ

0.2%±0.2mΩ

0.01mΩ

100.0mΩ~1000.0mΩ

0.2%±2mΩ

0.1mΩ

1.000Ω~10.000Ω

0.2%±0.02Ω

0.001Ω

10.00Ω~100.00Ω

0.2%±0.2Ω

0.01Ω

100.0Ω~1000.0Ω

0.2%±2Ω

0.1Ω

1.00kΩ~50.00kΩ

0.2%±0.2kΩ

0.01kΩ

Note: The reference condition of the error range in the above table: 25°C±5°C, the maximum error in the working environment is not more than 2 times.

Technical specifications

Function

Used to measure transformer winding resistance; cable wire resistance; contact resistance of switches, connectors, and relays; metal riveting resistance; winding resistance of coils, motors, and transformers; connection resistance between metal components; electric welding point resistance; parallel connection of batteries resistance; wire length measurement, etc.

test method

Precise four-wire method, 2-way A/D simultaneous detection

test mode

automatic / manual

power supply

DC 22.2V 5200mAh rechargeable lithium battery

Range and

test current

1.0uΩ~50.00kΩ Automatic AUTO

1.0uΩ~20.00mΩ 10A

10.00mΩ~200.0mΩ 5A

100.0mΩ~2.000Ω 1A

1.000Ω~20.00Ω 100mA

10.00Ω~200.0Ω 10mA

100.0Ω~50.00kΩ 1mA

highest resolution

0.1uΩ

The output voltage

24V MAX

Test current gear

10A, 5A, 1A, 100mA, 10mA, 1mA, AUTO

measure time

Sampling AD rate 1 second/time

Alarm settings

Alarm threshold setting range: 1mΩ~2500Ω, 0Ω does not activate the alarm function, and does not activate the alarm function every time it is turned on

Warning

When the test value exceeds the alarm setting value, the buzzer will sound an alarm prompt

overflow display

Over-range overflow function: digital 9999 over-limit display

charging indication

The indicator light on the charger is red when charging, and green when fully charged

low voltage indication

When the battery voltage drops to DC 22.2V±0.1V, the low battery symbol will be displayed to remind the meter to charge in time

data storage

600 groups (data will not be lost when power off or battery replacement)

data retention

Automatically keep displaying the measured results after each test

backlight    

have

Converted Resistance Calculation

With the function of converting resistance at 75°C, it can compensate and convert the temperature material of the test product

discharge function

Automatic discharge after test, clear discharge indication, avoid misoperation

Automatic shut-down

After setting the automatic shutdown, it will automatically shut down after 15 minutes of no operation

test line

1 each red and black

LCD size

108mm×65mm

Host size

280mm×260mm×160mm

quality

About 3060g (including battery); total mass: about 5.8kg (including accessories)

Working temperature and humidity

-10℃~40℃; below 80%RH

storage temperature and humidity

-10℃~60℃; Below 70%RH

degree of protection

IP65 (when the cover is closed)

bluetooth communication

have

USB interface

With USB interface, software monitoring, stored data can be uploaded to the computer

Pressure resistance

AC 3700V/rms (between shell and screw)

Suitable for safety regulations

IEC61010-1, CAT Ⅲ 600V, pollution degree 2, JJG724-1991 "Verification Regulations for DC Digital Ohmmeter", JJG166-1993 "Verification Regulations for DC Resistors", "DL/T967-2005 Loop Resistance Tester and DC Resistance Fast Tester Verification Regulations"

Selection Guide

Product number

Measuring range

highest resolution

Maximum test current

MEWOI4660

10.0uΩ~50.00kΩ

0.1uΩ

10A

MEWOI4660B

1.0uΩ~50.00kΩ

0.1uΩ

20A


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