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INTRODUCTION

Click to download: MEWOI68C,68D,68G Digital Insulation Tester User Manual

Click to download:  MEWOI68C,68D,68G Digital Insulation Tester Specification

The Digital Insulation Resistance Tester series have high performance, and safe configuration and improved electro circuit. It is one new item which has more fully function, higher precision and easier operation. It’s also one quakeproof, dustproof and damp-proof tester and can fit work environment of outdoor.

The output testing voltage can be changed between 100V/250V/500V/1000V/2500V/5000V for different item no. The resistance can reach 200GΩ; the tester also can measure alternating voltage.

This Tester apply for all kinds or electric equipment and insulation materials such as transformer, electromotor, cable, switch appliance, etc.It is a perfect electrical testing meter.

Features 

Features

Low power consumed CMOS double integral A/D transforming IC, auto-checking to zero, auto displaying polarity, displaying when low battery.

LCD

3 1/2 digits display with a max. reading of 1999

Data Hold

Has function of holding data and displaying signal.

Backlight

LCD back light

Voltage Switch

Can use rotating switch when testing voltage

Voltage Range

1-750V

High voltage indicate

High voltage is on the rails when LED is on

Low Battery Indicate

Displaying when battery is low

Power Supply

Drove by Battery not by hand

Auto switch

Auto switch the range when measuring resistance

Load

With strong load, appox.1.0mA output short current.

Circuit Protection

Perfect circuit protect, preventing damage by voltage shock effectively

LCD Dimension

68×55mm (Height of character is 35mm)

Battery

Power: six battery 5# which is 1.5V (R6AA SUM-3)(MEWOI68C, D, G)

Meter Dimension

218×122×75mm

Weight

900g (contain battery).

Working Environment

Working temperature: 0~40°C, relative humidity<80%,Storage temperature: -10~50°C, relative humidity <85%.

Temperature to ensure precision: 23 ± 5°C, relative humidity<75%.

Technical Specification 

LCD

MEWOI168CMEWOI-clamp meter|earth ground resistance tester|pinza|curent sensor probe

MEWOI168GMEWOI-clamp meter|earth ground resistance tester|pinza|curent sensor probe

MEWOI168DMEWOI-clamp meter|earth ground resistance tester|pinza|curent sensor probe

Voltage Max

5000V

2500V

1000V

Testing Rating Voltage

500V/1000V/2500V/5000V

250V/500V/1000V/2500V

100V/250V/500V/1000V

Output voltage

90~110% Testing Rating Voltage

Resistance Range

1MΩ~200GΩ

1MΩ~20GΩ

1MΩ~20GΩ

Accuracy

1MΩ~200MΩ: ± ( 3.0%+5 ), 200MΩ~10GΩ: ± ( 5.0%+5 ), 10GΩ~200GΩ: ± ( 10.0%+5 )

Resolution

20MΩ: 10kΩ, 200MΩ: 100kΩ, 2000MΩ: 1MΩ, 20GΩ: 10MΩ, 200GΩ: 100MΩ

Scale of AC voltage

1~750V

Accuracy

± ( 2.0%+5 )

Resolution

1V

Frequency response

40~400Hz


Note: When the measured resistance is less than 5MΩ in any rating test voltage, the measuring time should not be more than 10 seconds.

Remark: fall down resistance

Rating test voltage

fall down resistance

100V

1MΩ

250V

1MΩ

500V

1MΩ

1000V

2MΩ

2500V

2MΩ

5000V

8MΩ

Explaining: Minimum measured resistance means lower limit value of resistance which it ensure the voltage of two extremity of measuring is less than 90% of rating test voltage.

SELECTION GUIDE

Model No./LinkVoltage RangeResistance RangeResolutionAccuracyShort circuit current

Polarization Index

Absorption Ratio

Power SupplyOthers

MEWOI68G_80.jpg

MEWOI168D

1000V
1MΩ~20GΩ

20MΩ: 10kΩ,

 200MΩ: 100kΩ, 

2000MΩ: 1MΩ, 

20GΩ: 10MΩ, 

200GΩ: 100MΩ

1MΩ~200MΩ: ± ( 3.0%+5 ), 200MΩ~10GΩ: ± ( 5.0%+5 ), 10GΩ~200GΩ: ± ( 10.0%+5 )----

MEWOI68G_80.jpg

MEWOI168G

2500V1MΩ~20GΩ----

MEWOI68G_80.jpg

MEWOI168C

5000V1MΩ~200GΩ----

MEWOI-JT2670-Digital-megohmmeter.80.jpg

MEWOI-JT2670

1000V0~19990MΩ

0.01MΩ

0.1MΩ,

1.0MΩ,

10.0MΩ

0~2000MΩ≤±5%±2d, 

2000MΩ~19990MΩ≤10%±2d

>1.6mA-8×1.5V(AA,R6)battery-

MEWOI-JT2671-Digital-megohmmeter.80.jpg

MEWOI-JT2671

2500V0~19990MΩ

0.01MΩ

0.1MΩ,

1.0MΩ,

10.0MΩ

0~2000MΩ≤±5%±2d, 

2000MΩ~19990MΩ≤10%±2d

>1.6mA-8×1.5V(AA,R6)battery-

MEWOI-JF9300M-5KV-High-voltage-insulation-resistance-tester.80.jpg

MEWOI-JF9300M

5KV500GΩ @ 5kV.1 MΩ± (10%+5Dgt)5mAInternal rechargeable batteryPrinter+Touch Screen

MEWOI-JF9300M-5KV-High-voltage-insulation-resistance-tester.80.jpg

MEWOI-JF9300N

10KV1000GΩ @ 10kV.1 MΩ± (10%+5Dgt)5mAInternal rechargeable batteryPrinter+Touch Screen

MEWOI618B-Digital-10kv-insulation-resistance-tester-printer.01.80.jpg

MEWOI618B

10KV10TΩ @ 10kV.1 MΩ± (10%+5Dgt)5mA

Rechargeable battery 

or AC Power Supply

Printer+Capacitance

+Leakage Current

MEWOI616-Digital-15KV-Insulation-Resistance-Meter-Megohmmeter-insulation_.80.jpg

MEWOI616

15KV20TΩ @ 15kV.1 MΩ± (10%+5Dgt)5mARechargeable battery 

or AC Power Supply

Capacitance

+Leakage Current

MEWOI616-Digital-15KV-Insulation-Resistance-Meter-Megohmmeter-insulation_.80.jpg

MEWOI616A

20KV20TΩ @ 15kV.1 MΩ± (10%+5Dgt)5mARechargeable battery 

or AC Power Supply

Capacitance

+Leakage Current




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