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INTRODUCTION

   MEWOI4520 series High Voltage Insulation Resistance Tester an intelligent high voltage insulation resistance tester of well research and development by our company. The instrument has perfect testing function of various insulation resistance parameters and excellent anti-interference ability, which can be used for insulation resistance testing of large-capacity high voltage electrical equipment and transmission lines. The instrument adopts true color touch screen, and all the test data and battery power are displayed on the same screen for viewing clear and obvious. The combination of knob switch and button makes the operation very simple. The user does not need to memorize the operation method, but just click "HELP" on the screen to pop up the operation method, effectively guiding the user to operate the instrument. The instrument has the function of rapid discharge, the charge of the tested object is released automatically after the test. The voltage monitor of the instrument automatically monitoring the live voltage of the measured object, when the voltage exceeding 36V will automatically prohibits testing and effectively protects the instrument and operator.

    The instrument adopts large capacity rechargeable lithium battery pack. The test timer of the instrument automatically records the test time and stores the test results with date and time. The touch screen can easily check the historical data recorded. The fully isolated USB interface can upload the test data to the PC safely. The instrument is equipped with the test line with double insulation and shielding layer, and the high voltage rod is equipped with replaceable crocodile clip and hook, which can adapt to various test places. The instrument adopts a strong double-shell structure, and the outer case of the instrument has a protection rating of IP65, which can prevent the intrusion of moisture and dust as well as prevent to impact in the transportation and storage process, effectively protect the instrument.

    MEWOI4520 series High Voltage Insulation Resistance Tester with a wide measurement range, high resolution, convenient operation, strong and durable, accurate and reliable, stable performance and strong anti-interference ability. The instrument has the functions of insulation resistance test (IR), polarization index test?PI), dielectric absorption ratio test (DAR), ramp test mode (RAMP), filtered resistance test mode (10S, 20S, 30S, 40S four selections), voltage test (V), capacity measurement (uF), leakage current measurement (nA), voltage monitor, test timer etc. The instrument is applied to the insulation resistance test of cable, motor, generator, transformer, transducer, high voltage switch, lightning arrester and other large equipment, and can be used for the insulation resistance test of large-capacity high voltage electrical equipment and transmission line, which is the power, telecommunications, meteorology, computer rooms, oil fields, mechanical and electrical installation and maintenance and power supply departments of industrial and mining enterprises commonly used but essential instruments.

MAIN FEATURES

1. Suitable for insulation resistance testing of cable, motor, generator, transformer, mutual inductor, high voltage switch, arrester and other large equipment.

2. Insulation Resistance Range: 0.5MΩ~10TΩ

3. Rated Voltage: 250v~5Kv(5 gears)

4. Shout Circuit Current: >7mA MAX

Voltage monitor function, Test timer function , Automatic discharge function

Insulation resistance measurement (IR); polarization index measurement (PI); absorption ratio (DAR);Ramp Test Mode (RAMP);  filtered resistance test (FR)

SPECIFICATION

FunctionDescription
FunctionInsulation resistance measurement (IR); polarization index measurement (PI) ;Dielectric Absorption  Ratio Test(DAR); Ramp Test Mode(RAMP); filtered resistance test(10S, 20S, 30S, 40S 4  options); Voltage measurement(V); capacity measurement(uF); current  measurement(nA)
Power SupplyRechargeable lithium battery pack 6.2Ah
Rated Voltage250V / 500V / 1000V / 2500V/5000V
Output Voltage Accuracy(5%~10%)±10V
Insulation Resistance Range0.5MΩ~10TΩ
Short Circuit Current>7mA MAX
Polarization Index Test(PI)Yes
Dielectric Absorption Ratio Test(DAR)Yes
Ramp Test ModeTest at 10% of the preset voltage until the peset voltage
Filtered Resistance Test Mode10S, 20S, 30S, 40S
Voltage MeasurementRange: AC/DC 0V~1000V; Accuracy: ± 5%rdg±3V
Capacitance MeasurementRange: 10nF~25uF; Accuracy: ±10% ± 10 nF
Leackage Current MeasurementRange: 0.01nA~9.00mA; Accuracy: ± 5%rdg+0.5nA 
Voltage MonitorMonitor the voltage of the measured object, and monitor discharge status after test, Forbidden to test when voltage is larger than 36V, protect instrument and operator.
Test TimeAutomatic record test time, time range: 0s~9999s
Storage FunctionAutomatically store the test data with test date and time, total of 1000 groups
Upload FunctionUpload the stored data to computer with USB communication cable.
Battery Power DisplayWith battery power display, when battery voltage low will remind to replace the battery
Automatic ShutdownAfter 15 minutes start up will shut down automatically without any operation
Meter Dimension280mm×260mm×160mm
Weight4900g
Test WireRed color high voltage test wire 1 pcs (with alligator clip 1PCS and hook 1PCS), green color test wire 1PCS, black color test wire 1PCS
Protection LevelClose the case IP65, open the case IP40
Withstand Voltage3mA AC 50Hz
Working Temperature and Humidity-20℃~50℃, 80%rh
Storage Temperature and Humidity-25℃~65℃, 80%rh
Insulation Resistance50MΩ(1000v)(between the test circuit and shell)
Withstand VoltageAC 3Kv 50Hz 1min(between the test circuit and shell)
Suitable Safety Standard IEC61010-1, IEC61326-1

Measure Range and Accuracy

Function

Output Voltage

Range(Ω)

Accuracy

Resolution


    250V(±2%)

    500K~25M

        ±3%rdg±5dgt

    0.01M

    25M~500M

        ±5%rdg±5dgt

    0.1

    500M~5G

        ±5%rdg±5dgt

    1M

    5G~20G

        ±10%rdg±5dgt

    10M

    500V(±2%)

    1M~50M

        ±3%rdg±5dgt

    0.1M

    50M~1G

        ±5%rdg±5dgt

    1M

    1G~10G

        ±5%rdg±5dgt

    10M

    10G~40G

        ±10%rdg±5dgt

    0.1G

    1000V(±2%)

    2M~100M

        ±3%rdg±5dgt

    0.1M

    100M~2G

        ±5%rdg±5dgt

    1M

    2G~20G

        ±5%rdg±5dgt

    10M

    20G~80G

        ±10%rdg±5dgt

    0.1G

    2500V(±2%)

    10M~250M

        ±3%rdg±5dgt

    0.1M

    250M~5G

        ±5%rdg±5dgt

    1M

    5G~50G

        ±5%rdg±5dgt

    10M

    50G~200G

        ±10%rdg±10dgt

    1G

5000V(±2%)50M~500M±3%rdg±5dgt1M
500M~10G±5%rdg±5dgt10M
10G~100G±5%rdg±5dgt0.1G
100G~400G±10%rdg±10dgt1G
10KV1.00MΩ~500GΩ±5%rdg±3dgt
500GΩ~2.00TΩ±10%rdg±3dgt
2.00TΩ~5.00TΩ±20%rdg±3dgt

Voltage

AC/DC: 0.0V~750V

±5%rdg±5dgt

    0.1V


SELECTION GUIDE

Model No./LinkVoltage RangeResistance RangeResolutionAccuracyShort circuit current

Polarization Index

Absorption Ratio

Power SupplyOthers

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4520B

250V / 500V / 1000V / 2500V//5KV/10KV20TΩ

7mARechargeable lithium battery pack 6.2AhDAR/PI

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4520C

250v~15Kv(7gears)30TΩ

7mARechargeable lithium battery pack 6.2AhDAR/PI

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4520

250V / 500V / 1000V / 2500V//5KV10TΩ
±5%rdg±3dgt7mARechargeable lithium battery pack 6.2AhDAR/PI

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4500B

250V / 500V / 1000V / 2500V//5KV/10KV5TΩ
±5%rdg±3dgt5mARechargeable lithium battery pack 5.2AhDAR/PI

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4500

250V / 500V / 1000V / 2500V//5000V2TΩ
±5%rdg±3dgt5mARechargeable lithium battery pack 5.2AhDAR/PI

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4480B

50V / 250V / 500V / 1000V / 2500V//5000V0.1MΩ~400GΩ0.01M±3%rdg±5dgt2mADC 1.5V LR14X6PCSDAR/PI

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4480A

50V / 250V / 500V / 1000V / 2500V0.1MΩ~200GΩ0.01M
±3%rdg±5dgt2mA
DC 1.5V LR14X6PCSDAR/PI

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4460B

50V / 250V / 500V / 1000V / 2500V//5000V0.1MΩ~400GΩ0.01M±3%rdg±5dgt2mA-DC 1.5V LR14X6PCS-

MEWOI OEM/ODM  Instruments Manufacturer

MEWOI4460A

50V / 250V / 500V / 1000V / 2500V0.1MΩ~200GΩ0.01M
±3%rdg±5dgt2mA
-DC 1.5V LR14X6PCS-

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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