Product Introduction

The MOEORW-W3125A is a five-range high-voltage digital insulation resistance tester (megohmmeter) . Designed in strict accordance with the IEC61010 international safety standard, it features five test voltage ranges: 250V/500V/1000V/2500V/5000V. It can quickly and accurately test the insulation performance of electrical equipment and lines, and is widely applicable to power, industrial, electrical installation and equipment maintenance scenarios.
The instrument is equipped with practical functions such as automatic discharge, PI polarization index, DAR dielectric absorption ratio, live warning, backlight, and automatic shutdown . The measurement range can reach up to 20000GΩ . It supports real-time bar graph display, and the measurement is stable, safe and convenient to operate. It is a professional tool for electrical insulation testing and preventive testing.

Product Parameter (specification)

Measurement range and accuracy (temperature/humidity: 23±5ºC, 45～75%RH)

Rated voltage	250V	500V	1000V	2500V	5000V
Measurement range	0.1～100.0MΩ	0.1～ 99.9MΩ 80～1000MΩ	0.1～99.9MΩ 80～999MΩ 0.80～2.00GΩ	0.1～99.9MΩ 80～999MΩ 0.80～9.99GΩ 8.0～100.0GΩ	0.1～99.9MΩ 80～999MΩ 0.80～9.99GΩ 8.0～99.9GΩ 80～20000GΩ
Display range	0.1~100.0 MΩ	0.1~1000 MΩ	0.1M~2.00 GΩ	0.1M~100.0 GΩ	0.1M~2000 GΩ
Open circuit voltage	DC250V +10%, -10%	DC 500V +20%, -10%	DC 1000V +20%, -0%	DC 2500V +20%, -0%	DC5000V +20%, -0%
Fixed-range measurement current			1MΩ load 1mA~1.2mA	2.5MΩ load 1mA~1.2mA	5MΩ load 1mA~1.2mA
Short circuit current	5mA±0.5mA
Accuracy	±5%±3dgt				±5%±3dgt ±20%

Voltage monitor (insulation resistance range)
30～600V (resolution 10V): ±10%rdg±20V
This mode is suitable for confirming the discharge state of the charged charge in the test object. During measurement, use the measured voltage value displayed on the monitor as the standard. Please note that the displayed data will not be accurate when an external AC voltage is applied.

	DC voltage	AC voltage
Measurement range	±30 -- ±600V	30 -- 600V (50/60Hz)
resolution	1V
Accuracy	±2%rdg±3dgt
show	LCD display Insulation resistance range: Maximum 1200 ohms (count) VAC/DC range: Maximum 630 count Bar chart: Maximum 36 points DAR/PI value: Maximum 9.99 Time: Maximum 99.59
Low battery warning	Battery markings (4 levels)
Over-range display	Displays the "OL" mark (insulation resistance range). Displays the "Hi" symbol (voltage range).
Automatic ranging	Move to the next higher range: 1000 count Move to the next lower range: 80 counts (insulation resistance range only)
Automatic shutdown function	The device will automatically shut down 10 minutes after operation (this function did not work during testing).
Environmental conditions for use	Below 2000m altitude
Accuracy ensures a wide temperature and humidity range	23ºC±5ºC / Relative humidity below 85% (no condensation)
Operating temperature and humidity range:	0ºC~40ºC / Relative humidity below 85% (no condensation)
Storage temperature and humidity range	-20ºC to +60ºC / Relative humidity below 75% (no condensation)
Overload protection: Insulation resistance range	AC1200V/10 seconds.
Withstand voltage	Voltage range: AC720V/10 seconds. AC5160V (50/60Hz)/5 seconds (between circuit and outer casing)
Insulation resistance	≥1000MΩ/ DC 1000V (between circuit and outer casing)
Size	177(L)×226(W)×100(D)mm
Weight	MOEORW -3125A: 1.9kg (including battery)
Power supply	DC12V: 8 alkaline batteries, size C (LR14).

Current consumption: (Representative value when power supply voltage is 12V)

Range	250V	500V	1000V	2500V	5000V	VAC/DC
When the output is short-circuited	600mA					110mA
When the rated current is output	650mA/0.25MΩ	800mA/0.5MΩ	1000mA/1MΩ	1350mA/2.5 MΩ	1350mA/5 MΩ
When output is open	40mA	40mA	50mA	80mA	150mA
standby	25mA
When the backlight is on	Increase 40mA

Measurement time: Approximately 25 hours

Insulation resistance 5000V, range 100 MΩ

Product features and applications

This instrument is a high-voltage insulation resistance meter with a 5-range (W3125A) for measuring insulation resistance.

The design complies with international safety standards.

IEC 61010-1, -2-030 (CAT III 600V /CAT IV 300V Contamination Level 2)
IEC 61010-031 (Standard for Requirements of Handheld Probes)

Automatic discharge function: When testing the insulation resistance of capacitive loads, the charged charge is automatically released after measurement. The discharge status can be confirmed in voltage mode.
The backlight function makes it easy to work in low light or at night.
The bar chart displays the measurement results.
Warning signs and buzzer warnings for live lines.
Automatic shutdown function: To avoid battery waste caused by forgetting to turn off the instrument, the instrument will automatically shut down if there is no operation for 10 minutes after measurement.
Automatic measurement and PI measurement (polarization index measurement), DAR measurement (electro-induced absorption ratio measurement).

Prodection details

Power Equipment Operation And Maintenance
Insulation performance testing and preventive testing of motors, transformers, switchgear, and cables.

Electrical Installation Acceptance
Inspect the insulation compliance of newly built power distribution lines and electrical installations.

Industrial Equipment Maintenance
Routine insulation maintenance of factory electrical equipment, control circuits, and power lines.

On-site Safety Inspection
Rapid high-voltage insulation measurement in dimly lit/outdoor environments ensures safety during live-line work.

Company Qualifications

FAQ

Q: Are you a factory or a trading company?

A: We are a professional manufacturer of testing equipment.

Q: How is the after-sales service?

A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.

Q: How is the after-sales service?

A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.

Q: What about transportation?

A: It depends on your requirements. We can ship to your airport by air, to your seaport by sea, or to your office by courier.
We also accept cooperation with your shipping agent.

Q: Are your keyboard, interface, software, and manuals in English?

A: Yes, if you are using the English version of the keyboard, interface, software, and manual and require other languages, please contact us for confirmation.

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