Precision Digital Megger Tester for Transformer Insulation Inspection

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Measurement	200mA Max (backlight off)
Delivery Time	8-10 days
Insulation Resistance	≥50MΩ (between the measurement circuit and the casing)
Payment Terms	T/T
Supply Ability	2000units/year
Battery Voltage	Low battery voltage is indicated by the symbol
Alarm Function	Issues an alarm alert when the measured value exceeds or falls below the preset threshold
Packaging Details	wooden packaging
Auto Power-off	The instrument automatically powers off after 15 minutes of inactivity
Data Recall	Data recall function
Model Number	XHMR-5000A
Certification	ISO,CE
Place of Origin	Xi'an, Shaanxi, China
Brand Name	XZH TEST

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Product Details
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Product Specification


Measurement	200mA Max (backlight off)	Delivery Time	8-10 days
Insulation Resistance	≥50MΩ (between the measurement circuit and the casing)	Payment Terms	T/T
Supply Ability	2000units/year	Battery Voltage	Low battery voltage is indicated by the symbol
Alarm Function	Issues an alarm alert when the measured value exceeds or falls below the preset threshold	Packaging Details	wooden packaging
Auto Power-off	The instrument automatically powers off after 15 minutes of inactivity	Data Recall	Data recall function
Model Number	XHMR-5000A	Certification	ISO,CE
Place of Origin	Xi'an, Shaanxi, China	Brand Name	XZH TEST
High Light	digital megger tester for transformers ，transformer insulation inspection tester ，AC DC hipot megger tester

1. Introduction

The insulation resistance tester—also known as a megohmmeter, high-voltage insulation resistance tester, etc.—is used for measuring insulation resistance.

2. Voltage Ranges and Accuracy

Measurement Function	Measurement Range	Accuracy	Resolution
DC Voltage	DC 0.0V – 1000V	±1.5% rdg ±3 dgt	0.1V
AC Voltage	AC 0.0V – 750V	±1.5% rdg ±3 dgt	0.1V

3. Technical Specifications

Functions	Insulation Resistance Test, Voltage Test, DC Current Test, Capacitance Test
Reference Conditions	23°C ±5°C, <75% RH
Rated Voltage	100V, 250V, 500V, 1000V, 2500V, 5000V
Insulation Resistance Range	0.01 MΩ – 10 TΩ \| Resolution: 0.01 MΩ
Rated Voltage	250V, 500V, 1000V, 2500V, 5000V, 10 kV
Insulation Resistance Range	0.01 MΩ – 35 TΩ \| Resolution: 0.01 MΩ
Rated Voltage	500V, 1000V, 2500V, 5000V, 10 kV, 15 kV
Insulation Resistance Range	0.01 MΩ – 50 TΩ \| Resolution: 0.01 MΩ
Measurement Voltage (V)	Rated Voltage × (1 ±10%)
DC Voltage Range	0 – 1000V \| Resolution: 0.1V
AC Voltage Range	0 – 750V \| Resolution: 0.1V
DC Current	0.1 nA – 6 mA \| Resolution: 0.1 nA
Capacitance	10 nF – 50 µF \| Resolution: 10 nF
Output Short-Circuit Current	≥6 mA @ 15 kV
Absorption Ratio (DAR) and Polarization Index (PI) Measurement	Supported
Power Supply	12.6V Rechargeable Lithium Battery
Backlight	Supported Controllable gray-white screen backlight, suitable for use in dimly lit environments.
Display Mode	4-digit extra-large LCD display with gray-white screen backlight.

4. Measurement Principle

Insulation resistance measurement utilizes a voltage generator to generate a voltage (V), which is applied across the resistor under test. By measuring the current (I) flowing through the resistor, the resistance value (R) is calculated using the formula R = V/I.

Safety Precautions:

In all circumstances, special attention must be paid to safety when using this instrument.
This instrument has been designed, manufactured, and tested in accordance with the IEC 61010 safety specifications.
During measurements, do not use high-frequency signal generators—such as mobile phones—in the vicinity of the instrument, as this may introduce measurement errors.
Pay close attention to the text and symbols displayed on the labels affixed to the instrument's casing.
Before use, verify that the instrument and its accessories are in good condition; specifically, ensure that the insulation on the instrument and test leads is intact, with no exposed conductors or broken wires, before proceeding with measurements.
During the measurement process, strictly avoid touching exposed conductors or the circuit currently being tested.
Ensure that the connection plugs of the test leads are firmly inserted into the corresponding ports on the instrument.
Do not perform measurements in flammable environments, as sparks generated during operation could trigger an explosion.
If the instrument's casing or test leads become damaged—exposing internal metal components—while the unit is in use, immediately cease operation.
Do not leave or store the instrument for extended periods in environments characterized by high temperatures, high humidity, condensation, or direct sunlight.
When replacing the instrument's batteries, ensure that the test leads have been disconnected from the unit and that the instrument is powered off.
If the instrument displays the "Low Battery Voltage" symbol, recharge the unit immediately; failure to do so may result in measurement inaccuracies.
Strictly avoid performing charging or data transmission operations while a measurement is in progress.

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory

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Business Type:

Manufacturer 
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Year Established:

2013 
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Total Annual:

1000000-5000000
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Employee Number:

50~100 
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Ecer Certification：

Verified Supplier 

Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical... Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical...

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Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
Building B8-01, Phase I, Ronghao Industrial City, No. 2098, Weiyang 9th Road, Gaoling District, Xi'an, China
https://www.xzhtest.com/

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