Description

• Introduction Sanwa MG5000 High Voltage Digital Insulation Tester

  The Sanwa MG5000 High Voltage Digital Insulation Tester stands as one of the most trusted and accurate insulation resistance testing instruments available in Bangladesh today. Engineers, electricians, and maintenance professionals across the country choose this device because it delivers reliable high-voltage insulation measurements in demanding industrial environments. The Sanwa MG5000 operates across five test voltage ranges — 250V, 500V, 1000V, 2500V, and 5000V — and measures insulation resistance up to 1TΩ. Whether you work in power plants, substations, or electrical contracting, this meter gives you the precision and safety you need every time.

Specifications Sanwa MG5000 High Voltage Digital Insulation Tester

Specification	Details
Model	MG5000
Type	High Voltage Digital Insulation Resistance Tester
Test Voltage Ranges	DC 250V / 500V / 1000V / 2500V / 5000V
Insulation Resistance Range	Up to 1TΩ
Insulation Resistance Accuracy	±5% + 3 digits
Short Circuit Current	Up to 4mA
Display	1200-count LCD with backlight
Bar Graph	36-point analog bar graph
DAR / PI Function	Yes (auto display with single button)
Timer	99 minutes 59 seconds (99:59)
Sampling Rate	Approx. 3 times/second
Auto Hold	Yes (holds last value automatically)
Auto Discharge	Yes (displays discharge progress on screen)
Auto Power Off	Yes (approx. 10 minutes after last operation)
Voltage Measurement	AC/DC up to 1000V
Overload Protection (LINE-E)	AC/DC 1100V
Measurement Category	CAT IV 600V / CAT III 1000V
Safety Standard	IEC61010-1 compliant
EMC Standard	IEC61326
RoHS Compliance	EN50581
Protection Rating	IP54
GUARD Terminal	Yes (Green lead, for leakage elimination)
Battery	C-size alkaline batteries × 8
Accessories Included	Test leads TL-5K (Red/Black/Green, 3m each), Hard-shell carry case (C-MG5K), Instruction manual

 

 

Key Features Sanwa MG5000 High Voltage Digital Insulation Tester

The Sanwa MG5000 High Voltage Digital Insulation Tester packs a powerful set of features that make it indispensable for any serious electrical professional:

1. Five Test Voltage Ranges: The meter supports DC 250V, 500V, 1000V, 2500V, and 5000V, and the ranges adjust automatically during measurement.
2. High Resistance Measurement: The device measures insulation resistance up to 1TΩ with an accuracy of ±5%+3, giving users highly reliable readings.
3. 1200-Count LCD Display with Backlight: The large, easy-to-read display shows clear values even in low-light field conditions. Users can activate the backlight with a single button press.
4. 36-Point Bar Graph: The built-in analog-style bar graph gives users an intuitive visual reference of insulation resistance levels in real time.
5. Auto Hold Function: The meter automatically holds the last measured value on the screen when the test stops, so users can record readings without rushing.
6. DAR and PI Display: Users can view the Dielectric Absorption Ratio (DAR) and Polarization Index (PI) with a single button press, making long-term insulation health analysis fast and simple.
7. Auto Discharge Function: After every high-voltage test, the meter automatically discharges the residual voltage and displays the discharge progress on screen, keeping operators safe.
8. Auto Power Off: The device powers off automatically after approximately 10 minutes of inactivity, conserving battery life during long field sessions.
9. Battery Monitor: A built-in battery status indicator alerts users before battery power affects measurement accuracy.
10. IP54 Protection Rating: The robust enclosure withstands dust and water splashes, making it suitable for tough outdoor and industrial environments.

 

Applications Sanwa MG5000 High Voltage Digital Insulation Tester

The Sanwa MG5000 High Voltage Digital Insulation Tester serves professionals across a wide range of industries and applications:

• Power Cables and Wiring: Technicians use this tester to verify the insulation integrity of power cables, wiring harnesses, and distribution lines before energizing systems.
• Transformers: Maintenance engineers test the insulation resistance of transformer windings to detect moisture ingress, degradation, or potential breakdown risks.
• Electric Motors and Generators: The MG5000 checks motor winding insulation to prevent unexpected failures and costly downtime in industrial plants.
• Circuit Breakers and Switchgear: Electrical teams use the meter to confirm that switchgear insulation meets safety thresholds before putting equipment back into service.
• Power Plants and Substations: Engineers at generation facilities and substations rely on the 5000V test voltage capability to thoroughly test high-voltage equipment insulation.
• Industrial Machinery: Factory maintenance teams test insulation resistance of machinery frames, control panels, and drives to ensure operator safety.
• Building Electrical Systems: Electricians test fixed wiring in commercial and residential buildings to meet national electrical inspection standards.
• Routine Preventive Maintenance: Maintenance professionals schedule regular insulation resistance tests using DAR and PI measurements to track insulation health over time and prevent failures before they occur.

 

Who Uses This

The Sanwa MG5000 is the preferred insulation tester for a broad range of professionals:

• Electrical Engineers working on industrial power systems, generation equipment, and distribution networks need the 5000V range and high resistance capability this meter provides.
• Maintenance Technicians in factories, manufacturing plants, and power utilities use the MG5000 for scheduled insulation testing and condition monitoring.
• Electrical Contractors performing wiring installation, inspection, and compliance testing on commercial and residential projects rely on this meter for accurate and fast results.
• Substation and Power Plant Operators use the MG5000 to test transformers, switchgear, and cabling at high voltages in critical power infrastructure.
• HVAC and Industrial Equipment Technicians test the insulation of compressors, motors, and drives that operate continuously in demanding conditions.
• Quality Control Inspectors and test engineers in electrical manufacturing use the tester to verify insulation quality of finished products and components.
• Electrical Safety Officers in large organizations use regular PI and DAR testing to maintain compliance with workplace electrical safety regulations.

 

Frequently Asked Questions (FAQ)

Q1: What is the maximum test voltage of the Sanwa MG5000?

The Sanwa MG5000 generates a maximum test voltage of DC 5000V. It also supports 250V, 500V, 1000V, and 2500V ranges, making it suitable for a wide variety of insulation testing applications.

Q2: What is the maximum insulation resistance the MG5000 can measure?

The MG5000 measures insulation resistance up to 1TΩ (1 Teraohm) with an accuracy of ±5%+3 digits, making it capable of detecting even very high-quality insulation conditions in modern equipment.

Q3: What do DAR and PI mean, and does the MG5000 support them?

DAR stands for Dielectric Absorption Ratio, and PI stands for Polarization Index. Both values indicate the long-term health and moisture content of insulation. The MG5000 calculates and displays both values automatically with a single button press, making insulation health assessment quick and easy.

Q4: Does the Sanwa MG5000 automatically hold the measurement value?

Yes. The Auto Hold function automatically holds the last measured insulation resistance value on the display when the test stops. The display retains this value until the user presses the TEST button again or changes the function switch position.

Q5: Is the Sanwa MG5000 safe to use in outdoor or dusty environments?

Yes. The MG5000 carries an IP54 protection rating, which means the enclosure resists dust ingress and water splash from any direction. This makes the meter suitable for outdoor field work and industrial environments.

 

 

Why buy from astzbd

When you buy the Sanwa MG5000 High Voltage Digital Insulation Tester from astzbd, you get far more than just a product — you get a complete purchasing experience built around trust, quality, and service:

• 100% Genuine Product: astzbd sources the Sanwa MG5000 directly through authorized channels. Every meter is authentic, factory-sealed, and comes with the manufacturer’s full warranty.
• Best Price in Bangladesh: astzbd offers the Sanwa MG5000 at a competitive and fair market price. Customers get premium Japanese quality without overpaying.
• Fast Delivery across Bangladesh: astzbd ships orders promptly to Dhaka, Chittagong, Sylhet, Rajshahi, Khulna, and all other cities and districts across Bangladesh.
• Expert Technical Guidance: The astzbd team understands electrical testing equipment deeply. Customers can contact the team before purchase to get honest advice on whether the MG5000 fits their specific application.
• Secure and Easy Online Shopping: astzbd provides a smooth, secure, and straightforward online ordering process. Customers can pay via multiple methods and track their orders conveniently.