What is HIOKI INSULATION TESTER IR4056?
INSULATION TESTER IR4056 is a digital insulation resistance tester by Hioki, designed to ensure safe and accurate insulation checks in electrical systems. It has 5 test voltage ranges (50V to 1000V) and has advanced features. This device is essential for electrical engineers and maintenance professionals in Dhaka and Bangladesh.
Why Use an Insulation Tester?
Insulation testers are important tools in any electrical setup. They check the health of cables, wires, motors, and other components. An insulation breakdown can cause short circuits or shocks. Regular testing keeps systems safe.
- Prevents equipment failure
- Ensures user safety
- Reduces maintenance costs
Key Features of Hioki Insulation Tester IR4056
Hioki IR4056 Insulation Tester—Basic Specifications
General
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Accuracy Guarantee: 1 Year
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Display: Semi-transmissive FSTN LCD with backlight and bar-graph indicator
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Response Time: Approx. 0.8 seconds for PASS/FAIL judgment (Hioki in-house testing)
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Drop Proof: Yes
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Power Supply: 4 × LR6 (AA) alkaline batteries
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Continuous use: Approx. 20 hours (Comparator off, backlight off, 500 V range, no load)
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Measurement Count: Approx. 1000 measurements (5 s ON / 25 s OFF cycle)
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| Category | Specification |
|---|---|
| Accuracy Guaranteed | 1 year |
| Rated Output Voltages | 50 V / 125 V / 250 V / 500 V / 1000 V DC |
| Effective Max Indicated Resistance | 100 MΩ / 250 MΩ / 500 MΩ / 2000 MΩ / 4000 MΩ |
| 1st Effective Measuring Range (Accuracy) | ±2 % rdg. ±2 dgt.• 0.200–10.00 MΩ (50 V)• 0.200–25.0 MΩ (125 V)• 0.200–50.0 MΩ (250 V)• 0.200–500 MΩ (500 V)• 0.200–1000 MΩ (1000 V) |
| Lower Limit Resistance | 0.05 MΩ (50 V)0.125 MΩ (125 V)0.25 MΩ (250 V)0.5 MΩ (500 V)1 MΩ (1000 V) |
| Overload Protection | 600 V AC (10 s), 660 V AC (10 s) |
| DC Voltage Range | 4.2 V to 600 V (4 ranges) |
| DC Voltage Resolution | 0.001 V to 1 V |
| DC Voltage Accuracy | ±1.3 % rdg. ±4 dgt. |
| DC Voltage Input Resistance | ≥ 100 kΩ |
| AC Voltage Range | 420 V / 600 V (2 ranges), 50/60 Hz |
| AC Voltage Accuracy | ±2.3 % rdg. ±8 dgt. (Average rectified) |
| AC Voltage Input Resistance | ≥ 100 kΩ |
| Low Resistance Range | 10 Ω to 1000 Ω (3 ranges) |
| Low Resistance Resolution | 0.01 Ω to 1 Ω |
| Low Resistance Accuracy | ±3 % rdg. ±2 dgt. |
| Testing Current (Low Resistance) | ≥ 200 mA (at ≤ 6 Ω) |
| Display Type | Semi-transmissive FSTN LCD with backlight and bar graph |
| Response Time (PASS/FAIL) | Approx. 0.8 s (based on in-house testing) |
| Other Functions | • Live circuit indicator• Automatic electric discharge• Automatic DC/AC detection• Comparator• Drop-proof• Auto power save |
| Power Supply | 4 × LR6 (AA) alkaline batteries |
| Battery Life | Approx. 20 hours (comparator off, backlight off, 500 V range, no load) |
| Measurement Count | Approx. 1000 measurements (5s ON / 25s OFF at lower limit resistance) |
| Dimensions (W × H × D) | 159 mm × 177 mm × 53 mm (6.26 in × 6.97 in × 2.09 in) |
| Mass | 600 g (21.2 oz) including batteries (excluding test leads) |
| Included Accessories (IR4056-20) | • Test Lead L9787 ×1• Neck Strap ×1• Instruction Manual ×1• LR6 Batteries ×4 |
| Included Accessories (IR4056-21) | • Test Lead with Remote Switch L9788-11 ×1• Neck Strap ×1• Instruction Manual ×1• LR6 Batteries ×4 |
Additional Measurement Options
Voltage Measurement
- DC Voltage: 4.2V to 600V
- AC Voltage: Up to 600V (50/60Hz)
Low Resistance Range
- From 10Ω to 1000Ω
- Good for checking ground wire connections
- Testing current: 200mA or more
Designed for Safety
The IR4056 includes safety features to protect the user and the device.
- Live circuit warning
- Auto-discharge after test
- Auto DC/AC detection
How to Use IR4056
Even if you’re new to insulation testers, using the IR4056 is easy.
Step-by-Step Guide
- Turn on the device.
- Choose the right voltage range.
- Connect the test leads.
- Press the measurement button.
- Read the result on screen or via beeps and lights.
Example
For checking a motor, use the 500V setting. Connect the leads to the motor winding. If the display shows a high MΩ value, the insulation is good.
Applications of IR4056
This insulation tester is used in many places. It fits both small jobs and large industrial needs.
- Residential wiring
- Factories
- Solar installations
- Schools
- Hospitals
Who Should Use This?
- Electricians
- Engineers
- Technicians
- Maintenance teams
Benefits of Using IR4056 in Dhaka
Bangladesh’s climate and industrial demands make the IR4056 a wise choice.
- Withstands tough weather
- Perfect for quick testing
- Portable and battery-powered
Comparison With Other Models
| Feature | IR4056 | Other Testers |
| Drop-proof | Yes | Not always |
| Pass/Fail Lights | Yes | Sometimes |
| Built-in Storage | Yes | Rarely |
| LED Display | Yes | Not always |
Why Power Tech BD is the Best Place to Buy
Power Tech BD is a trusted electrical solutions provider in Dhaka. We focus on quality, support, and customer satisfaction.
Why Choose Us?
- Genuine Hioki products
- Competitive pricing
- After-sales service
- Located in Dhaka for fast delivery
- Knowledgeable support team
Customer Support
If you face any issues, Power Tech BD is just a call away. We offer guidance, training, and troubleshooting help.
Maintenance Tips
To keep your IR4056 working perfectly:
- Replace batteries when low
- Store in dry place
- Clean leads regularly
Conclusion : INSULATION TESTER IR4056
The INSULATION TESTER IR4056 is a reliable, feature-packed device made for professionals in Bangladesh. It fits every electrical job in Dhaka with multiple voltage options, safety features, and a simple design.
Remember:
- Always check the insulation before use
- Use PASS/FAIL mode for fast checks
- Get yours from Power Tech BD for peace of mind
FAQs- INSULATION TESTER IR4056
Q1: Can beginners use the IR4056?
Yes. It’s easy to use with simple buttons and quick display.
Q2: Is this model suitable for industrial use?
Yes. It works great for heavy-duty testing.
Q3: Does it need power supply?
It uses 4 AA batteries, so it’s very portable.
Q4: Is the tester safe to use?
Yes. It has safety features like live circuit detection.
Q5: Where can I buy this in Dhaka?
Buy directly from Power Tech BD – trusted, reliable, and fast.