HIOKI Analog Insulation Testers
HIOKI Analog Insulation Testers are professional insulation resistance measuring instruments designed for electrical maintenance, troubleshooting and preventive inspection. Models such as HIOKI IR4016, IR4017, IR4018 and 3490 provide test voltages from 250 V to 1000 V and insulation resistance measurement ranges up to 4000 MΩ. These testers feature clear analog indication, live circuit checking, automatic discharge, AC voltage measurement and rugged field ready construction for testing motors, cables, panels, switchgear and electrical installations.
Customize
Share :
A. Product Overview
HIOKI Analog Insulation Testers are designed to measure the insulation resistance of electrical equipment and wiring systems. They help electricians and maintenance engineers evaluate the condition of insulation and identify deterioration, leakage or possible electrical faults.
The HIOKI analog range includes single range and multi range models for different testing requirements.
HIOKI IR4016-20
The IR4016-20 is a single range analog insulation tester with a rated test voltage of 500 V DC and insulation resistance measurement up to 100 MΩ.
HIOKI IR4017-20
The IR4017-20 is designed for 500 V insulation testing and provides insulation resistance measurement up to 1000 MΩ.
HIOKI IR4018-20
The IR4018-20 provides a 1000 V DC test voltage and insulation resistance measurement up to 2000 MΩ.
HIOKI 3490
The HIOKI 3490 is a three range analog insulation tester supporting 250 V, 500 V and 1000 V test voltages with insulation resistance measurement up to 4000 MΩ.
These instruments also include features such as illuminated analog scales, live circuit checking, battery indication, automatic discharge and AC voltage measurement.
B. Working Principle
A HIOKI Analog Insulation Tester works by applying a controlled DC test voltage across the insulation being tested.
The instrument measures the small amount of leakage current flowing through the insulation. Based on the applied voltage and measured leakage current, the tester calculates the insulation resistance and displays the value on an analog scale.
The resistance value is generally displayed in megohms.
A higher resistance value normally indicates stronger insulation condition, while a lower resistance value may indicate problems such as:
Moisture inside insulation
Aged or deteriorated insulation
Contamination
Damaged cables
Cracked insulation
Electrical leakage
The tester also includes an automatic discharge function that helps discharge stored electrical energy after completing an insulation resistance test.
C. Why HIOKI Analog Insulation Testers Are Used
HIOKI Analog Insulation Testers are used to check whether electrical insulation is safe and functioning correctly.
They are commonly used for:
- Motor insulation resistance testing
- Cable insulation testing
- Electrical panel inspection
- Switchgear insulation testing
- Transformer maintenance
- Industrial machine inspection
- Electrical wiring testing
- Preventive maintenance
- Troubleshooting leakage problems
- Testing equipment after repair or installation
Regular insulation resistance testing can help identify insulation deterioration before it causes equipment breakdown or electrical failure.
D. Suitable Buyers
HIOKI Analog Insulation Testers are suitable for:
Electrical contractors
Industrial maintenance engineers
Electrical maintenance departments
Motor repair workshops
Panel builders
Machine manufacturers
Electrical equipment manufacturers
Facility maintenance companies
Switchgear manufacturers
Power distribution contractors
Service technicians
HVAC maintenance teams
Electrical testing laboratories
Preventive maintenance teams
Industrial automation companies
They are especially suitable for users who prefer an analog indication for observing resistance changes during testing.
Frequently Asked Questions
1. What is a HIOKI Analog Insulation Tester?
A HIOKI Analog Insulation Tester is an electrical testing instrument used to measure insulation resistance in motors, cables, panels, switchgear and other electrical equipment.
2. Which HIOKI analog insulation tester models are available?
The range includes models such as HIOKI IR4016-20, IR4017-20, IR4018-20 and HIOKI 3490.
3. What is the test voltage of the HIOKI IR4016-20?
The HIOKI IR4016-20 provides a rated test voltage of 500 V DC.
4. What is the insulation resistance range of the HIOKI IR4016-20?
The IR4016-20 measures insulation resistance up to 100 MΩ.
5. What is the measuring range of the HIOKI IR4017-20?
The HIOKI IR4017-20 measures insulation resistance up to 1000 MΩ with a 500 V test voltage.
6. What is the maximum resistance measurement of the HIOKI IR4018-20?
The HIOKI IR4018-20 measures insulation resistance up to 2000 MΩ and provides a 1000 V DC test voltage.
7. What test voltages are available in the HIOKI 3490?
The HIOKI 3490 supports 250 V, 500 V and 1000 V insulation test voltages.
8. What is the maximum insulation resistance range of the HIOKI 3490?
The HIOKI 3490 can measure insulation resistance up to 4000 MΩ.
9. Can HIOKI Analog Insulation Testers be used for motors?
Yes. They are commonly used for checking the insulation resistance of electric motors and industrial machinery.
10. Can these testers be used for electrical cables?
Yes. HIOKI Analog Insulation Testers can be used for checking insulation resistance in electrical cables and wiring.
11. Can HIOKI Analog Insulation Testers measure AC voltage?
Yes. The referenced models support AC voltage measurement up to 600 V.
12. What is the live circuit check function?
The live circuit check helps indicate when voltage is present in the circuit before insulation resistance testing is performed.
13. What is the automatic discharge function?
The automatic discharge function helps release residual electrical charge from the tested circuit after an insulation resistance measurement.
14. What is the difference between analog and digital insulation testers?
Analog insulation testers display measurement values using a needle and scale, while digital insulation testers display numerical readings electronically. Analog testers can be useful for observing changing insulation resistance values during testing.
15. Are HIOKI Analog Insulation Testers suitable for industrial use?
Yes. They are suitable for motors, cables, switchgear, distribution panels, industrial machinery and general electrical maintenance applications.
16. Are HIOKI IR4016, IR4017 and IR4018 still available?
The referenced HIOKI product pages identify these models as discontinued products. Buyers should check current availability or suitable replacement HIOKI models before purchasing.
17. What are the replacement models for discontinued HIOKI analog insulation testers?
For some discontinued models, HIOKI lists digital models such as the IR4056 and IR4057-50 as replacements.