Kyoritsu 2434 Leakage Current Clamp Meter
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A. Product Overview
The Kyoritsu KEW 2434 Leakage Current Clamp Meter is designed for accurate measurement of small AC leakage currents as well as normal AC current in electrical systems.
Its high sensitivity makes it useful for detecting current leakage that may indicate insulation deterioration, wiring problems, equipment faults, or unwanted current flowing to earth.
The meter provides measuring ranges of 400 mA, 4 A, and 100 A AC with a minimum resolution of 0.1 mA. The 28 mm clamp jaw allows the instrument to be positioned around a conductor without breaking the electrical circuit.
A built in frequency selector helps reduce the influence of harmonics, making leakage current measurements more useful in installations containing electronic loads, control systems, and other equipment that can generate harmonic components.
The KEW 2434 is designed for use in electrical maintenance and troubleshooting applications and complies with IEC 61010 CAT III 300 V safety requirements.
B. Working Principle
The Kyoritsu KEW 2434 works by sensing the magnetic field produced by AC current flowing through a conductor.
When the clamp jaws are placed around an individual conductor, the meter measures the AC current flowing through that conductor.
For leakage current measurement, the clamp can be placed around multiple current carrying conductors of the same circuit. Under normal operating conditions, the magnetic fields created by the outgoing and returning current largely cancel each other.
If some current is leaking to earth or another unintended path, there will be an imbalance between the outgoing and returning currents. The KEW 2434 detects this difference and displays the resulting leakage current.
Its 0.1 mA resolution allows relatively small leakage currents to be detected. The frequency selector can also be used to reduce the effects of higher frequency harmonic components when necessary.
C. Why It Is Used
The Kyoritsu KEW 2434 is used to identify and measure unwanted AC leakage current in electrical installations and equipment.
It can help maintenance personnel detect problems before they develop into major electrical faults. Leakage current can be caused by damaged insulation, ageing cables, moisture, faulty electrical equipment, wiring problems, or deterioration of electrical components.
Typical uses include:
- Earth leakage current measurement
- Electrical insulation condition monitoring
- Preventive electrical maintenance
- Troubleshooting leakage related electrical faults
- Testing industrial electrical panels
- Checking machines and electrical equipment
- Investigating nuisance tripping of protective devices
- Measuring AC current up to 100 A
- Checking electrical systems without disconnecting conductors
- Monitoring leakage current in industrial and commercial installations
D. Suitable Buyers
The Kyoritsu KEW 2434 Leakage Current Clamp Meter is suitable for:
Electrical Maintenance Engineers
For routine inspection and troubleshooting of industrial electrical systems.
Electricians
For detecting leakage current in commercial, residential, and industrial electrical installations.
Industrial Maintenance Teams
For preventive maintenance of motors, control panels, machines, and electrical distribution systems.
Electrical Contractors
For installation testing and troubleshooting at customer sites.
Facility Management Companies
For monitoring electrical installations in factories, offices, hospitals, hotels, shopping centres, and commercial buildings.
Panel Builders
For testing electrical panels and outgoing circuits during inspection and commissioning.
Service Engineers
For diagnosing electrical equipment and identifying abnormal leakage current.
Factories and Manufacturing Plants
For routine electrical safety inspections and maintenance.
Testing and Inspection Professionals
For electrical testing, preventive maintenance, and equipment condition assessment.
Frequently Asked Questions
1. What is the Kyoritsu KEW 2434 used for?
The KEW 2434 is primarily used for measuring AC leakage current and AC load current in electrical installations, equipment, machines, and distribution systems.
2. What is the minimum resolution of the KEW 2434?
The Kyoritsu KEW 2434 provides a minimum leakage current resolution of 0.1 mA.
3. What current ranges are available in the Kyoritsu KEW 2434?
The meter provides AC current measuring ranges of 400 mA, 4 A, and 100 A.
4. What is the maximum AC current that KEW 2434 can measure?
The Kyoritsu KEW 2434 can measure AC current up to 100 A.
5. What is the jaw size of the Kyoritsu KEW 2434?
The maximum conductor diameter that can be accommodated by the clamp is approximately 28 mm.
6. Can the KEW 2434 measure earth leakage current?
Yes. The KEW 2434 is specifically designed for high sensitivity earth leakage current measurement.
7. Does the KEW 2434 require the electrical wire to be disconnected?
No. The clamp meter allows current to be measured by clamping around the conductor, so the circuit normally does not need to be disconnected for measurement.
8. What is the frequency response of the Kyoritsu KEW 2434?
The KEW 2434 supports a frequency response of approximately 40 Hz to 400 Hz.
9. Does the Kyoritsu KEW 2434 have a harmonic filter function?
The meter includes a frequency selector that can help reduce the influence of harmonic components during leakage current measurement.
10. Is the Kyoritsu KEW 2434 suitable for industrial applications?
Yes. It is suitable for industrial electrical maintenance, control panels, machinery, power distribution systems, and preventive maintenance applications.
11. What is the safety category of the KEW 2434?
The Kyoritsu KEW 2434 complies with IEC 61010 CAT III 300 V safety requirements.
12. Can the KEW 2434 be used for preventive maintenance?
Yes. Regular leakage current measurements can help identify deteriorating insulation, abnormal leakage, and potential electrical faults before they result in equipment failure or unexpected shutdowns.
13. Who should use the Kyoritsu KEW 2434?
It is suitable for electricians, electrical engineers, maintenance engineers, service technicians, panel builders, contractors, facility managers, and industrial maintenance departments.
14. Is Kyoritsu KEW 2434 suitable for troubleshooting RCD or earth leakage problems?
Yes. Measuring leakage current can help technicians investigate electrical leakage conditions and understand possible causes of nuisance operation of earth leakage protection devices.