MOHAMMAD MAHDI Electronics Trading LLC
Kyoritsu KEW 4200 Earth Clamp Tester Review | Specs, Features & Expert Guide
0
In modern electrical maintenance, grounding verification must be performed quickly, safely, and accurately.
The Kyoritsu KEW 4200 Earth Clamp Tester is designed specifically for professionals who need to measure
earth resistance in multi‑grounding systems without using auxiliary ground spikes.
This clamp‑type tester simplifies grounding inspections and significantly reduces testing time in complex installations.
Quick Overview
The KEW 4200 allows technicians to measure earth resistance from 0.05Ω to 1500Ω and detect
True RMS leakage current up to 30A using a clamp mechanism. This eliminates the need for additional rods or wires during testing in multiple earthing systems.
Ask Price on WhatsApp
The KEW 4200 allows technicians to measure earth resistance from 0.05Ω to 1500Ω and detect
True RMS leakage current up to 30A using a clamp mechanism. This eliminates the need for additional rods or wires during testing in multiple earthing systems.
Ask Price on WhatsApp
Why Professionals Choose the KEW 4200
Clamp-style earth testers have become increasingly popular because they eliminate complicated test setups.
The Kyoritsu KEW 4200 focuses on efficiency and reliability, enabling technicians to perform grounding inspections without interrupting system operation.
- No auxiliary earth spikes required for multi‑grounding systems
- Measures both earth resistance and leakage current
- True RMS current measurement ensures accurate readings
- Noise filter improves measurement stability
- Stores up to 100 measurement results
- IEC CAT IV 300V safety rating
SEO Insight (Helpful Content)
One of the most important benefits of the KEW 4200 is its ability to measure ground resistance without interrupting the grounding system.
This feature makes it ideal for industrial plants, telecommunications towers, substations, and large buildings with interconnected grounding networks.
One of the most important benefits of the KEW 4200 is its ability to measure ground resistance without interrupting the grounding system.
This feature makes it ideal for industrial plants, telecommunications towers, substations, and large buildings with interconnected grounding networks.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Earth Clamp Tester |
| Model | Kyoritsu KEW 4200 |
| Earth Resistance Range | 0.05Ω – 1500Ω |
| Resistance Ranges | 20Ω / 200Ω / 1500Ω (Auto‑range) |
| AC Current Measurement | 0.1mA – 30A True RMS |
| Measurement Frequency | Approx. 2400Hz injection |
| Response Time | 7 seconds (resistance), 2 seconds (current) |
| Memory | 100 measurement records |
| Conductor Size | Approx. Ø32mm |
| Power Supply | 4 × AA Batteries |
| Dimensions | 246 × 120 × 54 mm |
| Weight | Approx. 780 g |
| Safety Standards | IEC 61010‑1 CAT IV 300V |
Expert Tips: Getting the Most Accurate Results
Tip 1 – Ensure a Multiple Earthing System
The KEW 4200 only works correctly when the grounding system has multiple earth connections.
If the system has only a single ground electrode, the measurement will not be valid.
Tip 2 – Use the Noise Filter in Industrial Environments
In locations with heavy electrical noise (such as factories or substations), enable the filter function to stabilize the measurement signal.
Tip 3 – Clamp Around a Single Conductor Only
Avoid clamping around multiple grounding conductors at once. This can cause inaccurate resistance readings.
Tip 4 – Check Leakage Current
Monitoring leakage current during ground testing can reveal insulation problems or unexpected current paths in the earthing network.
Troubleshooting Common Measurement Problems
Problem: OL appears on the screen
This usually means the measured value exceeds the selected range or the circuit condition is unsuitable for clamp measurement.
Problem: Measurement fluctuates heavily
High electromagnetic noise or poor clamp positioning may cause unstable readings.
Problem: Unexpectedly high resistance value
Check whether the grounding system actually contains multiple ground electrodes.
Typical Applications
- Industrial grounding inspections
- Telecommunication tower grounding systems
- Power distribution network maintenance
- Lightning protection grounding verification
- Preventive maintenance in large facilities
Important Limitation
The KEW 4200 cannot measure a single grounding electrode.
It is specifically designed for interconnected grounding networks where multiple earth paths exist.
The KEW 4200 cannot measure a single grounding electrode.
It is specifically designed for interconnected grounding networks where multiple earth paths exist.
Final Verdict
The Kyoritsu KEW 4200 is a powerful and practical earth clamp tester designed for professionals who need efficient grounding measurements in complex electrical systems.
With its ability to measure earth resistance without auxiliary rods, combined with True RMS current measurement and built‑in noise filtering, it offers a reliable solution for fast field inspections.
Need Price & Stock Availability?
Contact our sales team for current availability, quotation, and delivery details for the Kyoritsu KEW 4200.
Get Price & Stock on WhatsApp / استعلام السعر والتوفر واتساب
حتى إذا لم يكن المنتج موجودًا على الموقع، سيتواصل فريق المبيعات بسرعة.
Call: 04 447 6031
Featured Thermal Camera
Featured Multimeters
Call for price
(3 reviews)
Other Blogs
Call for price
(5 reviews)
Featured Clamp Meters
Recent posts
Bench Multimeters