Hioki Earth Testers
Clamp-on and 4-pole earth resistance testers for grounding verification.
5 products found
Shop Hioki Earth Testers
FT6380-50
Hioki FT6380-50 Clamp-On Earth Tester
Clamp-on earth resistance tester (0.20Ω–1600Ω) for multi-grounded systems. True RMS, m...
FT6031-50
Hioki FT6031-50 Earth Tester 3-Pole
Compact earth tester with 3-pole and 2-pole measurement. IP67 dust/waterproof, drop-proof ...
FT3151
Hioki FT3151 Analog Earth Tester
Analog earth resistance tester with 2-pole and 3-pole (fall-of-potential) methods. 10Ω, 1...
FT6041
Hioki FT6041 4-Pole Earth Tester
Professional earth tester with 4-pole, 3-pole and 2-pole measurement. IP67 waterproof. 6 s...
FT6041-91
Hioki FT6041-91 4-Pole Earth Tester (Set)
Complete 4-pole earth tester set: the field-rugged FT6041 plus FT9847 and CT9848 clamps. S...
What is an Earth Resistance Tester?
An earth resistance tester measures the resistance of grounding systems (earth electrodes, grounding rods, foundation grounding). Low resistance means faults are safely drained to earth. High resistance means electrical faults can electrocute people or damage equipment.
Why this matters: India's soil conditions vary dramatically by region. Some areas have excellent conductivity; others have very high earth resistance. Testing ensures your grounding system works in YOUR soil, protecting against lightning, equipment failure, and electrocution.
Key advantage: A single lightning strike can cause ₹10,00,000+ in damage without proper grounding. An earth resistance tester (₹20,000–50,000) prevents catastrophic losses.
Why Choose Hioki Earth Testers?
Hioki earth testers are the industry standard for grounding verification in India:
1. Non-Interference Measurement (3-Pole Method)
Traditional 2-electrode testing can be affected by nearby grounding systems. Hioki's 3-electrode method eliminates interference, giving you true earth resistance regardless of nearby installations.
2. Wide Measurement Range (0.01Ω to 300Ω)
From excellent grounding (<1Ω) to marginal grounding (>50Ω), Hioki testers cover the full range. You'll know exactly where your system stands.
3. Automatic Electrode Separation
Hioki testers can measure with electrodes at different distances (1m, 5m, 10m, 20m). This reveals how resistance changes with depth—critical for understanding your soil.
4. Data Logging for Trending
Measure your earth resistance quarterly or annually. Trending shows degradation over time, alerting you to problems before they cause failure.
5. Portable & Battery-Powered
No need for external power. Test earth systems anywhere—solar installations, substations, construction sites, remote locations.
Popular Hioki Earth Resistance Tester Models
From simple handheld testers to advanced systems with data logging:
| Model | Range | Method | Best For | Data Logging |
|---|---|---|---|---|
| FT6380-50 | 0.20Ω–1600Ω | Clamp-on | Multi-grounded systems: towers, tanks, grids | Yes |
| FT6031-50 | 0–2000Ω | 2-Pole / 3-Pole | Residential & light commercial checks | No |
| FT3151 | 10Ω / 100Ω / 1000Ω | 2-Pole / 3-Pole (Analog) | Simple fall-of-potential field checks | No |
| FT6041 | Soil resistivity + earth resistance | 4-Pole / 3-Pole / 2-Pole | Grounding design & professional installation | Optional (Bluetooth) |
| FT6041-91 | Soil resistivity + earth resistance | 4-Pole / 3-Pole / 2-Pole / MEC / 2-Clamp | Complete kit — clamps included | Optional (Bluetooth) |
Earth Resistance Testing Applications in Indian Industry
Earth testing is mandatory for these applications:
Solar PV Installation & Lightning Protection
Verify grounding system can handle lightning strikes. Test array grounding, inverter grounding, and DC disconnect grounding separately.
Electrical Panel & Distribution Testing
Verify main earth electrode meets code requirements (<5Ω for India). Check earth connections at panels, transformers, and critical equipment.
Industrial Equipment Grounding
Test earth resistance for machinery, control systems, and safety-critical equipment. Ensure personnel protection from electrical faults.
Lightning Protection System Verification
Verify lightning rods and grounding conductors. Annual testing ensures lightning strikes are safely conducted to earth without damage.
Data Center & IT Infrastructure
Critical equipment requires <5Ω earth resistance. Poor grounding causes equipment failure and data loss. Regular verification prevents disasters.
Regulatory Compliance & Inspection
Many electrical codes and insurance policies require documented earth testing. Hioki testers provide proof for compliance and audits.
Frequently Asked Questions
What earth resistance should I target?
Why does my earth resistance keep increasing?
Can I improve earth resistance if it's too high?
What's the difference between 2-pole and 3-pole testing?
How often should I test earth resistance?
Why is earth resistance important for solar systems?
Can I use earth testing equipment in wet or humid conditions?
Buy Hioki Earth Testers in India
Industrial Supply Syndicate is an authorized independent reseller of Hioki earth testers in India. We stock the complete range and ship pan India with GST invoice. For bulk orders, institutional procurement, and tender requirements, please contact us for special pricing.