AEMC 2141.03 Model 6418 Clamp-On Ground Resistance Tester
AEMC
Electrical contractors, facility managers, safety inspectors, and maintenance professionals who demand reliable ground resistance measurements without system interruption.
£1,269.28
The AEMC 2141.03 Model 6418 clamp-on ground resistance tester is a professional-grade instrument designed for accurate ground resistance measurements without system disconnection. This comprehensive guide covers everything you need to know about this popular earth resistance meter.
What is the AEMC Model 6418 Ground Resistance Tester?
The AEMC 6418 is a clamp-on ground resistance tester that uses electromagnetic induction to measure ground electrode resistance without disconnecting grounding systems. This non-intrusive testing method makes it ideal for live electrical installations.
Key Features & Benefits
Advanced Clamp-On Technology
- No disconnection required: Test ground rods while systems remain energized
- Electromagnetic induction principle: Accurate measurements through dual-jaw design
- Safe operation: No contact with live conductors needed
- Time-saving: Quick measurements without system shutdown
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | AEMC 2141.03 Model 6418 |
| Resistance Range | 0.025Ω to 1500Ω |
| Resolution | 0.001Ω to 1Ω (range dependent) |
| Accuracy | ±3% of reading ±3 digits |
| Jaw Opening | Up to 32mm (1.26") diameter |
| Display | Large LCD with backlight |
| Operating Temperature | -10°C to 50°C (14°F to 122°F) |
| Power | 6 × AA batteries |
| Weight | Approximately 1.2kg (2.6 lbs) |
Applications & Use Cases
Industrial Applications
- Power plants: Ground grid testing
- Substations: Equipment grounding verification
- Manufacturing facilities: Safety compliance checks
- Data centers: Critical equipment protection
Commercial & Residential
- Building electrical systems
- Lightning protection systems
- Telecommunications grounding
- Solar panel installations
How to Use AEMC 6418 Ground Resistance Tester
Step-by-Step Operating Guide
Preparation
- Ensure batteries are charged
- Clean conductor surfaces if necessary
- Check jaw alignment
Measurement Process
- Open clamp jaws around ground conductor
- Ensure complete jaw closure
- Press measurement button
- Read resistance value on display
Recording Results
- Document measurements for compliance
- Compare with safety standards
- Schedule follow-up testing if needed
Advantages vs Traditional Methods
AEMC 6418 Benefits
✅ No system shutdown required ✅ Faster testing process ✅ Safer operation ✅ No auxiliary electrodes needed ✅ Works on live systems
Troubleshooting Common Issues
Low or Inconsistent Readings
- Check jaw alignment: Ensure complete closure
- Clean conductors: Remove corrosion or debris
- Verify conductor size: Must fit within jaw opening
- Check battery level: Low power affects accuracy
Error Messages
- "OL" Display: Resistance exceeds measurement range
- Unstable readings: Electromagnetic interference present
- No display: Battery replacement needed
Maintenance & Calibration
Regular Maintenance
- Monthly: Battery check and cleaning
- Quarterly: Calibration verification
- Annually: Professional calibration service
- As needed: Jaw alignment check
Storage Requirements
- Store in protective case
- Remove batteries for long-term storage
- Keep in dry, temperature-controlled environment
- Avoid extreme temperatures
Frequently Asked Questions (FAQ)
Q: Can the AEMC 6418 test multiple ground rods?
A: Yes, it measures the combined resistance of parallel ground electrodes in the circuit.
Q: What's the minimum conductor size for testing?
A: The conductor must be large enough to ensure proper jaw contact, typically 6mm minimum.
Q: Does it work on aluminum conductors?
A: Yes, it works on both copper and aluminum grounding conductors.
Q: How often should I calibrate the unit?
A: Annual calibration is recommended for professional use, or as required by local standards.
Q: Can I use it in wet conditions?
A: The unit has weather-resistant design but avoid direct water exposure.
- Model: 6418
- SKU: AEMC21
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Brand:
