Ground Integrity Redefined: AEMC Clamp‑On Ground Resistance Testers

Ensuring safe and effective grounding systems is critical—whether you're working with utility poles, industrial busbars, grounding grids, or building pads. AEMC’s clamp‑on series delivers fast, accurate ground resistance and impedance testing without the need for auxiliary rods, making it ideal for maintaining integrity in live or multi‑grounded systems.

Model 6416 – Compact, No‑Stakes Ground Loop Testing

An entry-level but powerful handheld tester designed for straightforward field diagnostics:

• Functionality: Measures loop impedance (0.01–1500 Ω) and leakage current (0.2 mA to 40 A) via a single clamp-on jaw — no leads, no disconnections required.
• Safety features: Touch-voltage indication, loop-resistance alerts, and selectable test frequency (50 Hz, 60 Hz, 128 Hz, or 2083 Hz) to improve accuracy in inductive environments.
• Display & memory: Bright OLED display, auto‑hold and memory recall; stores up to 300 measurements with timestamp.

Use Cases:

• Electrical contractors verifying grounding rods or grids.
• Utility crews checking grounding integrity on distribution poles.
• Maintenance teams validating bond continuity under energized conditions.

Model 6417 – Advanced Features with Wireless Connectivity

Builds on the 6416 with enhanced memory, alarms, and Bluetooth for data logging:

• All core features of 6416, plus wireless data capability.
• Bluetooth connectivity allows data transfer to PC or Android via DataView® software; stores up to 2,000 measurements (Ω and/or A) with date/time stamps.
• Alarms & safety: Visual and audible alerts for voltage, current, or resistance thresholds; retains settings through power-off.

Use Cases:

• Field technicians needing on‑site alarms and data‑log backups.
• Engineers conducting periodic audits or maintenance across multiple sites.
• Users who require easy export and report generation using the DataView® ecosystem.

Model 6418 – Larger Clamp Capacity for Busbar & Grid Testing

Designed for larger conductors and advanced loop diagnostics in complex systems:

• Wide jaw design: Accommodates conductors and busbars up to ~1.18 × 1.57 in (30 × 40 mm), ideal for overhead or large-ground conductors.
• Accurate impedance & current readings: Measures ground rod, busbar, and grid resistance with auto-hold, alarms, and memory (stores up to 300 readings).
• Display: OLED screen visible in direct sunlight; buzzer and visual indicators for unsafe touch voltage or noise interference.
• Compliance: Meets IEC safety standards (CAT III/IV per product manual).

Use Cases:

• Grounding validation on large electrical service panels or earthing grids.
• Field diagnostics in industrial substations or large building installations.
• Applications where conductor dimensions exceed typical clamp sizes.

Clamp-On Earth Tester Comparison

Which Model Suits Your Needs?

• Choose 6416 when you need a rugged, low-touch, cost-efficient way to check grounding resistance in standard installations.
• Upgrade to 6417 if wireless wire-free data transfer, reporting, or a higher storage capacity is important.
• Opt for 6418 when working with large conductors or busbars common in utility, industrial, or lightning protection systems where jaw clearance is critical.

With AEMC’s clamp-on testers, you get safe, efficient, and accurate ground resistance testing—even in energized or complex grounding systems. Reach out to our team to match the ideal model for your facility or field application.