AEMC
AEMC 4620 measurement tool
Measures ground resistance up to 2000 Ω and soil resistivity with a 128 Hz test current from 0.1 to 10 mA
- TypeElectronic
- Measures ground resistance up to 2000 Ω with auto-ranging
- Tests soil resistivity using the 4-point method
- Operates at 128 Hz to reject stray-current interference
- Withstands 250 V AC and 100 V DC for safety
- Powered by 9.6 V 3.5 Ah NiMH rechargeable batteries
Earth Ground Tester, 128 Hz, 42 VAC
The AEMC 4620 is a digital 4-point ground resistance tester that measures from 0 to 2000 Ω with auto-ranging. It operates at 128 Hz using a square-wave test current between 0.1 and 10 mA. Typical accuracy is 2 % of reading plus one count. The instrument withstands up to 250 V AC or 100 V DC and features a large LCD with low-battery and over-range indicators.
Field crews needing soil resistivity data
Maintenance teams performing repeated ground resistance and soil resistivity tests will benefit from the rugged, interference-rejecting design. Users who require built-in data logging, Bluetooth connectivity, or clamp-on measurement capability should consider other models.
Auto-ranging 0–2000 Ω measurement span
The single specification that decides suitability is the auto-ranging 0 to 2000 Ω measurement span combined with the 128 Hz test frequency. If the site requires a different frequency or a wider resistance range, this tester will not meet the requirement.
Highlights
- Measures ground resistance up to 2000 Ω with auto-ranging
- Tests soil resistivity using the 4-point method
- Operates at 128 Hz to reject stray-current interference
- Withstands 250 V AC and 100 V DC for safety
- Powered by 9.6 V 3.5 Ah NiMH rechargeable batteries
Specifications
| Brand | Aemc |
|---|---|
| Type | Electronic |
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