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Fluke
Fluke 1625-2 GEO Earth Ground Tester
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Fluke 1625-2 GEO: AFC; multi-freq; R* 55 Hz; selective/stakeless. RFQ.
Download datasheet PDF
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Key parameters
Measuring range
Earthing resistance 3-/4-pole with/without clamp; soil resistivity; stakeless; interference voltage/frequency; 2-pole AC and 2-/4-pole DC resistance
Accuracy
RE 0.020 Ω–30 kΩ class ±(2% rdg + 2 digit) intrinsic (per 1625-2 Technical Data tables); selective/stakeless wider tolerances
Supply
6 × 1.5 V AA alkaline (IEC LR6)
Approvals
IEC 61010-1; IEC 61326-1
Notes
Specs from Fluke 1623-2/1625-2 Technical Data + fluke.com 1625-2 page. 1625-2 adds AFC, R*, adjustable limits vs 1623-2.
Measure Frequency
94/105/111/128 Hz manual or AFC; 55 Hz in R* function
Fits advanced earth-ground diagnostics where you need a Fluke 1625-2 GEO—3-/4-pole RA with Automatic Frequency Control (94/105/111/128 Hz), R* earth impedance at 55 Hz, selective/stakeless methods, and USB storage up to about 1500 records.
Key advantages
- AFC — Automatic Frequency Control across 94/105/111/128 Hz
- R* — Earth impedance at 55 Hz
- Methods — 3-/4-pole with/without clamp; soil resistivity; stakeless
- Accuracy — RE class ±(2% rdg + 2 digit) intrinsic (per Tech Data)
- Memory — Up to ~1500 USB records; adjustable limits
Typical applications
- Critical facility grounding surveys.
- Interference-prone sites (AFC).
- Selective clamp grounding tests.
Selection guide
- vs 1623-2
- Clamp kit
- Limit setpoints
Common mistakes
- Leaving AFC off in noisy sites.
- Wrong clamp orientation.
- Ignoring interference voltage/current readings.
When to RFQ / what to tell us
- Kit/clamps.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 40217 |
| Brand | Fluke |
| Model | 1625-2 GEO |
| Product type | Earth Ground Tester |
| Measuring range | Earthing resistance 3-/4-pole with/without clamp; soil resistivity; stakeless; interference voltage/frequency; 2-pole AC and 2-/4-pole DC resistance |
| Accuracy | RE 0.020 Ω–30 kΩ class ±(2% rdg + 2 digit) intrinsic (per 1625-2 Technical Data tables); selective/stakeless wider tolerances |
| Measure frequency | 94/105/111/128 Hz manual or AFC; 55 Hz in R* function |
| Advanced features | Automatic Frequency Control (AFC); R* earth impedance at 55 Hz; adjustable limits |
| Memory | Internal storage up to 1500 records via USB |
Documents
FAQ
Q: AFC? A: Yes — Automatic Frequency Control.
**Q: R* frequency?** A: 55 Hz.
Q: What should I send for a quote? A: Kit options, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Earthing resistance 3-/4-pole with/without clamp; soil resistivity; stakeless; interference voltage/frequency; 2-pole AC and 2-/4-pole DC resistance |
| Accuracy | RE 0.020 Ω–30 kΩ class ±(2% rdg + 2 digit) intrinsic (per 1625-2 Technical Data tables); selective/stakeless wider tolerances |
| Supply | 6 × 1.5 V AA alkaline (IEC LR6) |
| Approvals | IEC 61010-1; IEC 61326-1 |
| Notes | Specs from Fluke 1623-2/1625-2 Technical Data + fluke.com 1625-2 page. 1625-2 adds AFC, R*, adjustable limits vs 1623-2. |
| Measure Frequency | 94/105/111/128 Hz manual or AFC; 55 Hz in R* function |
| Advanced Features | Automatic Frequency Control (AFC); R* earth impedance at 55 Hz; adjustable limits |
| Memory | Internal storage up to 1500 records via USB |
| Ingress Protection | IP56 case; IP40 battery door (EN 60529) |
| Dimensions | 250 × 133 × 187 mm |
| Weight | ≤ 1.1 kg without accessories |
| Operating Temperature | −10 to 50 °C |