Description
Fluke 1630 Calibration
The Fluke 1630 is an earth ground tester. These are calibrated across their resistance ranges, and on the stakeless and clamp-on models the verification also has to cover the induced-current measurement, which is a different mechanism from the three-pole fall-of-potential method and drifts independently of it.
Calibration of the Fluke 1630 is performed at June Company for electrical contractors, utility crews, lightning protection installers, and inspection teams. Every point is measured against reference standards, with as-found readings recorded before any adjustment and as-left readings afterwards, so you can see what condition the instrument was actually in when it arrived.
What we verify on the Fluke 1630
- Voltage and continuity functions.
- Jaw alignment on clamp-on models.
- Earth resistance across all ranges.
- Stakeless or clamp-on measurement where fitted – a separate mechanism that can drift while the staked measurement stays accurate.
- Soil resistivity measurement where fitted.
- Auxiliary electrode resistance detection.
FAQs
Can it be adjusted if it has drifted? Where the instrument supports adjustment, yes – and the as-found and as-left readings are both recorded so the change is visible.
Do I get as-found data, or only the final result? Both. As-found readings are recorded before any adjustment and as-left afterwards, which is what tells you whether the instrument was in tolerance during the work you already did with it.
Calibration is documented and returned with the instrument. If we find a fault that calibration cannot correct, we quote the repair before going any further. Email us or submit a service request.



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