Fluke 1630 Ground Resistance Meter

Fluke 1630 Ground Resistance Meter is rated 5.0 out of 5 by 6.
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  • Fluke 1630 Earth Ground Clamp Meter
  • Fluke 1630 Earth Ground Clamp Meter
  • Fluke 1630 Earth Ground Clamp Meter
  • Fluke 1630 Earth Ground Clamp Meter

Key features

  • A compact, rugged clamp meter that enables non-intrusive leakage current measurement for earth ground loop testing
  • Features a wide ground loop resistance range, from 0.025 Ω to1500 Ω7
  • Measures ground leakage current, from 0.2 mA to 1000 mA, without needing to disconnect
  • Measures AC current from 0.2 A to 30 A

Product overview: Fluke 1630 Ground Resistance Meter

Fluke 1630 Earth Ground Clamp Meter uses stakeless method to simplify ground loop testing

The clamp-on ground testing technique provided by the Fluke 1630 simplifies ground loop testing and enables non-intrusive leakage current measurement without breaking the circuit. Its compact and rugged design makes the Fluke 1630 easy to use in small places and harsh environments. Handy features like “display hold” and continuity testing with an audible alarm, ensures additional convenience.

Stakeless testing system

The Fluke 1630 uses the stakeless testing method, which eliminates the need to disconnect parallel ground rods and find suitable locations for placing auxiliary ground stakes. This saves time and enables users such as industrial and utility electricians, and field service electricians and contractors, to perform earth ground loop tests in locations where it is not possible to use other techniques, such as inside buildings or on power pylons. With the stakeless testing method, earth ground stakes are no longer necessary. The Fluke 1630 Earth Ground Clamp is clamped around the earth ground rod or the connecting cable. A known voltage is induced by one half of the clamp and the current is measured by the other half. The tester automatically determines the ground loop resistance at this grounding connection.

Other useful capabilities:

  • Provides a large jaw opening of 35 mm (1.38 in) for tests on ground conductors and/or equipotential bus bars
  • Offers user-defined HI/LO Alarm limits for rapid measurement evaluation
  • Includes a handy ‘display hold’ button to capture readings in hard-to-reach places
  • Automatically records and stores measured values with time saving memory function
  • Provides automatic self calibration to ensure correct measurements every time
  • Provides overload protection to 200 A
  • Delivers ≥ 8 hours battery life (continuous operation
  • Comes with a carrying case and resistance test loop

Specifications: Fluke 1630 Ground Resistance Meter

General Specifications
Operating errorRefers to the operating temperature range and is guaranteed for 2 years
Storage temp. range-20°C to 60°C (-4°F to 140°F)
Reference temp. range23°C ±5°C (73°F ±9°F)
Storage humidity< 75% Rh
Operating humidity< 85% Rh
Display999 digital LC display with special symbols
ProtectionIP30 according to IEC 529/EN 60529
Safety300 V, CAT III pollution degree 2 IEC 61010-1 and IEC 61010-2-032
Weight750 g (1.165 lbs)
Conductor size35 mm (1.38 in) approximately
Dimension (L x W x D)276 x 100 x 47 mm (10.8 x 3.9 x 1.9 in)
EmissionIEC 1000 4-2, IEC 61326-I class B
ImmunityIEC 61000-4-2, 8 kV (air) criteria A
IEC 61000-4-3, 3 V/m performance criteria A
Range selectionAuto
Overload indicator"OL" on display
Measuring time0.5 sec
Measuring frequency3.333 kHz
Battery type9 V alkaline (type IEC 6 LR 61)
Battery life≥ 8 hours (continuous operation)
Power consumption40 mA
Low battery indicationDisplay symbol
Ground Loop Resistance (Autorange)
(±% of reading Ω)
0.025 - 0.250 Ω±1.5% rdg ±0.02 Ω
0.250 - 9.999 Ω±1.5% rdg ±0.05 Ω
10.00 - 99.99 Ω±2.0% rdg ±0.3 Ω
100.0 - 199.9 Ω±3.0% rdg ±1.0 Ω
200.0 - 400.0 Ω±5.0% rdg ±5 Ω
400.0 - 600.0 Ω±10% rdg ±10 Ω
600.0 - 1500 Ω±20%
Loop resistance with no inductance, external magnetic field < 50A/m, external electrical field < 1 V/m, conductor centered.

Models: Fluke 1630 Ground Resistance Meter

Fluke 1630
Fluke 1630 Earth Ground Clamp Meter
Buy it


  • Rugged carrying case with shoulder strap
  • Resistance test loop
  • 9 V battery
  • User's manual

Reviews: Fluke 1630 Ground Resistance Meter

Rated 5 out of 5 by from Very Dependable !!!!! I am using this couple of years and its a very great tools. Thank you FLUKE
Date published: 2016-12-13
Rated 5 out of 5 by from Very easy to use. I have been using this ground meter for a few years. It is much easier to use than a stake based meter and for checking ground rod resistance, it is quick and easy.
Date published: 2016-12-07
Rated 5 out of 5 by from Simplified!!! Great equipment easy to handle and use. The clamp on sensing unit makes ground testing easy to accomplish.
Date published: 2016-12-07
Rated 5 out of 5 by from Great portable device We bought this device a month ago to check the safety level in the explosion-proof areas of the plant (grounding on production equipment, varnish drums, etc.). Very easy to connect, easy-to-follow instructions and easy to carry. Would recommend this to other professionals.
Date published: 2016-12-07
Rated 5 out of 5 by from Easty to Use Just recently got one of these. Really helped expand our testing capability. Easy to read while outside.
Date published: 2016-12-07
Rated 5 out of 5 by from Remember to use it with Main Bounding Jumper set Check the Principles of Earth Grounding 3, 0:53 video. It's showing a fluke 1630 shown a reading over an GEC not with being connected to a MBJ. This is an big mistake in that Fluke 1630 only reads on a Earth Ground Loop circuit. There must be a ground loop before you can measure Resistance, therefore you need another GEC made to the center tap of a transformer or other generator device. I apreciate all your presentation videos.
Date published: 2015-02-02
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