Fluke 1630 Earth Ground Clamp Meter

Fluke 1630 Earth Ground Clamp Meter

Pine Item #54906

Earth Ground loop resistance measurements for commercial, industrial, and utility applications

The clamp-on ground testing technique used by the Fluke 1630 simplifies ground loop testing and enables non-intrusive leakage current measurement. The compact and rugged design makes the Fluke 1630 easy to use in small places and harsh environments, while the "˜display hold' and the continuity testing with an audible alarm function ensures convenience in use.  The novel technique means that earth ground loop testing and continuity testing can be completed without breaking the circuit.

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, including 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 placed 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.  For stakeless testing at least two ground rods (or ground connections of the ground system under test to earth) are required to close the loop the test voltage is induced.


A wide ground loop resistance range from 0.025 O to1500 O to satisfy all requirements

Large jaw opening of 35 mm (1.38 in) for tests on ground conductors and/or equipotential bus bars

Measurement of ground leakage current from 0.2 mA to 1000 mA without needing to disconnect - ideal for system troubleshooting

Wide ac current measurement range from 0.2 A to 30 A allows one instrument for multiple applications

User-defined HI / LO Alarm limits for rapid measurement evaluation

Handy ‘display hold’ button for capturing readings in hard-to-reach places

Time saving memory function automatically records and stores measured values

Automatic self calibration ensures correct measurement every time

Overload protection: 200 A

Carrying case and resistance test loop included

= 8 hours battery life (continuous operation)

Quantity must be 1 or more
Equipment available for both rental and purchase
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Technical 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)\n
Reference temp. range23 °C ± 5 °C (73 °F ± 9 °F)\n
Storage humidity<75 % Rh\n
Operating humidity<85% Rh\n
Display999 digital LC display with special symbols\n
Protection IP30 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 (length x width x depth)276 mm x 100 mm x 47 mm (10.8 in x 3.9 in x 1.9 in)
EmissionIEC 1000 4-2 IEC 61326-I class B
Immunity IEC 61000-4-2 8 kV (air) criteria A\n 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)\n
Power consumption40 mA
Low battery indicationDisplay symbol
Range:Accuracy\n(± % of reading O):\n
0.025 - 0.250 O± 1.5 % rdg ± 0.02 O\n
0.250 - 9.999 O± 1.5 % rdg ± 0.05 O\n
10.00 - 99.99 O± 2.0 % rdg ± 0.3 O\n
100.0 - 199.9 O± 3.0 % rdg ± 1.0 O
200.0 - 400.0 O± 5.0 % rdg ± 5 O\n
400.0 - 600.0 O ± 10 % rdg ± 10 O
600.0 - 1500 O ± 20 %
Note:Loop resistance with no inductance external magnetic field < 50A/m external electrical field < 1 V/m conductor centered.\n
Manuals & Data Sheets