Fluke 1630 Earth Ground Clamp Meter

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.



Description

General Specifications
Operating error
 Refers 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. range
 23 °C ± 5 °C (73 °F ± 9 °F)
Storage humidity
 <75 % Rh
Operating humidity
 <85% Rh
Display
 999 digital LC display with special symbols
Protection
 IP30 according to IEC 529/EN 60529
Safety
 300 V, CAT III pollution degree 2 IEC 61010-1 and IEC 61010-2-032
Weight
 750 g (1.165 lbs)
Conductor size
 35 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)
Emission
 IEC 1000 4-2, IEC 61326-I class B
Immunity
 IEC 61000-4-2, 8 kV (air) criteria A
 IEC 61000-4-3, 3 V/m performance criteria A
Range selection
 Auto
Overload indicator
 “OL” on display
Measuring time
 0.5 sec
Measuring frequency
 3.333 kHz
Battery type
 9 V alkaline (type IEC 6 LR 61)
Battery life
 ≥ 8 hours (continuous operation)
Power consumption
 40 mA
Low battery indication
 Display symbol
Ground Loop Resistance (Autorange)
Range
 Accuracy
(± % 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 %
Note:
 Loop resistance with no inductance, external magnetic field < 50A/m, external electrical field < 1 V/m, conductor centered.
Fluke 1630 Earth Ground Clamp Meter