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Fluke 1623 Ground Testers

Fluke 1623 GEO Earth Ground Testers

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Product Overview: Fluke 1623 Ground Testers

Fluke 1623 Ground Testers

Obsolete

  • Fluke 1623 tester
  • 2 test leads
  • Batteries
  • Users manual

 

The Fluke 1623 and 1625 are distinctive earth ground testers that can perform all four types of earth ground measurement. Specifically, the Fluke 1623 and 1625 testers are able to measure earth ground loop resistances using only clamps – called Stakeless testing. This method doesn’t require the use of earth ground stakes or the disconnection of ground rods.

Fluke 1623 Ground Testers Testing Methods

  • 3- and 4-Pole Fall of Potential – standard earth ground testing using two ground stakes
  • Selective testing – without disconnecting ground rods, a technician can measure ground resistance using a combination of stakes and a clamp.
  • Stakeless testing – innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance.

Fluke 1623 Ground Testers

  • One-button measurement concept
  • 3- and 4-pole earth ground measurement
  • 4-pole soil resistivity testing
  • Selective testing, no disconnection of ground conductor (1 clamp)
  • Stakeless testing, quick ground loop testing (2 clamps)
  • Measuring frequency 128 Hz
RA 3-pole ground resistance measurement (IEC 1557-5)
Measuring Voltage
Fluke 1623  Vm = 48 V ac
Fluke 1625  Vm = 20/48 V ac
Short circuit current
Fluke 1623  > 50 mA
Fluke 1625  250 mA ac
Measure frequency
Fluke 1623  128 Hz
Fluke 1625  94, 105, 111, 128Hz
Resolution
Fluke 1623  0.001 Ω to 10 Ω
Fluke 1625  0.001 Ω to 100 Ω
Measuring range
Fluke 1623  0.001 Ω to 19.99 kΩ
Fluke 1625  0.001 Ω to 299.9 kΩ
Intrinsic error
Fluke 1623  ± (2 % of reading + 3 digit)
Fluke 1625  ± (2 % of reading + 2 d)
Operating error
Fluke 1623  ± (5 % of reading + 3 d)
Fluke 1625  ± (5 % of reading + 5 d)
RA 4-pole ground resistance measurement (IEC 1557-5)
Measuring Voltage
Fluke 1623  Vm = 48 V ac
Fluke 1625  Vm = 20/48 V ac
Short circuit current
Fluke 1623  > 50 mA
Fluke 1625  250 mA ac
Measure frequency
Fluke 1623  128 Hz
Fluke 1625  94, 105, 111, 128Hz
Resolution
Fluke 1623  0.001 Ω to 10 Ω
Fluke 1625  0.001 Ω to 100 Ω
Measuring range
Fluke 1623  0.001 Ω to 19.99 kΩ
Fluke 1625  0.001 Ω to 299.9 kΩ
Intrinsic error
Fluke 1623  ± (2 % of reading + 3 d)
Fluke 1625  ± (2 % of reading + 2 d)
Operating error
Fluke 1623  ± (5 % of reading + 3 d)
Fluke 1625  ± (5 % of reading + 5 d)
RA 3-pole ground resistance measurement with current clamp
Measuring Voltage
Fluke 1623  Vm = 48 V ac
Fluke 1625  Vm = 20/48 V ac
Short circuit current
Fluke 1623  > 50 mA
Fluke 1625  250 mA ac
Measure frequency
Fluke 1623  128 Hz
Fluke 1625  94, 105, 111, 128Hz
Resolution
Fluke 1623  0.001 Ω to 10 Ω
Fluke 1625  0.001 Ω to 10 Ω
Measuring range
Fluke 1623  0.001 Ω to 19.99 kΩ
Fluke 1625  0.001 Ω to 29.99 kΩ
Intrinsic error
Fluke 1623  ± (7 % of reading + 3 d)
Fluke 1625  ± (7 % of reading + 2 d)
Operating error
Fluke 1623  ± (10 % of reading + 5 d)
Fluke 1625  ± (10 % of reading + 5 d)
RA 4-pole selective ground resistance measurement with current clamp
Measuring Voltage
Fluke 1623  Vm = 48 V ac
Fluke 1625  Vm = 20/48 V ac
Short circuit current
Fluke 1623  > 50 mA
Fluke 1625  250 mA ac
Measure frequency
Fluke 1623  128 Hz
Fluke 1625  94, 105, 111, 128Hz
Resolution
Fluke 1623  0.001 Ω to 10 Ω
Fluke 1625  0.001 Ω to 10 Ω
Measuring range
Fluke 1623  0.001 Ω to 19.99 kΩ
Fluke 1625  0.001 Ω to 29.99 kΩ
Intrinsic error
Fluke 1623  ± (7 % of reading + 3 d)
Fluke 1625  ± (7 % of reading + 2 d)
Operating error
Fluke 1623  ± (10 % of reading + 5 d)
Fluke 1625  ± (10 % of reading + 5 d)
Stakeless ground loop measurement
Measuring Voltage
Fluke 1623  Vm = 48 V ac
Fluke 1625  Vm = 20/48 V ac
Measure frequency
Fluke 1623  128 Hz (125 Hz on request)
Fluke 1625  94, 105, 111, 128Hz
Noise current (Iext)
Fluke 1623  Max. Iext = 10 A (ac) (RA < 20 Ω)
 Max. Iext = 2 A (ac) (RA < 20 Ω)
Fluke 1625  Max. Iext = 3 A
Resolution
Fluke 1623  0.001 Ω to 0.1 Ω
Fluke 1625  0.001 Ω to 10 Ω
Measuring range
Fluke 1623  0.001 Ω to 199.9 kΩ
Fluke 1625  0.001 Ω to 29.99 kΩ
Intrinsic error
Fluke 1623  ± (7 % of reading + 3 d)
Fluke 1625  ± (7 % of reading + 2 d)
Operating error
Fluke 1623  ± (10 % of reading + 5 d)
Fluke 1625  ± (10 % of reading + 5 d)
Environmental Specifications
Working temperature
 -10 °C to +50 °C
Operating Temperature
 0 °C to +35 °C
Nominal temperature
 +18 °C to +28 °C
Storage Temperature
Fluke 1623  -20 °C to +60 °C
Fluke 1625  -30 °C to +60 °C
Climatic class
 C1 (IEC 654-1), -5 °C to + 45 °C, 5 % to 95 % RH
Protection type
 IP56 for case, IP40 for battery door according to EN 60529
Safety Specifications
Safety Rating
 CAT II, 300 V
Mechanical & General Specifications
Display
Fluke 1623  1999 digit LCD – display with special symbols, digit height 25 mm, fluorescent backlight
Fluke 1625  2999 Digit LCD – 7 segment liquid crystal display with special symbols and backlight
Size
 133 mm x 187 mm x 250 mm
Weight
Fluke 1623 + 1625  1.1 kg (including batteries)
Warranty
 Two years
Battery Life
Fluke 1623  Typical > 3000 measurements
Fluke 1625  Typical 3000 measurements (RE+RH ≤ 1 kΩ)
 Typical 6000 measurements (RE+RH ≤ 10 kΩ)

See more Ground Resistance/Earth Testers here.