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Fluke 1625 Ground Tester

Fluke 1625 GEO Earth Ground Testers

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Product Overview: Fluke 1625 Ground Tester

Fluke 1625 Ground Tester Discontinued 

See  fluke 1625-2

  • Fluke 1625 tester
  • 2 test leads
  • Batteries
  • Users manualThe 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 1625 Ground Tester 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.

    The Fluke 1625 offers these advanced features

    • Automatic Frequency Control (AFC) – identifies existing interference and chooses a measurement frequency to minimize its effect, providing a more accurate earth ground value.
    • R* measurement – calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault-to-earth ground would see.
    • Adjustable limits – for quick test result verification.

    Fluke 1625 Ground Tester

    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.