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FLUKE 1625-2

FLUKE 1625-2
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FLUKE 1625-2
  • Stock: Pre-Order
  • Model: GEO Earth Ground Tester

Product overview: Fluke 1625-2 GEO Earth Ground Tester

Fluke 1625-2 Earth Ground Tester offers fast, accurate earth ground testing using all four test methods.

The Fluke 1625-2 earth ground tester measures earth ground loop resistances using only clamps, only stakes, or one clamp and stakes. With the stakeless test method, the Fluke 1625-2 is able to measure earth ground loop resistances for multi-grounded systems using only current clamps. This technique eliminates the dangerous, and time consuming job of disconnecting parallel grounds, and finding suitable locations for auxiliary ground stakes. This allows you to perform earth ground tests in places you’ve not considered before, such as inside buildings, on power pylons, or anywhere you don’t have access to soil.

Keep your options open

If a bonded earth ground system does not exist for the building or structure under test, and there is only one path to ground, you can use the 1625-2 to perform the fall-of-potential test method with stakes.

The 1625-2 offers other advanced features including:

  • Automatic Frequency Control to identify existing interference and choose a measurement frequency to minimize its effect, thus providing a more accurate earth ground value.
  • R* measurement that calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault-to earth ground would see.

The 1625-2 is also very easy to use. World class accessories speed set up and test time. And the tester tells you which stakes or clamps to connect for each test. The large rotary switch and buttons are easy to operate even with a gloved hand. And you can store up to 1500 records and access them easily via the USB port.

Other useful capabilities:

  • Provides R* measurement that calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault-to earth ground would see
  • Includes USB port for data storage and transfer
  • Features IP56 rating for outdoor use
  • Offers adjustable limits for quicker testing
  • Comes with a rugged carrying case


    Specifications: Fluke 1625-2 GEO Earth Ground Tester

    General Specifications
    MemoryInternal memory storage up to 1500 records accessible via USB port
    Measuring functionInterference voltage and frequency, earthing resistance 3- and 4-pole with/without clip-on current transformer, resistance 2-pole with AC, 2- and 4-pole with DC
    Display4 digit (2999 Digit) - 7 segment liquid crystal display, with improved visibility
    OperationCentral rotary switch and function keys
    Temperature Range
    Operating temperature-10°C to 50°C (14°F to 122°F)
    Storage temperature-30°C to 60°C (-22°F to 140°F)
    Temperature coefficient±0.1% of reading/°C < 18°C > 28°C
    Type of protectionIP56 for case, IP40 for battery door according to EN60529
    Max voltageWarning – socket "clamp" to socket E, ES, S or H
    Urms = 0 V
    Sockets E, ES, S or H to each other in any combination, max. Urms = 250 V (pertains to misuse)
    SafetyProtection by double and/or reinforced insulation. Max. 50 V to earth per IEC61010-1. Pollution degree 2
    Quality standardDeveloped, designed and manufactured to comply with DIN ISO 9001
    External field influenceComplies with DIN 43780 (8/76)
    Auxiliary power6 x 1.5 V alkaline (IEC LR6 or type AA)
    Battery life spanWith IEC LR6/type AA: typ. 3,000 measurements (RE+RH ≤ 1 kΩ)
    With IEC LR6/type AA: typ. 6,000 measurements (RE + RH > 10 kΩ)
    Dimensions (W x H x D)250 x 133 x 187 mm (9.75 x 5.25 x 7.35 in)
    Weight≤ 1.1 kg (2.43 lb) without accessories 7.6 kg (16.8 lb) incl. accessories and batteries in carrying case
    Case materialPolyester
    Measurement of Interference Voltage DC + AC (UST)
    Measuring limits of error: methodFull wave rectification
    Measuring range1 V to 50 V
    Display range0.0 V to 50 V
    Resolution0.1 V
    Frequency rangeDC/AC 45 Hz to 400 Hz sine
    Accuracy±(5% of rdg + 5 digit)
    Measuring sequenceApprox. 4 measurements/s
    Internal resistanceApprox. 1.5 MΩ
    Max. overloadUrms = 250 V
    Measurement of Interference Frequency (F)
    Measuring limits of error: methodMeasurement of oscillation period of the interference voltage
    Measuring range6.0 Hz to 400 Hz
    Display range16.0 Hz to 299.9 Hz to 999 Hz
    Resolution0.1 Hz to 1 Hz
    Range1 V to 50 V
    Accuracy±(1% of rdg + 2 digit)
    Earthing Resistance (RE)
    Measuring methodCurrent and voltage measurement with probe as IEC61557-5
    Open circuit voltage20/48 V, AC
    Short circuit current250 mA AC
    Measuring frequency94, 105, 111, 128 Hz selected manually or automatic. (AFC) 55 Hz in function R1
    Noise rejection120 dB (16 2/3 , 50 , 60, 400 Hz)
    Max. overloadUrms = 250 V