Earth Ground Tester GEO Fluke 1621

The Fluke 1621 is an easy-to-use earth ground tester. For ground resistance testing, the 1621 is the first line of defense in detecting reliable ground connections. The unit features basic ground testing methods including 3-pole Fall-of-Potential as well as 2-pole ground resistance tests. Its convenient size, rugged holster, and large, clear LCD display make it an ideal field earth ground tester, for most electrical grounding work environments. With a simple user interface and intuitive functionality, the Fluke 1621 is a handy grounding tool for electrical contractors, utility test engineers, and earth ground specialists.

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    • Easily capture values with single-button operation
    • 3-pole Fall-of-Potential earth testing for basic measurements
    • 2-pole resistance measurements for added versatility
    • Ensure accurate measurements with automatic ‘noise’ voltage detection
    • Hazardous voltage warning offers increased user protection
    • Clearly read and record data with a large, backlit display
    • Rugged holster and design for tough work environments
    • Portable size allows for easy transportation
    • Instantly be alerted to measurements outside of your set limit, when you use the adjustable limit setting
    • 600 V Cat II
    General Specifications
    Measuring functions 3-pole earth ground resistance, 2-pole ac resistance of a conductor, Interference voltage
    Intrinsic error Refers to the reference temperature range and is guaranteed for one year
    Measuring rate 2 measurements/second
    Battery1 One 9 volt alkaline (LR61)
    Battery condition LO-BAT is displayed if voltage drops below 6.5 V
    Voltages Between jacks H/C2 and E/C1 250 Veff maximum (effective voltage)
    Between jacks S/P2 and E/C1 250 Veff maximum
    Climatic class VDE/VDI 3540 RZ (conforming to KWG as per DIN 40040, 4/87)
    Temperature performance2 Working -10°C to +50°C (+14°F to +122°F)
    Operating 0°C to +35°C (+32°F to +95°F)
    Storage -20°C to +60°C (+68°F to +140°F)
    Reference +23°C ±2°C (+73°F ±4°F)
    Temperature coefficient ±0.1% of range per degree Kelvin
    Safety IEC/EN 61010-1, 600 V CAT II, pollution degree 2
    Dimensions 113 x 54 x 216 mm (4.5 x 2.1 x 8.5 in), including holster
    Weight 850 g (1.9 lb), including standard accessories, volume approximately 600 cm3
    Electrical Specifications
    Maximum deviations E1Influence factor Position
    E1Deviation influence 0%
    E2Influence factor Supply voltage
    E2Deviation influence 0%
    E3Influence factor Temperature E3
    E3Deviation influence 2.3%
    E4Influence factor Serial interference voltage (20 V)
    E4Deviation influence 0.6%
    E5Influence factor Probe- and auxiliary probe resistance
    E5Deviation influence 10%
    Test voltage 3.7 kV
    Protection type IP 40; IEC/EN 60529
    Electromagnetic compatibility Emission IEC/EN 61326 Class B
    Immunity IEC/EN 61326 Annex C
    RE Resistance measurement Measuring method Current-voltage measurement with improved cross-talk attenuation, no compensation of measuring lead resistance, with probe (3-pole) or without probe (2-pole), as per IEC/EN 61557–5
    Open circuit voltage 23 to 24 V AC
    Short circuit current > 50 mA AC
    Measuring frequency 128 Hz
    Maximum permissible overload 250 Veff
    Measuring time 8 seconds (average from when START is pressed)
    Limit input Tester retains set value even if instrument is turned off (assuming battery power supply is sufficient)
    Automatic changeover of resolution RH < 7 kΩ
    Resolution 0.01 Ω
    RH < 50 kΩ
    Resolution 0.1 Ω
    RH > 50 kΩ
    Resolution 1 Ω
    Interference voltage display DC + AC Vmax 30 Veff
    Common mode rejection > 80 dB at 50 Hz and 60 Hz
    Ri 680 kΩ
    Measuring uncertainty < 10% for pure AC and DC signals
    Measuring Range
    0.15 Ω to 20 Ω Resolution 0.01 Ω
    Display range 0 to 19.99 Ω
    200 Ω Resolution 0.1 Ω
    Display range 20 to 199.9 Ω
    2 kΩ Resolution 1 Ω
    Display range 200 to 1999 Ω
    Intrinsic Uncertainty ±(6% of measured value + 5D)
    Operating uncertainty IEC 615573 ±(18% of measured value + 5D)

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