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Fluke 1621 Earth Ground Tester

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Fluke 1621 Earth Ground Tester FLUKE Earth Testers Fluke 1621 Earth Ground Tester FLUKE Earth Testers Fluke 1621 Earth Ground Tester FLUKE Earth Testers


Earth Ground Tester for resistance measurement

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.

 

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
Battery[1]
   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 performance[2]
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 mm x 54 mm x 216 mm (4.5 in x 2.1 in x 8.5 in), including holster
Weight
   850 g (1.9 lb), including standard accessories, volume approximately 600 cm3
Note:
   [1]If the tester is not going to be used, or is being stored for a long period, remove the battery and store separately from the tester to avoid damage from battery leakage.
Note:
   [2]The four temperature ranges for the tester exists to satisfy European Standards requirements; the instrument can be used over the full working temperature range by using the temperature coefficient to calculate accuracy at the ambient temperature of use.

 

Electrical specifications
Maximum deviations:
E1 Influence factor  Position
E1 Deviation influence  0 %
E2 Influence factor  Supply voltage
E2 Deviation influence  0 %
E3 Influence factor  Temperature E3
E3 Deviation influence  2.3 %
E4 Influence factor  Serial interference voltage (20 V)
E4 Deviation influence  0.6 %
E5 Influence factor  Probe- and auxiliary probe resistance
E5 Deviation 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 61557[1]
   ± (18 % of measured value + 5D)
Notes:
   [1] Covers all deviations caused by influence quantities E1-E5.
If the deviation E4 caused by high probe or auxiliary probe resistance is higher than specified flashes.
Measured values are outside of the specified operating uncertainty.

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