Fluke 1621 GEO Earth Ground Tester

Product By Flir Logo
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 functions3-pole earth ground resistance, 2-pole ac resistance of a conductor, Interference voltage
Intrinsic errorRefers to the reference temperature range and is guaranteed for one year
Measuring rate2 measurements/second
Battery1One 9 volt alkaline (LR61)
Battery conditionLO-BAT is displayed if voltage drops below 6.5 V
VoltagesBetween jacks H/C2 and E/C1250 Veff maximum (effective voltage)
Between jacks S/P2 and E/C1250 Veff maximum
Climatic classVDE/VDI 3540 RZ (conforming to KWG as per DIN 40040, 4/87)
Temperature performance2Working-10°C to +50°C (+14°F to +122°F)
Operating0°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
SafetyIEC/EN 61010-1, 600 V CAT II, pollution degree 2
Dimensions113 x 54 x 216 mm (4.5 x 2.1 x 8.5 in), including holster
Weight850 g (1.9 lb), including standard accessories, volume approximately 600 cm3
Electrical Specifications
Maximum deviationsE1 Influence factorPosition
E1 Deviation influence0%
E2 Influence factorSupply voltage
E2 Deviation influence0%
E3 Influence factorTemperature E3
E3 Deviation influence2.3%
E4 Influence factorSerial interference voltage (20 V)
E4 Deviation influence0.6%
E5 Influence factorProbe- and auxiliary probe resistance
E5 Deviation influence10%
Test voltage3.7 kV
Protection typeIP 40; IEC/EN 60529
Electromagnetic compatibilityEmissionIEC/EN 61326 Class B
ImmunityIEC/EN 61326 Annex C
RE Resistance measurementMeasuring methodCurrent-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 voltage23 to 24 V AC
Short circuit current> 50 mA AC
Measuring frequency128 Hz
Maximum permissible overload250 Veff
Measuring time8 seconds (average from when START is pressed)
Limit inputTester retains set value even if instrument is turned off (assuming battery power supply is sufficient)
Automatic changeover of resolutionRH< 7 k?
Resolution0.01 ?
RH< 50 k?
Resolution0.1 ?
RH> 50 k?
Resolution1 ?
Interference voltage display DC + ACVmax30 Veff
Common mode rejection> 80 dB at 50 Hz and 60 Hz
Ri680 k?
Measuring uncertainty< 10% for pure AC and DC signals
Measuring Range
0.15 ? to 20 ?Resolution0.01 ?
Display range0 to 19.99 ?
200 ?Resolution0.1 ?
Display range20 to 199.9 ?
2 k?Resolution1 ?
Display range200 to 1999 ?
Intrinsic Uncertainty±(6% of measured value + 5D)
Operating uncertainty IEC 615573±(18% of measured value + 5D)