Fluke 1621 Earth Ground Testers

Easy-to-use earth ground tester for 2-point and 3-point ground resistance testing. Available as a stand-alone unit or complete testing kit.

Discontinued!

This product has been discontinued and is no longer available.
This is the direct replacement:

Fluke 1623-2 GEO Earth Ground Tester

Model: 1623-2

The earth ground testers offer data storage and download capabilities via USB port. They are able to measure earth ground loop resistances using only clamps. The tester automatically determines the resistance of the earth ground rod.

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Recommended Accessories

Fluke ES-162P3 3-Pole Stake Kit

ES-162P3

Fluke CXT280

CXT280

Fluke 1621 Offers

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

Fluke 1621 Specifications

E₁ Influence Factor	Position
Automatic Changeover of Resolution
R_H	< 7 kΩ
R_H	< 50 kΩ
Interference Voltage Display AC/DC
Measuring Uncertainty	< 10% for pure AC and DC signals
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
R_E 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 24V 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
Resolution	0.01 Ω
Resolution	0.1 Ω
R_H	> 50 kΩ
Resolution	1 Ω
Interference Voltage Display AC/DC
Vmax	30 Veff
Common Mode Rejection	> 80 dB at 50 Hz and 60 Hz
Ri	680 kΩ
Measuring Specifications
Range	0.15 Ω to 20 Ω
Resolution	0.01 Ω
Display range	0 to 19.99 Ω
Range	200 Ω
Resolution	0.1 Ω
Display range	20 to 199.9 Ω
Range	2 kΩ
Resolution	1 Ω
Display range	200 to 1999 Ω
Intrinsic Uncertainty	±(6% of measured value + 5D)
Operating uncertainty IEC 61557	±(18% of measured value + 5D)
General Specifications
Measuring Functions	3-pole earth ground resistance, 2-pole ac resistance of a conductor, Interference voltage
Intrinsic Eerror	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 to 50°C (14 to 122°F) Operating: 0 to 35°C (32 to 95°F) Storage: -20 to 60°C (68 to 140°F) Reference: 23 ± 2°C (73 ± 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

What's included with the Fluke 1621

Fluke 1621 Earth Ground Testers

Click on a category to view a selection of compatible accessories with the Fluke 1621 Earth Ground Testers.

Carrying Cases

Fluke TB25 Tool Bucket Organizer Bag, 5.2 gal TB25

Durable and rugged, this tool bucket organizer bag has a 5.2-gallon capacity that can be relied on to protect and safely carry a variety of test tools and accessories. With its waterproof hard bottom shell, this versatile organizer has a total of 28 pockets that can fit hand tools, DMMs, clamp meters, test probes, and more.

Accessory Kits

Fluke ES-162P3 3-Pole Stake Kit ES-162P3

Cases and Holsters

Fluke CXT280 CXT280

Rugged Pelican Hard Case for the Fluke 280 Series.

Ask a question about Fluke 1621 Earth Ground Testers

Customer Reviews for the Fluke 1621

Description ➕➖

Fluke 1621 Offers

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

Specifications ➕➖

Fluke 1621 Specifications

E₁ Influence Factor	Position
Automatic Changeover of Resolution
R_H	< 7 kΩ
R_H	< 50 kΩ
Interference Voltage Display AC/DC
Measuring Uncertainty	< 10% for pure AC and DC signals
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
R_E 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 24V 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
Resolution	0.01 Ω
Resolution	0.1 Ω
R_H	> 50 kΩ
Resolution	1 Ω
Interference Voltage Display AC/DC
Vmax	30 Veff
Common Mode Rejection	> 80 dB at 50 Hz and 60 Hz
Ri	680 kΩ
Measuring Specifications
Range	0.15 Ω to 20 Ω
Resolution	0.01 Ω
Display range	0 to 19.99 Ω
Range	200 Ω
Resolution	0.1 Ω
Display range	20 to 199.9 Ω
Range	2 kΩ
Resolution	1 Ω
Display range	200 to 1999 Ω
Intrinsic Uncertainty	±(6% of measured value + 5D)
Operating uncertainty IEC 61557	±(18% of measured value + 5D)
General Specifications
Measuring Functions	3-pole earth ground resistance, 2-pole ac resistance of a conductor, Interference voltage
Intrinsic Eerror	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 to 50°C (14 to 122°F) Operating: 0 to 35°C (32 to 95°F) Storage: -20 to 60°C (68 to 140°F) Reference: 23 ± 2°C (73 ± 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