Fluke 1621 Earth Ground Tester

Catalog: 2840276  |  UPC: 095969401210  |  Model: Fluke 1621

Fluke 1621 Earth Ground Tester

Compare

Fluke 1621 GEO Earth Ground Tester with 3-Pole Fall-of-Potential and 2-Pole Resistivity

  • 3-pole Fall-of-Potential earth testing for basic measurements
  • 2-pole resistance measurements for added versatility
  • Automatic noise voltage detection for accurate results
  • Hazardous voltage warning for increased user protection
  • Large backlit LCD display for clear data reading
  • Adjustable limit settings with instant alerts when exceeded
  • Rugged holster for tough environments
  • Compact and portable design
  • 600 V CAT II safety rating

Description

The Fluke 1621 Earth Ground Tester is an easy-to-use grounding tool designed for reliable earth resistance testing. It supports both 3-pole Fall-of-Potential and 2-pole ground resistance tests, making it a versatile first-line defense for detecting ground connections. With single-button operation, a rugged holster, and a large backlit display, it is ideal for field service electricians, contractors, utilities, and earth ground specialists.

Applications: Electrical contractors, utility test engineers, substation maintenance, industrial electricians, and lightning protection specialists.

Manufacturer Specifications

General Specifications
Measuring Functions 3-pole earth ground resistance, 2-pole AC resistance of a conductor, Interference voltage
Intrinsic Error Guaranteed for one year within reference temperature range
Measuring Rate 2 measurements/second
Battery One 9 V alkaline (LR61)
Battery Indicator LO-BAT displayed if voltage drops below 6.5 V
Voltages Between H/C2 and E/C1: 250 Veff max; Between S/P2 and E/C1: 250 Veff max
Standard Infrared Lens Type Field of view: 17° × 17°, IFOV 2.50 mRad, Minimum focus: 15 cm (6 in)
Climatic Class VDE/VDI 3540 RZ (DIN 40040, 4/87)
Temperature Performance Working: -10 °C to +50 °C; Operating: 0 °C to +35 °C; Storage: -20 °C to +60 °C; Reference: +23 °C ± 2 °C
Temperature Coefficient ± 0.1 % of range per K
Safety IEC/EN 61010-1, 600 V CAT II, Pollution Degree 2
Dimensions 113 × 54 × 216 mm (4.5 × 2.1 × 8.5 in) including holster
Weight 850 g (1.9 lbs) including standard accessories
Electrical Specifications
Max Deviations E1 Position: 0% | E2 Supply Voltage: 0% | E3 Temperature: 2.3% | E4 Interference Voltage (20 V): 0.6% | E5 Probe Resistance: 10%
Test Voltage 3.7 kV
Protection IP40 (IEC/EN 60529)
Electromagnetic Compatibility IEC/EN 61326 Class B (Emission), IEC/EN 61326 Annex C (Immunity)
RE Resistance Measurement
Method Current-voltage measurement with improved cross-talk attenuation, per IEC/EN 61557-5
Open Circuit Voltage 23–24 V AC
Short Circuit Current > 50 mA AC
Measuring Frequency 128 Hz
Max Overload 250 Veff
Measuring Time 8 seconds (average after START)
Limit Input Retains set value even if power is off (with sufficient battery)
Resolution Changeover RH < 7 kΩ → 0.01 Ω; RH < 50 kΩ → 0.1 Ω; RH > 50 kΩ → 1 Ω
Interference Voltage Display Vmax 30 Veff
Common Mode Rejection > 80 dB at 50/60 Hz
Ri 680 kΩ
Measuring Uncertainty < 10 % for pure AC/DC signals
Measuring Range
0.15 Ω to 20 Ω Resolution: 0.01 Ω | Display: 0–19.99 Ω
200 Ω Resolution: 0.1 Ω | Display: 20–199.9 Ω
2 kΩ Resolution: 1 Ω | Display: 200–1999 Ω
Intrinsic Uncertainty ± (6% of measured value + 5D)
Operating Uncertainty ± (18% of measured value + 5D) per IEC 61557

Tech Specs

Ground Testers Template
Type 3-Pole
Display Digital
Ground Resistance Range 2 kΩ
Accuracy ± (6% + 5D intrinsic), ± (18% + 5D operating)
Measuring Current 50 mA
Measuring Voltage 24 V
Measuring Frequency 128 Hz
Soil Resistivity No
Stakeless Capability No
Power Supply 9 V Battery
CAT Rating CAT II
CAT Voltage 600 V
Auto Ranging Yes

Test Equipment General Attributes

Unique Features 3-pole and 2-pole methods, auto noise voltage detection, adjustable limit alerts, single-button operation, portable design
Warranty 2 Years
IP Rating IP40
Product Weight 1.9 lbs
Product Height 8.5 in
Product Length 4.5 in
Product Width 2.1 in
Shipping Weight 6 lbs
Shipping Dimensions 9.4 × 7.6 × 2.8 in
Data Logging No
Battery Type 9 V
Power Supply Battery Powered
Country of Origin Romania
UPC 095969401210

Fluke 1621 Earth Ground Tester

Catalog: 2840276  |  UPC: 095969401210  |  Model: Fluke 1621

Fluke 1621 Earth Ground Tester

Compare

Fluke 1621 GEO Earth Ground Tester with 3-Pole Fall-of-Potential and 2-Pole Resistivity

  • 3-pole Fall-of-Potential earth testing for basic measurements
  • 2-pole resistance measurements for added versatility
  • Automatic noise voltage detection for accurate results
  • Hazardous voltage warning for increased user protection
  • Large backlit LCD display for clear data reading
  • Adjustable limit settings with instant alerts when exceeded
  • Rugged holster for tough environments
  • Compact and portable design
  • 600 V CAT II safety rating

Description

The Fluke 1621 Earth Ground Tester is an easy-to-use grounding tool designed for reliable earth resistance testing. It supports both 3-pole Fall-of-Potential and 2-pole ground resistance tests, making it a versatile first-line defense for detecting ground connections. With single-button operation, a rugged holster, and a large backlit display, it is ideal for field service electricians, contractors, utilities, and earth ground specialists.

Applications: Electrical contractors, utility test engineers, substation maintenance, industrial electricians, and lightning protection specialists.

Manufacturer Specifications

General Specifications
Measuring Functions 3-pole earth ground resistance, 2-pole AC resistance of a conductor, Interference voltage
Intrinsic Error Guaranteed for one year within reference temperature range
Measuring Rate 2 measurements/second
Battery One 9 V alkaline (LR61)
Battery Indicator LO-BAT displayed if voltage drops below 6.5 V
Voltages Between H/C2 and E/C1: 250 Veff max; Between S/P2 and E/C1: 250 Veff max
Standard Infrared Lens Type Field of view: 17° × 17°, IFOV 2.50 mRad, Minimum focus: 15 cm (6 in)
Climatic Class VDE/VDI 3540 RZ (DIN 40040, 4/87)
Temperature Performance Working: -10 °C to +50 °C; Operating: 0 °C to +35 °C; Storage: -20 °C to +60 °C; Reference: +23 °C ± 2 °C
Temperature Coefficient ± 0.1 % of range per K
Safety IEC/EN 61010-1, 600 V CAT II, Pollution Degree 2
Dimensions 113 × 54 × 216 mm (4.5 × 2.1 × 8.5 in) including holster
Weight 850 g (1.9 lbs) including standard accessories
Electrical Specifications
Max Deviations E1 Position: 0% | E2 Supply Voltage: 0% | E3 Temperature: 2.3% | E4 Interference Voltage (20 V): 0.6% | E5 Probe Resistance: 10%
Test Voltage 3.7 kV
Protection IP40 (IEC/EN 60529)
Electromagnetic Compatibility IEC/EN 61326 Class B (Emission), IEC/EN 61326 Annex C (Immunity)
RE Resistance Measurement
Method Current-voltage measurement with improved cross-talk attenuation, per IEC/EN 61557-5
Open Circuit Voltage 23–24 V AC
Short Circuit Current > 50 mA AC
Measuring Frequency 128 Hz
Max Overload 250 Veff
Measuring Time 8 seconds (average after START)
Limit Input Retains set value even if power is off (with sufficient battery)
Resolution Changeover RH < 7 kΩ → 0.01 Ω; RH < 50 kΩ → 0.1 Ω; RH > 50 kΩ → 1 Ω
Interference Voltage Display Vmax 30 Veff
Common Mode Rejection > 80 dB at 50/60 Hz
Ri 680 kΩ
Measuring Uncertainty < 10 % for pure AC/DC signals
Measuring Range
0.15 Ω to 20 Ω Resolution: 0.01 Ω | Display: 0–19.99 Ω
200 Ω Resolution: 0.1 Ω | Display: 20–199.9 Ω
2 kΩ Resolution: 1 Ω | Display: 200–1999 Ω
Intrinsic Uncertainty ± (6% of measured value + 5D)
Operating Uncertainty ± (18% of measured value + 5D) per IEC 61557

Tech Specs

Ground Testers Template
Type 3-Pole
Display Digital
Ground Resistance Range 2 kΩ
Accuracy ± (6% + 5D intrinsic), ± (18% + 5D operating)
Measuring Current 50 mA
Measuring Voltage 24 V
Measuring Frequency 128 Hz
Soil Resistivity No
Stakeless Capability No
Power Supply 9 V Battery
CAT Rating CAT II
CAT Voltage 600 V
Auto Ranging Yes

Test Equipment General Attributes

Unique Features 3-pole and 2-pole methods, auto noise voltage detection, adjustable limit alerts, single-button operation, portable design
Warranty 2 Years
IP Rating IP40
Product Weight 1.9 lbs
Product Height 8.5 in
Product Length 4.5 in
Product Width 2.1 in
Shipping Weight 6 lbs
Shipping Dimensions 9.4 × 7.6 × 2.8 in
Data Logging No
Battery Type 9 V
Power Supply Battery Powered
Country of Origin Romania
UPC 095969401210
Guardian Safety Supply by Guardian Safety Supply

Fluke 1621 Earth Ground Tester

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