Fluke 1623-2 Earth Ground Tester

Fluke 1623-2 Earth Ground Testers provide quick, accurate impedance measurements through several test methods: 3 and 4 pole Fall of Potential testing, selective testing, stake less testing and 2 pole testing.

Overview

Work safer, smarter and faster with Fluke 1623 Earth Ground tester.

Fluke earth ground testers provide quick, accurate impedance measurements through several test methods: 3 and 4 pole Fall of Potential testing, selective testing, stake less testing and 2 pole testing.

Fluke 1623 is a versatile earth ground tester that can easily perform all four types of earth ground tests.

Fluke 1623-2 Earth Ground Tester Kit offers fast, accurate earth ground tests using all 4 test methods. World class accessories speed set up and test time.

Fluke 1623 Kit Basic Geo Earth Ground Testers Kit is a distinctive earth ground tester that can perform all four types of earth ground measurements.

Specifically, Stake less testing that is an innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance.

The tester features a one-button measurement concept, 4-pole soil resistivity testing, selective testing, and no disconnection of the ground conductor.

Features

Stakeless Testing

The Fluke 1623-2 earth ground tester is able to measure earth ground loop resistances using only clamps.

With this test method, two clamps are placed around the earth ground rod and each are connected to the tester. No earth ground stakes are used at all.

A known, fixed voltage is induced by one clamp and the current is measured using the second clamp. Then the tester automatically determines the resistance of the earth ground rod.

This test method only works if a bonded earth ground system exists for the building or structure under test, but most are.

If there is only one path to ground, like at many residential applications, the Stakeless method will not provide an acceptable value and the Fall-of-Potential test method must be used.

With Stakeless testing, the earth ground rod does not need to be disconnected – leaving the bonded earth ground system intact during test.

Gone are the days of spending time placing and connecting stakes for each earth ground rod on your system – a major time saver.

You can also perform earth ground tests in places you’ve not considered before: inside buildings, power pylons, or anywhere you don’t have access to soil.

The Most Complete Tester

The Fluke 1623-2 is a unique earth ground tester that can perform all four types of earth ground measurement.

  • 3- and 4-Pole Fall-of-Potential (using stakes)
  • 4-Pole Soil Resistivity Testing (using stakes)
  • Selective Testing (using 1 clamp and stakes)
  • Stakeless Testing (using 2 clamps only)

Specifications

Detailed Specifications
General
Display: 1999 digit LCD Display with special symbols, digit height 25 mm, fluorescent backlight
User interface Instant measurement through TURN and START one button concept. The only operating elements are rotary switch and START button
Robust, water and dust resistant Instrument is designed for tough environmental conditions (rubber protective cover, IP56)
Memory Internal memory storage up to 1500 records accessible via USB port
Temperature Range
Operating temperature -10 °C to 50 °C (14 °F to 122 °F)
Storage temperature -30 °C to 60 °C (-22 °F to 140 °F)
Temperature coefficient ± 0.1 % of reading/°C <18 °C >28 °C
Intrinsic error Refers to the reference temperature range and is guaranteed for 1 year
Operating error Refers to the operating temperature range and is guaranteed for 1 year
Climatic class C1 (IEC 654-1), -5 °C to +45 °C (23° to +115° F), 5 % to 95 % RH
Protective type IP56 for case, IP40 for battery door according to EN60529
Safety Protection by double and/or reinforced insulation. max. 50 V to earth. IEC61010-1: 300V CAT II, Pollution degree 2
EMC (emission immunity) IEC61326-1: Portable
Quality system Developed, designed and manufactured according to DIN ISO 9001
External voltage V ext, max = 24 V (dc, ac < 400 Hz), measurement inhibited for higher values
V ext rejection > 120 dB (162⁄3, 50, 60, 400 Hz)
Measuring time Typical 6 seconds
Max. overload 250 V rms (pertains to misuse)
Auxiliary power 6 x 1.5 V Alkaline (type AA LR6)
Battery life span Typical > 3,000 measurements
Dimensions (WxHxD) 250 mm x 133 mm x 187 mm (9.75 in x 5.25 in x 7.35 in)
Weight 1.1 kg (2.43 lb) including batteries
7.6 kg (16.8 lb) incl. accessories and batteries in carrying case
RA 3-Pole Ground Resistance Measurement (IEC 1557-5)
Switch position RA 3-pole
Resolution 0.001 Ω to 10 Ω
Measuring range 0.020 Ω to 19.99 kΩ
Accuracy ± (2 % rdg + 3 d)
Operating error ± (5 % rdg + 3 d)
Measuring Principle: Current/Voltage Measurement
Measuring voltage Vm = 48 V ac
Short-circuit current > 50 mA
Measure frequency 128 Hz
Probe resistance (RS) Max 100 kΩ
Auxiliary earth electrode resistance (RH) Max 100 kΩ
Additional error from RH and RS RH[kΩ]RS[kΩ]/RA[Ω]0.2 %
Monitoring of RS and RH with error indicator.
Automatic range selection.
Measurement is not performed if the current through the current clamp is too low.
RA 4-Pole Ground Resistance Measurement (IEC 1557-5)
Switch position RA 4-pole
Resolution 0.001 Ω to 10 Ω
Measuring range 0.020 Ω to 19.99 kΩ
Accuracy ± (2 % rdg + 3 d)
Operating error ± (5 % rdg + 3 d)
Measuring Principle: Current/Voltage Measurement
Measuring voltage Vm = 48 V ac
Short-circuit current > 50 mA
Measure frequency 128 Hz
Probe resistance (RS + RES) Max 100 kΩ
Auxiliary earth electrode resistance (RH) Max 100 kΩ
Additional error from RH and RS RH[kΩ]RS[kΩ]/RA[Ω]0.2 %
Monitoring of RS and RH with error indicator.
Automatic range selection.
RA 3-Pole Selective Ground Resistance Measurement with Current Clamp (RA with Clamp )
Switch position RA 3-pole with clamp
Resolution 0.001 Ω to 10 Ω
Measuring range 0.020 Ω to 19.99 kΩ
Accuracy ± (7 % rdg + 3 d)
Operating error ± (10 % rdg + 5 d)
Measuring Principle: Current/Voltage Measurement (with External Current Clamp)
Measuring voltage Vm = 48 V ac
Short-circuit current > 50 mA
Measure frequency 128 Hz
Probe resistance (RS) Max 100 kΩ
Auxiliary earth electrode resistance (RH) Max 100 kΩ
Monitoring of RS and RH with error indicator.
Automatic range selection.
Measurement is not performed if the current through the current clamp is too low.
RA 4-Pole Selective Ground Resistance Measurement with Current Clamp (RA with Clamp )
Switch position RA 4-pole with clamp
Resolution 0.001 Ω to 10 Ω
Measuring range 0.020 Ω to 19.99 kΩ
Accuracy ± (7 % rdg + 3 d)
Operating error ± (10 % rdg + 5 d)
Measuring Principle: Current/Voltage Measurement (with External Current Clamp)
Measuring voltage Vm = 48 V ac
Short-circuit current > 50 mA
Measure frequency 128 Hz
Probe resistance (RS) Max 100 kΩ
Auxiliary earth electrode resistance (RH) Max 100 kΩ
Monitoring of RS and RH with error indicator.
Automatic range selection.
Measurement is not performed if the current through the current clamp is too low.
Stakeless Ground Loop Measurement (2 Clamps )
Switch position RA 4-pole 2 clamps
Resolution 0.001 Ω to 10 Ω
Measuring range 0.020 Ω to 19.99 kΩ
Accuracy ± (7 % rdg + 3 d)
Operating error ± (10 % rdg + 5 d)
Measuring Principle: Stakeless Measurement of Resistance in Closed Loops Using Two Current Transformers
Measuring voltage Vm = 48 V ac
Measure frequency 128 Hz
Noise current (IEXT) Max. IEXT = 10 A (ac) (RA < 20 Ω)
Max. IEXT = 2 A (ac) (RA > 20 Ω)
Automatic range selection.
The information regarding stakeless ground loop measurements is only valid when used in conjunction with the recommended current clamps at the minimum distance specified.

Includes

What’s included with the Fluke 1623-2

  • Fluke 1623-2 GEO Earth Ground Tester

 

Resources

Fluke 1623-2 Earth Ground Tester – Catalog    Download

Accessories

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Fluke EI-162BN 320 mm Diameter Split Core Transformer EI-162BN

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Fluke El-162X Clip-On CT with Shielded Cable EI-162X

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Fluke EI-162AC Clip on Current Transformer EI-162AC

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