Description

The Fluke 1623-2 Basic Geo Earth Ground Tester is a robust, handheld instrument designed for professionals who need to verify earth ground resistance in outdoor and industrial environments. Its compact, water- and dust-resistant design (IP56) ensures reliable operation in tough conditions, making it ideal for field technicians and maintenance engineers who must comply with safety standards and keep electrical systems grounded.

Fluke 1623-2 Key Features

This ground resistance tester combines simplicity with capability, featuring a one-button operation concept that allows instant measurements through the TURN and START controls. The large 1999-digit LCD with fluorescent backlight ensures clear readings in any lighting condition. With internal memory storage for up to 1500 records via USB, users can easily log and transfer data for reporting and analysis. The instrument supports both 3-pole and 4-pole measurement methods according to IEC 1557-5, offering flexibility for different testing scenarios.

3-pole ground resistance measurement (IEC 1557-5)
4-pole ground resistance measurement (IEC 1557-5)
Resolution: 0.001 Ω to 10 Ω
Measuring range: 0.020 Ω to 19.99 kΩ
Accuracy: ±(2% rdg + 3 d)
Measuring principle: Current/Voltage Measurement
Measuring voltage: 48 V AC
Short-circuit current: > 50 mA
Measuring frequency: 128 Hz
Internal memory: 1500 records
Battery life: >3,000 measurements
Dimensions: 250 x 133 x 187 mm
Weight: 1.1 kg including batteries

Who Needs the Fluke 1623-2?

Electrical maintenance technicians rely on the Fluke 1623-2 to quickly and safely verify that grounding systems are functioning correctly, preventing equipment damage and ensuring personnel safety during routine inspections. Field engineers appreciate its durable, IP56-rated housing that withstands dust, moisture, and accidental drops on job sites. Buyers and procurement teams value the instrument’s internal memory and USB connectivity, which streamlines data management and reduces the need for manual recording, making it a cost-effective choice for fleet-wide grounding testing.

Facility managers and safety officers use the Fluke 1623-2 to conduct regular ground resistance testing as part of their preventive maintenance programs, ensuring compliance with local electrical codes and industry standards. The automatic range selection and error monitoring for auxiliary electrode resistance (R_S and R_H) provide consistent, reliable results without requiring extensive technical expertise, making it accessible for teams of varying skill levels.

Fluke 1623-2 Applications

The Fluke 1623-2 is essential for testing grounding systems in substations and power plants, where low resistance to earth is critical for protecting expensive equipment from fault currents. It is widely used in industrial facilities to verify the ground resistance of motor control centers, transformers, and backup power systems, ensuring operational continuity during electrical faults. Utility companies depend on this instrument for maintenance of overhead and underground distribution networks, ensuring that ground grids meet safety requirements for public protection.

Commercial buildings and data centers also benefit from the Fluke 1623-2, as proper grounding is vital for protecting sensitive electronics from power surges and lightning strikes. The instrument’s ability to perform both 3-pole and 4-pole measurements makes it versatile for various soil conditions and electrode configurations, from simple rod installations to complex grounding grids. Regular testing helps identify degraded ground connections before they lead to equipment failure or safety hazards.

Why Buy Fluke 1623-2 from mme-ae?

When you purchase the Fluke 1623-2 from mme-ae, you are investing in genuine Fluke quality supported by Mohammad Mahdi Electronics’ commitment to customer satisfaction. Our team provides product expertise to help you select the right testing instrument for your specific application, ensuring you get the most value from your investment. We offer authentic Fluke instruments with full manufacturer warranties, giving you peace of mind that your ground resistance measurements are accurate and reliable.

Ordering from mme-ae ensures fast shipping across the UAE and access to dedicated customer support should you need assistance with operation or maintenance. Our knowledgeable staff can answer technical questions and help you understand the measurement results, making the purchasing experience as smooth as the testing process itself. Trust Mohammad Mahdi Electronics for genuine Fluke products and reliable service.

Fluke 1623-2 Specifications

General Specifications
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: 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 (W x H x D)	250 x 133 x 187 mm (9.75 x 5.25 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	R_A 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 (R_S)	Max 100 kΩ
Auxiliary earth electrode resistance (R_H)	Max 100 kΩ
Additional error from R_H and R_S	R_H[kΩ]•••R_S[kΩ]/R_A[Ω]•••0.2%
Monitoring of R_S and R_H with error indicator. Automatic range selection. Measurement is not performed if the current through the current clamp is too low.
R_A 4-Pole Ground Resistance Measurement (IEC 1557-5)
Switch position	R_A 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 (R_{S +}R_ES)	Max 100 kΩ
Auxiliary earth electrode resistance (R_H)	Max 100 kΩ
Additional error from R_H and R_S	R_H[kΩ]•••R_S[kΩ]/R_A[Ω]•••0.2%
Monitoring of R_S and R_H with error indicator. Automatic range selection.
RA 3-Pole Selective Ground Resistance Measurement with Current Clamp (R_A with Clamp )
Switch position	R_A 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 (R_S)	Max 100 kΩ
Auxiliary earth electrode resistance (R_H)	Max 100 kΩ
Monitoring of R_S and R_H 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 (R_A with Clamp )
Switch position	R_A 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 (R_S)	Max 100 kΩ
Auxiliary earth electrode resistance (R_H)	Max 100 kΩ
Monitoring of R_S and R_H 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	R_A 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 (I_EXT)	Max. I_EXT = 10 A (AC) (R_A < 20 Ω)
Noise current (I_EXT)	Max. I_EXT = 2 A (AC) (R_A > 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.