Fluke 1623-2 Basic GEO Earth Ground Tester

The Fluke 1623-2 Earth Ground Tester is a compact, field-rugged instrument that performs all four types of earth ground measurement. Specifically, the Tester is able to measure earth ground loop resistances using only clamps - called Stakeless testing. This method doesn’t require the use of earth ground stakes or the disconnection of ground rods. The 1623-2 is equipped with a 3-pole as well as a 4-pole resistance measurement that renders measurements of resistances of earthing systems and measurements of the soil resistivity of geological strata. The Tester also makes measurements with an external current transformer, with which a measurement of single resistance branches in interlinked networks (lightning protection and high voltage pylons with cabling) can be performed without separating parts of the system. FEATURES: One-button measurement concept. 3-pole and 4-pole earth ground measurement. 4-pole soil resistivity testing. Selective testing, no disconnection of ground conductor (1 clamp). Stakeless testing, quick ground loop testing (2 clamps). Measuring frequency 128 Hz. IP56 rated for outdoor use. Rugged carrying case. USB data storage and transfer. Fluke 1623-2 GEO 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: 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 (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 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]

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•RS[kΩ]/RA[Ω]

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•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]

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•RS[kΩ]/RA[Ω]

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•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.

For more information on Fluke 1623-2 Basic GEO Earth Ground Tester talk to Cuthbertson Laird Group