Fluke 1625 KIT
GEO Earth Ground Tester Kit

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RA 3-pole ground resistance measurement (IEC 1557-5)
Measuring Voltage	Fluke 1623 Vm = 48 V ac Fluke 1625 Vm = 20/48 V ac
Short circuit current	Fluke 1623 > 50 mA Fluke 1625 250 mA ac
Measure frequency	Fluke 1623 128 Hz Fluke 1625 94, 105, 111, 128Hz
Resolution	Fluke 1623 0.001 Ω to 10 Ω Fluke 1625 0.001 Ω to 100 Ω
Measuring range	Fluke 1623 0.001 Ω to 19.99 kΩ Fluke 1625 0.001 Ω to 299.9 kΩ
Intrinsic error	Fluke 1623 ± (2 % of reading + 3 digit) Fluke 1625 ± (2 % of reading + 2 d)
Operating error	Fluke 1623 ± (5 % of reading + 3 d) Fluke 1625 ± (5 % of reading + 5 d)
RA 4-pole ground resistance measurement (IEC 1557-5)
Measuring Voltage	Fluke 1623 Vm = 48 V ac Fluke 1625 Vm = 20/48 V ac
Short circuit current	Fluke 1623 > 50 mA Fluke 1625 250 mA ac
Measure frequency	Fluke 1623 128 Hz Fluke 1625 94, 105, 111, 128Hz
Resolution	Fluke 1623 0.001 Ω to 10 Ω Fluke 1625 0.001 Ω to 100 Ω
Measuring range	Fluke 1623 0.001 Ω to 19.99 kΩ Fluke 1625 0.001 Ω to 299.9 kΩ
Intrinsic error	Fluke 1623 ± (2 % of reading + 3 d) Fluke 1625 ± (2 % of reading + 2 d)
Operating error	Fluke 1623 ± (5 % of reading + 3 d) Fluke 1625 ± (5 % of reading + 5 d)
RA 3-pole ground resistance measurement with current clamp
Measuring Voltage	Fluke 1623 Vm = 48 V ac Fluke 1625 Vm = 20/48 V ac
Short circuit current	Fluke 1623 > 50 mA Fluke 1625 250 mA ac
Measure frequency	Fluke 1623 128 Hz Fluke 1625 94, 105, 111, 128Hz
Resolution	Fluke 1623 0.001 Ω to 10 Ω Fluke 1625 0.001 Ω to 10 Ω
Measuring range	Fluke 1623 0.001 Ω to 19.99 kΩ Fluke 1625 0.001 Ω to 29.99 kΩ
Intrinsic error	Fluke 1623 ± (7 % of reading + 3 d) Fluke 1625 ± (7 % of reading + 2 d)
Operating error	Fluke 1623 ± (10 % of reading + 5 d) Fluke 1625 ± (10 % of reading + 5 d)
RA 4-pole selective ground resistance measurement with current clamp
Measuring Voltage	Fluke 1623 Vm = 48 V ac Fluke 1625 Vm = 20/48 V ac
Short circuit current	Fluke 1623 > 50 mA Fluke 1625 250 mA ac
Measure frequency	Fluke 1623 128 Hz Fluke 1625 94, 105, 111, 128Hz
Resolution	Fluke 1623 0.001 Ω to 10 Ω Fluke 1625 0.001 Ω to 10 Ω
Measuring range	Fluke 1623 0.001 Ω to 19.99 kΩ Fluke 1625 0.001 Ω to 29.99 kΩ
Intrinsic error	Fluke 1623 ± (7 % of reading + 3 d) Fluke 1625 ± (7 % of reading + 2 d)
Operating error	Fluke 1623 ± (10 % of reading + 5 d) Fluke 1625 ± (10 % of reading + 5 d)
Stakeless ground loop measurement
Measuring Voltage	Fluke 1623 Vm = 48 V ac Fluke 1625 Vm = 20/48 V ac
Measure frequency	Fluke 1623 128 Hz (125 Hz on request) Fluke 1625 94, 105, 111, 128Hz
Noise current (Iext)	Fluke 1623 Max. Iext = 10 A (ac) (RA < 20 Ω) Max. Iext = 2 A (ac) (RA < 20 Ω) Fluke 1625 Max. Iext = 3 A
Resolution	Fluke 1623 0.001 Ω to 0.1 Ω Fluke 1625 0.001 Ω to 10 Ω
Measuring range	Fluke 1623 0.001 Ω to 199.9 kΩ Fluke 1625 0.001 Ω to 29.99 kΩ
Intrinsic error	Fluke 1623 ± (7 % of reading + 3 d) Fluke 1625 ± (7 % of reading + 2 d)
Operating error	Fluke 1623 ± (10 % of reading + 5 d) Fluke 1625 ± (10 % of reading + 5 d)
Environmental Specifications
Working temperature	-10 °C to +50 °C
Operating Temperature	0 °C to +35 °C
Nominal temperature	+18 °C to +28 °C
Storage Temperature	Fluke 1623 -20 °C to +60 °C Fluke 1625 -30 °C to +60 °C
Climatic class	C1 (IEC 654-1), -5 °C to + 45 °C, 5 % to 95 % RH
Protection Class	IP56 for case, IP40 for battery door according to EN 60529
Safety Specifications
Safety Rating	CAT II, 300 V
Mechanical & General Specifications
Display	Fluke 1623 1999 digit LCD – display with special symbols, digit height 25 mm, fluorescent backlight Fluke 1625 2999 Digit LCD – 7 segment liquid crystal display with special symbols and backlight
Size	133 mm x 187 mm x 250 mm
Weight	Fluke 1623 + 1625 1.1 kg (including batteries)
Warranty	Two years
Battery Life	Fluke 1623 Typical > 3000 measurements Fluke 1625 Typical 3000 measurements (RE+RH <e; 1 kΩ) Typical 6000 measurements (RE+RH <e; 10 kΩ)

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