Fluke 1625 Geo Earth Ground Tester 2571664

Fluke 1625 Geo Earth Ground Resistance Meter

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Fluke 1625 Geo Earth Ground Tester (Mfg part No. 2571664) is a distinctive earth ground tester that can perform all four types of earth ground measurement. This Geo Earth ground tester is able to measure earth ground loop resistances using only clamps - called Stakeless testing.

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Description
Features
Specifications
Resources

The Fluke 1625 Geo Earth Ground Resistance Meter executes all four types of earth ground measurement tests. Capable of measuring earth ground loop resistances solely with clamps.

Specifications:	Fluke 1625-2 Geo Earth Ground Tester
General Specifications
Memory	Internal memory storage up to 1500 records accessible via USB port
Measuring Function	Interference voltage and frequency, earthing resistance 3- and 4-pole with/without clip-on current transformer, resistance 2-pole with AC, 2- and 4-pole with DC
Display	4 digit (2999 Digit) - 7 segment liquid crystal display, with improved visibility
Operation	Central rotary switch and function keys
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
Type of protection	IP56 for case, IP40 for battery door according to EN60529
Max voltage	Warning – socket "clamp" to socket E, ES, S or H
	U_rms = 0 V
	Sockets E, ES, S or H to each other in any combination, max. U_rms = 250 V (pertains to misuse)
Safety	Protection by double and/or reinforced insulation. Max. 50 V to earth per IEC61010-1. 300V CAT II, Pollution degree 2
Quality standard	Developed, designed and manufactured to comply with DIN ISO 9001
External field influence	Complies with DIN 43780 (8/76)
Auxiliary power	6 x 1.5 V alkaline (IEC LR6 or type AA)
Battery life span	With IEC LR6/type AA: typ. 3,000 measurements (R_E+R_H = 1 kO)
	With IEC LR6/type AA: typ. 6,000 measurements (R_E + R_H > 10 kO)
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) without accessories 7.6 kg (16.8 lb) incl. accessories and batteries in carrying case
Case material	Polyester
Measurement of Interference Voltage DC + AC (U_ST)
Measuring limits of error: method	Full wave rectification
Measuring range	1 V to 50 V
Display range	0.0 V to 50 V
Resolution	0.1 V
Frequency range	DC/AC 45 Hz to 400 Hz sine
Accuracy	±(5% of rdg + 5 digit)
Measuring sequence	Approx. 4 measurements/s
Internal resistance	Approx. 1.5 MO
Max. overload	U_rms = 250 V
Measurement of Interference Frequency (F)
Measuring limits of error: method	Measurement of oscillation period of the interference voltage
Measuring range	6.0 Hz to 400 Hz
Display range	16.0 Hz to 299.9 Hz to 999 Hz
Resolution	0.1 Hz to 1 Hz
Range	1 V to 50 V
Accuracy	±(1% of rdg + 2 digit)
Earthing Resistance (RE)
Measuring method	Current and voltage measurement with probe as IEC61557-5
Open circuit voltage	20/48 V, AC
Short circuit current	250 mA AC
Measuring frequency	94, 105, 111, 128 Hz selected manually or automatic. (AFC) 55 Hz in function R¹
Noise rejection	120 dB (16 2/3 , 50 , 60, 400 Hz)
Max. overload	U_rms = 250 V
Electrical Measurement Specifications
Intrinsic Error or Influence Quantity	Reference Conditions or Specified Operating Range	Designation Code	Requirements or Test in Accordance with the Relevant Parts of IEC 1557	Type of Test
Intrinsic error	Reference conditions	A	Part 5, 6.1	R
Position	Reference position ±90°	E1	Part 1, 4.2	R
Supply voltage	At the limits stated by the manufacturer	E2	Part 1, 4.2, 4.3	R
Temperature	0°C and 35°C	E3	Part 1, 4.2	T
Series interference voltage	See 4.2 and 4.3	E4	Part 5, 4.2, 4.3	T
Resistance of the probes and auxiliary earth electrodes	0 to 100 x R_A but = 50 kO	E5	Part 5, 4.3	T
System frequency	99% to 101% of the nominal frequency	E7	Part 5, 4.3	T
System voltage	85% to 110% of the nominal voltage	E8	Part 5, 4.3	T
Operating error	B = ±(\|A\| + 1,15 vE²₁ E²₂ E²₃ E²₄ E²₅ E²₆)		Part 5, 4.3	R
	B[%] = ± B/fiducial value x 100%
	A = intrinsic error
	En = variations
	R = routine test
	T = type test
Measuring range	0.020 O to 300 kO
Display range	0.001 O to 2.999 O
	3.00 O to 29.99 O
	30.0 O to 299.9 O
	0.300 kO to 2.999 kO
	3.00 kO to 29.99 kO
	30.0 kO to 299.9 kO
Resolution	0.001 O
	0.01 O
	0.1 O
	1 O
	10 O
	100 O
Accuracy	±(2% of rdg + 2 digit)
Operating error	±(5% of rdg + 5 digit)
Measuring time	Typical 8 seconds with a fixed frequency 30 sec. max. with AFC and complete cycle of all measuring frequencies
Additional error because of probe-and auxiliary earth electrode resistance	R_H(R_S + 2000 O)/R_E x 1.25 x 10^-6% + 5 digits
Measuring error of R_H and R_S	Typ. 10% of R_E + R_S + R_H
Max. probe resistance	= 1 MO
Max. auxiliary earth electrode resistance	= 1 MO
Automatic check if error is kept within the limits required by IEC61557-5. If after a measurement of probe-, auxiliary earth electrode- and earthing resistance, a measurement error of higher than 30% is assumed because of the influencing conditions, the display shows a warning symbol and a notice that RS or RH are too high.
Automatic Switchover of Measuring Resolution in Dependence to Auxiliary Earth Electrode Resistance R_H
RH with U_meas = 48 V	< 300 O
	< 6 O
	< 60 O
	< 600 O
RH with U_meas = 20 V	< 250 O
	< 2.5 kO
	< 25 kO
	< 250 kO
Resolution	1 mO
	10 mO
	100 mO
	1 O
Selective Measurement of the Earthing Resistance (R_E Clamp)
Measuring method	Current and voltage measurement with probe as per EN61557-5 and current measurement in the individual branch with additional current transformer (patent applied for).
Open circuit voltage	20/48 V AC
Short circuit current	250 mA AC
Measuring frequency	94, 105, 111, 128 Hz selected manually or automatically (AFC), 55 Hz (R¹)
Noise rejection	120 dB (162/3, 50, 60, 400 Hz)
Max. overload	Max. U_rms = 250 V (measurement will not be started)
Measuring range	0.020 O to 300 kO
Display range	0.001 O to 2.999 O
	3.00 O to 29.99 O
	30.0 O to 299.9 O
	0.300 kO to 2.999 kO
	3.00 kO to 29.99 kO
Resolution	0.001 O
	0.01 O
	0.1 O
	1 O
	10 O
Accuracy	±(7% of rdg + 2 digit)
Operating error	±(10% of rdg + 5 digit)
Additional error because of probe- and auxiliary earth typ. electrode resistance	R_H(R_S + 2000 ?)/R_ETOTAL x 1.25 x 10^-6% + 5 digits
Measuring error of R_H and R_S	Typ. of 10% of R_ETOTAL + R_S + R_H
Measuring time	Typ. 8 sec. with a fixed frequency 30 sec. max. with AFC and complete cycle of all measuring frequencies.

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Chracteristics:	Fluke 1625 Geo Earth Ground Resistance Meter
	Automatically chooses the best measuring frequency - creating more accurate measurements
	Features R* measurement - Calculates earth ground impedance at 55 Hz to accurately reflect the earth ground resistance that a fault-to-earth would see
	User programmable limits
	Continuity with audible alert
	Selective earth ground rod testing with 1 clamp
	Capable of 2-pole resistance measurement AC
	Stakeless earth ground rod testing with 2 clamps
	3-Pole & 4-Pole earth ground measurements, 4-Pole soil resistivity measurements, 2-Pole & 4-Pole resistance measurements DC
	Switchable voltage 20V/48V
	2 year warranty

Fluke 1625 Geo Earth Ground Resistance Meter

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