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 |
Urms = 0 V |
Sockets E, ES, S or H to each other in any combination, max. Urms = 250 V (pertains to misuse) |
Safety |
Protection by double and/or reinforced insulation. Max. 50 V to earth per IEC61010-1. 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 (RE+RH ≤ 1 kΩ) |
With IEC LR6/type AA: typ. 6,000 measurements (RE + RH > 10 kΩ) |
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 (UST) |
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 MΩ |
Max. overload |
Urms = 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 |
Urms = 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 RA but ≤ 50 kΩ |
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 √E21 E22 E23 E24 E25E26 ) |
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 Ω to 300 kΩ |
Display range |
0.001 Ω to 2.999 Ω |
3.00 Ω to 29.99 Ω |
30.0 Ω to 299.9 Ω |
0.300 kΩ to 2.999 kΩ |
3.00 kΩ to 29.99 kΩ |
30.0 kΩ to 299.9 kΩ |
Resolution |
0.001 Ω |
0.01 Ω |
0.1 Ω |
1 Ω |
10
Ω |
100 Ω |
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 |
RH(RS + 2000 Ω)/RE x 1.25 x 10-6% + 5 digits |
Measuring error of RH and RS |
Typ. 10% of RE + RS + RH |
Max. probe resistance |
≤ 1 MΩ |
Max. auxiliary earth electrode resistance |
≤ 1 MΩ |
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 RH |
RH with Umeas = 48 V |
< 300 Ω |
< 6 Ω |
< 60 Ω |
< 600 Ω |
RH with Umeas = 20 V |
< 250 Ω |
< 2.5 kΩ |
< 25 kΩ |
< 250 kΩ |
Resolution |
1 mΩ |
10 mΩ |
100 mΩ |
1 Ω |
Selective Measurement of the Earthing Resistance (RE 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. Urms = 250 V (measurement will not be started) |
Measuring range |
0.020 Ω to 300 kΩ |
Display range |
0.001 Ω to 2.999 Ω |
3.00 Ω to 29.99 Ω |
30.0 Ω to 299.9 Ω |
0.300 kΩ to 2.999 kΩ |
3.00 kΩ to 29.99 kΩ |
Resolution |
0.001 Ω |
0.01 Ω |
0.1 Ω |
1 Ω |
10 Ω |
Accuracy |
±(7% of rdg + 2 digit) |
Operating error |
±(10% of rdg + 5 digit) |
Additional error because of probe- and auxiliary earth typ. electrode resistance |
RH(RS + 2000 Ω)/RETOTAL x 1.25 x 10-6% + 5 digits |
Measuring error of RH and RS |
Typ. of 10% of RETOTAL + RS + RH |
Measuring time |
Typ. 8 sec. with a fixed frequency 30 sec. max. with AFC and complete cycle of all measuring frequencies. |
Minimal current in single branch to be measured |
0.5 mA |
With transformer (1000:1) |
0.1 mA |
With transformer (200:1) |
Max. interference current through transformer |
3 A |
With transformer (1000:1) |
1. With recommended current clamps/transformers. |
Resistance Measurement (R~) |
Measuring method |
Current and voltage measurement |
Measuring voltage |
20 V AC, square pulse |
Short circuit current |
> 250 mA AC |
Measuring frequency |
94, 105, 111, 128 Hz selected manually or automatically (AFC) |
Measuring range |
0.020 Ω to 300 kΩ |
Display range |
0.001 Ω to 2.999 Ω |
3.00 Ω to 29.99 Ω |
30.0 Ω to 299.9 Ω |
300 Ω to 2999 Ω |
3.00 kΩ to 29.99 kΩ |
30.0 kΩ to 299.9 kΩ |
Resolution |
0.001 Ω |
0.01 Ω |
0.1 Ω |
1 Ω |
10 Ω |
100 Ω |
Accuracy |
±(2% of rdg + 2 digit) |
Operating error |
±(5% of rdg + 5 digit) |
Measuring time |
Typical 6 seconds |
Max. interference voltage |
24 V, with higher voltages measurement will not be started |
Max overload |
Urms max. = 250 V |
Resistance Measurement (R DC) |
Measuring method |
Current- voltage measurement as per IEC61557-4 possible |
Measuring voltage |
20 V DC |
Short circuit
Models: Fluke 1625-2 GEO Earth Ground Tester
Includes:
- GEO Earth Ground Tester
- User's Manual
- Batteries
- Quick Reference Guide
- USB Cable
Accessories: Fluke 1625-2 GEO Earth Ground Tester
Kits (2)
- Fluke ES-162P3-2 3-Pole Stake Kit
- Fluke ES-162P4-2 4-Pole Stake Kit
Cables (3)
- Fluke Cable Reel 25M BL
- Fluke Cable Reel 25M GR
- Fluke Cable Reel 50M RD
Current clamps (1)
- Fluke EI-1623 Selective/Stakeless Clamp Set
Other (3)
- Fluke EI-162AC Clip-on Current Transformer (Inducing)
- Fluke EI-162BN 320 mm Diameter Split Core Transformer
- Fluke EI-162X Clip-on Current Transformer (Sensing) with Shielded Cable Set
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