Fluke 1625-2 GEO Earth Ground Tester
Detailed Specifications | |
General | |
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. 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 (RE+RH ≤ 1 kΩ) |
With IEC LR6/type AA: typ. 6,000 measurements (RE + RH > 10 kΩ) | |
Dimensions (WxHxD) | 250 mm x 133 mm x 187 mm (9.75 in x 5.25 in 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 R* |
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 | |
A = intrinsic error En = variations R = routine test T = type test |
B[%] = ± B/fiducial value x 100% | |||
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 RHand 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 (R*) | |||
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) | ||
* 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 current | 250 mA dc | |||
Formation of measured value | With 4-pole measurement wires on H, S, ES can be extended without additional error. Resistances > 1 Ω in wire E can cause additional error of 5m Ω/Ω. |
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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 | ||||
3.0 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 sequence | Approx. 2 measurements/s | |||
Measuring time | Typical 4 second including reversal of polarity (2-pole or 4-pole) | |||
Maximum interference voltage | ≤ 3 V ac or dc, with higher voltages measurement will not be started | |||
Maximum inductivity | 2 Henry | |||
Maximum overload | Urms = 250 V |
Compensation of Lead Resistance (RK) | ||||
Compensation of lead resistance (RK) can be switched on in functions RE 3-pole, RE 4-pole (clamp), R ac, and R dc 2-pole | ||||
Formation of measured value | Rdisplay = Rmeasured - Rcompensated* | |||
* Value of setpoint entry RK = 0.000 Ω, variable from 0.000 to 29.99 Ω by means of measuring adjustment. |
Stakeless Ground Loop Measurement (Two Clamp Stakeless) | ||||
Switch position | RA 4-pole (two clamp Stakeless) | |||
Resolution | 0.001 Ω to 0.1 Ω | |||
Measuring range | 0.02 Ω to 199.9 Ω | |||
Accuracy | ± (7 % rdg + 3 digit) | |||
Operating error | ± (10 % rdg + 5 digit) | |||
Measuring voltage | Vm = 48 V ac (primary) | |||
Measuring frequency | 128 Hz | |||
Noise current (IEXT) | Max. IEXT = 10 A (ac) (RA < 20 Ω) | |||
Max. IEXT = 2 A (ac) (RA > 20 Ω) | ||||
Measuring principle: Stakeless measurement of resistance in closed loops using two current transformers. 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. |
Description
Fluke 1625-2 GEO Earth Ground Tester
World class tester that will simplify and speed up testing time
The Fluke 1623 and 1625 are distinctive earth ground testers that can perform all four types of earth ground measurement. Specifically, the Fluke 1623 and 1625 testers are 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.
Fluke 1625-2 Comes Supplied With:
- GEO Earth Ground Tester
- User’s Manual
- Batteries
- Quick Reference Guide
- USB Cable
Testing Methods
- 3- and 4-Pole Fall of Potential – standard earth ground testing using two ground stakes
- Selective testing – without disconnecting ground rods, a technician can measure ground resistance using a combination of stakes and a clamp.
- Stakeless testing – innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance.
The Fluke 1625 offers these advanced features:
- Automatic Frequency Control (AFC) – identifies existing interference and chooses a measurement frequency to minimize its effect, providing a more accurate earth ground value.
- R* measurement – calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault-to-earth ground would see.
- Adjustable limits – for quick test result verification.
Features & Specification
Key Features | Stakeless Testing, Memory Function, Downloadable, 2 pole testing, 3 pole testing, 4 pole testing, Backlit Display, One Button Operation | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Manufacturer | Fluke Testers | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Short Description |
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Product Stock Status | Next Day Delivery (subject to availability) |
Delivery
Updated January 2024
Please note, our cut-off time is 2:00pm
Orders requiring calibration
Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.
Bank/Public Holidays
Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scopeof our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.
*UK Mainland (Revised March 2021)
Service | Price |
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT | FREE |
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT | £4.95 |
Next WORKING Day (excludes Saturdays, Sundays and public holidays) – UK Mainland only - Zones A & B - ANY order value - Order by 2:00pm | £7.75 |
Saturday ANYTIME Delivery - Order by 2:00pm | £9.95 |
Delivery Surcharges
Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:
- Zones A & B - Mainland delivery rates apply.
- Zone C - Scottish Highlands (Charges are calculated at the checkout).
- Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
- Zone E - Northern Ireland (Charges are calculated at the checkout).
- Zone F - Republic of Ireland (Charges are calculated at the checkout).
Offshore Services
All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.
International delivery
International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk
Export
All export inquiries should be directed to the export division before placement of order.
If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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