Fluke 1625 FE 1625 Users Manual

Fluke 1625 Manual

Fluke 1625 manual table of contents:

  • Fluke 1625 | FE 1625 Users Manual - Page 1
    ® 1625 Earth/Ground Tester Users Manual January 2006 © 2006 Fluke Corporation, All rights reserved. Printed in USA All product names are trademarks of their respective companies.
  • Fluke 1625 | FE 1625 Users Manual - Page 2
    ... fuses, disposable batteries, or to any product which, in Fluke's opinion, has been misused, altered,... a greater or different warranty on behalf of Fluke. Warranty support is available only if product ... price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts ...
  • Fluke 1625 | FE 1625 Users Manual - Page 3
    ... of Interference Voltage (UST) ...Measurement of Interference Frequency (FST)...Measurement of Earthing Resistance (RE) ...Selective Measurement of Earthing Resistance...Checking for Correct Measuring Connection ...Beeper...LO-BAT...Specifications...Measurement of Interference Voltage DC + AC (UST) ......
  • Fluke 1625 | FE 1625 Users Manual - Page 4
    1625 Users Manual Measurement of Interference - Voltages and Frequencies...Measurement of Earthing Resistances...3-pole/4-pole ...Replacing Batteries...Recalibration ...Storage...Specifications ...Principle of Operation ...Purpose...Operation...Settings on the Tester ...Applications ...Description of ...
  • Fluke 1625 | FE 1625 Users Manual - Page 5
    List of Tables Table Title Page 1. 2. 3. Models and Accessories ...3 Electrical Measurement Specifications ...14 Description of Displays...56 iii
  • Fluke 1625 | FE 1625 Users Manual - Page 6
    1625 Users Manual iv
  • Fluke 1625 | FE 1625 Users Manual - Page 7
    .... 12. 13. 14. 15. 16. 17. 18. 19. 20. Fluke 1625 Earth/Ground Tester...Description of Functions ...Display ...Operating Elements ...Elements ...Operational Modes ...Measurement of Interference Voltages and Frequencies...Earthing Resistances Measurement - Method ...3-pole/4-pole Measurement of ...
  • Fluke 1625 | FE 1625 Users Manual - Page 8
    1625 Users Manual vi
  • Fluke 1625 | FE 1625 Users Manual - Page 9
    Earth/Ground Tester Introduction At locations involving the generation, distribution and consumption of electrical energy, certain safety ... parallel electrodes. One specific application of this capability is quick and accurate measurement of power pylon grounds. The 1625 also incorporates automatic ...
  • Fluke 1625 | FE 1625 Users Manual - Page 10
    ... set of operating information including specifications. Selective measurements are described in the main section of this manual. • Figure 1 displays the Fluke 1625 Earth/Ground Tester: 1625 EARTH / GROUND TESTER START TEST ST H/C2 DISPLAY MENU S/ P2 Earth/...
  • Fluke 1625 | FE 1625 Users Manual - Page 11
    ...and accessories. Table 1. Models and Accessories Description Earth Ground Tester - Basic (Includes ...leads and 2 clips) Earth Ground Tester - Fully Loaded (Includes manual, 2 leads and ... 1625 Users Manual Item/Part Number Fluke-1625 Fluke-1625 Kit ... ES-162P3 ES-162P4 EI-1625 EI-162X 2539195 EI-162AC...
  • Fluke 1625 | FE 1625 Users Manual - Page 12
    1625 Users Manual Safety Instructions W Warning This measuring equipment is only to be operated by qualified staff and in accord ...use of this equipment requires compliance with the legal and safety instructions pertaining to the specific application in question. Similar precuations apply to the use ...
  • Fluke 1625 | FE 1625 Users Manual - Page 13
    Earth/Ground Tester Setup Qualified Staff Consists of persons familiar with the setting up, assembly, starting up and ... the Scope of Delivery Upon unpacking immediately check the accessories for missing parts. The accessories supplied are listed on page 2. Caution Although the instrument is easy to ...
  • Fluke 1625 | FE 1625 Users Manual - Page 14
    1625 Users Manual General Microprocessor controlled universal earth resistance meter with fully automated measuring frequency selection ... AFC), this instrument offers the latest measuring technology in the field of earthing resistance measurements. By means of the selectable limit input with visual ...
  • Fluke 1625 | FE 1625 Users Manual - Page 15
    Earth/Ground Tester Assembly Assembly The instrument is made up of two parts: 1. 2. The base part which contains the measuring electronics.... with quality system DIN ISO 9001. Description of Functions The following flowchart presents a description of the functions of the 1625 Earth/Ground Tester. 7
  • Fluke 1625 | FE 1625 Users Manual - Page 16
    1625 Users Manual EXT H S ES E Switching Voltage measurement Current measurement Source Undervoltage detection Supply voltage ADC Comp ... for DC and AC (DC without operational sign, AC signal sinus calibrated for r.m.s. values). If limit values are exceeded no measurement will be started....
  • Fluke 1625 | FE 1625 Users Manual - Page 17
    Earth/Ground Tester Description of Functions Measurement of Earthing Resistance (RE) The earthing resistance is determined by a... operated (parallel) earthing system. The current flowing through the single earth electrode is measured with an external current transformer. Resistance Measurement (R~) ...
  • Fluke 1625 | FE 1625 Users Manual - Page 18
    1625 Users Manual LO-BAT Supervision of the battery charge status is done with a comparator circuit. Via microprocessor, a ...the display with symbol LO-BAT. Specifications General: Measuring function: Microprocessor controlled, fully automated earth measuring instrument with additional functions...
  • Fluke 1625 | FE 1625 Users Manual - Page 19
    Earth/Ground Tester Specifications Operation: Working temperature range: Operating temperature range: Nominal temperature range: Storage ...S. The r.m.s. value of the series interference voltage shall be 3 V; resistance of the auxiliary earth electrode and of the probes: 0 to 100 x RA but ≤ 50 kΩ; ...
  • Fluke 1625 | FE 1625 Users Manual - Page 20
    1625 Users Manual Max voltage: Wsocket A to socket EFGH Urms = 0 V Sockets " E ES S H " to each other in any combination, max. Urms= 250 V (pertains to misuse) EMC (Emission Immunity): Quality standard: External field influence: Auxiliary power: Battery life span: IEC 61326-1:1997 Class A ...
  • Fluke 1625 | FE 1625 Users Manual - Page 21
    Earth/Ground Tester Specifications Measurement of Interference Voltage DC + AC (UST) Measuring method:...Range 1V...50 V Limits of Error ± (1% v. mv +2 digit) Earthing Resistance (RE) Measuring method: Open circuit ...AC 94 , 105 , 111 , 128 Hz selected manually or automatic.(AFC) 55 Hz in function R*...
  • Fluke 1625 | FE 1625 Users Manual - Page 22
    1625 Users Manual Table 2. Electrical Measurement Specifications Requirements or Test in Accordance with the Relevant Parts of IEC ... Temperature Series interference voltage Resistance of the probes and auxiliary earth electrodes System frequency System voltage Operating error E2 Part 1, 4.2, 4.3 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 23
    Earth/Ground Tester Specifications A = En R = T = intrinsic error = variations B[%] = ± B x 100% fiducial value routine ... error because of probe-and auxiliary earth electrode resistance: Measuring error of RH ... RS: Max. probe resistance: Max. auxiliary earth electrode resistance: RH ( RS + 2000ମ.
  • Fluke 1625 | FE 1625 Users Manual - Page 24
    1625 Users Manual fluencing conditions (see diagramm), the display shows a warning symbol W and a notice that RS or RH are too ... 10k 1 00k 1M RS edw005.eps Automatic switchover of measuring resolution in dependence to auxiliary earth electrode resistance RH: RH with Umeas = 48 V < 300 Ω < 6...
  • Fluke 1625 | FE 1625 Users Manual - Page 25
    Earth/Ground Tester Specifications Selective Measurement of the Earthing Resistance (REA) Measuring method: Current...AC 94, 105, 111, 128 Hz selected manually or automatically (AFC), 55 Hz (R*) 120 dB .... Additonal error because of probe- and auxiliary earth typ.electrode resistance: Measuring error of...
  • Fluke 1625 | FE 1625 Users Manual - Page 26
    1625 Users Manual Minimal current in single branch to be measured: 0.5 mA 0.1 mA with transformer (1000:1) with transformer (200:1) with a ... AC, square pulse > 250 mA AC 94, 105, 111, 128 Hz selected manually or automatically (AFC) Measuring Range Display Range 0.001 Ω ...2.999 Ω 3.0 Ω...
  • Fluke 1625 | FE 1625 Users Manual - Page 27
    Earth/Ground Tester Specifications Resistance Measurement (RF) Measuring method: Open circuit voltage: Short circuit current: Formation of measured value: current- voltage measurement as per IEC61557-4 possible 20 V DC 200 mA DC with 4-pole measurement wires on H, S, ES can be extended ...
  • Fluke 1625 | FE 1625 Users Manual - Page 28
    1625 Users Manual Compensation of Lead Resistance (RK) Compensation of lead resistance (RK) can be switched on in functions RE 3pole, RE 4pole A, R~ , and R F 2pole Formation of measured value: Rdisplay = Rmeasured - Rcompensated* * Value of setpoint entry RK = 0.000Ω, variable from 0.000......
  • Fluke 1625 | FE 1625 Users Manual - Page 29
    Earth/Ground Tester Description of the Operating Elements Description of the Operating Elements Figure 4 illustrates the operating elements described below. 6 2 START TEST 1625 EARTH / GROUND TESTER 7 H/C2 3 DISPLAY MENU S/ P2 8 Earth/Ground Resistance 300k AC Resistance 300 k ...
  • Fluke 1625 | FE 1625 Users Manual - Page 30
    1625 Users Manual D "CHANGE ITEM" button to change the set point entry values. E "... as well as active illumination. G Connecting socket H (auxiliary earth electrode) (4 mm ø) also usable with ... No voltage permissable to sockets EFGH. J Connecting socket F (earthing probe) (4 mm ø) also usable with ...
  • Fluke 1625 | FE 1625 Users Manual - Page 31
    Earth/Ground Tester Description of the Operating Elements Description of Display Elements The display (Figure 5) is divided into four... Frequency of measuring voltage Measuring voltage limit 20/48 V Earthing resistance Auxiliary earth electrode resistance Probe resistance Compensation resistance Low ...
  • Fluke 1625 | FE 1625 Users Manual - Page 32
    1625 Users Manual R~ R* AFC TEST LIMIT > LIMIT EFGH B } LO-BAT REMOTE C AC- resistance Earthing impedance (measuring frequency 55 Hz) Automatic-... or measured value instable W Warning Refer to Operating Instructions. Procedure of Measurements W Warning Use the instrument on voltage ...
  • Fluke 1625 | FE 1625 Users Manual - Page 33
    Earth/Ground Tester Procedure of Measurements POWER ON Functions During switching on of the instrument with the central rotary switch it is .... By pressing the "DISPLAY MENU" button a switch over to the last calibration date is possible. This display sequence is terminated by turning the central ...
  • Fluke 1625 | FE 1625 Users Manual - Page 34
    1625 Users Manual e) Activation of display illumination By keeping the "CHANGE ITEM" button pressed during the switch on sequence the display illumination is activated. Illumination fades away automatically if the instrument is switched to"Stand by" and, together with the instrument, is ...
  • Fluke 1625 | FE 1625 Users Manual - Page 35
    Earth/Ground Tester Procedure of Measurements CONTROL LOOP ON/OFF MEASURING LOOP POWER ON Function SELECT MEASURING FUNTION WITH CENTRAL ROTARY SWITCH 1 X START 1 X DISPLAY MEASUREMENT SET VALUE OR VOLTAGE MEASUREMENT LIMIT DISPLAY, MEASURED VALUE OR SUPPLEMENTARY VALUE 1 X DISPLAY...
  • Fluke 1625 | FE 1625 Users Manual - Page 36
    1625 Users Manual Control Loop After turning the function rotary switch, the voltage display mode is reached. Pushing "DISPLAY MENU" now calls up the control loop. According to the selected measuring function, different setting values can be displayed and changed in the control loop. The "...
  • Fluke 1625 | FE 1625 Users Manual - Page 37
    Earth/Ground Tester Procedure of Measurements A and RE 4pole A }(warning- UM RK I ( ratio ) RE LIMIT 48 V/20 V 0.000 Ω ...... activated with CODE sound) R* On / Off only if activated with CODE * (see Compensation of Earth Electrode Connecting Lead) Function Parameter U ST F ST FM R~ RK R ~ ...
  • Fluke 1625 | FE 1625 Users Manual - Page 38
    1625 Users Manual Measuring Loop This loop is entered by pressing the "START TEST" button. After releasing "START TEST" the... correct input sockets are used. The display symbols EFGH and B are assigned to a specific socket as shown in Figure 4. From the way the symbols are displayed, the validity...
  • Fluke 1625 | FE 1625 Users Manual - Page 39
    Earth/Ground Tester Procedure of Measurements Safety Control Measurements Before each measurement ...RE and R~; > 3 V in RF) wrong or incomplete connection Problems during the measuring sequence (display "E1 ... active in every switch position before an earthing or resistance measurement. If the pre-set ...
  • Fluke 1625 | FE 1625 Users Manual - Page 40
    1625 Users Manual 1625 EARTH / GROUND TESTER START TEST H /C2 DISPLAY MENU AC Resistance 300 k S/P2 Earth/Ground Resistance 300 k DC Low Resistance...well as measurements of the soil resistivity of geological strata. A specific description of the different applications is given further ...
  • Fluke 1625 | FE 1625 Users Manual - Page 41
    Earth/Ground Tester Procedure of Measurements To keep the instrument as simple as possible at the time of delivery, all special functions, such as LIMIT input, BEEPER programming, measurement of earthing impedance (R*) etc, are not activated at delivery. They can be activated ...
  • Fluke 1625 | FE 1625 Users Manual - Page 42
    1625 Users Manual 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU ...edw012.eps Figure 9. 3-pole/4-pole Measurement of Earthing Resistance - Process 1. Turn central rotary ...also see "The Influence of Potential Gradient areas on Earth Resistance Measurement"). Such a condition is normally...
  • Fluke 1625 | FE 1625 Users Manual - Page 43
    Earth/Ground Tester Procedure of Measurements An accuracy test of the results is made with another measurement following repositioning of the auxiliary earth electrode or probe. If the value stays the ... Measured Values edw013.eps Figure 10. Earth Resistance - Maximum Permissible Value 35
  • Fluke 1625 | FE 1625 Users Manual - Page 44
    1625 Users Manual Measurement of Single Earth Electrode Resistances in Mesh Operated Earthing ... has been created to measure single earth electrodes in permanently wired or mesh operated ...do not distort the measuring result. A disconnection of the earth electrode before the measurement is therefore no...
  • Fluke 1625 | FE 1625 Users Manual - Page 45
    ... Electrode Resistances See Figure 12. 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY... Figure 12. 3-pole/4-pole Measurement of Single Earth Electrode Resistances Turn central rotary ... measuring lead. Fix clip-on transformer around the earth electrode to be measured. Make sure that the clip-on...
  • Fluke 1625 | FE 1625 Users Manual - Page 46
    1625 Users Manual Note The ratio that is preset from factory is correct for the EI162X sensing clamp... by another measurement following repositioning of the auxiliary earth electrode or probe. If the value stays... too close. 3-pole Measurement with Longer Earth Electrode Connecting Leads 1. 2. Use one...
  • Fluke 1625 | FE 1625 Users Manual - Page 47
    Earth/Ground Tester Procedure of Measurements reliable values, the instrument offers the possibility of averaging over a longer period. ... is divided into five components according to the present resistances involved. One part flows via pylon construction to the overhead earth wire and further to the ...
  • Fluke 1625 | FE 1625 Users Manual - Page 48
    ...these equivalent resistances are displayed as: R Ei = U meas li Therefore the earthing resistance RE of the pylon is determined as a parallel circuit of the individual equivalent resistances: RE = 1 1 1 1 1 + + + R E1 R E 2 R E 3 R E 4 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU...
  • Fluke 1625 | FE 1625 Users Manual - Page 49
    Earth/Ground Tester Procedure of Measurements 3. Press "START TEST" button Now a fully ...of REi of all pylon foots are determined, the actual earth resistance RE has to be calculated: RE =... despite correct orientation of the current transformer, a part of the measuring current is flowing upwards into ...
  • Fluke 1625 | FE 1625 Users Manual - Page 50
    1625 Users Manual Time average measurement: If there is a warning "measured value..., in every measurement of the four RE positions, the earthing impedance R* is displayed before all other... Clip-on Transformer Errors If the measurement of an earthing resistance by means of a clip-on transformer results...
  • Fluke 1625 | FE 1625 Users Manual - Page 51
    Earth/Ground Tester Procedure of Measurements 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth/Ground Resistance 300 k AC Resistance 300 k DC .../ GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth/Ground Resistance 300 k AC Resistance 300 k DC ...
  • Fluke 1625 | FE 1625 Users Manual - Page 52
    ...not be ignored, a compensation of the connecting lead resistance to the earth electrode is possible. Proceed as described below: Measuring process: 1625 EARTH / GROUND TESTER START TEST H /C2 ...electrode edw019.eps Figure 15. Compensation of Earth Electrode Connecting Lead 1. 2. 44 Turn...
  • Fluke 1625 | FE 1625 Users Manual - Page 53
    ... settings at the beginning of the measurement so that a succeeding measurement of the earthing resistance can be implemented by pressing "START TEST"...(4), Paper 258, S 478496; 1915/16). 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth/Ground Resistance 300k AC Resistance 300 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 54
    1625 Users Manual 1. Four earth spikes of the same length are positioned into the soil ... to a depth of approx. the distance "a" between two earth spikes. By increasing "a", deeper strata can ..., a profile can be measured from which a suitable earth electrode can be determined. According to the depth ...
  • Fluke 1625 | FE 1625 Users Manual - Page 55
    Earth/Ground Tester Procedure of Measurements 1 2 Soil restivity E 3 A Distances of Probe edw021.eps Curve 1: As ρE decreases only deeper down, a deep earth electrode is advisable Curve 2: As ρE decreases only down to point A, an increase in the depth...
  • Fluke 1625 | FE 1625 Users Manual - Page 56
    1625 Users Manual 90 E ES O S H I edw022.eps Measurement of Resistances Resistance Measurement (R~) This measuring function ... (see "Compensation of Measuring Lead Resistance"). 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/ P2 Earth/Ground Resistance 300 k AC Resistance 300 k...
  • Fluke 1625 | FE 1625 Users Manual - Page 57
    Earth/Ground Tester Procedure of Measurements 2. 3. 4. 5. Connect instrument according to picture. In this mode, all settings and ... the extension lead, a compensation has to be done. 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth/Ground Resistance 300 k AC Resistance 300 k...
  • Fluke 1625 | FE 1625 Users Manual - Page 58
    1625 Users Manual W Warning Due to the high measuring current inductive loads can cause lethal induced voltages during disconnection from the measuring circuit. 4. Start measurement with "START TEST" button. First, "R1" with positive voltage is measured on jack "E". After releasing the "START ...
  • Fluke 1625 | FE 1625 Users Manual - Page 59
    ...a short moment deletes the line compensation again. 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth/Ground Resistance 300 k AC Resistance 300 k ... instrument set-up with customer defined settings according to the specific need. Settings can only be made in the ...
  • Fluke 1625 | FE 1625 Users Manual - Page 60
    1625 Users Manual Standard presetting AFC 48V 0.000 Ω Off 999 kΩ Off Off AFC 48V 0.000 Ω 1000 Off 999 kΩ Off Off AFC 0.000 Ω Off 999 kΩ Off Function Parameter FM Setting range (AFC/94/105/111/128) Hz 48 V/20 V 0.000 Ω ...29.99 Ω On / Off 0.000 Ω ...999 kΩ On/Off On/Off (...
  • Fluke 1625 | FE 1625 Users Manual - Page 61
    Earth/Ground Tester Procedure of Measurements RF 2pole and 4pole RK LIMIT R LIMIT }(Warning sound) 0.000 Ω ...29.99 Ω On/Off 0.000 Ω ...9,99 kΩ On/Off 0.000 Ω Off 9.99 kΩ Off Storing a Code 1. Press all 4 keys simultaneously and move central selector from OFF to the desired ...
  • Fluke 1625 | FE 1625 Users Manual - Page 62
    1625 Users Manual 6. 7. The changed value is stored by pressing the "DISPLAY MENU" key. Pressing the "START TEST" key exits the setting program. Note If the limit values required by regulations are changed incorrect, erroneous test results may be displayed. Deleting a Code 1. Press all 4 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 63
    Earth/Ground Tester Description of Displays Description of Displays Table 3. Description of Displays Function Before "START" Displays Condition Stand by position to reduce power consumption edw027.eps Note Turn rotary switch or push button. All measured values remain stored ST V No or ...
  • Fluke 1625 | FE 1625 Users Manual - Page 64
    1625 Users Manual Function Displays Condition Dangerous AC - voltage > 50 V edw031.eps Note Apart from voltage measurement all ... spikeresistance is being tested. Wait for test result. E TEST edw036.eps Earth resistance is being tested. Wait for test result. Legend: W= displayed flashing 56
  • Fluke 1625 | FE 1625 Users Manual - Page 65
    Earth/Ground Tester Description of Displays Function Displays Condition Measuring circuit of earth- and... electrode disconnected. Note Check lead connection on earth spikes measuring lead might be defective. ... exceeded because of too high sense or aux earth spike resistance. Measuring range exceeded. ...
  • Fluke 1625 | FE 1625 Users Manual - Page 66
    1625 Users Manual Function Displays Condition Display of measured value exceeds LIMIT. edw041.eps Note Measured value is higher than set LIMIT. E LIMIT K LIMIT edw042.eps Compensation higher than measured value. Delete compensation or switch instrument ON/OFF. Reverse polarity. ST Wrong...
  • Fluke 1625 | FE 1625 Users Manual - Page 67
    Earth/Ground Tester Description of Displays Function Displays Condition Operation under faulty conditions. Note Check batteries. Switch ON/OFF if still faulty, contact service. Reverse clamp or see note on page 28. No reactions to button control etc. edw046.eps After "START" E edw047.eps ...
  • Fluke 1625 | FE 1625 Users Manual - Page 68
    1625 Users Manual Function Displays Condition EE PROM memory access malfunction. edw050.eps Note contact service. Internal computation malfunction. edw051.eps Thermal overload. Cool thoroughly. edw052.eps ST E 12MKH REMOTE LO-BAT TEST LIMIT VmA k Hz nFmH Battery voltage decreases at ...
  • Fluke 1625 | FE 1625 Users Manual - Page 69
    Earth/Ground Tester Care and Maintenance detergent or spirit. Avoid aggressive cleaning agents and solvents (trilene, chlorothene etc.). Service work must only be undertaken by trained ... are not modified to the detriment of safety, that assembled parts correspond to the original spares and that they ...
  • Fluke 1625 | FE 1625 Users Manual - Page 70
    1625 Users Manual Recalibration This instrument exceeds the prescribed accuracies by multiples as it leaves the factory... offer you periodic checking and calibration of your meters. You may order... Center. Include a brief description of the problem. Fluke assumes NO responsibility for damage in transit...
  • Fluke 1625 | FE 1625 Users Manual - Page 71
    ... A Stakeless Earth/Ground Resistance Testing Introduction Stakeless testing provides the ground tester ... two clampon current transformers. The use of ground stakes is not necessary. Before this method ... testing eliminates these problems and ideally complements the ground testers' standard testing ...
  • Fluke 1625 | FE 1625 Users Manual - Page 72
    1625 Users Manual edw060.eps Specifications General: Adapter unit for use with ground testers in the mode: RE D 3 pole (Order No. EI-1625) All information ... using earth stakes for the probe and the auxiliary earth electrode. -10 °C ...+55 °C. 0 °C ...+30 °C. -30 °C ...+70 °C. ...
  • Fluke 1625 | FE 1625 Users Manual - Page 73
    Stakeless Earth/Ground Resistance Testing Principle of Operation Dimensions Operating error*: Display... VAC (primary). 0,020 Ω ...100 Ω. .001...1 ohm. CT EI-162AC to induce voltage... cm. Principle of Operation Purpose Testing the resistances of individual ground connections in systems with parallel...
  • Fluke 1625 | FE 1625 Users Manual - Page 74
    1625 Users Manual Equivalent diagram AC Source U RX R1 R2 R3 Rn-1 Rn edw061.eps U = I R X + 1 1 1 R R 66 + 1 2 + ⋅⋅⋅⋅ + 1 R n
  • Fluke 1625 | FE 1625 Users Manual - Page 75
    Stakeless Earth/Ground Resistance Testing Principle of Operation If the parallel connection of resistors, R1...Rn is considerably lower than the ground connection under test RX: 1 1 1 R R then ...edw062.eps After synchronous rectification of current and voltage the tester displays RX. 67
  • Fluke 1625 | FE 1625 Users Manual - Page 76
    ... tester and to a current clamp. 1625 EARTH / GROUND TESTER H H/C2 START TEST S S/P2 ... connections are in the correct polarity. Turn the rotary switch of the tester to position RE D 3 pole. Note Use .... Clamp both transformers around the ground conductor to be tested. Note Try to have a distance > ...
  • Fluke 1625 | FE 1625 Users Manual - Page 77
    Stakeless Earth/Ground Resistance Testing Principle of Operation Erder >10 cm edw064.... no meaning. Settings on the Tester Refer to the Operation section in the Testers instruction manual. The rotary switch ... value) Set compensation resistance to 0,000 Ohms Set transformer ratio to 1000 (standard ...
  • Fluke 1625 | FE 1625 Users Manual - Page 78
    1625 Users Manual Applications Example1: Ground rod on power poles. edw065.eps ... are for example bonded to grids or concrete-footing grounds and other conducting elements such ... systems or frameworks. In this case the resistances of individual ground paths are not of significance. It must be tested...
  • Fluke 1625 | FE 1625 Users Manual - Page 79
    Stakeless Earth/Ground Resistance Testing Principle of Operation Lightning Protection M Footing ground Framework edw066.eps 71
  • Fluke 1625 | FE 1625 Users Manual - Page 80
    1625 Users Manual Description of Displays With stakeless ground testing some display combinations have certain significance. Display Significance Note ...meas- next test uring range or adapter cable is plugged into ground tester incorrectly edw068.eps Legend: W= displayed flashing ...
  • Fluke 1625 | FE 1625 Users Manual - Page 81
    Stakeless Earth/Ground Resistance Testing Principle of Operation Display Significance Note ST V Resistance under test is above measuring range edw069.eps Legend: W= displayed flashing 73
  • Fluke 1625 | FE 1625 Users Manual - Page 82
    .... This shows that an accurate measurement of the dissipation resistance is necessary to determine the exact earthing conditions for protective measures. As the dissipation resistance is not only dependent on the specific soil resistivity, that is the ...
  • Fluke 1625 | FE 1625 Users Manual - Page 83
    Earthing Resistance Principle of Operation Soil Resitivity [ρE] Ω.m Moist humus soil, moor soil, swamp Farming soil,loam y...Rock 100 33 17 10 40 20 10 30 3 10 Earthing Resistance (Ω) Earthing Rod m Depth 6 5 10 3 5 12 Earthing Strip m 10 6 20 3 Type of Soil 150 300 50 66 25 33 15 20 60 80 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 84
    1625 Users Manual Soil Resistivity ρE The soil resistivity is the resistance measured between two opposing... edw054.eps The soil resistivity significantly depends on the specific kind of material (farming soil, dry sand...resistivity than moist soil and frozen ground has a higher resistivity than dry,...
  • Fluke 1625 | FE 1625 Users Manual - Page 85
    Earthing Resistance Principle of Operation 28 24 Earth resistance RE 20 16 12 8 4 ... 11 12 Jan. month July Dec. edw055.eps Temporal change of the earthing resistance of a conductor earth electrode..., earth cable). 14 12 Earth resistance RE 10 8 6 4 2 0 0 1 Jan. 2 3 4 5 month edw056.eps 6 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 86
    1625 Users Manual Measuring Method The current voltage measuring method is based on the block ... electrode resistance RH). Voltage UE drops on earthing resistance RE (UE proportional to RE.)... cable is used to connect socket ES with the earth electrode. With that, the voltage drop of the cable between ...
  • Fluke 1625 | FE 1625 Users Manual - Page 87
    ... distance. Once the voltage does not increase, the probe is levelled to earth potential FE that is, outside the potential gradient area. It is the ... correspondingly narrow (10 ...15 m). Determining the probe- and auxiliary earth electrode resistance provides information about the size of a possible ...
  • Fluke 1625 | FE 1625 Users Manual - Page 88
    1625 Users Manual The Influence of Potential Gradient Areas on Earth Resistance Measurement To pick ... too low, which also means that the earthing resistance appears to be lower than it actually ... in the same values. Normally, a distance of 20 m to the earth electrode and to the probes to each other ...
  • Fluke 1625 | FE 1625 Users Manual - Page 89
    ... of Operation Earth Impedance (R*) on High Voltage Transmission Lines The earthings of transmission line pylons are interconnected via the overhead earth ... wire is frequency dependent. Accordingly, the measuring frequency applied by the tester has to be close to the mains frequency in order to get ...
  • Fluke 1625 | FE 1625 Users Manual - Page 90
    1625 Users Manual 82



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