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
    ... only to the original buyer or end-user customer of a Fluke authorized reseller, and does not... a greater or different warranty on behalf of Fluke. Warranty support is available only if product ... WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL,...
  • 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 ...of Interference Voltage DC + AC (UST) ...Measurement of Interference Frequency (FST)...Earthing Resistance (RE)...Selective Measurement of the ...
  • 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 Measurement of Earthing Resistance ...Measurement of Single Earth Electrode Resistances in Mesh Operated Earthing Systems Using Selective Clamp Method ...3-pole/4-pole ...
  • 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
    ...2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Fluke 1625 Earth/Ground Tester...Description of Functions ...Display ...Operating Elements ...Display Elements ...Operational Modes ...Measurement of Interference Voltages and Frequencies...Earthing ...
  • 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 measures must be met in order to protect human life. In many cases, these safety measures are national and international regulations which must be checked ...
  • Fluke 1625 | FE 1625 Users Manual - Page 10
    ... 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 ... POLE ES/ P1 3 POLE OFF SELECT E /C1 edw001.eps Figure 1. Fluke 1625 Earth/Ground Tester 2
  • Fluke 1625 | FE 1625 Users Manual - Page 11
    ...and accessories. Table 1. Models and Accessories Description Earth Ground Tester - Basic (Includes manual, 2 leads and 2 clips) Earth ... Stake Cable Reel w/25m Wire Cable Reel w/50m Wire 1625 Users Manual Item/Part Number Fluke-1625 Fluke-1625 Kit Fluke-162x-7001 ES-162P3 ES-162P4 EI-1625 EI-162X ...
  • 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 with its technical data in compliance with the safety precautions and instructions set forth below. In addition, use of this equipment requires compliance with the ...
  • Fluke 1625 | FE 1625 Users Manual - Page 13
    Earth/Ground Tester Setup Qualified Staff Consists of persons familiar with the setting up,... on and off, disconnecting, earthing/grounding, labeling; training or instructions according to safety engineering... to operate please read these operating instructions carefully for safety reasons and in order...
  • Fluke 1625 | FE 1625 Users Manual - Page 14
    1625 Users Manual General Microprocessor controlled universal earth resistance meter with fully automated measuring frequency selection process as well ... of a single branch in mesh operated earthing systems is available as an option and enables the user to measure on high voltage pylons without ...
  • Fluke 1625 | FE 1625 Users Manual - Page 15
    ... been developed, designed and manufactured in compliance 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 Processor LCD driver Display Relais driver Rotary selector switch buttons edw003.eps Figure 2. Description of Functions Measurement of ...
  • 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 3- or ... 94, 105, 111 or 128 Hz. The frequency can be selected manually or automatically (AFC). Selective Measurement of Earthing Resistance (RE A) Measurement of a single ...
  • 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 drop in battery capacity down to typ. 10 % of its specified value is indicated on the display with symbol LO-BAT. Specifications General: Measuring function: ...
  • Fluke 1625 | FE 1625 Users Manual - Page 19
    Earth/Ground Tester Specifications Operation: Working temperature range: Operating temperature range: Nominal temperature range: Storage temperature range: ... temperature range C1 (IEC 654-1), -5 °C...+45 °C, 5 %...95 % RH IP 56 for case, IP 40 for battery door according to EN 60529 11 • •...
  • 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: Measuring Range 1...50 V Display Range 0.0...50 V fullwave rectification Resolution 0.1 V Frequency Range DC/AC 45...400 Hz sine Limits of Error ± (5% of reading +5 digit) Measuring ...
  • 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 1557 Part 5, 6.1 Part 1, 4.2 Intrinsic Error or Influence Quantity Intrinsic error Position Reference Conditions or Specified Operating Range Reference conditions ...
  • 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 test type test Measuring Range Display Range 0.001 Ω...2.999 Ω 3.00 Ω...29.99 Ω Resolution 0.001 Ω 0.01 Ω 0.1 Ω 1Ω 10 Ω 100 Ω Instrinsic Error Max...
  • 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 high. F 1000% 3000 1000 RH/RE= 300 100 % 100 30 10% 10 3 1% 1 0,3 0,1% 10 10 0 1k 10k 1 00k 1M RS edw005.eps Automatic switchover of measuring ...
  • Fluke 1625 | FE 1625 Users Manual - Page 25
    Earth/Ground Tester Specifications Selective Measurement of the Earthing Resistance (REA) Measuring method: Current and voltage measurement with probe as per EN61557-5 ... / 48 V AC 250 mA AC 94, 105, 111, 128 Hz selected manually or automatically (AFC), 55 Hz (R*) 120 dB (16 2/3 , 50 , 60...
  • 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 without...
  • 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
    ... 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 DC Low...
  • Fluke 1625 | FE 1625 Users Manual - Page 30
    1625 Users Manual D "CHANGE ITEM" button to change the set point entry values. E "SELECT" button to select the digit to be changed. F Display unit, liquid crystal digits, 18 mm high with automatic decimal point as well as active illumination. G Connecting socket H (auxiliary earth electrode) (4...
  • 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 display elements: 1. 2. 3. 4. Digital display of measured value Measuring function field to display measuring function Unit field: V, Ω, kΩ, Hz Special ...
  • 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-frequency-control Measuring sequence in process Limit value Limit value exceeded Socket recognition Recognition of current transformer socket Message ...
  • 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 possible to access certain operating conditions by pressing certain button combinations: a) Standard mode If the device is put into operation without ...
  • 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 ...29.99 Ω 80 ...1200 0.000 Ω ...999 kΩ On / Off selectable to 20 V with CODE in position RE 3pole only * display only only if activated with CODE only if RE LIMIT ...
  • 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 last measured value stays on the display. By repeated pressing of the "DISPLAY MENU" button all supplementary values can be called. If a measured value exceeds or falls ...
  • Fluke 1625 | FE 1625 Users Manual - Page 39
    Earth/Ground Tester Procedure of Measurements Safety Control Measurements Before each measurement the instrument automatically checks the measuring .... This function is automatically active in every switch position before an earthing or resistance measurement. If the pre-set limit values are ...
  • 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 3k RA R R 2 POLE 4 POLE 3 POLE 4 POLE CHANGE ITEM 2 POLE 4 POLE ES/P1 3 POLE OFF SELECT E /C1 Earth electrode Probe Auxiliary...
  • 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 with personalized ...
  • Fluke 1625 | FE 1625 Users Manual - Page 42
    1625 Users Manual 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth/Ground Resistance 300k AC Resistance 300 k DC Low Resistance 3k RA R R 2 POLE 4 POLE 3 POLE 4 POLE CHANGE ITEM 2 POLE 4 POLE ES/P1 4 pole E /C1 3 POLE OFF SELECT Earth electrode Probe ...
  • 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 same, the distance is sufficient. If the measured value changes, probe or auxiliary earth ...
  • Fluke 1625 | FE 1625 Users Manual - Page 44
    1625 Users Manual Measurement of Single Earth Electrode Resistances in Mesh Operated Earthing Systems Using Selective Clamp Method This measuring method has been created to measure single earth electrodes in permanently wired or mesh operated systems (e.g. lightning protection system with ...
  • Fluke 1625 | FE 1625 Users Manual - Page 45
    Earth/Ground Tester Procedure of Measurements Errors of the current transformer can be corrected as described in "Correcting Clip-on Transformer Error". 3-pole/4-pole Measurement of Single Earth Electrode Resistances See Figure 12. 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 ...
  • 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 Press "START TEST" button. Now a ... constant. Spikes wires should not run too close. 3-pole Measurement with Longer Earth Electrode Connecting Leads 1. 2. Use one of the accessory cable drums as ...
  • 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. 1. 2. Select a fixed frequency (see "Control loop", Operation) Keep the "START TEST" button pressed until the warning "measured value unstable" disappears. Max...
  • Fluke 1625 | FE 1625 Users Manual - Page 48
    ... 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 S/P2 Earth/Ground Resistance 300 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 49
    Earth/Ground Tester Procedure of Measurements 3. Press "START TEST" button Now a fully automated test sequence of all relevant parameters like auxiliary earth electrode, probe- and earth electrode resistance, is implemented and finishes with the display of the result RE. 4. 5. Read out measured...
  • Fluke 1625 | FE 1625 Users Manual - Page 50
    1625 Users Manual Time average measurement: If there is a warning "measured value unstable" (see "Description of ... electrode (ohmic): Measuring process: The measurement of the earthing impedance (R*) is only possible if it is activated by putting in a personalized user's code (see "Change of ...
  • 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...". Press "START TEST"-button and note result of RE value. Connect clip-on transformer. 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth/...
  • Fluke 1625 | FE 1625 Users Manual - Page 52
    1625 Users Manual Example: Your clip-on transformer has a transformation ratio of tr = 1000:1. The measurement ... 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 DISPLAY MENU S/P2 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 53
    Earth/Ground Tester Procedure of Measurements 3. 4. Call display RK with "DISPLAY MENU" button. Implement compensation with "START... resistivity; Bull. National Bureau of Standards, Bulletin 12 (4), Paper 258, S 478496; 1915/16). 1625 EARTH / GROUND TESTER START TEST H/C2 DISPLAY MENU S/P2 Earth...
  • Fluke 1625 | FE 1625 Users Manual - Page 54
    1625 Users Manual 1. Four earth spikes of the same length are positioned into the soil in an even line and with the same distance "a" to each other. The earth spikes should not be hammered in deeper than a maximum of 1/3 of "a". Turn central rotary switch to position "RE 4pole". The instrument...
  • 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 deeper than A does not improve the ...
  • Fluke 1625 | FE 1625 Users Manual - Page 56
    ... measurements of very low resistances a compensation of the connecting leads is suggested (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
    ... per EN61557-5. To achieve highest accuracy 4 pole measurements are possible. To balance 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 DC...
  • 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
    Earth/Ground Tester Procedure of Measurements Turning the central rotary switch for 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 ...
  • 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 ...shows "C OFF". If this display is acknowledged by pressing the "DISPLAY MENU" key, the user code and all changes of the limit values are erased. The original ...
  • 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 measuring functions are locked. Select correct position. ST V LIMIT Before "START" Rotary switch in intermediate position edw033.eps After "START" S TEST edw034...
  • Fluke 1625 | FE 1625 Users Manual - Page 65
    Earth/Ground Tester Description of Displays Function Displays Condition Measuring circuit of earth- and auxil. earth electrode disconnected. ...of earth- and probe electrode disconnected. Note Check lead connection on earth spikes measuring lead might be defective. Check lead connection on ...
  • 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 qualified staff. In all repair work care must be taken that the design parameters of the instrument are not ...
  • 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. To maintain it in this state, we recommend a check at 1-year intervals. Please contact the nearest sales or service center for this purpose. As an extra service feature we ...
  • Fluke 1625 | FE 1625 Users Manual - Page 71
    ...Resistance Testing Care and Maintenance Appendix A Stakeless Earth/Ground Resistance Testing Introduction Stakeless testing provides the ground tester with ...ground resistance testing eliminates these problems and ideally complements the ground testers' standard testing methods...
  • 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 contained in this section exclusively refers to this application. Principle: Ground testing without using earth stakes for the probe and ...
  • Fluke 1625 | FE 1625 Users Manual - Page 73
    Stakeless Earth/Ground Resistance Testing Principle of Operation Dimensions Operating error*: Display range*: Measuring frequency:...distance between CT's: 10 cm. Principle of Operation Purpose Testing the resistances of individual ground connections in systems with parallel ground connections (multi-...
  • 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
    1625 Users Manual Operation Connect the adapter according to the diagram and the designations E, S and H (C1, P1 and P2 for US-version) to the tester and to a current clamp. 1625 EARTH / GROUND TESTER H H/C2 START TEST S S/P2 DISPLAY MENU Black EI-162AC E Earth/...
  • Fluke 1625 | FE 1625 Users Manual - Page 77
    Stakeless Earth/Ground Resistance Testing Principle of Operation Erder >10 cm edw064.eps Pushing the START-...this particular mode the values of RH and RS have no meaning. Settings on the Tester Refer to the Operation section in the Testers instruction manual. The rotary switch of the tester must ...
  • Fluke 1625 | FE 1625 Users Manual - Page 78
    1625 Users Manual Applications Example1: Ground rod on power poles. edw065.eps Example 2: Tests on multi-grounded (inter-connected) systems: Ground conductors are for example bonded to grids or concrete-footing grounds and other conducting elements such as lightning protection systems or ...
  • 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 ... for below meas- next test uring range or adapter cable is plugged into ground tester incorrectly edw068.eps Legend: W= displayed flashing 72
  • 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
    ... measurement of the dissipation resistance is necessary to determine the exact earthing conditions for protective measures. As the dissipation resistance is... and the condition of the soil is well known. For redimensioning of an earthing system, e.g. a lightning protection, an approximate calculation,...
  • 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 surfaces of a cube of homogenous soil ... changes. Dry soil has a higher resistivity than moist soil and frozen ground has a higher resistivity than dry, warm sand (see picture). The two ...
  • 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 diagram circuit shown in the figure below. G I E ES U meas. V S I H E S RS H RE UE RH edw057.eps An AC generator G feeds current I via earth electrode E (earth electrode resistance RE) and ...
  • 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 off the true voltage drop from the ... of probes S1 and S2 deliver a value too low, which also means that the earthing resistance appears to be lower than it actually is(low resistance). Probe S 4 ...
  • Fluke 1625 | FE 1625 Users Manual - Page 89
    ... via the overhead earth wire. This wire is not only ohmic. There is also inductivity and ... dependent. Accordingly, the measuring frequency applied by the tester has to be close to the mains frequency in order to get correct readings. For that reason ordinary testers using frequencies between 70 Hz ...
  • Fluke 1625 | FE 1625 Users Manual - Page 90
    1625 Users Manual 82



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