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Users Manual - TRS RenTelco

1. The effectiveness of grounding systems should be checked using a earth ground tester such as the 1625 2 which checks the effectiveness of connections to the ground The 1625 2 provides the perfect solution by combining the latest technology into a compact field rugged instrument In addition to performing standard 3 pole and 4 pole ground resistance measurements an innovative process accurately measures individual earth electrode resistances in single and meshed earthed systems without disconnecting any parallel electrodes One specific application of this capability is quick and accurate measurement of power pylon grounds The 1625 2 has automatic frequency control AFC to minimize interference Before measuring the instrument identifies existing interference and selects a measurement frequency to minimize its effect Notes e The terms earth and earthing also refer to ground and grounding and is used interchangeably throughout this manual e For stakeless earth resistance measurements the Selective Stakeless Clamp Set El 1623 must be purchased The1625 2 Kit includes this clamp set e Selective measurements are described in the main section of this manual How to Contact Fluke To contact Fluke use one of these telephone numbers e USA 1 800 760 4523 e Canada 1 800 36 FLUKE 1 800 363 5853 e Europe 31 402 675 200 e Japan 81 3 6714 3114 e Singapore 65 6799 5566 e Anywhere in the world 1 425 446 5500 Or visit
2. A Warning For safe operation of the Product e Repair the Product before use if the battery leaks e Be sure that the battery polarity is correct to prevent battery leakage 14 Earth Ground Tester Setup Description of Functions The functions are selected with the central rotary switch Four push buttons start measurements read out supplementary measurement values and select special functions See Table 6 for more information Measurement values are shown on a liquid crystal display with units Additional special characters indicate measurement mode operating condition and error messages The Tester includes these measurement functions e Interference Voltage Ust Fullwave rectification for dc and ac If limit values are exceeded no measurement will be started e Interference Frequency Fst For interference voltage gt 1 V its frequency is derived from the period time e Earthing Resistance Re The earthing resistance is determined by a 3 pole or 4 pole current and voltage measurement The measuring voltage is a square pulse ac voltage with 48 20 V and a frequency of 94 105 111 or 128 Hz The frequency can be selected manually or automatically AFC 55 Hz in function R e Selective Measurement of Measurement of a single earth electrode in a mesh Earthing Re DC operated parallel earthing system The current flowing through the single earth electrode is measured with an external current transformer e
3. type LR6 batteries e 2 measuring leads 1 5m e 1 connector cable for RA 2 pole measurements e 2 alligator clips e 1 Documentation CD with Users Manual e Quick Reference Guide e Safety Information Table 2 is a list of the models and accessories Table 2 Models and Accessories Description Part Number 1625 2 Earth Ground Tester Includes Users Manual Safety Information QRG Geox Probe Cable 2 clips Lead set 4325162 1625 2 Kit Earth Ground Tester Kit Includes Users Manual Safety Information QRG Geox Probe Cable 2 clips Lead set 4 Earth Stakes 3 Cable Reels C1620 Carrying Case El 162X El 162AC 4325181 162x 7001 Service Replacement Kit Includes Lead set amp 2 clips 2577167 Earth Stake 4325492 ES 162P3 2 Stake Set for 3 Pole Measurement Includes 3 Earth Stakes 1 Cable Reel 25M Blue 1 Cable Reel 50M Red 4359377 ES 162P4 2 Stake Set for 4 Pole Measurement Includes 4 Earth Stakes 1 Cable Reel 25M Blue 1 Cable Reel 25M Green 1 Cable Reel 50M Red 4359389 El 1623 Selective Stakeless Clamp Set for 1623 2 1625 2 Includes El 162X El 162AC 2577115 El 162X Clip on Current Transformer sensing with shielded cable set 2577132 El 162AC Clip on Current Transformer inducing 2577144 EI 162BN Split Core Transformer for Pylon Testing 12 7 inch 320 mm 2577159 Shielded Cable Used w El 162X Clamp 2630254 Cable Reel 25M Blue wire 4343731 Cable R
4. 1625 2 Earth Ground Tester Users Manual January 2014 2014 Fluke Corporation All rights reserved Specifications are subject to change without notice All product names are trademarks of their respective companies LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service The warranty period is two years and begins on the date of shipment Parts product repairs and services are warranted for 90 days This warranty extends only to the original buyer or end user customer of a Fluke authorized reseller and does not apply to fuses disposable batteries or to any product which in Fluke s opinion has been misused altered neglected contaminated or damaged by accident or abnormal conditions of operation or handling Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non defective media Fluke does not warrant that software will be error free or operate without interruption Fluke authorized resellers shall extend this warranty on new and unused products to end user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price Fluke reserves the ri
5. C 32 F to 95 F 30 C to 60 C 22 F to 140 F 0 1 of rdg C below 18 C and above 28 C lt 95 RH non condensing 2000 m C1 IEC 654 1 5 C to 45 C 5 to 95 RH IP56 IP40 Complies with IEC61326 1 Portable Complies with IEC 61010 1 CAT None Pollution Degree 2 6 seconds typical 250 Vms in association with misuse 6 x 1 5v AA LR6 Alkaline gt 3000 measurements typical RH RE lt 1 kOhm gt 6000 measurements typical RH RE gt 10 kOhm 240 mm x 180 mm x 110 mm 9 5 in x 7 1 in x 4 4 in 1 52 kg 3 35 Ib Internal memory storage up to 1500 records accessible via USB port Interference Voltage DC AC Ust Measurement fullwave rectification Measuring Display Range Range 1 50 V 0 0 50 V Resolution 0 1 V DC AC 45 400 Hz sine Frequency Range Accuracy 5 of rdg 5 digit Measuring sequence Internal resistance Maximum overload approximately 4 measurements s approximately 1 5 MQ Urms 250 V Earth Ground Tester Specifications Interference Frequency Fst Measurement Measuring method Measurement of oscillation period of the interference voltage Measuring Tao He 16 0 2900 000 He ith ag 2 dg 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
6. Power On Functions At power on of the instrument with the central rotary switch it is possible to access certain operating conditions by pressing specific button combinations a Standard mode If the device is put into operation without further button control it switches into a battery saving condition Stand by display approximately 50 seconds after the termination of a measurement or after a button push or turn of the rotary switch Pressing the DISPLAY MENU reactivates the instrument the old measured values can be read out again After 50 min of stand by the Display is turned off completely Instrument is reactivated with ON OFF on the rotary switch b Stand by disable A simultaneous push of buttons DISPLAY MENU and CHANGE ITEM at power on prevents the instrument from being switched off automatically Stand by The battery saving mode is reactivated with ON OFF on the central rotary switch 16 Earth Ground Tester Advanced Operation c Prolonged display test By keeping the DISPLAY MENU button pressed during power on the display test can be prolonged for any length of time Return to the standard operation mode by pressing any button or turning of the central rotary switch d Number of software version By keeping the SELECT button pressed during the power on sequence the software version is indicated on the display By pressing the DISPLAY MENU button a switch over to the last calibration da
7. Earthing Resistances Measurement rrrnnannnnvvnnnnnnrrnnnonnrrnnnnnnnrrnnnnnnnnr 3 Pole 4 Pole Measurement of Earthing Resistance Process 0 ceeeee Measurement of Single Earth Electrode Resistances in Mesh Operated Earthing Systems sessies iiin ai cdi denen S 3 Pole 4 Pole Measurement of Single Earth Electrode Resistances 006 Earthing Resistance without Disengaging the Overhead Earth Wire 0 Correcting Clip on Transformer Errors ccccccceeeeeeeeeeeneeeeeeeeeeeeeeeeeeeseeaeeeeeeeaeens Clip on Transformer Connection ccccceceeeeeeeeceeceeeeeeeeececeaeeeeeeeeesecseceeeeeeeeetens Compensation of Earth Electrode Connecting Lead mmnsvvnnvrvvvvnnvrvvrvnnnrrvvnnenn Measurement of Soil Resistivity rrnnrannrrnnnonnrrnnnnnnrrnnnennrrnnnnensrrnnsennrrensersrrensernr Resistance Measurement R cccceccceeceeceeeeeseaeeeeeeeseeeesaaeeeseeeeseeeeseaeeeseeeeees Resistance Measurement R5 ccccsesceceeececeeeeeaeeeeeeeecaeeeseaeseeneeseueeessaneesenees Compensation of Measuring Lead Resistance rnnansnnnnnnnvvvvnnnrvrrvnnnnrnrrnnnnrsrnnnenn 1625 2 Users Manual vi Introduction The 1625 2 Earth Ground Tester Tester or Product is a compact field rugged instrument that performs all four types of earth ground measurement Specifically the Tester is able to measure earth ground loop resistances using only clamps called Stakeless testing Th
8. Resistance R The resistance is determined by a 2 pole current and voltage measurement The measuring voltage is a square pulse ac voltage with 20 V and a frequency of 94 105 111 or 128 Hz The frequency can be selected manually or automatically AFC e Low Resistance R The resistance is determined by dc current and voltage measurement 2 pole as well as 4 pole measurement is possible The short circuit current is gt 200 mA The resistance of both current directions is measured and stored e Checking for Correct The Tester checks if the measuring lead is properly Measurement Connection connected according to the selected function via isolated two piece contacts inside of each 4 mm banana input socket in combination with detection circuitry A wrong or missing connection is indicated by an optical and acoustical signal e Beeper The built in beeper has two functions e Send message if set limit values are exceeded e Indicates dangerous condition or faulty operation e Battery Level Indicator A 4 segment battery level indicator shows the battery status 15 1625 2 Users Manual Operation AA Warning To prevent possible electrical shock fire or personal injury use the instrument on voltage free systems only Set measuring function with the central rotary switch Connect the measurement leads to the instrument Start measurement with START TEST button Read out measured value PONS Advanced Operation
9. code and all changes of the limit values are erased The original default values are restored into memory 6 Nowanew CODE number may be programmed and used for setting new parameters Export Stored Data to PC Test data is automatically stored for all tests as a csv file Table 8 continued on page 40 is an example of the csv file To export data from the Tester to a PC 1 Connect the USB cable from the Tester to the PC Use Windows Explorer on the PC to find new EGT drive in the Devices list 2 3 Locate the Data csv file on the EGT drive 4 Use the standard PC tools to copy the file to a new location Table 8 Sample CSV File for Logged Data Measurement Mode Measurement Voltage Um 15th Oct 2013 20 13 55 48 V 15th Oct 2013 20 15 55 48 V 15th Oct 2013 20 17 15 48 V 15th Oct 2013 20 21 10 20V 15th Oct 2013 20 23 25 48 V 15th Oct 2013 20 24 48 48 V 10th Nov 2013 20 24 48 4 pole Re 4 pole Selective 48 V gt E D b 5 a 10th Nov 2013 20 28 48 48 V Measurement Frequency Fm Interference Voltage Ust 39 1625 2 Users Manual 40 Table 8 Sample CSV File for Logged Data cont Interference Frequency Fst Interference Impedance 55 Hz R Earth Ground Resistance Re AC Resistance DC Resistance oor wa fm free ma r r N N N N N NA A A A A A Ratio Error Status Probe Resistance Rs Auxilliary Resistance Rh Compensation R
10. frequency Fsr e Measurement of probe resistance Rs e Measurement of auxiliary earth electrode resistance Ry e Measurement of earthing resistance 3 pole 4 pole Re with or without using the external clip on current transformer for selective measurement of single earthing branches in mesh operated earthing systems SC e Resistance measurement 2 pole with ac voltage R e Resistance measurement with dc voltage 2 pole 4 pole R With its various possibilities of measurement and the fully automated measuring sequence control incl automatic frequency control AFC this instrument offers the latest measuring technology in the field of earthing resistance measurements By means of the selectable limit input with visual and acoustical confirmation error message and with the code programmable and customer defined special functions such as measuring voltage 20 V for agricultural systems earthing impedance R measuring frequency 55 Hz switched on or off these instruments are individually programmable for use as a simple meter as well as a high end fully automated measuring device The Tester includes automatic testing of probe auxiliary earth electrode resistances and possible interference voltages See Table 3 for a list of features and functions AA Warning e No voltage permissible to sockets OGOG e Do not open or close the instrument with force e Disconnect all leads before opening the instrument 1625 2 Users Ma
11. get reliable values the instrument offers the possibility of averaging over a longer period 1 Select a fixed frequency see Control Loop 2 Keep the START TEST button pressed until the warning measured value unstable disappears Maximum averaging time is approximately 1 minute Earth Ground Tester Advanced Operation 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 for example a lightning protection system with several electrodes or high voltage pylons with earth cabling By measuring the actual current flow through the earth electrode this special measuring method provides the unique possibility to measure selectively only this particular resistance by means of a clip on transformer accessory See Figure 5 Other parallel resistances applied are not taken into account and do not distort the measuring result A disconnection of the earth electrode before the measurement is therefore no longer necessary Aux Earth gt Electrode edw014 eps Figure 5 Measurement of Single Earth Electrode Resistances in Mesh Operated Earthing Systems Errors of the current transformer can be corrected as described in Clip On Transformer Errors Correction 23 1625 2 Users Manual 3 Pole 4 Pole Measurement of Single Earth Electrode Resistan
12. is START exceeded higher than 300 kQ R G eo edw040 eps SLIMIT gt LIMIT A edw041 eps Display of measured value exceeds LIMIT Measured value is higher than set LIMIT 11 1625 2 Users Manual Table 5 Display Descriptions cont Function Displays Condition Note Compensation higher Delete compensation R than measured value or switch instrument N 0 ON OFF K m te amt OG Sidera Wrong polarity on Reverse polarity Lye FI jacks E and ES UU OG A edw043 eps Measured value Unsteady noise R unstable voltage Try time NE 0 average measurement E Ae Ao dd s Current in external Reduce auxiliary Js N m V transformer too low current spike m ist LIL resistance tt oC ariw04s aps Operation under faulty Check batteries conditions Switch ON OFF if still No reactions to button faulty contact service control etc edw046 eps After Reverse orientation of Reverse clamp START current clamp or edw047 eps upwards current edw048 eps Checksum of EE PROM incorrect 12 Earth Ground Tester Setup Table 5 Display Descriptions cont Function Displays EP edw049 eps Condition Hardware malfunction for example current overload Note Switch ON OFF if still faulty The symbol may appear when using the st
13. 027 eps No or incorrect Apart from voltage Js FI nN V measuring lead measurement all LJ LJ connection measuring functions are a oe locked 8 OOO edw028 eps Beeper on Acoustical warning if limit is exceeded Jr edw030 eps Dangerous ac voltage Except a voltage V gt 50 V measurement all F measuring functions are E locked gt LIMIT A edw031 eps After Probe resistance is Wait for test result START R A being tested N E E E TEST edw034 eps 10 Earth Ground Tester Display Table 5 Display Descriptions cont Function Displays Condition Note Aux current spike Wait for test result R resistance is being tested H E n TEST rere Earth resistance is Wait for test result R being tested N E E E E TEST rs Measuring circuit of Check lead connection Je mM mM V earth and on earth spikes LJ LJ auxiliary earth measuring lead might E A electrode be defective disconnected me N Measuring circuit of Check lead connection Je N N V earth and probe on earth spikes LJ LJ electrode measuring lead might F te disconnected be defective iniae Maximum allowable Try to moisten soil or R a error exceeded connect 2nd aux earth N i f f kO because of too high spike in parallel z sense or aux earth gt LIMIT A Bm spike resistance edw039 eps After Measuring range Measured value
14. Fluke s website at www fluke com Go to www fluke com to register your product download manuals and find more information To view print or download the latest manual supplement visit http us fluke com usen support manuals Earth Ground Tester Safety Information Safety Information A Warning identifies hazardous conditions and procedures that are dangerous to the user A Caution identifies conditions and procedures that can cause damage to the Product or the equipment under test AA Warning To prevent possible electrical shock fire or personal injury Read all safety information before you use the Product Use the Product only as specified or the protection supplied by the Product can be compromised Do not use the Product if it operates incorrectly Do not use the Product if it is damaged Do not use test leads if they are damaged Examine the test leads for damaged insulation exposed metal or if the wear indicator shows Check test lead continuity Do not use the Product around explosive gas vapor or in damp or wet environments Do not apply more than the rated voltage between the terminals or between each terminal and earth ground Use only current probes test leads and adapters supplied with the Product Do not use a current measurement as an indication that a circuit is safe to touch A voltage measurement is necessary to know if a circuit is hazardous The battery door must be closed and lo
15. INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA ARISING FROM ANY CAUSE OR THEORY Since some countries or states do not allow limitation of the term of an implied warranty or exclusion or limitation of incidental or consequential damages the limitations and exclusions of this warranty may not apply to every buyer If any provision of this Warranty is held invalid or unenforceable by a court or other decision maker of competent jurisdiction such holding will not affect the validity or enforceability of any other provision Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 98206 9090 5602 BD Eindhoven U S A The Netherlands 11 99 To register your product online visit register fluke com Table of Contents Introduetbnunnsgersksaaaasnksanabakaaganudadenaddveaadedns How to Contact Fluke rrrrsnrvnrrannnrovnrvnrrnnnnnrarevnernnrunnnansvernnrannnsnssernnrrnnsnnsenesnene safety Information nasu nm addemisikdnnevideaninnlevndemnnineniisise e E TORE E E E E Aar Models and Accessories ccccccceceaeesseseeeeeeanessseceeeeeceaaeaeneeeeeeeeaneaseeeeeeeeeanas Description of Functions musa dren aaa a er n Ei Operation suaduusaranvunk rakte coodee tan a aane Ge aea a aa eaaa Advanced Operation ssnin an a E EAE REEE aY Power On Fu
16. Lead If the line resistance to the earth electrode cannot be ignored a compensation of the connecting lead resistance to the earth electrode is possible Measuring process Auxiliary Earth earth electrode electrode edw019 eps Figure 10 Compensation of Earth Electrode Connecting Lead To do a compensation 1 2 3 4 Turn central rotary switch to position Re 3pole Wire instrument as shown in Figure 10 Call display Rx with DISPLAY MENU button Implement compensation with START TEST button The compensation resistance is displayed only for as long as the START TEST button is kept pressed After releasing the START TEST button the measured value is stored and the measuring instrument returns to the standard settings at the beginning of the measurement so that a succeeding measurement of the earthing resistance can be implemented by pressing START TEST again Thereafter Rx is subtracted from the actual measured value If the compensation value has to be reset to the basic setting 0 000 Q the compensation sequence has to be implemented with an open disconnected measuring lead or turn the switch to the next position and back 31 1625 2 Users Manual Measurement of Soil Resistivity The soil resistivity is the geological and physical quantity for calculation and design of earthing systems The measuring procedure shown in Figure 11 uses the method developed by Wenner F Wenner A method of measurin
17. ODE has been entered all subsequently programmed values can only be changed after entering the CODE number Once a CODE has been entered it cannot be erased or changed unless it is known Be sure to record your personal CODE and store in a safe location Inputting the code is done by means of the CHANGE ITEM and SELECT keys Pressing the DISPLAY MENU key completes input The CODE is now stored and the display shows C ON If the display C ON is acknowledged by pressing DISPLAY MENU the first parameter of the selected measuring function is displayed and can be changed with the CHANGE ITEM and SELECT keys a The changed value is stored by pressing the DISPLAY MENU key b 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 To delete a code 1 Press all 4 keys simultaneously and move central selector from OFF to any measuring mode The display shows C ___ Now enter the existing CODE number Inputting the code is done by means of the CHANGE ITEM and SELECT keys Pressing the DISPLAY MENU key completes input Earth Ground Tester Export Stored Data to PC 4 Display shows C ON In the C ON state the CODE function can be disabled by pressing the CHANGE ITEM key The display then shows C OFF 5 If this display is acknowledged by pressing the DISPLAY MENU key the user
18. akeless measurement on low resistance circuits F4 edw050 eps EE PROM memory access malfunction Contact service E4 edw051 eps Internal computation malfunction EES edw052 eps Thermal overload Cool thoroughly A flashes on display Setup Batteries Note Rechargeable batteries may be used but must be charged outside of the instrument The number of measurements available with these cells will typically be different to those available using alkaline cells This Tester is equipped with six 1 5 V batteries IEC LR6 type AA Replace or recharge the batteries if the battery indicator shows 1 or 0 bars To insert the batteries C1 PS Switch off instrument see Figure 2 Disconnect all test leads Open battery compartment Insert batteries Always replace the complete set of batteries Close battery compartment 13 1625 2 Users Manual 1625 2 ADVANCED EARTH GROUND TESTER GEO edw070 eps Figure 2 Battery Insertion AA Warning To prevent possible electrical shock fire or personal injury e The battery door must be closed and locked before you operate the Product e Replace the batteries when the low battery indicator shows to prevent incorrect measurements e Batteries contain hazardous chemicals that can cause burns or explode If exposure to chemicals occurs clean with water and get medical aid
19. ance R a measurement with a frequency close to the mains frequency 55 Hz is carried out At the activation of R through user s code this measuring frequency is activated automatically To keep the instrument as simple as possible at the time of delivery all special functions such as LIMIT input BEEPER programming and measurement of earthing impedance R are not activated at delivery They can be activated with personalized user s code see How to Change All Data Settings with Personalized CODE edw011 eps Figure 3 Method for Earthing Resistances Measurement Earth Ground Tester Advanced Operation 3 Pole 4 Pole Measurement of Earthing Resistance This measuring function measures earthing and earth dissipation resistances of single earth electrodes foundation earth electrodes and other earthing systems by using two earth spikes See Figure 4 Auxiliary earth Earth electrode F electrode edw012 eps Figure 4 3 Pole 4 Pole Measurement of Earthing Resistance Process 1 Turn central rotary switch to position Re 3pole or Re 4pole The instrument is to be wired according to picture and notices given on the display A flashing of the sockets symbols OGGE or JC points to an incorrect or incomplete connection of the measuring lead 2 Press START TEST button Now a fully automated test sequence of all relevant parameters like auxiliary earth electrod
20. ce of gt 20 m between the earth electrode and the earth spikes as well as to the earth spikes to each other An accuracy test of the results is made by 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 electrode must be repositioned until the measured value RE stays constant Spikes wires should not run too close 3 pole Measurement with Longer Earth Electrode Connecting Leads 1 Use one of the accessory cable drums as earth electrode connecting lead 2 Spool off cable completely and compensate line resistance as described in Compensation of Earth Electrode Connecting Lead Time Average Measurement If there is a warning MEASURED VALUE UNSTABLE see Table 5 after a test sequence most likely it is caused by strong interference signals for example unsteady noise voltage To get reliable values the instrument offers the possibility of averaging over a longer period 1 Select a fixed frequency see Control Loop 2 Keep the START TEST button pressed until the warning MEASURED VALUE UNSTABLE disappears Maximum averaging time is approximately 1 minute 25 1625 2 Users Manual Measurements on High Voltage Pylons Measuring the Earthing Resistance without Disengaging the Overhead Earth Wire Using the Selective Clamp Method The measurement of the earth resistance of a sing
21. ces Turn central rotary switch to position BC RE 3pole or SC RE 4pole The instrument is to be wired according to Figure 6 and messages on the display 1625 2 ADVANCED EARTH GROUND TESTER GEO Resista DC 301 nce 0k Resistance 3k0 edw015 eps Figure 6 3 Pole 4 Pole Measurement of Single Earth Electrode Resistances A flashing of the sockets symbols OGGE or SC points to an incorrect or incomplete connection of the measuring lead Fix clip on transformer around the earth electrode to be measured Make sure that the clip on transformation ratio set on the instrument corresponds to the clip on transformer used Change settings if necessary see How to Change All Data Settings with Personalized Code Note The ratio that is preset from factory is correct for the EI162X sensing clamp 24 Earth Ground Tester Advanced Operation Press START TEST button Now a fully automated test sequence of all relevant parameters like auxiliary earth electrode and probe and earth electrode resistance is implemented and finished with the display of the result Re 1 Read out measured value Re 2 Call Rs and Ry with DISPLAY MENU Remarks for the Setting of Earth Spikes Before setting the earth spikes for probe and auxiliary earth electrode make sure that the probe is set outside the potential gradient of earth electrode and auxiliary earth electrode Such a condition is normally reached by allowing a distan
22. cked before you operate the Product Replace the batteries when the low battery indicator shows to prevent incorrect measurements Do not connect directly to mains Do not touch voltages gt 30 V ac rms 42 V ac peak or 60 V dc 1625 2 Users Manual Table 1 is a list of symbols used on the Tester and in this manual Table 1 Symbols Symbol Description Risk of Danger Important information See Manual Hazardous voltage Risk of electrical shock A A Battery Indicator C Conforms to European Union directives Conforms to relevant South Korean EMC Standards Ie LON Conforms to relevant Australian EMC requirements Be This product complies with the WEEE Directive 2002 96 EC marking requirements The affixed label indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE Directive Annex I this product is classed as category 9 Monitoring and Control Instrumentation product Do not dispose of this product as unsorted municipal waste Go to Fluke s website for recycling information Storage If the Tester is stored for an extended period of time or is not in use for a long time you should remove the batteries Earth Ground Tester Models and Accessories Models and Accessories These standard accessories were shipped with your Tester e 6alkaline AA
23. e and probe and earth electrode resistance is implemented and finished with the display of the result Re 3 Read out measured value Re 4 Call Rs and Ry with DISPLAY MENU 21 1625 2 Users Manual 22 Remarks for the setting of earth spikes Before setting the earth spikes for probe and auxiliary earth electrode make sure that the probe is set outside the potential gradient area of earth electrode and auxiliary earth electrode Such a condition is normally reached by allowing a distance of gt 20 m between the earth electrode and the earth spikes as well as of the earth spikes to each other 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 electrode must be repositioned until the measured value Re stays constant Spike wires should not run too close to each other 3 pole measurement with longer earth electrode connecting leads Use one of the accessory cable drums as earth electrode connecting lead Spool off cable completely and compensate line resistance as described in Compensation of Earth Electrode Connecting Lead Time average measurement If there is a warning MEASURED VALUE UNSTABLE see Table 5 after a test sequence most likely it is caused by strong interference signals such as unsteady noise voltage Nevertheless to
24. earth electrodes make sure that the probe is set outside the potential gradient of earth electrode and auxiliary earth electrode Such a condition is normally reached by allowing a distance of gt 20 m between the earth electrode and the earth spikes as well as to the earth spikes to each other An accuracy test of the results is made with another measurement after repositioning of auxiliary earth electrode or probe If the result is the same the distance is sufficient If the measured value changes probe or auxiliary earth electrode must be repositioned until the measured value Re remains constant Spike wires should not run too close 1 Apply current transformer to next pylon stub 2 Repeat measuring sequence Current feeding point of measuring current alligator clip and the polarity of the split core current transformer has to be left unchanged After values of Re for each pylon foot are determined the actual earth resistance Re is calculated Note If the displayed Re value is negative despite correct orientation of the current transformer a part of the measuring current is flowing upwards into the tower body The earthing resistance thus coming into effect correctly calculates if the individual equivalent resistances under observation of their polarity are inserted into the equation above Time average measurement If there is a warning MEASURED VALUE UNSTABLE see Table 5 after a test sequence most likely it is caus
25. ed by strong interference signals such as unsteady noise voltage For reliable values the instrument offers averaging over a longer period 1 Select a fixed frequency see Control Loop 2 Keep the START TEST button pressed until the warning MEASURED VALUE UNSTABLE disappears Maximum averaging time is approximately 1 minute Earth Ground Tester Advanced Operation Measuring Earthing Impedance with 55 Hz R For the calculation of short circuit currents in power supply plants the complex earthing impedance is important Direct measurement is possible under the following conditions Phase angle at 50 Hz 30 60 inductive Auxiliary earth electrode ohmic gt 100 Ze 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 Setup Data with Personalized Code If this measuring function is activated in every measurement of the four Re positions the earthing impedance R is displayed before all other measured values Clip On Transformer Errors Correction If the measurement of an earthing resistance by means of a clip on transformer results in a significantly different value as if measured without the clip on the deviation may be due to the tolerances of the clip on current transformer This error can be corrected by fine tuning the clip on transformation ratio basic settings 1000 1 This correction applies to the t
26. eel 25M Green wire 4343746 Cable Reel 50M Red wire 4343754 C1620 Carrying Case 4359042 1625 2 Users Manual Additional Accessories An external current transformer is available as an option see Figure 1 The transformer has a transformation ratio between 80 and 1200 1 for the measurement of a single branch in mesh operated earthing systems This enables the user to measure on high voltage pylons without separating the overhead earth wires or earth strips at the bottom of the pylons It is also used to measure lightning protection systems without separating the individual lightning protection wires evx01 eps Figure 1 External Current Transformer El 162BN Transformer half 2 Transformer end faces have bolts that pivot to aid in separating the Transformer halves One Transformer end face has a slotted bolt hole that allows the bolt to pivot out of the end face Transformation ratio connections 1 200 500 and 1000 Fastener 2 OG Earth Ground Tester Features Features The 1625 2 Earth Ground Tester Tester is an earth resistance meter with fully automated measuring frequency selection process The Tester includes automatic testing of probe and auxiliary earth electrode resistances and possible interference voltages in accordance with DIN IEC61557 5 EN61557 5 e Measurement of interference voltage Usr e Measurement of interference
27. esistance Rk Transformer Oo oO x x re re ols oO 1s o x x re re za zZ lt i i zZ i i oO Zz i Zz i lt lt i Zz i E amp H open Reverse clamp Zz i Zz i Zz d Zz a i oO oO Delete Stored Data To delete stored data in the Tester 1 Connect the USB cable from the Tester to the PC 2 Use Windows Explorer on the PC to find new EGT drive in the Devices list 3 Locate the Data csv file on the EGT drive 4 Use the standard PC tools to delete the file from the EGT drive or move the file to a new location This action removes all stored date from the Tester Earth Ground Tester Maintenance Maintenance If used and treated properly the instrument needs no maintenance To clean the instrument use only a moist cloth with some soap water or soft household detergent or spirit Avoid aggressive cleaning agents and solvents such as trilene or chlorothene 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 modified to the detriment of safety that assembled parts correspond to the original spares and that they are reassembled properly factory state AA Warning To prevent possible electrical shock fire or personal injury e Use only specified replacement parts e Have an approved technician repair the Product e The battery door must be closed and locked befo
28. ete cycle of all measuring frequencies Additional error because of probe R R 2000Q H S and auxiliary earth electrode x1 25x10 Sdigits resistance R Measuring error of RH and RS typical 10 of R R Ry Maximum probe resistance lt 1MQ Maximum auxiliary earth electrode resistance lt 1MQ 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 Ry are too high Ri with Umeaa 48 V Ra with Umeas 20 V lt 60 kQ lt 25 kQ 100 MQ Earth Ground Tester Specifications Selective Measurement of the Earthing Resistance R 2C Measuring method Open circuit voltage Short circuit current Measuring frequency Noise rejection Maximum overload Current and voltage measurement with probe as per EN61557 5 and current measurement in the individual branch with additional current transformer 20 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 60 400 Hz maximum Urms 250 V Measuring Display Resolution Accuracy Operating Error Range Range 0 001 2 999 Q 0 001 Q 3 00 29 99 Q 0 01 Q 0 020 2 30kQ 30 0 299 9 Q 7 of rdg 2 digit 10 of rdg 5 digit 0 300 2 999 kQ 3 00 29 99 kQ 1 With recommended current c
29. four resistances have to be measured which show a behavior inversely proportional to the corresponding current components I 14 The feeding point of the measuring current is to be left unchanged to avoid a change in the current distribution Accordingly these equivalent resistances are displayed as U Re mens li Therefore the earthing resistance Re of the pylon is determined as a parallel circuit of the individual equivalent resistances 1 1 1 1 1 Rr Reo Rr Reg R 1 Turn central rotary switch to position SCR 3pole or SCR 4pole The instrument is wired according Figure 7 and messages on the display A flashing of the sockets symbols OGOGO or QIC points to an incorrect or incomplete connection of the measuring lead 2 Apply current transformer to the pylon stub Make sure that the transformation ratio set on the instrument corresponds to the current transformer used Change settings if necessary see Changing of All Data Settings with Personalized CODE 3 Press START TEST button Now a fully automated test sequence of all relevant parameters like auxiliary earth electrode probe and earth electrode resistances is implemented and finishes with the display of the result Re 4 Read out measured value Re 5 Call Rs and Ry with DISPLAY MENU 27 1625 2 Users Manual 28 Notices for the setting of earth spikes Before setting the earth spikes for probe and auxiliary
30. g earth resistivity Bull National Bureau of Standards Bulletin 12 4 Paper 258 S 478 496 1915 16 LUKE 1625 2 ADVANCED EARTH GROUND TESTER GEO Resistance DC Earth Ground Resistance 300k 300k Resistance 3k edw020 eps Figure 11 Measurement of Soil Resistivity i 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 deeper than a maximum of 1 3 of a 2 Turn central rotary switch to position Re 4pole The instrument is to be wired according to picture and notices given on the display A flashing of the sockets symbols OGOGO or MSC points to an incorrect or incomplete connection of the measuring lead 3 Push START TEST button 32 Earth Ground Tester Advanced Operation 4 Read out measured value Re From the indicated resistance value Re the soil resistivity calculates according to the equation Pr 27 a R PE side mean value of soil resistivity Qm Re nn measured resistance Q a ug probe distance m The measuring method according to Wenner determines the soil resistivity down to a depth of approximately the distance a between two earth spikes By increasing a deeper strata can be measured and checked for homogeneity By changing a several times a profile can be measured from which a suitable earth electrode can be determined According to the depth to be measured a i
31. ght to invoice Buyer for importation costs of repair replacement parts when product purchased in one country is submitted for repair in another country Fluke s warranty obligation is limited at Fluke s option to refund of the purchase price free of charge repair or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period To obtain warranty service contact your nearest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines that failure was caused by neglect misuse contamination alteration accident or abnormal condition of operation or handling including overvoltage failures caused by use outside the product s specified rating or normal wear and tear of mechanical components Fluke will provide an estimate of repair costs and obtain authorization before commencing the work Following repair the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges FOB Shipping Point THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED
32. he recommended current clamps at the minimum distance specified 47 1625 2 Users Manual 48
33. is method doesn t require the use of earth ground stakes or the disconnection of ground rods The Tester features e One button measurement concept e 3 pole and 4 pole earth ground measurement e 4 pole soil resistivity testing e Selective testing no disconnection of ground conductor 1 clamp e Stakeless testing quick ground loop testing 2 clamps e Measuring frequency 94 105 111 128 Hz The Tester includes these advanced features e Automatic Frequency Control AFC identifies existing interference and chooses a measurement frequency 94 105 111 128 Hz to minimize its effect providing a more accurate earth ground value e 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 e Adjustable limits for quick test result verification 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 regularly Grounding the connection of exposed conductive parts to the earth in case of a fault represents the most fundamental safety measure There are requirements for grounding of transformers high and medium voltage power pylons railway tracks tanks vats foundations and lightning protection systems 1625 2 Users Manual
34. isplayed with a steady LIMIT symbol Inside the measuring loop parameters cannot be changed Further possibilities of button operation Warning sound s cancel with DISPLAY MENU with display switchover or with CHANGE ITEM or SELECT button without display switchover Correct Measurement Connection Socket Allocation Check The instrument implements an automatic check corresponding to the measurement selected to see if the correct input sockets are used The display symbols 9 and MC are assigned to a specific socket as shown in Figure 4 From the way the symbols are displayed the validity of the connected wiring can be concluded by the following features e socket incorrectly wired or by mistake not wired corresponding symbol flashes e socket correctly wired corresponding symbol is steady active e socket with no connection corresponding symbol is blank Interference Voltages and Frequencies Measurement This measuring function detects possible interference voltages and their frequencies This function is automatically active in every switch position before an earthing or resistance measurement If the pre set limit values are exceeded the interference voltage is indicated as too high and a measurement automatically prevented The frequency of an interference voltage is only measurable if the level of this interference voltage is higher than 1 V Bring central rotary switch in desired position read out
35. istances gt 1 Q in wire can cause additional error of 5 mQ Q Measuring Range Display Range Operating Error 0 001 Q 2 999 Q 0 001 Q 3 0 Q 29 99 Q 0 012 0 020 Q 3 kQ 2 of rdg 2 digit 5 of rdg 5 digit 50 0 0 2990 0 500 0 2999 0 Earth Ground Tester Specifications Measuring sequence approximately 2 measurements s Measuring time typical 4 seconds includes reversal of polarity 2 pole or 4 pole Maximum interference voltage lt 3 V ac or dc with higher voltages measurement will not be started Maximum inductivity 2 Henry Maximum overload Ums 250 V Compensation of Lead Resistance Rx Compensation of lead resistance Rx can be switched on in functions Re 3pole Re 3pole 30 R and R 2pole Formation of measured value Raisplay Rmeasured Reompensated Value of setpoint entry Rx 0 000 Q variable from 0 000 29 99 Q by means of measuring adjustment Stakeless Ground Loop Measurement 3 Resolution Measurement range Accuracy Operating Error 0 001 to 0 12 0 020 Q to 199 9 Q 7 rdg 3d 10 rdg 5d Measuring principle Stakeless measurement of resistance in closed loops using two current clamps Measurement voltage Um 48 V ac primary Measurement frequency 128 Hz Noise current lex max lex 10 A ac Ra lt 20 Q max lex 2 A ac Ra gt 20 Q The information about stakeless ground loop measurements is only valid when used in conjunction with t
36. lamps transformers Additional error because of probe and auxiliary earth typical electrode resistance Measuring error of RH and RS Measuring time Minimal current in single branch to be measured Maximum interference current through transformer R Rs 2000 Ba Bed OE E Rerorat typical of 10 of R prora t Rs Ry typical 8 seconds with a fixed frequency 30 seconds maximum with AFC and complete cycle of all measuring frequencies 0 5 mA with transformer 1000 1 0 1 mA with transformer 200 1 3A with a transformer 1000 1 45 1625 2 Users Manual 46 Resistance Measurement R Measuring method current and voltage measurement Measuring voltage 20 V ac square pulse Short circuit current gt 250 mA ac Measuring frequency 94 105 111 128 Hz selected manually or automatically AFC Measuring Range Display Range Operating Error 0 001 Q2 2 9990Q 0 001 Q 3 0 Q 29 99 Q 0 01 Q 300 299 92 2 of rdg 2 digit 5 of rdg 5 digit 0 020 Q 300 kQ 500 0 2999 0 200 200940 30 0 KQ 299 9kQ 100 Q Measuring time typical 6 seconds Maximum interference 24 V with higher voltages measurement will not be started voltage Maximum overload Ums Maximum 250 V Resistance Measurement R Open circuit voltage 20 V de Short circuit current 200 mA de Formation of measured value with 4 pole measurement wires on AOG can be extended without additional error Res
37. le high voltage pylon usually requires the overhead earth wire to be disengaged lifted off or the separation of the earthing system from the pylon construction Otherwise false reading of the resistance of the pylon earth electrode are liable to occur because of the parallel circuit of the other pylons connected to each other by an overhead earth wire The new measuring method employed in this instrument with its external current transformer to measure the true current flowing through the earth electrode allows measurements of earth electrode resistances without disconnection of the earthing system or disengaging the overhead earth wire See Figure 7 edw016 eps Figure 7 Earthing Resistance without Disengaging the Overhead Earth Wire 26 Earth Ground Tester Advanced Operation As all four pylon stubs are connected to the foundation earth of the pylon the measuring current Imeas 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 parallel circuited pylon earthing resistances The other four current components l4 14 flow via each individual pylon foot The addition of all currents result in a current lg going through the earthing resistance for example the resistance of the composite earth electrode to the soil If the current transformer is fixed to each pylon stub one after the other
38. measured value of interference voltage measured value of interference frequency is displayed with DISPLAY 19 1625 2 Users Manual Earthing Resistances Measurement 20 This instrument is equipped with a 3 pole as well as a 4 pole resistance measurement that renders measurements of resistances of earthing systems possible as well as measurements of the soil resistivity of geological strata A specific description of the different applications is given further on in this manual As a special function the instrument offers measurements with an external current transformer with which a measurement of single resistance branches in interlinked networks lightning protection and high voltage pylons with cabling can be performed without separating parts of the system See Figure 3 To ensure most feasible interference suppression during measurements the instrument is equipped with four measuring frequencies 94 Hz 105 Hz 111 Hz 128 Hz with automatic switch over if necessary AFC Automatic Frequency Control The corresponding measuring frequency used for a specific measurement can be called and displayed with DISPLAY MENU after the measurement Additionally one of the four measuring frequencies can be selected and permanently set in special cases In that case in order to stabilize the display an average measurement can be carried out for up to 1 minute by keeping the START TEST button pressed To determine the earthing imped
39. nctions 0 ccccccceeeeececceceeeeeeececeaeceeeeeeesecencaeceeeeeeeesesensiaeeeeeess Control LOOP sitiessi ai cesses eee ene des Ain Measurement LOOD cccccceeeeeeeeccceeceeeeeeeseceeeaeeeeeeeeeseceaeaeeeeeeeeeseeesenaness Correct Measurement Connection Socket Allocation Check Interference Voltages and Frequencies Measurement Earthing Resistances Measurement rrrnarannrrrnvnnnrrnnnnnnrrvnnennrrnnnrnnrrensnnnnnr 3 Pole 4 Pole Measurement of Earthing Resistance rrrrrnrrrnnnrnnrnnnnnrnn Measurement of Single Earth Electrode Resistances in Mesh Operated Earthing Systems Using Selective Clamp Method umannrrrnrrnnrrrnrrnnnrrrnrrnnnnr 3 Pole 4 Pole Measurement of Single Earth Electrode Resistances Measurements on High Voltage Pylons uarnrrrnnnnrvvrvnnnrvvrrnnnrvrrrnnnnrrvvnnnn Clip On Transformer Errors Correction cccccececeeeeeeeeeeeeeeeeeeeeesees Compensation of Earth Electrode Connecting Lead Measurement of Soil Resistivity reronnrrrnronnrrrnrennrrnnnonnnrrnnrrnnrrnnrrnnrrennnnnnne Measurement of Resistances ccccceceeeeeeeceeeeeeeeeecacaeeeeeeesetscnieeeeeeeeteees Resistance Measurement R c ccccecceeeseeeeeeeeseeeeeeaeeseeeeeeteaeeeeeeeeaees Resistance Measurement R cccccccssceceeeeeeeeeeeseaeeeeeeeeeeeeeseaeeesneeeenes Compensation of Measuring Lead Resistance rrrsnnrnnanannrnnnvnnnrrrnnnnnnnn Ho
40. nual Table 3 Features and Functions 1625 2 ADVANCED EARTH GROUND TESTER GEO START TEST DISPLAY MENU E C1 Rear Side Ge edw006 eps Description Rotary switch to select measurement function and ON OFF START TEST button to start the selected measurement function DISPLAY MENU button to select the setting or show test data CHANGE ITEM button to change the selected setting value SELECT button to confirm the setting value Liquid crystal display LCD Connection H C2 for auxiliary earth 4 mm Connection S P2 for probe 4 mm Connection ES P1 for earth electrode probe 4 mm Connection E C1 for the earth ground electrode to be measured 4 mm USB Type B Port Battery compartment for 6 alkaline batteries type AA LR6 Screws to fasten the battery compartment mo Earth Ground Tester Display Display The display is a 4 digit 2999 Digit 7 segment liquid crystal display Table 4 Table 4 Display Elements Test am e eg edw004 eps Measurement Measurement Unit V Q kQ Hz _ Key 1625 2 Users Manual Table 5 shows what you will see on the display as you operate the Tester Table 5 Display Descriptions Function Displays Condition Note Before Stand by position to Turn rotary switch or START reduce power push button All consumption measured values remain stored edw
41. of Rx with button DISPLAY MENU Short circuit measuring lead as shown in Figure 14 Press START TEST button Value Rx is stored after the release of the START TEST button the display jumps back to voltage measurement Thereafter Rx is subtracted from the actual measured value Turning the central rotary switch for a short moment deletes the line compensation again 36 edw026 eps Figure 14 Compensation of Measuring Lead Resistance Earth Ground Tester Advanced Operation How to Change All Data Settings with Personalized CODE With this function FM UM Limit Limit beeper ratio R limit and set values can be programmed which keeps them in memory even if the instrument is switched ON OFF This feature enables the operator to create an instrument setup with customer defined settings according to the specific need Table 7 shows the settings that can be made only in the respective functions Table 7 Data Settings Function Parameter Settingrange Standard presetting gt or rm rcoanosmn m ac gt c gt c Cr waming sound Owor mm y E E se T m arcon AFC 0 000 Q 29 99 Q 0 000 Q R LIMIT 0 000 2 9 99 ka 9 99 kQ 37 1625 2 Users Manual 38 To save a code ale Press all 4 keys simultaneously and move central selector from OFF to the desired measuring mode The display shows C __ Now enter the CODE number Any three digit number can be entered Note Once a C
42. ransformer current range it was performed with For other ranges a different correction may be necessary 1 Connect a low Ohm resistor approximately 1 Ohm in the range you want to correct as shown in Figure 8 edw017 eps Figure 8 Correcting Clip on Transformer Errors 2 Turn central rotary switch to position SBC Re 3pole 29 1625 2 Users Manual 3 Press START TEST button and note result of Re value 4 Connect clip on transformer See Figure 9 edw018 eps Figure 9 Clip on Transformer Connection 5 Turn central rotary switch to position gt C RE 3pole 6 Press START TEST again If the measured value Re deviates from the Re value determined without clip on transformer by more than 5 adjust the clip on transformation ratio tr correspondingly R withclip ontransformer trnew trold x A _ R withoutclip onTransformer Example Your clip on transformer has a transformation ratio of tr 1000 1 The measurement without clip on transformer results in a value Re 0 983 Q With a clip on transformer a value of Re 1 175 Q is measured The deviation thus reads 1 175 0 983 Q 0 192 Q and referring to Re 0 983 Q an error evolves as following 100 x 21220 19 5 0 983Q The new transformation ratio to be set calculates trnew 1000 x ARE 0 983 1195 30 Earth Ground Tester Advanced Operation Compensation of Earth Electrode Connecting
43. re you operate the Product e Replace the batteries when the low battery indicator shows to prevent incorrect measurements e Batteries contain hazardous chemicals that can cause burns or explode If exposure to chemicals occurs clean with water and get medical aid e Remove the input signals before you clean the Product A Warning For safe operation and maintenance of the Product e Repair the Product before use if the battery leaks e Be sure that the battery polarity is correct to prevent battery leakage Calibration One year calibration intervals are recommended Service If you suspect that the tester has failed review this manual to make sure you are operating it correctly If the meter still fails to operate properly pack securely in its original container if available and forward it postage paid to the nearest Fluke Service Center Include a brief description of the problem Fluke assumes NO responsibility for damage in transit To locate an authorized service center go to www fluke com 41 1625 2 Users Manual 42 Specifications Temperature Range Operating Storage Temperature coefficient Operating humidity Operating altitude Climatic Class Protection type Case Battery door Electromagnetic compatibility Safety Measurement time Maximum overload Batteries Battery life span Dimensions Weight with batteries Memory Measuring method 0 C to 35
44. ring frequency can be set 4 Press START TEST button 5 Read out measured value Resistance Measurement R In this measuring mode all resistances from 0 02 Q to 3 kQ can be measured with dc voltage and automatic polarity reversal as per EN61557 5 To achieve highest accuracy 4 pole measurements are possible To balance the extension lead a compensation has to be done edw024 eps Figure 13 Resistance Measurement R 1 Connect instrument as shown in Figure 13 2 Turn central rotary switch to position R 3 In this mode all settings and LIMIT values available can be called with DISPLAY MENU AA Warning Before starting a measurement bring plant or test object to off or de energized circuit condition With an external voltage gt 3 V the measurement will not start AA Warning Due to the high measuring current inductive loads can cause lethal induced voltages during disconnection from the measuring circuit 35 1625 2 Users Manual Start measurement with START TEST button First R1 with positive voltage is measured on jack E After releasing the START TEST button R3 is measured with negative voltage on jack E The respectively higher measured value is displayed first The second measured value can be called with DISPLAY MENU If the set limit value R LIMIT is exceeded the limit can also be displayed Compensation of Measuring Lead Resistance 1 2 3 Call display
45. s selected between 2 m and 30 m This procedure results in curves depicted in the graph below Soil restivity pE Distances of Probe edw021 eps Curve 1 As pE decreases only deeper down a deep earth electrode is advisable Curve 2 As pE decreases only down to point A an increase in the depth deeper than A does not improve the values 33 1625 2 Users Manual Curve 3 With increasing depth pE is not decreasing a strip conductor electrode is advisable As measuring results are often distorted and corrupted for example by underground pieces of metal and underground aquifers a second measurement in which the spike axis is turned by an angle of 90 is always advisable see graph below q _e 90 E ES gt oe l l l O l I l l I oO l edw022 eps Measurement of Resistances Resistance Measurement R This measuring function determines the ohmic resistance between 0 02 Q and 300 kQ The measurement is done with ac voltage For measurements of very low resistances a compensation of the connecting leads is suggested see Compensation of Measuring Lead Resistance edw023 eps Figure 12 Resistance Measurement R 1 Turn central rotary switch to position R 2 Connect instrument as shown in Figure 12 34 Earth Ground Tester Advanced Operation 3 In this mode all settings and LIMIT values available can be called with DISPLAY MENU and the measu
46. selected manually or automatic AFC 55 Hz in function R Noise rejection gt 120 dB 16 2 3 50 60 400 Hz Maximum overload Ums 250 V Table 9 Operational Error Calculation intrinsic Erroror Reference Conditions Designation Requirements or Test in Tyb g Accordance with the YP or Specified Operating Influence Quantity Range Code Relevant Parts of IEC 1557 of Test Intrinsic error Reference conditions Part 5 6 1 Position Reference position 90 Part 1 4 2 Supply voltage At the limits stated by Part 1 4 2 4 3 the manufacturer Temperature 0 C and 35 C Part 1 4 2 Series interference Part 5 4 2 4 3 voltage Resistance of the 0 to 100 x Ra Part 5 4 3 probes and auxiliary but lt 50 kQ earth electrodes System frequency 99 to 101 of the Part 5 4 3 nominal frequency System voltage 85 to 110 of the Part 5 4 3 nominal voltage Operating error B A 115 E E E E E2 E E E Part 5 4 3 intrinsic error B Ne B x 100 variations fiducial value routine test type test 43 1625 2 Users Manual 44 0 001 2 999 Q 0 001 Q 3 00 29 99 Q 0 01 Q 30 0 Q 299 9 Q 2 of rdg 2 digit 5 of rdg 5 digit 0 020 Q 300 kQ 0 300 kQ 2 999 kQ 3 00 kA 20 09 Kn 30 0 kQ 299 9kQ 1002 Measuring time typical 8 seconds with a fixed frequency 30 seconds maximum with AFC and compl
47. te is possible This display sequence is terminated by turning the central rotary switch or pressing the START TEST button Display format SOFTWARE version X XX The measuring functions have two initial operational modes the Control loop and the Measuring loop 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 DISPLAY MENU button switches between the different set values inside a continuous loop The SELECT button selects the setting to be changed Pushing the CHANGE ITEM button the instrument either switches between certain set values or increases the decimal point selected with SELECT by 1 After parameter setting has been finished the next display can be called with DISPLAY MENU or the measurement can be started with START TEST 17 1625 2 Users Manual Depending on the selected function the parameters can be shown or changed See Table 6 Table 6 Control Loop Parameters Function Parameter Setting Range Remarks UST display only F ST display only RE 3 pole FM AFC 94 105 111 128 Hz UM 48 V 20 V selectable to 20 V with CODE and RK 0 000 2 29 99 Q in position RE 3 pole only Re LIMIT 0 000 Q 999 KQ only if activated
48. w to Change All Data Settings with Personalized CODE sasse Export Stored Data to PC vis cstnscniadiees grande ekke rade Delete Stored Datta ccccccccccceececceeceee cece eecencaeceeeeeeeseccaeaeeeeeeeseseccaeaeeeeeeereeeeeas Maintenant ennonn re Henican elaeein cena ee E E eaves Calli ration ceccccccccceceeeeecencceceeeeeeeccaaeaeeeeeeeseceaaaeeeeeeeeesecceaeeeseeeeeesetsnsiaeeeeeess DEP VICE Kadare Specifications 0 2 cceeececcee cece cece cece ance ee eeeeeeaaaaaaeeeeeeeeetecdaeaeeeeeeeseeecnaeaeeeeeeetes 1625 2 Users Manual List of Tables Table 1 SYVMDOIS ER ee eet 2 Models and Accessories u uuunmmnarbeinnaaree ike danset tees ava eee 3 Features and Functions ccccccccceeceeceeeeeeeeeceneaeceeeeeeeseceaeaaeeeeeeeeesecseseeeeeeeeenenes 4 Display El m nts muunrvrvukdtdvmn nea eee en 5 Display Descriptions ccccccececeeeee cece cece eee eeceneaeeeeeeeeeseceaeaeeeeeeeeeeseceecseeeeeeeneee 6 Control Loop P rameters o icicccccccds escorted a ia i aaa ai Diada 7 Data Settings EEE En EA EEE EEOAE AENEA EA 8 Sample CSV File for Logged Data 9 Operational Error Calculation cccccccceceeeeeceecceeceeeeeeeeeeeeaeeeeeeeeeseseeneeeeeeeeetees iii 1625 2 Users Manual Figure Ol NS List of Figures Title Page External Current Transformer El 162BN rannrrnnronnrrnnvrnnrrrvnrennrrvnnnnnrrnnrennrrensrnnnnr Battery Inserto EEE ER Method for
49. with CODE RE 4 pole warning sound On Off is activated with CODE RI On Off only if activated with CODE RE U ST display only F ST display only DC UM 48 V 20 V selectable to 20 V with CODE and RK 0 000 2 29 99 Q in position RE 3 pole only RE 4 pole I ratio 80 1200 display only gt C Re LIMIT 0 000 Q 999 KQ only if activated with CODE warning sound On Off only if RE LIMIT is activated with CODE R On Off only if activated with CODE U ST display only F st display only Fm AFC 94 105 111 128 Hz R RK 0 000 Q 29 99 Q R LIMIT 0 000 2 999 kQ only if activated with CODE warning sound On Off only if R LIMIT is activated with CODE R U sT display only 2 pole F ST display only and RK 0 000 29 99 Q 4 pole R LIMIT 0 000 2 9 99 KQ only if activated with CODE warning sound On Off only if R LIMIT is activated with CODE 18 1 See Compensation of Earth Electrode Connecting Lead Earth Ground Tester Advanced Operation Measurement 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 below the pre set limit the limit can be displayed as well with DISPLAY MENU In that case the measured value is diplayed with a flashing LIMIT whereas the limit value is d

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