DY4300 - Gbeshop.com
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1. and variableerror En iscalculated B A 1 15 4 4 4 5 A Inherent error E2 Changes by changes insupply voltage E3 Changes by temperature changes E4 Series interference voltage changes E5 change by theresistance of auxiliaryearth electrode Range to keepthe maximum operating error Measurement range within which the maximum operating error 30 applies 2 Range 0 5 2 099 20 Range 2 20 99 200 Range 20 209 9 2000 Range 200 2099 20k Range 20k 20 99k 200k Range 20k 209 9k Variation of Supply Voltage until the BatteryWarning mark appears Temperature Variation 10 C 50 C Series Interference Voltage 16 2 3Hz 50Hz 60Hz 400Hz and DC3V No need to consider DC Series interferencevoltages at 2 Auxiliary earth electrode resistance within following range or 50k Rh Rs limit Accuracy Re lt 0 40 1k 0 4 Re 1 00 2k 5 rdg 1 fs Re 2 00 23 5k 2 00 Re Rexi00 5k Rh Rs 4 NAMES OF PARTS 1 LCD Data NO Site NO _ 2 TEST me vd 3 Background light NOO3 S995 027 26 15 08 we 4 ENTER SAVE kal 5 MENU Re 2008 6 ESC 7 Cursor Key n Cursor Keys 8 Range power suap 9 E port E E7 NOO3 S995 02 26 15 08 10 ES port _ Rh 128 2 a 11 S port E Rs 2 64ka 12 H port Rk 0 072 2 Test display 5 MARKS AND MESSAGE DISPLAYED ON THE LCD Marks and Message Details BATT Batt Error Battery voltage is low Replace the2. fullyinserted When open the battery cover andreplace the batteries please set the range switch to OFF Note Before the test makesure that the rangeswitch is set inthe appropriate range After use setthe range switchto OFF andremove the testing line Remove the battery if longtime not inuse Do not placethe instrument inhigh temperature humidity dew and directsunlight place Do not useabrasives or solventsto clean instrument Pleaseuse the cloth toclean with neutral detergent orwater Keep dry storage To ensure safety please uesin the temperature range 10 C 50 C height of2000m or less SYMBOLE The circuit from theservice drop the serviceentrance CAT IV and to the power meter and primaryovercurrent protection device distribution panel Primary electrical circuits of the equipment connected CAT III directly to the distribution panel andfeeders from the distribution panel to outlets o Instrument with double orreinforced insulation AN User must referto the explanstionsin the instruction manual This instrument meets CAT III 300V CAT IV 150V To ensure safe operation of measuring instrumens IEC 61010 established safety standards forvarous electrical enviinments categorizedas CAT I to CAT IV and called measurement categories Highrt numbered categories correspond to electrical envirinments with greater momentary energy so a measuring instrument designed for CAT III environm
3. green red and connect thegreen Plug tothe E Terminal and the two red Plugs to theS P and H C Terminalsrespectively 2 Select the2W or20WRange 3 Engage 2 Alligator clips to short circuitboth of them 4 Save the Rkvalues with reference to7 2 6 Setting for the residual resistance Rk onthe Test Leads Note A break in Test Leads or burnout of Fuse is suspected when the LCD show RkK OL while 4 Test Leads arebeing shorted 3 Connection Connect the Test Leadsas shown in Fig 16 Grounded Electrode to test 2ee 44 Where earth for 7s r t mains supply is used Note When the supplied Simplified Measurement Probes are not used the S P and H C Terminals should beshorted 4 Earth Resistance Measurement Select a high resistance Range whenthe connection is done and pressthe TEST Button Then the earth resistance values Reare displayed on theLCD Select a lower Range for the lowearth resistances 5 Measured resistances at simplified measurements Two Wire method isused for thesimplified measurements Inthis method earthresistance of the earthed electrode re connected to the S P Terminal is added tothe true earth resistance Rx and shown asan indicated value Re Re indicated value Rx re If the Reis known beforehand true earth resistancevalue Rx iscalculated as follows Rx Re re Note The Re cannotbe canceled by thesetting of Rk 8 2 Earth Resistivity Measurement Making a setting of the interval between
4. out of this range is entered at the Setting Screen it automatically changed to 30 0m when pressing the ENTER SAVE key Note Intervals upto 30m canbe selected withthe supplied Test Leads 7 2 5 Date and Time Setting This instrument has aclock function and cansave the mesaured datawith time and dateinformation The clock will not be reset once it has been set even after powering off the instrument A manual adjustment is requiredto keep theclock time alwaysright Time setting can bedone in following procedure Select Date Time with theCursor Key on theCONFIG SETTING Screen and pressthe ENTER SAVE Key to display theTime and Date Setting Screen LETTS 11 59 02 Date 02729708 Fig 11 1 Time Setting Put thecursor in Time and pressthe ENTER SAVE Key and display thetime Setting Screen Select a parameter to be changed with the Cursor Key and press the ENTER SAVE Key Then the selected digit is highlighted andready to bechanged Fig 21 Theclock is 24 hourdisplay
5. Auxiliary Earth Spikes first andmeasuring the earth resistances with the4 Auxiliary EarthSpikes stuck intothe ground ateven intervals Thenthe instrument can calculate anddisplay earth resistivity onthe LCD automatically 13 Grounded Electrode to test Qasa k auxiliary earth spikes 1 aag r 5 10m 4 Earth Resistance Measurement Select a Range any Range is ok when the connection is done and press the TEST Button The measured erath resistanceRe are displayedon the LCD The operation procedureis same tothat for 3 wire measurements Note The readings may not correct when the auxiliary earth resistance istoo high Stick the Auxiliary Earth Spikes S P and H C in the moistpart of the soil Note If a messageRh gt limit or Rs gt limit appear on the LCD auxiliary earth resistance is too high to makemeasure ments Recheck the connectionof Test Leads 8 1 2 Precise Measurement 4 wire with earthTest Leads The ES terminal isalso used with the other terminals used atthe 3 wire Precise measurements In this case more precise results can be obtained because auxiliary earth resistances of the measured earth resistances are excluded moreover resistance ofthe Test Leads connected to the E Terminal can be canceled Terminals to be used E ES S P H C TerminalsTest Leads Connect to the E ES S P H C Terminals the ES Test Lead should be connected to the earthed equipment under test where the E Test Lead isconnected Auxiliary E
6. DUOYI Electronics Co Ltd CHINA Address 2 F ANLE INDUSTRY PARK GUANKOU 2 ROAD NANTOU NANSHAN SHENZHEN CHINA Tel 86 755 26977747 26977624 Fax 66 755 26976959 www dyinstrument com DY4300 2 3 4 Wire Digital Earth Resistance Tester CONTENTS 1 EV Rg oor cts eae es Gee 1 2 WCAC Ss e eao teins E E E E E EEEE O EE ena E E E EE E E ES 3 gee 8 0 18110 DS ee ne E ee eee ee ee re eee ee 3 4 Names of parts sseesesssseseseseesesseseseescsesesoesesesosee sesosossesososseseseseeoe seseseeseserococsesorscsesesossesesoseese 5 5 Marks and messages On he LOD yiisicscssseaccatotiveenstassrtdecateruxsen EENET ERE EEEE EEEE EATE TEENE SEEE 6 6 Measurement Principle eeseseseesesesesse seseereseseossesesesee sesesossese socsesesoso csesesoseee eeoesesesoe seseseeoe 6 6 1 Principle of Earth Resistance Measurements ccceececcee serseseeese seseeesesse seeeeeeeseeeceeeeseeeeees 6 6 2 Principle of Earth Resistivity Measurements ciceccscceicancieiee serersesese sororoseees sesssesssrereeese 7 7 Preparation for Measurement sssesseseseseesesesesossesesosseseseserseseseeseeseseseeo seesceease ereesesesesosseseso T Jaks Battery Voltage CCK census tesacesoraswosassuon esanendnens esea en Ena EEE EESE E RER EEE SEEE EEr E ESEESE 7 7 2 Fest parameter seting ccctscscetoaunerasnrsnuucevnnsewe conn sues panei EE AE 7 7 2 1 Setting Mtem Scree ereen i nii EEE EE A EEE ESEE DEED ERE E EE ENE 7 7 2 2 Setti
7. LCD shows Rh OLW or Rs OLwhen the Rh orRs values exceed 50k These parameters are measuredautomatically at auxiliary earthresistance measurements and can be checked on theResult Display Screen Note Rh andRs stand for Auxiliary Earth Pole H C and the Auxiliary EarthResistance of S P respectively 7 6 Connection of Earth Test Leadsand Simplified Measurement Probes Connect the Earth Test Leads andSimplified Measurement Probesto the connectorson the instrument firmly Otherwise a contact failure occurs and wrong results may beread out onthe LCD Note Some numbers other thanOLmay bedisplayed on the LCD when making measurement without connecting any cord orprobe at 200 or upper Ranges This is nota malfunction 8 MEASUREMENT METHOD 8 1 Earth Resistance Measurement 8 1 1 Precise Measurement 3 Wire with Earth Test Leads This is astandard method to measure earth resistances The measured earth resistances are free of auxiliary earth resistances butthe resistances on theE terminal arecontained Terminals to beused E S P H C Terminals Test Leads connect tothe E S P H C Terminals Auxiliary Earth Spike 2 pcs connectto the S P and H C terminal 1 Setting of Wiring System Select Wire 4 with reference to 8 2 2 Setting for Measurement Method inthis manual 2 Setting of Rk 1 Firmly insert each plug of3 test leads green yellow red to the corresponding connectors on the instrument 2 Selectthe2 or20 Range 3 Engage 3 Allig
8. SAVE Key Then the selected digit ishighlighted and readyto be changed Press the Right Cursor Key to increase numbers and the Left Cursor Key to reduce numbers Keep the Cursor Key pressed down to change numbers quickly Press the ENTER SAVE Key to confirm a number Repeat this procedure to change the other digits Pressing the ESC Key when settings are done returns to the Time DateSetting Screen Press theESC Keyagain to exitfrom the setting mode and returnto the CONFIG_SETTING Screen Then theclock starts Note The secondis not displayedon the MainScreen only hoursand minutes aredisplayed Note The backup battery may beexhausted when clock becomes wrong after powering on off the instrument In thiscase please contactour local distributor The life time of the backup battery is approx 2 years 7 2 6 Setting forthe residual resistance Rk on the Test Leads This instrument can store the residual resistance Rk of the Test Leadsbefore starting Re measurements on 2 3 4 wire system and can deductthe resistance fromthe measured result The setting of Rk canbe done in following procedure Select Rk with theCursor Key on the CONFIG_SETTING Screen and pressthe ENTER SAVE Key to display the RkSetting Screen Fig 12 Rk 0 000 2 Fig l2 Press the Test Buttonto measure Rk Themeasured results will notbe saved until theENTER SAVE Button is pressed TheCONFIG_SETTING Screen is displayedwhen the Button ispressed down and the data issaved
9. The Rk value is being kept even powering off the instrument To clear the saved Rk values select Clear on the Rk Setting Screen andpress the ENTER SAVE Key Then the value restores to 0 000 Then CONFIG_SETTING Screen isdisplayed again Note Rk values exceeding following values cannot be saved 2 Range max2 20 Range max 9 A message shown inFig 13 is displayed whenthe measured Rk is exceeding above value 10 6 2 Principle of Earth Resistivity Accoring to the Wenner 4 pole method apply AC currentI between theE earth electrode and H C current electrode to findout the potential difference V between the potentialelectrode S P and auxiliary earth electrodes ES To Obtain theearth resistance Rg where the interval beteewn electrodes isa m Then usea formula 2 aRg m Fig2 7 PREPARATION FORMEASUREMENT 7 1 Battery Voltage Check Power on the instrument If the display isclear without the Lowbattery mark LOW B showing battery voltage is sufficient Measurements cannot be made even the Test Button is pressed while the Low Battery Mark is displayed on the LCD Measurements are hault when the Low Battery Mark appearson the LCD 7 2 Test parameter setting 7 2 1 Setting Items This instrument starts with Measurement mode Fig 3 Main Screen when it ispowered on while the Range Switchhas been setto the position other thanOFF NOOS 3995 02 26 15 08 Re 2008 ae Fig o Measurement conditions should beset
10. alue Rx by applying AC constant currentI between the measurment object E earthelectrode and H C currentelectrode and finding outthe potential difference V between E earth electrode and S P potentialelectrode See Fig 1 Note The messageshown in Fig 13is also displayed when a fuse blows Following message appears andshows that the data cannot besaved when the ENTER SAVE Key is pressed with abovedisplay Note Following message appearsand shows that the200k or upper Ranges The Rk values saved at2 and20 Ranges are kept effectiveat 200k Note Following message appearsand shows that the data cannot be savedwhen trying to save Rk at Wire 7 3 Backlight To facilitate working in dimly lit situations or in night time a backlight function is provided which illuminates the LCD Press the Key to operate this function The backlight will light up for about 30 sec and turned off automatically Pressing the Key while thebacklight is oncan turn itoff 7 4 Auto Power Off This instrument isautomatically powered offabout in 5 min after thelast switch operation To exit from the auto power off mode set the Range Switchto OFF position once and re set it tothe Range at which ameasurement to beconducted 7 5 Auxiliary Earth Resistance Measurement This instrument can measureand display the auxiliaryearth resistances Rh Rs Whenthe Rh orRs value is more than Regulated value or 50 a warning message Rh gt limit or Rs gt limit appear The
11. arth Spike 2 pcs 1 Setting of wiring System Select Wire 4 withreference to 6 2 2Setting for Measurement Method in themanul 2 Setting of Rk The measured results obtained at 4 Wire system arenot be influenced bythe Test Leads Connected to the ETerminal but setting of Rk canbe made onthis instrument 1 Firmly insert eachplug of 4 TestLeads green black yellow red to the corresponding connectors on the instrument 2 Select the 2Wor 20W Range 3 Engage 4 Alligator clips to short circuitall of them 4 Save the Rkvalues with reference to6 2 7 Setting for the residual resistance Rk onthe Test Leads Note A break in Test Leads or burnout of Fuse is suspected when the LCD shows Rk OLW while4 Test Leads arebeing shorted 3 Connection of Auxiliary Earth Spikes andTest Leads Stick the Auxiliary Earth Spikes S P and H C into the ground deeply They should be aligned at an interval of 5 10m from the earthed equipment under test Connect the green Test Lead to the earthed equipment undertest the yellow Test Lead to the Auxiliary Earth Spike S P andthe red Test Lead tothe Auxiliary Earth Spike H C The black Test Lead connected to theES Terminal should beconnected to the earthedequipment under test Grounded Electrode gee lt i iliary eai spikes auxiliary earth spikes to test 12 Operating error Operating error B from the error within the ratedoperating conditions theuse of machinery inherent errors A
12. ator clips to short circuitall of them 4 Save the Rkvalues with reference to8 2 7 Setting for theresidual resistance Rk onthe Test Leads Note A breakin Test Leadsor burnout offfuse is suspected when the LCD shows Rk OL_ while 3 Test Leads are beingshorted 3 Connection of Auxiliary Earth Spikes andTest Leads Stick the Auxiliary EarthSpikesS P and H C into the ground deeply Theyshould be aligned atan interval of 5 10mfrom the earthed equipment under test Connect the green Test Lead tothe earthed equipment under test theyellow Test Lead tothe Auxiliary Earth Spike S P and the red Test Leadto the Auxiliary Earth Spike H C The black Test Lead connected to theES Terminal should beconnected to the earthedequipment under test fig 14 11 Put the RightCursor Key to increase numbersand the LeftCursor Key to reduce numbers Keep the cursor Key pressed down to change numbers quickly Press the ENTER SAVE Key to confirm a number Repeat this procedure tochange the other digits Pressing the ESC whensettings are done returnto the Time Date Setting Screen To change the date proceed to Step 2 Press the ESC Keyagain to exit fromthe setting mode and return to the CONFIG SETTINGScreen Then the clockstarts 2 Date Setting Date is displayed inthe following order Month Day Year Put the cursor onDateandpress theENTER SAVEKey to displaythe Date Setting Screen Select a parameter to be changed with the Cursor Key and pressthe ENTER
13. batteries Measuring This mark is being displayed during a measurment OL Measuring range for the selected Range is exceeded In case of Ust measurments 50V or more is detedted Failed to make successful mesurements Rh gt limit Rk is exceeded the limit value exceeding 2 at 2 or lower Range lt 20 Setting for Rk can be made at 20 Only2 3 4 Setting for Rk can be madeonly at 2w 3w 4w measurements Voltage Hight Ust is Regulated value or more Rs gt limit Rh gt limit Rh and rs values exceed the allowable range Correct results might not be obtained No Saved data No saved data exists Memory Full Memory is full No more data can saved Delete This Item A confirmation message before deleting the selected Delete All Item A confirmation message before deleting all selected Data Succedd Delete All items have been deleted Nxxx is amemory no and the left message saying 95 data have been stored NO03 095 Displayed at the Data Review Screen Noo3 Indicating the measured result is saved with Memory NO 003 S005 The character S stands for Site Selectable from 000 to 999 Saved Data is successfully saved 6 MEASUREMENT PRINCIPLE 6 1 Principle ofEarth Resistance Measurements This instrument makes erath resistance measurmentwith fall of potential method which is a method to obtain earth resistance v
14. before starting measurements Setting the date and time enables a saving measured data with time information Pressthe MENU Key andenter into theSYSTEM_MENU S YSTEM_MENU 02 26 15 08 Review Data Confid Setting Fig 4 Then select CONFIG_SETTING withCursor Keys and pressthe ENTER SAVE Key toenter into the CONFIG_SETTING mode Fig 5 CONF IG_SETTING ma e Site 111 Fig 5 Pressing the ESC Keytwice exits from theCONFIG_SETTING mode and returnsto Measurement mode Settings of following parameterscan be madeon this instrument Wire Measurement method Wiring System Freq Measurement frequency Site Site location No Lh Interval ofthe auxiliary earth spikes at Earth resistivity measurement Date Time Year Month Day Time 24 hourdisplay Rk Residualresistance on the Test Leads 7 2 2 Setting for Measurement Method Measurement method is selectable from 2 wire 2 wire system 3 wire 3 wire system 4 wire 4 wire system and earth resistivity SelectWirewith the Cursor Keyon the CONFIG_SETTING Screenand press the ENTER SAVEKey to proceed to the Wiring Setting Screen Select the appropriate Wiring System withthe Cursor Keyand press the ENTER SAVE Key Thenthe CONFIG_SETTING Screen with theselected Wiring System will be displayed Wiring wire 2 wire REIT 4 wire f Fig 6 7 2 3 Site location no setting The site location where measurements donecan be savedwith numbers Selectsite with theC
15. ents can enduregreater momentary energy thanone designed for CAT II Terminals to beused E ES S P H C Terminals Test Leads connect to the E ES S P and H C Terminals Auxiliary Earth Spike 4 pcs 1 Setting of Wiring System Select wire r with reference to8 2 2 Setting for measurement inthis manual Note The instrument doesn t accept any setting change onRk while measuringearth resistivity 2 Connection of Auxiliary Earth Spikes andTest Leads Stick the four Auxiliary Earth Spikesinto the ground deeply They should be aligned atan interval of 1 30m The depth shouldbe 5 or lessof the interval betweenthe spikes orsa G aar 1 30 meter e g The spike shouldbe stuck in the depth of 25cm orless when the intervalof the Auxiliary Earth Spikes is 5m If the Spikes stucktoo deep it mayresult in inaccurate earthresistivity measurement Note The supplied Test Leads can beused for the Spikesstuck at the intervalof max 20m Connect the green black yellow Test Leads connected tothe E ES S P and H C Terminals on theinstrument to the Auxiliary Earth Spikes from the closestto the farthest in this order 3 Setting of theInterval between Auxiliary EarthSpikes The interval of the Spikes should be entered according to the settingmade at the step of 8 2 5 Setting for the interval between AuxiliaryEarth Spikes at Earth Resistivity 4 Earth Resistivity Measurement Select a Range any Range is ok w
16. ference Voltage max50 9V Low Battery Warning Batterymark appears Continuous Measurement 400 timesor more with manganese batteries repeating measurements at every 30sec with aload of 1 Over range Indication OL Auto Power Off Function The instrument is automaticallypowered off when 5min passes without any Key operation Location for use Indoor Outdoor use Not completely waterproof altitude 2000m orless Applicable range Testing earthresistance on power distributionlines in house wiring system and electrical appliances Temperature amp Humidity range guaranteed accuracy 23C 5 relative humidity 85 or less nocondensation Temperature and humidity range 0 C 40 C relative humidity 85 or less no condensation Operating Temperature amp Humidityrange 10 50 relativehumidity 75 or less no condensation Supplied Testleads cannot beused at o C or less Storage Temperature amp Humidityrange 20 C 60 C relative humidity 75 or less no condensation Overload Protection betweenE S P and between E H C terminals AC280V 10secetary Withstand Voltage betweenthe electrical circuit andenclosure AC3540V 50 60Hz 5 secetary Insulation Resistance betweenthe electrical circuit andenclosure 50M _ or more DCi000 V Dimension 167 L x185 W x89 D mm Weight 90o0g including batteries Power source DCi2v size AA manganesedry battery R6P 8 In a use of this instrument under low temperature below OC a use of alkali
17. hen the connection is done and press the TEST Button Then the measured earth resistivity andthe earth resistance Rg between the ES S Terminals are displayed Pressthe Key to return tothe Main Screen If the Rg value is too large the display reads as shown In this case rotate the Range Switch and select an upper Range Pressing the Key while the measured result of 8 2 5 describesthe detailed setting procedure Note The depth should be 5 or less ofthe interval between the spikes If the Spikes stucktoo deep it mayresult in inaccurate earthresistivity measurement Note Accurate earth resistivitymeasurement will be affectedand errors in measuredresult becomes large if theRg value is smaller than the full scale valueat the selected Range When the Rg an values vary widely ateach Range measurements should be made againat proper Rg Range Note If amessage Rh gt limit orRs gt limit appear onthe LCD auxiliary earth resistance is too high to make measurements Recheck the connection ofTest Leads 9 BATTERIES REPLACEMENT When the cover iswet do not openthe battery cover Please do notreplace the batteries when the instrumenttesting Avoidelectrical shock Turnthe range switch to OFFbefore replace the batteries and remove thetest leads and auxiliarygrounding rods Unscrew the battery cover screw andopen the batterycover Replace the newbatteries put the battery cover andtighten the screws 14 CAT I Secondary electrical circuits co
18. n inaccurate measurements Auto Power Off Function The instrument is automaticallypowered off when 5min passes without any Key operation Data storage Save 1000 testdata 3 SPECIFICATIONS IEC 61010 1 CAT III 300V CAT IV 150V Pollution degree2 IEC 61010 031 Requirements for hand held Probes IEC 61557 1 5 Earth Resistance Tester Test range temperature andhumidity23 5 C45 75 RH Function Range Resolution Testing range Accuracy 2 0 01 0 05 2 0 3 rdg 0 05 Earth resistance 2 7 Re 2 0 1 0 5 20 9 arth resistance Rg 3 rdg 5dgt 2 1 5 209 Remaks 1 Function Range Resolution Testing range Accuracy 2000 0 05 2 09 K Earth resistance Re X 3 rdg 5dgt Earth resistance Rg 20 100 0 5 20 9 K Semana Auxiliary earth resistanceRh Rs Re Rh Rs 8 2 0 3 393 7 m 2 373937 m Soil resistance 2 0 03 39 37 m z 2xIIxaxRg 2 0 3 393 7 m Remaks 2 2 3 1999 m remarks 1 revised Auxiliary Earth Resistance 100 Rk remarks 2 Depending on thetest value of Rg Between the auxiliary ground rods a 1 0 30 0m Ground resistance test methods Voltage drop method Probecurrent and voltage testing Test method ofsoil resistivity 4 pole Output Test voltage Um Max 10Vrms 125Hz Test current Im Max 80mA Im x Re Rh lt Um Data save 1000 LCD Dot matrix 192x 64 monochrome Backlight Earth resistance max 209 9k Earth resistivity 1 m Series Inter
19. ne batteries with low temperature spec isrecommended 4 Earth Resistance Measurement Select a Range any Range is ok when the connection is done and press the TEST Button The measured earth resistances Re are displayedon the LCD The operation procedure issame to that for3 Wire measurements Note If amessage Rh gt limit or Rs gt limit appear onthe LCD auxiliary earth resistance is too high to make measurements Recheck theconnection of Test Leads 8 1 3 Simplified Measurement 2 Wire with Simplified Test Probes Use this method when the Auxiliary Earth Spike cannot be stuck In this method an existing Earth Electrode with a low earth resistance such asa metal waterpipe a commonearth of a commercial power supplyand an earthterminal of abuilding can beused with the 2 Wire method However the measured earth resistances contain the auxiliary earthresistance and the resistance of theE Test Lead This instrument is supplied with aset of Simplified Measurement Test Leads for which both of Alligator Clips and FlatTest Bar can bereplaced and used ifnecessary Terminals to beused E S P H C Terminals Test Leads one to the ETerminal Simplified Measurement Probes to the Sand H Terminals and short circuit these Terminals Auxiliary Earth Spike None is used 1 Setting of Wiring System Select Wire 2 with referenceto 7 2 2 Setting for Measurement Methodin thismanual 2 Setting of Rk 1 Put the Alligator Clips tothe 2 Test Leads
20. ng for Measurement Method eesssssssssee sesesesesssosesesesesesrs sesesesesesrerereeeeeeseseseseeseserese 8 7 2 3 Site location No Setting nsssseseseseseeseseseese ssesssseseseseroeseseroes seseseesesesererseseseesesesesoseeses 8 7 2 4 Setting for theinterval between Auxiliary Earth Spikes at Earth Resistivity oo eee 9 7 2 5 Dae And Mime sel IN 64 ccisersersnie aaevaces eee E EAEE NOEN EEE EEEE EEEa E EERTE E EES es 9 7 2 6 Setting for theresidual resistance Rk onthe Test Leads ccceccececsececeececeeeeeeeeeeeeeeneees 10 79 BaCk lS Dte a E A E E EEEE aud EERE A a aaea 11 FA AUO POWE O a eee E E E E E E E T tae is aa ers tec A E A E 11 7 5 Auxiliary Earth Resistance Measurement 06 sesessescsossesescseseeseseseesee cseeoeseseeoesesesoseeses oso 11 7 6 Connection of Earth Test Leads and Simplified Measurement Probe6 ccceceeeeeeeeeeeeees 11 8 Measurement etn ac cccesccweveeranunswvsaes eewavosheoniovsene E EEKE E S e E EE EEEE EEE E E e 11 8 1 Earth Resistance Measurement eseseeseseseeseseeseseeses seesesos seoeseseseesesesesossesesos eS 11 8 1 1 Precise Measurement 3 Wir scesssssssessesesseeorreesse sresssse seeesseecesssesecsesecoee seseocessseecsesssecee 11 8 1 2 Precise Measurement 4 WILEC ccccccceccceccscececcececceceeceses ceseseseseaseeesseseces sesesseesseeseseesass 12 8 1 3 Simplified Measurement 2 WiITe csccscsccscscsccecseescecssc
21. nnected toan AC electrical outlet throught atransformer or similar device CAT II Primary electrical circuits ofequipment connected to anAC electrical outlet bya power cord INTERIOR WIRING INCOMING WIRE E e a SCAT fn atl CAT I CAT NV TRANSTOMER SOCKET 4 CAT I 7 E CAT III See above table CAT IV See abovetable 2 FEATURES DY4300 is a 2 3 4 Wire Digital Earth Resistance Earth Resistivity Tester equipped with a microcomputer and can measure earth resistancesand calculate earth resistivities instrument can measure earthresistances on power distribution lines in house wiring systemand electrical appliances etc dueto the low output voltage approx10Vrms or less Designed to meetfollowing safety standards IEC 61010 1 CAT III 300V CAT IV 150V Pollution degree2 IEC 61010 031 Requirements for hand held Probes IEC 61557 1 5 Earth Resistance Tester Stable measurement results can be obtainedunder a noisyenvironment by introducingthe FFT Fast Fourier Transform technology Dot matrix 192x64 Monochrome LCD Backlight function to viewthe test results indimly areas Rk Function isavailable to cancel theresidual resistance on theTest Leads Battery Check Function Auxiliary Earth Resistance Measurement Function Auxiliary earth resistances aremeasured and displayed Warning for Auxiliary Earth Resistance Measurements Warnings are displayedon the LCD when auxiliary earth resistances are toohigh and mayresult i
22. re this flagis wrong operation may cause deathor serious injury Z Note to ignore thisflag is wrong operationmay cause death orserious injury and equipment and other itemsof damage A The flag is divided into the following three kinds of attention toits content 10 Accessories 1 x Auxiliary Earth Spikes A Danger 4 X Earth Test Leads one Red EarthTest Leads 15 meters one Yellow EarthTest Leads 10 meters one Do not use loop to groundvoltage AC DC300V above Green Earth Test Leads5 meters one BlackEarth Test Leads 15meters Do not measured ininflammable places may sparkand cause an explosion 8 x 1 5V AA Batteries Do not useinstruments or with wet hands 1 x manual Please note that thesimple measurement not tocause the metal headof the test line 1 x Certificate and short circuit of thepower cord Doing so maycause personal injury 1 x Toolbox Do not exceedthe test rangetest input 1x Bags When the testlines are connected do not pressthe test button Do not openthe battery coverin the thetesting process A Warning Use if the instrument or thetest line cracking or metal parts exposed to immediately stop thetest The analyte connection withthe test line donot switch range Do not removethe instrument to carryout the decomposition alteration replacement alternative parts Repair or adjustmentis required pleasecontact the us When the instrument iswet do not replacethe battery When using thetest line the plug is
23. scsceees secscescecscssescscesceee sasescseasens 13 8 9 Earth Resistivity C J mersani re eG E OE E EEIE EEEE S E OAE EEES 13 9 Batteries replacement sssesesessssesesessrsesesrescseserersesese sesesesorsesesererseseree seesesoreeseserereeserereeseses 14 10 ACCESSOT ES oesseseeseesessssecesssseoeessercesssese srecssssrccesssersesesere coresseocceseseceseseecee coeseseoceeseeeseeseseee 15 1 SAFETY WARNINGS This instrument hasbeen designed manufactured andtested according to IEC61010 Safety requirments for Electronic Measuring apparatus and delivered in the best condition after passing quality control tests This instrument manualcontrains warnings andsafety rules which have to beobserved by theuser to ensure safe operationof the instrumentand to maintainit in safecondition Therefire readthrought these operating instructions before using theinstrument A WARNING Please carefully readthis manual beforeuse Keep custody inorder to access when needed Please observe theinstrument to useis specified inthe manual Understand and followthe safety instructionsin the book Muststrictly comply with the above instructions Failure tocomply with instructions mayresult in injuries and accidents Instrument of A signsin order touse security you must read theinstruction manual A DANGER Indicates toignore this flagto the operationof error resultingin a high risk of deathor serious injury ZA WARNING Indicates toigno
24. ursor Key on theCONFIG_SETTING screen andpress the ENTER SAVEkey to displaythe site number setting screen Select any digitto be changed with the Cursor Key and pressthe ENTER SAVE Key Then the selected digot is hightedand ready to bechanged Fig 7 Site_Number 123 Fig 7 Repeat this procedure tochange the other didits Press the ESC keywhen settings are done Then the CONFIG SETTING Screen Fig 8 with theselected site No will be displayed Note Site No is selectable from 000 to 999 Site_Number 23 Fig 8 7 2 4 Setting forthe interval between Auxillary Earth Spikesat Earth Resistivity Making setting of the intervals between auxiliary earth spikes is necessary to measure earth resistivity Select Lh with theCursor Key on theCONFIG SETTING Screen and pressthe ENTER SAVE key to dosplay the length SettingScreen Select any digits to be changed with the Cursor Key and press the ENTER SAVE Key Then the selected difits ishighlighted and reasyto be changed Length fg L 12 3m Fig 9 Press the Right Cursor Key to increase numbers and the Left Cursor Key to reduce numbers Keep the Cursor Key pressed down to change numbers quickly Press the ENTER SAVE Key to confirm a number Repeat this procedure to change theother digits Pressthe ESC Keywhen settings aredone Then the CONFIG SETTING Screen witha new intervalwill be displayed Note Intervals van be set within a range of 1 0 to 30 0m If a longer interval
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