Electronic Technologies ES3010 Bedienungsanleitung

CONTENT

I. SafetyPrecautionsand Procedures.................................................2

II. Introduction.........................................................................................3

III Measuring Rangeand Accuracy...................................................4

IV TechnicalSpecifications.................................................................5

VTester Structure................................................................................7

VI Measuring Principle........................................................................7

VII. FunctionQuickCheck ....................................................................8

VIII. Operation Methods ........................................................................9

1Switch On/Off.............................................................................9

2Battery Voltage Check.................................................................9

3. Ground voltage measurement.......................................................9

4Wire Resistance Verification.....................................................10

5Grounding Resistance Precision Measurement.........................10

6Simple Method forMeasuring Ground Resistance...................11

7BacklightControl......................................................................12

8AlarmSettings.........................................................................13

9Data Lock/Storage.....................................................................13

10 DataReview/Deletion.............................................................13

IX. BatteryReplacement.....................................................................14

XAccessories....................................................................................14

I.SafetyRules and Precautions

Thanksforyourpurchaseof DigitalEarthResistance Tester

ofourcompany.Beforeyou usethe instrumentforthe firsttime,in

ordertoavoidpossibleelectricshockorpersonalinjury,please be

sureto: readand strictlyobservethesafetyrules and

precautionslistedinthismanual.

Underanycircumstance,itshall payspecialattentionon

safetyinuse ofthistester

uThe tester isconforming toIEC61010on design, production

and test.

uUnderanycircumstance,itshall payspecialattentionon

safetyinuse ofthistester.

uPlease don tuse high-frequencysignalgeneratorslike mobile

phoneand etc. toavoiderror during measuring.

uPayattention towords andsymbolsstickon the Tester.

uIt shall makesurethattesterand accessories areingood

conditionbeforeuse;itcan be usedonlywhen thereisno

damaged,naked orbroken part intestingwires orinsulation

layer.

uDuring measurement, itisforbidden totouch bareconductors

and circuit undermeasurement.

uConfirmthatconnectorplug ofleadhas been inserted inthe

tester interface closely.

uPlease don timpose over600VA.C.orD.C.voltage on the

part between testingend and interface.Otherwise,itmayhave

damageon the tester.

uPleasedon tmeasureinan inflammableplace.The flame

sparklemaybe cause explosion.

uDuring usage oftester,please stop usingitwhenexposed

metaliscaused bybroken enclosureor testing wires.

uPlease don tkeep orstorethe testerinthe spotwith

high-temperatureandmoisture,orcondensation,and under

direct daylight radiation for along time.

uForreplacing battery,please confirmtestingwirehas moved

apart the meter,and FUNCTIONSWITCHrotaryswitch isin

“OFF”position.

uPlease put the used batteries inappointed collectionplace.

uWhenreplacingthe batterywiththe meter,make surethatthe

testlinehas been removed fromthe meterand the meteris

turned off.

uWhenthemeterdisplaysbatterylowvoltage symbol“”，

and need toreplace the batteryintime.

uPayattentiontomeasuring range and usageenvironment

stipulated for the Tester.

uThismeasuring deviceisonlytobe used,disassembled,

adjusted and repairedbyqualified personnelwithauthorization.

uWhenitmaycause hazardbycontinuoususe forthe reason

ofthe Testeritself,itshallimmediatelystop usingitand depositit

at once, leaving it for disposalbyauthorized agency.

uForriskofdangericon inmanual ,usersmustperform

safetyoperationsstrictlyincompliance withthemanualcontent.

II.Introduction

Digitalgrounding resistance tester,alsoknownas the

three-wiregrounding resistance tester, grounding resistance

meter,etc., isacommonlyused meterformeasuring grounding

resistance.It adoptsalarge LCDgray-whitescreen backlight

displayandmicroprocessortechnologytomeettherequirements

oftwo-wireand three-wiretestresistance. Suitablefor

telecommunications,electricity,meteorology,computer

rooms,oil fields,powerdistributionlines,iron tower

transmission lines,gas stations,factorygrounding networks,

lightningrodsandsoon.Instrumenttestingisprecise,fast,

simple, stableandreliable.

The digitalgrounding resistance tester iscontrolled bythe

microprocessorand can automaticallydetectthe connection status

ofeach interface and the interference voltageandinterference

frequencyofthe ground network,and has the function oftesting

the auxiliarygroundingresistance value.Atthe sametimestore

500 setsofdata, resistance measurementrange:0.01 ~3000

, groundingvoltagerange:0.01~ 600.0V

III．Measuring Rangeand Accuracy

Measuring

Functions Measuring

Range Accuracy Resolution

EarthGround

Resistance

0.01Ω～30Ω±1.5%rdg±5dgt

(Auxiliaryearth

ground

resistance

100Ω±5%，

voltage toground

＜10V)

0.01Ω

30.1Ω～300Ω0.1Ω

301Ω～3000Ω1Ω

EarthGround

Voltage

0.01～10.00V

AC ±1.5%rdg±3dgt 0.01V

10.1～100.0V 0.1V

101～600V 1V

(Remark:23℃±5℃，below75%rh)

IV．TechnicalSpecifications

Earthing

Resistance

Range 0.01Ω～3000ΩAccuracy±1.5%rdg±5dgt

Ground

resistance

resolution 0.01Ω

Grounding

voltage range 0.01～600VAC Accuracy±1.5%rdg±3dgt

Ground voltage

resolution 0.01V

Reference

conditions 23°C±5°C, 75% rhorless(Auxiliaryearth

resistance100Ω±5%, voltagetoground<10V)

Function Earthgroundresistancemeasurement, voltage to

groundmeasurement, lowvalue resistance

measurement

PowerSupply

DC 6V 1.5V LR14 battery

Backlight Controllablegrayscreenbacklight,suitable forusein

dimplaces

Measuring

Mode Precise3-pole measurement,simple2-pole

measurement

Measuring

Method

Earthgroundresistance:ratedcurrentchange-pole

method,Testcurrent >20mA(sine wave)，128Hz；

Voltage toground:average value rectification

WireResistance

Verification

Avoid errorcausedbytestingwirethatisfailed tobe

fullyinsertedintotester interfaceor bypoorcontact or

byusers replacingorlengthening testingwires,

makingitmoreaccurateforearthgroundresistance

measurement.

DisplayMode 4-digitalsuper-large LCD display,grayscreen

backlight

Measuring

indicator Duringmeasurement,LED flashindicator,LCD count

downdisplay

LCD Dimension

108mm×65mm

Dimension L×W×H: 240mm×188mm×85mm

Testing Wires Three wires:eachforRed 15m,Yellow10m,and

Green 5m

SimpleTesting

Wire 2wires: eachfor Red 1.5mandGreen 1.5m

Auxiliary

2PCS

earthing rod

Measuring Rate

Voltage toground:about3times/second;earth

groundresistance: about5seconds/time

Measuring

Times Over 5000 times

Circuit Voltage Measuring voltage toground: measuring belowAC

600V

DataStorage 500 sets,flashdisplay “FULL”icon toindicatestorage

is full

DataRead Datareadfunction: “MR”icon display

Overflow

Display Exceedingmeasuring range overflowfunction: “

”

icondisplay

AlarmFunction

Whenmeasuringvalueexceedsalarmsetting value,

thereis beeper alarming

BatteryVoltage

Batterypower indicateinreal time,thebatteryvoltage

is lowand remindtocharge intime

Power

Consumption

Backlight：25mAMax

Standby: 25mAMax(Backlightshutoff)

Measurement：70mAMax(Backlightshut off)

Weight

Tester：1230g (including battery)

TestingWires：610g (includingsimplytesting wires)

Auxiliaryearthingrod：360g(2PCS)

Meter bag：1200g

Working

Temperature&

Humidity -10℃～40℃；below80%rh

Storage

temperature&

humidity -20℃～60℃；below70%rh

Overload

Protection Measuring earthgroundresistance:betweeneach

interfacesof E-P、E-C,AC 280V/3seconds

Insulation

Resistance Over 10MΩ(between circuitandenclosureit is500V)

Withstanding

Voltage AC 3700V/rms (Between circuit and enclosure)

Electromagnetic

Features IEC61010-4-3,radio frequency electromagneticfield

≤1V/m

Protection Type

IEC61010-1 、IEC1010-2-31 、IEC61557-1,5 、

IEC60529(IP54)、Pollutiongrade 2、CAT Ⅲ300V

V．TesterStructure

1. MEMButton 2. ALARMButton 3. BACKLIGHTButton

4. LCD 5.TESTButton6.SETButton

7.UPButton 8.DOWN Button

9. RotarySwitchfor Selecting Function Button

VI．Measuring Principle

1. Voltagetogroundmeasurementadoptsaveragevaluerectificationmethod.

2.The groundingresistancevalue ismeasured using the ratedcurrentchange

method,thatis,therated currentI(30mAMax,128Hz)flowing between the

measuring objectE(ground electrode)and H(currentelectrode); seeking

potentialdifferenceVofEandS(voltage electrode),then todeterminethe

groundresistanceRx

Rx=V/I

3Itsoperatingerror(B) isan errorobtained within therated operating

conditions,andcalculated withthe intrinsic error(A) and theerror(E) due to

variations.

A：Intrinsicerror

E1：Variation due toposition change

E2：Variation due topower supplyvoltage

E3：Variation due to temperaturechange

E4：Variation due tointerferencevoltagechange

E5：Variation due tocontact electrode resistance

E7：Variation due tosystemfrequencychange

E8：Variation due tosystemvoltagechange

VII. Function QuickCheck

POWER SwitchOn/Off

MEM Databrowsing/valuesetting

Backlight Button

Backlight control

TFRTButton Start measuring

Button Deletedata measurementselection

Button Wireresistancecheck/deletedata

measurementselection

Set Button Set alarmvalue/deletedata

MEMButton DataLock/Store/View

Button Alarmfunction start/alarmthreshold

setting

R and U Measuregearselection

VIII. Operation Methods

1．SwitchOn/Off

Turnthe function keytothecorrespondingtestposition and turniton.

Turnthe function keytotheOFF position toturnofftheinstrument, themeter

will be automaticallyturned off, and afterturning off, itwill be turnedtothe

OFF positionandrestart..

2．BatteryVoltageCheck

Afterswitchon,ifLCD displays lowbatteryvoltage icon““，which

indicatesthat batteryvoltage islow, andpleasereplacethebatteryintime.

3.Ground voltagemeasurement

Pleasemakesuretestingwire plug hasbeentotallyinserted intotesters

correspondinginterfaceanditmaycausemeasurementvalueerrorfor

incompleteinsert orpoorcontact.

The testercannotbeusedfor commercialpower supplyvoltage

measurement.Forspecial situationthatneedstomeasure,itcan only

useV,Einterfacetoconnectformeasurement.Itisnotallowed to

measure commercialpower voltagein thecaseofshortcircuitofH,S

interface.Otherwise,measuringvoltage in theearthing circuitofcutout

switchmaycausecutoutswitchstart.

Onmeasuringearthingvoltage,pleasedonotimpose

over600V

voltage

on measurementconnectors.

Whenmeasuringgroundvoltage,donottouchexposedconductorsto

avoidelectric shock.

Aftertheauxiliarygrounding rod andtestline areconnected,switchthe

functionbuttonUtothevoltagelevel,the LCD displaysthe voltagetoground,

and themeasuredvoltagetoground cannotexceed 600V.

Ingeneral,formeasuring earthingvoltage,itisonlytoconnectthe

testing wires corresponding to V, E interface.Asshown:

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