FUZRR ES3001 User manual

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CONTENT
ISafetyPrecautions and Procedures 2
II Introduction 3
III. Rang and Accuracy 3
IV Technical Specifications 4
VStructure 6
VI MeasuringPrinciple 7
VII Operation 8
1Switch on/off 8
2. Battery Voltage Check 9
3. Ground voltage measurement 9
4Wireresistance check 9
5Four-wire Precision Test Grounding Resistance 10
6Three-wireTest GroundingResistance 13
7Two-wire Easy Test Grounding Resistance 13
8Soil Resistivity Test 14
9Backlight Control 16
10 Alarm Setting 16
11 Data Lock/Storage 16
12 Data Review/Delection 17
13 Data Upload 17
VIII. Battery Instructions 18
IX Accessories 18

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ISafetyPrecautionsandProcedures
Thankyoufor purchasing ourcompany's Soil Resistivity Tester.Before
usingthe instrumentfor the first time,in order to avoidpossibleelectric
shock orpersonalinjury,pleasebesureto read andstrictly observethe
safety rulesand precautions listed in this manual.
Inanycase,theuseofthis instrument should pay special attentionto
safety.
lTheinstrumentisdesigned,producedandinspectedaccordingtoIEC61010
safety specifications.
lInanycase, the use ofthis instrumentshouldpayspecial attention to
safety.
lWhenmeasuring,high-frequencysignalgeneratorssuch as mobilephones
should notbeusednext to themeter to avoid errors.
lPay attentiontothe text and symbols on thebody ofthe instrument.
lBefore use,make sure thatthe instrument andaccessories are in good
condition.Theinsulation layerof the instrumentand test wireisnot
damaged, exposedor broken.
lDuring the measurement, itis forbiddento touchexposedconductors and
the circuit beingmeasured.
lMake suretheconnection plug of thewire is tightly inserted in the meter
connector.
lDonot apply morethan100VACvoltageorDCvoltagebetween thetest
terminal and theinterface,doingso may damagethemeter.
lDo not measure inflammableplaces,sparks may causeexplosion.
lWhen the instrument is in use and the enclosure or test wire is broken
and themetalisexposed, please stop using it.
lDonot place andstorethe instrument foralongperiodoftime under
conditionsof hightemperature,humidity,condensation,anddirect
sunlight.
lWhen charging the battery,make sure thetest line has beenremoved from
the meter andthemeter is off.
lThemeterdisplaysthebatteryvoltagelowsymbol “”andshouldbe
chargedintime.
lPayattentionto themeasuringrangeanduseenvironmentspecifiedbythis
instrument.
lThe use,disassembly, calibration andmaintenance of this instrumentmust
be performed by authorized personnel.
lBecause of the reason ofthis instrument,ifit is dangerous tocontinue
using it,it should beimmediately stoppedand sealed immediately,and

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it should be handled by a qualifiedorganization.
lThe""safetywarningsign intheinstrumentand manualmust beoperated
strictly in accordance withthe contents of this manual.
II Introduction
SoilResistivityTester alsoKnown as GroundResistance •Soil
Resistivity Tester, Precision Ground ResistanceTester, etc., is acommonly
used meter formeasuringgrounding resistance. It adopts alargeLCD
gray-whitescreen backlightdisplayand microprocessortechnologyto meet
the requirementsoftwo-wire、three-wire andfour-wire testresistance and
soilresistivity. Suitablefortelecommunications, electricity, meteorology,
computerrooms,oil fields, power distributionlines, iron tower
transmissionlines, gas stations, factory grounding networks,lightningrods
and so on. Instrument testing is precise, fast, simple,stable and reliable.
The Soil Resistivity Tester is controlledby themicroprocessorandcan
automatically detect the connectionstatusofeachinterfaceandthe
interference voltage and interference frequency of the ground network,and
has the function of testingthe auxiliarygroundingresistancevalue.At the
same timestore500sets ofdata, resistancemeasurementrange: 0.01Ω~
30.00kΩ,grounding voltagerange:0.01~100.0V. Onlinemonitoring data
throughmonitoringsoftware, USBdatauploaded toPCanduniquefeaturessuch
as intelligent alarm alert
The SoilResistivity Tester consistsofhost,monitoringsoftware,test
line,USBcable,andgroundingrod.Ithasthefunctionsof reading,checking,
saving,reportingandprintingofhistoricaldata.
III.Rang and Accuracy
Test
Function Range Accuracy Resolution
Grounding
Resistance
(R)
0.00 ～30.00 ±2%rdg±5dgt
(remark1) 0.01
30.0 ～300.0 ±2%rdg±3dgt 0.1
300 ～3000 ±2%rdg±3dgt 1
3.00k ～30.00k ±2%rdg±3dgt 10
Soil
Resistivity
(ρ)
0.00 m～99.99 m
ρ=2πaR (remark2)
0.01 m
100.0 m～999.9 m 0.1 m
1000 m～9999 m 1 m
10.00k m～99.99k
m 10 m
100.0k m～999.9k
m 100 m
1000k m～9999k m 1k m

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Grounding
Voltage AC 0.00～100.0V ±2%rdg±3dgt 0.01V
Remark：
1. Reference conditions:accuracywithRhRs< 100Ω。
Workingconditions:Rhmax＝3kΩ+100R＜50kΩ；Rsmax＝3kΩ+100R＜50kΩ
2.Depends on themeasurement accuracy of R,π=3.14,a:1m～100m；
IV TechnicalSpecifications
Function Two three four-
wiremeasure groundingresistance, soil
resistivity;
Ground voltage, ACvoltage measurement
Ambient
temperature and
humidity
23℃±5℃，below75%rh
Power DC6V4.5Ah lead-
acid batterylasts more than100 hours
standby
Interference
voltage <20V(should be avoided)
Interference
current <2A (should be avoided)
MeasureR
electrode
spacing
a＞5d
Measured
electrode
spacing
a＞20h
Auxiliary ground
resistance Reference condition <100Ω,workingcondition <5kΩ
Range Grounding resistance:0.00Ω～30.00kΩ Soilresistivity:0.00Ωm～9999kΩm
Grounding voltage:0.00V～100.0V
measurement mode
Precise four-wire、three-
wire measurement, simple
two-wire measurement
Measurement
methods
Grounding resistance: rated currentchange polemethod
Soilresistivity:four-polemethod
GroundVoltage:AverageRectification(betweenS-
ES
interface)
Test frequency 128Hz
Short circuit
test current >20mA (Sine Wave)

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Open circuittest
voltage AC 28V max
Electrode
spacingrange Can be set1m ～100m
Change gear fully automatic shifting0.00Ω～30.00kΩ
fully automatic shifting0.00 Ωm～9000kΩm
Backlight
Controllablegray screenbacklight,suitableforuse
in dim places
Displaymode 4-bit large LCD display,gray screen backlight
Measurement
instructions LED flashing indicator during measurement
LCD size 111mm×68mm
LCD displayfield 108mm×65mm
Instrument size L/W/H：277.2mm×227.5mm×153mm
Standard test
line length 4strips：red 15m，black15m, yellow10m，
green 10m each
one
Simple test line 2strips：yellow 1.6m，green1.6m each one
Auxiliary
Grounding rod 4PCS：φ10mm×200mm
Measuretime Ground voltage：about3 times/sec;
grounding resistance 、
soilresistivity:about7
seconds/time
Line voltage Measurementbelow AC100V (ground volt
agemeasurement
functioncannotbe usedto measure commercial power)
USB interface
With USB interface, software monitoring, storagedata
can be uploaded tothe computer, save andprint
Communication
Line One USBcommunicationline,1.5m long
Data storage
500groups,"MEM" storageindicates,flashing"FULL"
symbol indicatesthatthe memory isfull
Data review Datareview function:"MR" symboldisplay
Overflow display Over-rangeoverflow function: "OL"symboldisplay
Interference
test
Automatic identif
ication of interference signals,
"NOISE"symbolindicationwhen theinterference
voltageishigherthan 5V
Auxiliary
grounding test
With auxiliary ground resistance test function, 0.00K
Ω~ 30kΩ(Rhmax=3kΩ+100R<50kΩ;Rsmax=3k
Ω+100R <50kΩ)
Alarm function
Alarmwhen the measured value exceeds the alarmsetting
value
Batteryvoltage Real-
timedisplay ofbatterypower,remindingtimely

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charging whenbatteryvoltage is low
Automatic
Shutdown “APO”Indicates,automaticShutdownAfter15Minutes
Power
consumption
Standby: 40mAMax(Backlightoff)
Turnonbacklight:about43mA
measuring：75mA Max(Backlight off)
Weight Instrument：2450(includingbattery) Testlines：1300g
Auxiliary grounding rod：850g(4PCS)
Working
temperature and
humidity -10℃～40℃；below80%rh
Storage
temperature and
humidity -20℃～60℃；below70%rh
Overload
protection Grounding resistance：AC 280V/3 secondsbetween H-
Eand
S-ESports
Insulation
resistance 20MΩ以上(500V between circuitandhousing)
Pressure
resistance AC 3700V/rms(between circuit and housing)
Electromagnetic
properties IEC61326(EMC)
Suitable for
safety
regulations
IEC61010-1(CAT Ⅲ300V、CAT IV 150V、pollutionlevel
2)；
IEC61010-031；
IEC61557-1(grounding resistance)；
IEC61557-5(soil resistivity)；
JJG 366-2004.
V. Structure

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1. LCD2. H interface：current pole
3. S interface：voltage pole 4. E interface：
groundingpole
5.E interface: grounding electrode6. Functionbutton
7. DC charging 8. USBinterface 9. Testbutton
10. SafetyAlligator Clip11.Test line12. Groundingrob
13. Easy test line14.Simpletest line short connector
VI Measuring Principle
1．Groundvoltage measurement usingaverage rectification。
2．Thegroundingresistance value ismeasured usingtherated currentchange
method, thatis,the ACrated current Iflows betweenthegroundelectrode
ofthemeasuringobjectEand theHcurrent electrode to obtain the potential
differenceVbetweenthe Egroundelectrodeandthe Svoltageelectrode, and
calculate the groundingresistance Raccording to theformulaR=V/I.In order
toensuretheaccuracy of the test,afour-wire method was designedto increase
the ES auxiliary ground. During the actual test, ES and E were clamped at
thesamepoint of the grounding body.Thefour-wiretestcaneliminatethe
influenceofthecontactresistance(usuallydirtorrust)onthemeasured
grounding body,auxiliarygrounding rod,test clip, and the inputinterface
ofthe instrumenttothe measurement,andcaneliminatetheinfluence ofthe
wireresistance onthe measurement,more precise.

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3．Theworkingerror(B)istheerrorwithintherated operating conditions,
whichis calculatedfrom the inherenterror (A)andvariationerror (Ei)of
the existing instrument.。
A：inherent error
E2：Changes due topowersupply voltage changes
E3：Changes due totemperaturechanges
E4：Changes due todisturbancevoltagevariations
E5：Changes due tocontact electrode resistance
4．Soilresistivity(ρ)ismeasuredusingthe4-polemethod(Winner
method):ACcurrent IbetweengroundelectrodeEand currentelectrode
H,calculate thepotentialdifference Vbetween the voltage pole S and the
auxiliary groundpoleES,the potential difference Vis dividedby the
alternatingcurrent Itoobtainthe ground resistance value R,theelectrode
spacingdistanceis a(m)，accordingtothe formula ρ=2πaR(Ωm),thesoil
resistivityvalueisobtained, whenthe distance between H-S and S-ES is equal
(both a), itis the Wenner method. Forease of calculation,pleasemake the
electrodespacing amuch largerthan theburieddepth h,generallyshould
meet a> 20h,seethe figurebelow.
VII Operation
1．Switch on/off
PressthePOWER button to switch onandoff. Afterturning onthemachine,
the lowercorner shows"APO"andit willautomatically shutdown after15
minuteswhen it isnot operating.
2Battery Voltage Check

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Afterpoweringon,ifthe LCD shows alowbattery voltagesymbol “”,
itindicatesthatthebatteryisrunninglow.Pleasechargeitintime.The
batterypowerissufficienttoensuretheaccuracyof themeasurement.When
the battery powerdecreases, the powerindicator bardecreases.
3GroundVoltageMeasurement
One auxiliarygrounding rod isrequired forthe ground
voltagetest.
As long as the instrumentis connected to theground
through the tes
twire and the auxiliary groundingrod,the
other test wires of the instrument interface cannot be
connected to the Land Nwires ofthe commercial power
supply. Otherwise,the leakage mayoccur, and the circuit
breakermay start up andbe dangerous.
Ground voltage test cannot exceed 100V。
Grounding voltage: whenthe ground faultoftheelectrical equipment
occurs,thepotentialdifferencebetweenthegroundingdevicecasing,the
grounding wire, the grounding bodyand the zeropotential point,the
groundingvoltageistheearth'sreferencepoint,potentialdifferencewith
the earth,the earth is zero potentialpoint.
Anauxiliarygroundingrodisrequiredfor theground voltagetest.Note
the differencefrom thecommercial AC voltagetest.See thefollowingfigure:
Afterthe meter,auxiliary groundingrod andtest line areallconnected,
afterpoweron,pressfunctionbuttonU,andthe LCDshowsthetestresult.
4Wire resistance check
Inorder toimprove the precision and stability ofthegrounding
resistancemeasuredinthefield,theerrorcausedby thechangeof the wire
resistance due to the test line being used for a long time is avoided; To
avoidtheerrorcausedbythetestlinenotcompletelyinsertedinto the

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instrument interface orpoor contact;toavoid the error caused by the user
toreplace or lengthen thetest line, theline resistance checkfunction is
specially designedtomeasure thelow-value resistance more accurately.
Afterconnecting the test line and the meter, short theother end ofall
the test lines. As shown in the figure below, press the function button R
toswitch tothe corresponding groundresistance measurementposition.Press
“”keyto startcalibration,LED indicator flashes during calibration,
LCD countdowndisplay, LCD displayafter calibration.
Shutdowndoes notsave the verificationline resistance.Thenexttime
it is turned on,it needs to be recalibrated.
5Four-wire precision test grounding resistance
When testingthegrounding resistance, firstconfirm the
grounding voltage of thegroundingwire,thatis,the voltages
of Hand Eor Sand ES must be lessthan 20V. Ifthegrounding
voltageisabove5V, them
eter displays theNOISE symbol, then,
the measurement value ofthegroundingresistance may be
inaccurate.At thistime,themeasured groundingdeviceis first
de-
energizedso that thegrounding voltage islowered andthen
the grounding resistancetestis performed.
Four-wire test:The four-wire testeliminates the influenceof the
contactresistance(usually dirt orrust) onthemeasuredgroundingbody,
auxiliarygroundingbar,testclip,andtheinputinterfaceof theinstrument
tothemeasurement,caneliminate theimpactofwireresistanceon the
measurement, better thanthe three-wire test.
Seethefollowingfigure:Beginningwiththemeasuredobject,generally

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spaced5m~20m,respectively,the S, Hauxiliarygrounding rodis buried
deepintothegroundina straight line,connect thegroundingtestlines
(black,green, yellow,andred)fromthe E, ES, S,and Hinterfacesofthe
meterto theground electrode Eunder test, the auxiliary voltage electrode
S,andtheauxiliary current electrode H.
Th
edistancebetween themeasuredgrounding bodyEand the
current pole Hshould be at least 5times the buriedground depth
(h) ofthemeasuredgroundingbody,or 5timesthe buried ground
electrode length (d).
Measure the totalgrounding resistance of a
complexgrounding
system.Thedistance disthedistance of the largest diagonal
of the grounding system.
Duringthetest,the testleads cannot beintertwined with each
other. Otherwise, the test accuracy may be affected.
Foramulti-pointindependent grounding system orageodetic grounding
system,theusercanchoosealonger testline,and the electrode spacing
isgreater than 5timesthemaximum diagonal length ofthetestednetwork.
As shown below:

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R=r1∥r2∥r3∥r4∥r5∥r6∥…∥rn（r1 rnareallindependentgrounding
points）
R——meterreadings, totalgrounding resistanceof the entire grounding
system;
r1…rn——are all independentgroundingpoints, andgroundingbodies are
not connectedtogether under the ground;
RH——ground resistance of auxiliary currentpole H;
RS——ground resistance of auxiliary voltagepole S;
n——thenumber ofindependentgroundingpoints, themorepoints,the
smallerthe Rvalue.
Afterconnecting thetest line, pressthefunctionbutton Rto enterthe
ground resistancetestmode, andpressthe“TEST”key tostartthetest.There
isacountdownindicationduringthe testandstable data is displayed after
thetestiscompleted.Thatis,thegroundingresistancevalue RH of the
groundingresistancevalueandthe auxiliarycurrentpole H,thegrounding
resistancevalue RS of groundingresistancevalue Rand auxiliaryvoltage
pole S.
Asshown inthefollowing figure,the tested grounding resistance is2.77
Ω,the groundingresistanceoftheauxiliary currentRHis0.27KΩ,andthe
grounding resistance of theauxiliary voltage electrodeRSis0.22KΩ.

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6Three-wire Test Grounding Resistance
Three-wiretest:As shownbelow, short-circuittheES,Einterface of
the instrument,which isathree-wire test, instrument operation is the same
asfour-wiretest.The three-wiretest cannot eliminate the influence ofthe
wireresistanceonthemeasurement,norcaniteliminate theinfluenceof
the changeofthe contactresistancebetween theinstrument andthetestwire
andtheinfluence ofthechangebetweenthetestwireandtheauxiliary
grounding rod.Whenmeasuring, the oxidelayeron the surfaceof the ground
bodytobemeasured mustalso be removed.
7Two-wire Easy Test Grounding Resistance
Two-wiretest::Thismethodis asimple measurementmethod thatdoesnot
usethe auxiliary grounding rod.Itusesthegroundingelectrode withthe
smallestvalueofthe groundingresistanceastheauxiliarygrounding
electrode,anduses two simpletestlinestoconnecttheHS interfaceand
the E-ESinterface.).Theauxiliary ground rodsHand Smaybereplaced with
metallic groundpipessuchasmetalwater pipesand firehydrants,common
groundingofcommercialpowersystems,or lightning protectiongrounds of
buildings,etc.,take caretoremovethe oxide layer attheconnection point
of theselected metalauxiliarygroundingbodyduring measurement.Wiring
as shown below, the instrumentoperation same as thefour-wire test.
When using the commercialpowersystem groundingasan
auxiliary grounding polemeasurement, itmustbeconfirmed
that it is thegroundingpole of acommercialpowersystem.
Otherwise, the circuit breakermaystart upandbein danger.
Use asimpletwo-
wire methodto measurethegrounding
resistance,andtryto selectthegroundingbodywith asmall
re value astheauxiliarygroundingelectrodesothat the
meter reading iscloser tothe truevalue. When measuring,
Pleasetakeprecedence to ch
oosethe metal waterpipe and
metal fire hydrant as the auxiliary grounding electrode.

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Thesimpletwo-wiremethodmeasuresthegroundingresistance. The
instrumentreadingvalueisthesumofthegroundingresistanceof the
measuredgrounding bodyand the groundingresistanceofthecommercial
grounding body. That is：
RE=RX＋re
And：RE is themeterreading value；
RX isthegroundingresistancevalueofthe groundingbodyunder
test；
re isthegroundingresistancevalueofacommongroundingbodysuch
as acommercial powersystem.
Then, the grounding resistanceofthe measured grounding bodyis：
RX=RE－re
8Soil Resistivity Test
Thesoilresistivity ρisanimportantfactorthatdeterminesthe
grounding resistance ofthegrounding body.土壤电阻率ρ是决定接地体接地电
阻的重要因数。Differenttypes of soil,ofcourse,havedifferentsoil
resistivities,eventhesame kindof soil, becauseof different temperature
and moisture content,thesoilresistivity willalsohaveasignificant
change.Therefore,inordertohave acorrectbasisforthedesignofthe
groundingdevice, the designedgroundingdevice can better meet theneeds
of the actualwork, and thesoil resistivitymust bemeasured.
Thesoilresistivitywasmeasuredbythefour-polemethod(Winner
method).
The soil resistivity ρis calculated accordingtothe formula ρ=2π
aR (Ωm), andtheunit is Ωm,and：
a——Electrodespacing

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R——S-ES Resistance of soil between electrodes
Four-pole method (Winner method)：Connect the testleads as shownbelow.
Notethespacing betweentheauxiliarygroundingbarsandthedepthof
burial,bury H, S, ES, and Eauxiliary ground rodsin thegroundin astraight
line,connect thegrounding testleads (red, yellow,green, and black)from
the H, S, ES, and Econnectors of the instrument to the H, S, ES, and Eauxiliary
grounding rods under test.
Auxiliarygroundrodspacingsetting:Afterconnectingthetestline,press
thefunctionbutton ρtoenter thesoilresistivitytestmode, pressand
holdthe “SET”key(morethan3seconds)toenter thespacingsettingof
the auxiliarygrounding rod, shortpress " " to move thecursor, press
" "or""keyto changethe currentvalue(value arange:1m~100m),
longpress"SET"key (more than3seconds) to savethe set value aandreturn
to soilresistivity testmode.
Aftersetting value a,in soilresistivity test mode, press “TEST”key
to start the test, and count down to display the test progress. After the
testiscompleted,a stablesoil resistivityvalueis displayed.
Asshowninthefollowingfigure,themeasuredsoilresistivityis 47.23
Ωm,the groundingresistancevalue RH of theauxiliarycurrentelectrode
is0.34KΩ,andthegrounding resistance value RS oftheauxiliaryvoltage
electrode is 0.28KΩ.After thisdisplayis completed,it willautomatically
return back to desplay the testedsoil resistivity ρ.

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9．BacklightControl
Afterpower on,press “”keytoturnthe backlightonoroff,and
the backlightfunctionissuitable fordim places.Thedefaultbacklightturns
off every time youturn it on.
10．Alarm Setting
Afterpoweron, short press “”toturnon andoffthe alarm function.
Shortpress"SET"key toset the resistancealarm value, press ""key to
move the cursor, press " " or " " key to change the current size, and
then press "SET"key tosave and exit. Whenthe measuredvalueis greater
than the alarm critical setting value and the alarmfunctionis turned on,
the meterdisplays the ""symboland issues a “beep-beep-beep--”alarm
sound.The maximum valueoftheground voltagealarm settingis 100V, the
maximumvalueofthegroundresistancealarmsettingis3000Ω,and the
maximumvalueofthe soilresistivity alarm settingis 9999Ωm. As shown
below:
11．Data Lock/Storage
Afterthepower-onormeasurementiscompleted, shortpress"MEM"key
tolock the current displaydata,and automaticallynumbered and storage. If
thememory isfull, themeter displaysthe"FULL" symbol.Asshown below:
The measurement datais1032Ω.Short press “MEM”to displaythedata showed
thatitisstoredas thethirdgroup.

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12 Data Review/Delection
Afterthepoweron ormeasurementis completed,press and holdthe"MEM"
button (morethan 3seconds) to enter the datareviewmode.Theinterface
correspondingto the stored datainterfaceandthestoreddata groupnumber
flashalternately.Press " "or""key toselectthecorrespondingdata
ofthearraynumberwithastepby1,holddownthe""or""keyto
selectthearraynumberwithastep by5,thenpress"MEM"toexit.Seebelow
Inthefigurebelow,thenumber3isthe currentgroupnumber,and6is
the total group number. If nodata is stored,theLCDdisplays"NULL".See
the figurebelow.
Under datareviewstatus, press "SET"keytoenterdatadeletion, press
""or " " keytoselect"NO"or "YES", select "NO"and then press “SET”
key tonotreturn data review status, select "YES". Press the " SET"key again
todeletethestoreddata.After thedeletion,thefollowingfigureis
displayed.
13．Data Upload
ConnecttheUSBcommunicationcableofthecomputerandtheinstrument,
turn on the instrument andrunthemonitoringsoftware. If the USB connection
is successful,thestoredhistorical datacan beread,uploadedtothe
computer and saved.
The monitoringsoftware hason-line real-time monitoring andhistorical
queryfunctions,dynamicdisplay,alarmvaluesettingandalarmindication
function, and functions such as reading, viewing,savingandprinting of
historicaldata.

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VIII.BatteryInstructions
The instrumentispoweredbya6V4.5AH lead-acidbattery.Whenthe
batterypowerisreduced,the powerindicatorbarisreduced.Whenthevoltage
dropsto5V,thebatterysymbol “”isdisplayed.Pleasechargeintime.
Low voltage affects the measurementaccuracy.
IX Accessories
Instrument 1PC
Instrumentbag 1PC
Auxiliary groundingrod 4PCS
Monitoringsoftware CD1PC
USB communicationline1PC
Testline 4PCS
Simple test line 2PCS
6V Battery(built-in) 1PC
charger 1PC
Manual,certificate 1SET

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The contentsofthisusermanualcannotbe usedasa reason to use the productforspecialpurposes.
The companyisnotresponsible forotherlossescaused by use.
The companyreservesthe rightto modifythe contentsofthe usermanual. Ifthere isanychange, it will notbe
notified.
GuangZhou ZhengNeng ElectronicsTechnologyCo.
Address:2F, No.15 Baoshu Road, Taihe, Baiyun District,Guangzhou, Guangdong, China
Toll-free call：4000-1515-38
Tel：[phone]
Fax：[phone]
Post：510540
WebSite：www.znele.com