Minipa MTR-1522 User manual

1
TERRÔMETRO DIGITAL
MANUAL DE INSTRUÇÕES
Instructions Manual
Manual de Instrucciones
* Imagem meramente ilustrativa./Only illustrative image./
Imagen meramente ilustrativa.
TelurímetroDigital
Digital Earth Meter
MTR-1522
TEST
DIGITAL EARTH TESTER
LIGHT/LOAD HOLD/SAVE
OFF
OFF
EARTH
VOLTAGE
40
400
4000
MAX
400V
CAT III 600V
MTR-1522
E
V P C

1
SUMÁRIO
1)GENERAL VISION 02
2) ACCESSORIES 03
3) SAFETY INFORMATION 03
4) RULES FOR A SAFETY OPERATION 04
5) INTERNATIONAL ELETRIC SYMBOLS 05
6) DEVICE DESCRIPTION 06
7) DEVICE CONFIGURATION 07
A. Battery level 07
B. Probes conection 07
8) OPERATION 08
A. Precision Measure 08
B. Earth Voltage Measure 09
C. Earth Resistance Measure 10
D. Simple Measure 11
E. Especial Function 12
9) ESPECIFICATIONS 13
 A.GeneralEspecications 13
 B.EletricEspecications 14
10) MAINTENANCE 15
A. Battery Replacement 15
B. Cleaning 15
C. Repair 15
11) WARRANTY 17
 A.WarrantyCerticateRegistration 18

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1) GENERAL VISION
The earth meter MTR-1522 is a macromachined device
with high precision and reliability. Able to measure the earth
resistence of eletric cables, eletric instalations and lightning
rod equipaments. Beyond that, is able to measure the earth
voltage.
Obs: this device should not be use in outdoor environment
that possess risks, like rain, lightning incidences, etc.
2) ACCESSORIES
After receive your instrument, please, check for the following
accessories:
Item Description Quantity
1 Instructions Manual 1
2Tests Cables 3 parts
3Auxiliary Stakes 2 parts
4 Battery 1,5V (Type AA) 6 batteries
5 Crocodile Jaw 1 set
6 Carrying Case 1
In case of a missing or damaged component, contact your
dealer immediately.

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3) SAFETY INFORMATION
This instructions manual contains orientations to the user and
safety instructions for device handle. Please, read the manual
before handle with the device.
● Beforeusethedevice,please,understandthisinstruction
manual content.
● Keeptheinstructionsmanualinaneasilyaccessibleplace
for a possible consultation during operation.
● Whenusingtheinstrument,followthetestprocedureas
stated in the instructions manual.
● Lookcarefullyinthesafetyinformationscontainesinthis
manual.
● Toavoyaccidentesordamagestothedevice,followall
the safety recomentadions.

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4) RULES FOR A SAFE OPERATION
The symbol “ ” has three meanings in this manual. The
user must look carefully for the symbol “ ” during operation:
Danger - Identify conditions and actions that may result risk
or even death.
Warning - identify conditions and actions that may result
risk or even death.
Caution - identify conditions and actions that represents
damage to the device.
DANGER
● Donotusethedeviceinexplosiveenviromentsthatmay
causereorexplosions.
● Donotusethedeviceinhumidenvironmentsorperform
conections while your hands are wet.
● Neverexceedthemeasurementslimitsoftheinstrument.
● Neveropenthebatterycompartmentduringatest.
WARNING
● Neverusethedeviceifitexposemetalparts.
● Donotdissamblethedevice.Ifanyrepairisneccessary,
contact an authorized service center.

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● Neverexchangethebatteryoropenthebattery
compartment when the device is humid. Use a softy cloth
to dry the device to proced with the exchange.
● Assurethatthedeviceisoffforbatteryexchangeoropen
the battery content.
CAUTION
● Makesurethattheterminalsoftheprobesareconnectedto
appropriate terminals of the instrument before performing
a measurement.
● Removethebatterieswhenstorestheinstrumentforlong
periods.
● Donotexposetheinstrumenttohightemperaturelevels
or humid environments.
● Useasoftcloathandsoftdetergenttocleantheinstrument
surface. Do not use abrasives or solventsproducts.
● Ifthedeviceishumid,drybeforestoreit.
5) INTERNATIONALS ELETRIC SYMBOLS
Danger, warning, caution. Double isolation
AC Ground
European Conformity

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6) DEVICE DESCRIPTION

 



 









 

















Figura 1
1.LCDDisplay
2.ButtonLIGHT/LOAD
3.ButtonHOLD/SAVE
4. Button TEST
5.FunctionON/OFF
6. Input Terminals
7. Three wires tests probes
8. Two wires tests probes
9. Auxiliary Stakes

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7) DEVICE CONFIGURATION
A. Battery Level
Select the function EARTH VOLTAGE ou EARTH
RESISTANCE.Ifthebatteryindicationis“ ” means low
battery and it need to be exchange, otherwise, the device will
not operate correctly.
Battery Symbol Battery Voltage
≥8,2V
7,8V ~ 8,1V
7,4V ~ 7,7V
7,1V ~ 7,3V
≤7,0V
B. Probes Conection
Make sure that all the probes are tightly conected to the
device input terminals. A loose conection can result incorrect
measurements.

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8) OPERATION
Warning
When the device is developing ground resistance tests,
the highest voltage between E and C must be 50V AC.
Do not touch the external part of the probes or the au-
xiliary stakes, to avoid eletric shock danger.
A. Precision Measure
Place both stakes in the ground. The smallest distance
between the electrode (E), the catheter (P) and the auxiliar
stake(C)mustbebetween5~10meters,likegure2.


 














 








Figure 2

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Note
● Checkthegroundhumidwheretheauxiliarystakeswill
beplaced.Ifthegroudistodry,moistitalittle.Rocky
andsandysoilsalsonneedtobemoistedbeforetesting.
● Ifthetestsiteisinanurbancentercoveredinconcrete
anddifcultaccesstothestakes,usetwosteelplates
25cmx25cm(orthestakespre-existing),placethemho-
rizontallyovertheconcretesurfacethencoveritwitha
moistcloth.Replacethemeasureearthinthissituation,
becauseingeneralcasesitstillcanbeused.
B. Earth Voltage Measure
WARNING
The earth voltage test only works in V and E. The C and P
cables must be separated, otherwise, the device is in risk
of being damaged and the user suffer injuries.
SelectthefunctionEARTHVOLTAGEforvoltageexhibition
on the display. Conect tghe probes in V and E then conect
to the test point. The earth voltage value will be exhibited on
the display. In this case of measure, the button TEST do not
need to be pressed.
If the measure value is bigger than 10V, turn off all the volt-
age related equipaments then wait until the display reads
zero, otherwise, the residual voltage will affect the earth
resistance precision.

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C.Earth Resistance Measure
SelectthefunctionEARTHRESISTANCE4000Ω(maximum
range), press the button TEST then the display will show the
earth resistance value. If the value of the resistence is lower
than400Ω,selectthefunction400Ωthenthedisplaywillshow
the earth resistance value. If the value of the resistence is
lowerthan40Ω,selectthefunction40Ωthenthedisplaywill
show the earth resistance value. Summarizing: select your
measurement closest range to obtain the best precision.
Press the button TEST and the button will light up, it means
that the device is performing the measure.
Note
●WhenCorEareincorrectlyconected,theearthresistance
will exceed the load or the tested terminal is open, the
displaywillshow“----Ω”thenwillbeneccessarycheckall
theconctions,thegroundhumidityoriftheauxilliarystakes
areclosetotheearth.
●Whentheearthresistanceisbiggerthantheselectedrange
,thedisplaywillshow“OL”(overload)inthefollowingcases:
- whentheselectedrangeis40Ωandtheresistancemeasure
islowerthan14kΩ;
- whentheselectedrangeis400Ωandtheresistancemeasure
islowerthan26kΩ;
- when the selected range is 4000Ω and the resistance
measureislowerthan78kΩ.
●Iftheauxiliarystakesareirregularortouchothermaterials,
thiswillaffectthemeasurement.Whenconecttheprobes,
cleantheauxiliarystakes.Iftheauxiliarystakesaretoo

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 large,ashiftintherangecanbedone.
D. Simple Measure
Danger
To avoy eletrical shock risks, be careful when using a
grounding point of commercial electric power systems
as a point of reference test.
This method can be used when there is not possible to use
the auxiliary stakes. The two wire test method (using the
terminals E and P/C) can be applied in grounding of build-
ings, grounding wire, showers, etc., using the grounding of
the object to be measured, as Figure 3:


 


























Figura 3
When using this method, P and C must be conected at the
same time.

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E. Special Functions
●Auto Shutdown
The device will turns on when the buton is pressed and some
function is selected. The auto shutdown happens after 10
minutes to save battery (except when the device is realizing
ground resistance tests).
●Backlight
When performing the tests in poorly lit areas, you can use
the backlight of the display.
Pressingthebutton“LIGHT/LOAD”,thedisplaybacklightwill
light up and the corresponding icon will appear.
Press“LIGHT/LOAD”againtoturnoffthebacklight.
●Hold
Duringthetests,pressthebutton“HOLD/SAVE”tofreeze
the presented data shown on display.
Press “HOLD/SAVE” again to exit the function and exhibit
the actual value.
●Storage
1. Data Storage: press the button “HOLD/SAVE” for two
seconds to storage the data in that moment, shown by
thedisplay.Press“HOLD/SAVE”againtosavedesecond
data and so on.
 Todisablethefunction,press“HOLD/SAVE”fortwosec-
onds.
2.ReadingData:pressthebutton“LIGHT/LOAD”fortwosec-
onds then the display will show the saved data number 01.

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 Press“LIGHT/LOAD”againthenthedisplaywillshowthe
saved data number 02 e so on until the 20th saved data.
Ifyouwanttoreturntopreviousdata,press“HOLD/SAVE”
once(inthiscase,“HOLD/SAVE”and“LIGHT/LOAD”are
working as “up” and “down”).
 Todisablethefunction,press“LIGHT/LOAD”fortwoseconds.
3. Erase the saved data: pressthe buttons“HOLD/SAVE”
and“LIGHT/LOAD”simultaneouslythenturnonthedevice.
Thedisplaywillshow“CL.”andallthedatawillbeerased.
9)Specication
A. General Specication
●Display:LCD33/4digits,4000counts
●Functions: Earth voltage measure and earth resistance
measure.
●OverRangeIndications:“OL”isshown.
●AutoPowerOff:10 minutes.
●DataHold
●3and4WiresTests.
●Internalmemory:20 data.
●Temperature:Operation:5°C~40°C,RH≤80%
   Storage:-20°C~60°C,RH≤75%
●Altitude: Under 2000m.
●Alimentation: 6 batteries AA 1,5V.
●Conformity: IEC 61557-1, IEC 61557-1,5, IEC 61010-2-31,
IEC 61010-1, CAT III 600V.
●PollutionDegree: 2
●Dimentions:160(A)x70,5(L)x100(P)mm
●Weight: about 560g.

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B. Eletrical Specications
●Precision:±(a%read+bdigits),Guaranteedfor1year.
●OperationTemperature:20°C±5°C. Relativehumidity:
≤75%.
The specication applies between 10% to 100% of the,
measurement range.
A. Ground Voltage
Ranges Resolution Accuracy
400V 0,1V ±(1,0%+6)
Observations:
●Averageresponse.
●FrequencyResponse:50Hz/60Hz.
●OverloadProtection:600VAC(per30seconds).
●InputImpedance:20MΩ
B. Grounding Resistance
Range Resolution Precision
40Ω 0,01Ω ±(2,0%+20)
400Ω 0,1Ω
±(2,0%+3)
4000Ω 1Ω
Observation:
●ResistanceTests;
 FrequencyTests:820Hz.
Current: 40 postions around 3,2mA.
●InputImpedance:20MΩ

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10) MAINTENANCE
A. Battery Replacement
When the low battery indication appear on the display, per-
form the replacement immediately as described bellow:
1. Turn Off the device and remove the probes.
2. Remove the screw from the bottom and open the battery
compartment.
3. Replace all the 6 batteries for new ones.
4. After the replacement, replace the battery compartment
andthescrewrmly.
Remove all the batteries if the instrument is not used for a
longtime,becausethereisariskofthebatteryuidleak
and corrode the battery compartment.
B. Cleaning
A soft cloth and mild detergent should be used to clean the
surface of the instrument, since solvent substances can cor-
rode the display.
C. Repair
Please contact any authorized service center or our after
sales service if any of the following results happen:
- The instrument is damaged;
- The display is out of the normal operations conditions;
- Considerable deviation of the measured values when per-
forming a normal procedure;
- Buttons confusing or operating incorrectly.

16
If necessary to perform any repair, take the instrument to an
specialized technical and authorized by Minipa to perform
the service.

17
11) WARRANTY
This instrument was carefully calibrated and inspected. If any
failure occurs under normal use, this product will be repaired
according to warranty conditions and limitations.
WARRANTY
SERIAL Nº MODEL MTR-1522
1- The warranty
2- It will be repaired free of charge in following cases:
A) Manufacturing defects or damages occurred under normal
use of instrument within the warranty period.
B) The services to correct the failure will be done only in au
 thorizedservicecenterorpersonalwillbeallowedtoxthis
product.
C) If product is purchased through a Minipa is authorized dealer.
3- Warranty will be void in case:
A)It has been misused, altered, neglected or damaged by accident
or abnormal conditions of operation or handling.
B)The instrument shows violations by a non authorized repair
center.
4- This warranty does not apply to fuses, dry cells, batteries and
accessories as test leads, carrying case, thermo couple, etc.
5- For instrument with software, Minipa assumes responsibility that the
softwarewilloperateinaccordancewithitsfunctionalspecications
for 90 days.Minipa will not guarantee that the software will be error
free or operate without interruption.
6- Minipa assumes no risk for damage in transit or transportation
costs.
7- Warrantywillbevalidonlyaftertheregistrationofthiscerticate
Name:    
Address: City:
State: Phone:
InvoiceN°:  Date:
SerialN°:  
NameroftheDealer:

18
A. Warranty Certicate Registration
The registration can be made by following ways:
-Mail:Sendacopyofwarrantycerticatecorrectlylled
to the following address.
MinipadoBrasilLtda.
Att: Serviço de Atendimento ao Cliente
Av.CarlosLiviero,59-VilaLiviero
CEP: 04186-100 - São Paulo - SP
-Fax:Sendacopyofwarrantycerticatecorrectlylled
by fax number 0xx11-5071-2679.
- e-mail: Scanning this formand attach to your e-mail. Please
send to [email protected].
-Site:Registerthewarrantycerticatebyhttp://www.minipa.
com.br/sac.
IMPORTANT
The warranty conditions and limitations will be valid only to
thecerticatescorrectlyregistered.incasethepurchaser
did not register, a sales receipt showing hte date of pur-
chase will be required.
Manualspecications.
Revision: 00
Dat of Issue: 25/03/2013
MINIPA DO BRASIL LTDA.
Av.CarlosLiviero,59-VilaLiviero
04186-100 - São Paulo - SP - Brasil

19
MINIPA DO BRASIL LTDA.
Av.CarlosLiviero,59-VilaLiviero
04186-100 - São Paulo - SP - Brasil
MINIPA ELECTRONICS USA INC.
10899-Kinghurst#220
Houston-Texas-77099-USA
MINIPA DO BRASIL LTDA.
Rua Dna. Francisca, 8300 - Módulo 4
Módulo A - 89219-600 - Joinville/SC - Brasil
DO BRASIL LTDA. ALL RIGHTS RESERVED / TODOS LOS DERECHOS RESERVADOSTODOS OS DIREITOS RESERVADOS /