TENTECH MD1035x Manual de usuario

Formato: 137mm x 190mm

P. 31

P. 03

Manual de uso

Megóhmetro digital

Digital insulation tester User guide

TENTECH CORPORATION

7330 NW 66th ST - Miami, FL 33166

Phone: +1 305 938 0389 / Fax: +1 786 401 7165

www.tentech.com

MD1035x

1 kV digital insulation tester

User guide

GU-1564

Safety warnings

• Before to use this i strume t the User guide a d Safety war i gs must be read

a d u derstood.

• Safety procedures a d rules for worki g ear high voltage e ergized systems

must be observed duri g the use of this equipme t. The ge erated voltages may

be da gerous.

• Do ot co ect or disco ect the test leads duri g the measureme t.

• Do ot touch the test leads before the high voltage i dicator tur -off.

• Be careful ot to make short-circuit betwee the high voltage termi als a d the

“R” or “Guard” termi als while a measureme t is ru i g, because it could be

da gerous for the operator.

• Be sure that there are ot a y voltage differe ce betwee the poi ts to which the

equipme t will be co ected to, either betwee them a d grou d.

• The pa el, termi als a d co ectors of the equipme t must stay dry a d clea .

This equipment should be used only by a trained and ompetent

person, stri tly applying suitable safety rules.

Used symbols

Cautio , risk of electric shock.

Cautio , refer to User Guide.

Battery

Pri ter

Voltmeter

Equipme t complies with curre t EU Directives.

The rubbish bi with a li e through it mea s that i the Europea U io ,

the product must u dergo selective disposal for the recycli g of electric

a d electro ic material, i complia ce with Directive WEEE 2002/96/EC.

Index

1. Descriptio ......................................................................................................... 6

2. Co trol pa el fu ctio s ...................................................................................... 7

2.1. Co ectio s a d pa el items ...................................................................... 7

2.2. Keyboard .................................................................................................... 8

2.3. I dicators .................................................................................................. 10

2.3.1. Display ............................................................................................... 10

2.3.2. A alog bargraph ................................................................................. 10

2.3.3. Built-i chro ometer ........................................................................... 11

2.3.4. Real time clock ................................................................................... 11

2.3.5. Test umber ....................................................................................... 11

2.3.6. Model a d serial umber .................................................................... 11

2.3.7. High voltage i dicator ......................................................................... 11

3. Power supply ................................................................................................... 12

3.1. Battery status check .................................................................................. 12

3.2. Battery charger ......................................................................................... 13

4. Co ecti g the equipme t ............................................................................... 14

4.1. Usi g the Guard termi al .......................................................................... 15

5. Test setti gs .................................................................................................... 16

5.1. Test voltage setti gs ................................................................................. 16

5.2. “TIMER” Mode .......................................................................................... 17

5.3. “Pass / Fail” Test mode ............................................................................. 18

6. How to perform tests ........................................................................................ 19

6.1. Polarizatio i dex (PI) ............................................................................... 20

6.2. Dielectric Absorptio I dex (DAI) .............................................................. 20

7. Other fu ctio s ................................................................................................ 21

7.1. Filter.......................................................................................................... 21

7.2. Voltmeter .................................................................................................. 21

7.3. Hold .......................................................................................................... 22

7.4. I ter al memory ........................................................................................ 22

7.5. Auto power-off........................................................................................... 22

8. Software .......................................................................................................... 23

8.1. USB Drivers .............................................................................................. 23

8.1. T-Logger software ..................................................................................... 23

9. Pri ter (optio al) .............................................................................................. 24

10. Tech ical specificatio s ................................................................................. 25

11. Applicatio ote 32 ........................................................................................ 27

12. Warra ty ........................................................................................................ 30

1. Des ription

The TENTECH MD1035x is a smart, microprocessor-co trolled, 1 kV

i sulatio tester. Besides the co ve tio al measureme t of i sulatio

resista ces up to 1 TΩ, its adva ced features allow to automatically

measure both the Polarizatio I dex a d Dielectric Absorptio I dex.

This i sulatio tester is portable, battery-powered equipme t. Test

voltage may be chose from 100 V to 1 kV i 50 V i creme ts. Due to its

measureme t pri ciple (actual voltage a d curre t readi gs) the accuracy

of resista ce measureme t is ot affected by a y test voltage error.

The built-i chro ometer automatically cou ts the elapsed time si ce the

start of measureme t. Measured values are tra smitted through the data

output (USB). Furthermore, the measured values are stored i a o -

volatile i ter al memory. Up to 4000 measureme ts may be stored, to be

tra sferred afterward to a computer ru i g the T-Logger program. This

software allows a further a alysis of the test results, i cludi g a graphical

represe tatio a d automatic report ge eratio . The real time clock a d

cale dar a d the seque tial test umber facilitates the ide tificatio of

each test, a d the orga izatio of a predictive mai te a ce system by

tre d a alysis.

Some other adva ced features are useful to ru the most sophisticated

i sulatio a alysis. Co figurable Pass-Fail a d timed measureme ts are

automatically performed, with a very simple a d user-frie dly setup. The

measureme t parameters are stored i the o -volatile memory for a

easy co figuratio .

The cabi et is stro g a d lightweight, easy to carry, impact-resista t a d

suitable to be used u der severe weather co ditio s. Thus the i sulatio

tester supplies very reliable a d accurate measureme ts both i

laboratory a d out i the field.

2. Control panel fun tions

2.1. Conne tions and panel items

 Voltage output termi al (-V)

 Zero referen e termi al (+R)

 Guard termi al (G)

 Display

 Keyboard

 USB i terface

 Power supply input

 Paper feed co trol (optio al pri ter)

2.2. Keyboard

Button

Fun tion LED

O /Off switch. -



It activates the filter that mi imizes exter al

oise i terfere ce.

I dicates filter fu ctio

is o .



It shows the battery charge status o the

display.

I dicates that the

battery charger is i

operatio .



Whe activated, it allows to select the test

voltage.

I dicates V TEST key



Fast selectio of 100 V test voltage. 100 V test voltage.



Fast selectio of 250 V test voltage. 250 V test voltage.



Fast selectio of 500 V test voltage. 500 V test voltage.



Fast selectio of 1000 V test voltage. 1000 V test voltage.



Whe activated, it allows to program the

duratio of the test.

I dicates TIMER key

o .



Whe activated, it allows to program the limit of

the “Pass-Fail test”.

I dicates LIM fu ctio

is o .



Tur s O /Off the pri ti g of the measured

values o the pri ter (optio al pri ter).

The pri ter is o .



I crease the value that is bei g programmed. -



Decrease the value that is bei g programmed. -



Starts the test. I dicates that a test is

bei g carried out.



Displays the actual voltage applied. -



Holds the last readi g o the display. Hold fu ctio is o .



It displays the calculated value as the result of a

Polarizatio I dex (PI). -



It displays the calculated value as the result of a

Dielectric Absorptio I dex (DAI). -



E d of test. -

2.3. Indi ators

2.3.1. Display

Alpha umeric LCD where the test umber, measureme t results, the

measuri g u it, the time i dicatio (i mi utes a d seco ds), the a alog

i dicatio by mea s of a bargraph a d messages to the operator are

displayed.

2.3.2. Analog bargraph

Duri g a measureme t, the operator must observe at the higher part of

the bargraph, where the measured values are displayed. The bargraph

shows the gradual variatio of the i sulatio resista ce value. The

bargraph scale is logarithmic, by decades, however, to make the readi gs

easier, it is li ear i side the segme t which represe ts each decade. The

followi g figure allows to visualize this co cept:

The bigger marks are the begi i g of each decade (1 MΩ - 10 MΩ -

100 MΩ - etc). Betwee 10 MΩ a d 100 MΩ there are 3 i termediate

i dicatio s which correspo ds to 25 MΩ - 50 MΩ - 75 MΩ. The same

co cept ca be applied to the others decades.

To check the battery charge status, the operator must observe the lower

part of the bargraph. Keep pressed the butto , the bargraph will

i dicate the remai i g perce tage of the battery charge.

2.3.3. Built-in hronometer

It features the elapsed time (i mi utes a d seco ds) si ce test voltage is

applied.

2.3.4. Real time lo k

It has a real time clock with date, hours a d mi utes i dicatio , to make

ide tificatio of tests recorded i paper or i memory easier.

2.3.5. Test number

Tests are automatically umbered by the equipme t to make their

ide tificatio easier. The test umber is pri ted at the begi i g of each

test a d it is stored i memory.

2.3.6. Model and serial number

At the begi i g of each test, the equipme t model, as well its serial

umber, are registered, maki g it possible to relate the obtai ed results

with their respective equipme t Calibratio Certificate.

2.3.7. High voltage indi ator

A light i dicator war

s the occurre ce of high voltage o the

output termi al duri g the measureme t a d keeps lit u til the

dischargi g process has bee completed.

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