Daetron MC400 manuel de l'utilisateur

8/10/2019 Daetron MC400 manuel de l'utilisateur

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Table

of

Contentt

SECTION 1 GENERAL INFORMATION

1.1 INTRODUCTION

1.2

INSTALliNG

THE

BAlTERV

1.3 PREDICTING BATTERY FAILURE.

1.4 USING THE OPTIONAL AC BATTERY ADAPTOR (DAETRON

MODEL

PS100)

1.5

ACCESSORIES INCLUDED

1.8 GETT1NG STARTED

1.7 ENTERING IN INFORMATION

ON

THE KEYPAD

SECTION 2 GENERAL OPERAT10N

2.1 MEASURING CAPACITANCE

2.2

USING THE FUNCTION

HOLD

KEY

2.3 ENTERING A ZERO VALUE FROM THE

KEYPAD

2.4

MANUAL

RANGE OPERATION

2.5 MEASURING LEAKAGE

2.8 SORTING CAPACITORS

1

1

2

2

3

3

3

5

6

8

1

7

8

9


3/47

2.7 CABLE MEASUREMENTS 11

2.8

DIELECTRIC ABSORPTION

12

2.9

COMPONENT TESTS

13

2.10 TESTING POSITNE AND NEGATIVE

3

PINNED VOLTAGE REGULATORS

17

2.11

ZENER DIODES AND RECT\FIE

1 S

SECTION

3

OPERATING CONSIDERATIONS AND APPUCATION NOTES

3.1 FREEZtNG THE DISPLAY WITH THE 'HOLD/FUNCTION' KEY

3.2

ZEROING

THE

MC400

3.3 MANUAL

RANGE

3.4 LEAKAGE, INSULATION

RES

ISTANC

E,

CURRENT

3.6 ACCURACY AND RANGE OF LEAKAGE MEASUREMENT

3.6 SORTING CAPACITORS (ALSO

SEE

3.9)

3.7 CABLE MEASUREMENTS

3.8 LOCATI

NG

BREAKS IN CABLES

3.9 DIELECTRIC ABSORPTION (DA)

3

.1

0 ZENER DIODES AND RECTIFI

ERS

19

19

19

20

21

23

24

25

27

28

30


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3.11 ZENER DIODES

3.141

RECT1AERS

3.16 ANALVZING AND TESTING SEMICONDUCTOR COMPONENTS

3.16 VOLTAGE REGULATORS

3.17 POWER

3.18 TIPS

ON

SAVING POWER

SECTION

41

SECTION

41

MAINTENANCE AND CALIBRATION

4.1 CAUBRATION

4.2 ZENER DIODE CAUBRATION

4.3

MAINTENANCE INPUT PROTECTION

4.-f IF YOUR INSTRUMENT STOPS WORKING FUSE REPLACEMENT

SECTION 6 SPECIFICATIONS

SECTION 8

WARRANTY

30

32

32

35

36

36

37

37

39

39

39


5/47

SECTION 1 GENERAL INFORMATION

1.1 INTRODUCTION

The Oaetron

model

MC400 Ia a compact hand held


6/47

1.2 INSTAU.JNG THE BATTERY

To lntt&ll a

bdery m w

aure

1he

power

awttch

Ia In the off poaiUon. Slide

off

1he back cover

and cUI) the 8 \IOit

battary

to the baletY clip and lnaert It bealde the apate fu. . holder. SUde the

ewer

back on.

Nwttya uae

an alkaline bdery aa thia Will

laat

a lot longer than regular Zinc

carbon

or heavy duty bdertea. If ualng a ni CAD battery, the

ability

to read zener dlodea

or

anallze com

ponenta

or

read leakage

wtll

be Impaired

as

It

has

a slightly lower

\IOitage

.

When the battery geta too low

the

dlaplay will read

the

word 'b.Atl" and no olher functioni will

be

avaiaabie.

rT IS IMPORTANT THAT A GOOD QUAU1Y BATrERY

BE

INSTALLED AS THE

WARRANTY

IS VOlD I f THE

UNJT

IS DAMAGED BY A LEAKY BATrERY.

1.3

PREDICTING

BATTERY FAILURE.

The MC400 uaea an UNegulated 25 \IOit aource c:senvec:s from muiUplytng the battery \IOitage

for

tenng

zener dlodea, leaky capacltora and

anaJyalng

components. Since

thla \IOitage

Ia unregu

lated It giVes a preuy good Idea on the condruon of the battery. A fresh ballery will create a multi

plied \IOitage of approximately 20 to 22 \IOita. A weak battery from 13 to 15

\lOtta.

By monitoring

thta

voltage ballery failure can be predicted a t the bataery age a. to

uae

thla feawre the aection

on Zener dlodea but don't &nata.ll any dlodea.

PAGE2


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1.4 USJNG THE OPTIONAL AC

8A TERY

ADAPTOR (DAETRON MODEL

PS1

00)

Thia option

Ia

highly recommendttd as thtt o m p o n t ~ n t analyser will not work at its full

timum level When being run on batteries only.

th.lt

to say that any components cannot bet

Matyzod

u

tho baUory degrade With ago. Whonwer a function thai uses tho high voltage on

the MC400

11

actrvated It drawa a lot

of

current It Is highly recommended that any arne these

functiona are used, the AC adaptor tnstcllied or elsu the life o the battery wtll be greatly

reduced. Read the following procedure very careiully. Insert

the

plug

of

the adaptor into the

MC400 jacK on the top of tho unit next insert the adaptor into tho AC ouuet. Failure to uae thla

procedure may result

In

damage to th., AC adaptor. Also using an AC adaptor

wUI

a.llow a higher

voltage Zener diodes to be read. (Max. of 25 .5 VDC). tne MC400'a one year warranty Is

voided

on irf unna operaung on any other thCAn the DAETRON PS100 or a unit tnaJ has been approved

byDACTRON.

1.5 ACCESSORIES INCLUDED

Three teat leada are Included

for

use with both the capacitOr

locket

and tran1iator

locket

In

both caaea the 1ead1 are generally used

t r

use with hard to connect part1. the leadl are a pin plug

auembly with alliga1or clips designea to be inserted in any socket type receptacle. the lnsertlon

Into the trana11tor socket may

b i

a bit ~ t i f f

.J

firat but w.u graduaJiy eaae up

aa

the unit becomea

broken

in.

PAGE 3


8/47

:

1.6 GElTING STARTED

Oetpite lt't complicated looking appearance the MO.OO It very

euy

to ute When Initially

chcking capacitors. th uni11t read)l to teat capacitor when the

power

awttch I t turned on. Before

placing the capacitor In the capacitor aocket make aure to dlacharge the capacitor. the capacitor

lOCket

+

and receptacle have a large wauage retlator connected to nWhen the power twitch

It

In

the

otr

potltion. So

If

your

not ture Whether your capacitor

It

dltcharged, make

ture

to

ahort the leada

or

lnaert the unit Into the aocket

When

the power

awttch

It

In the 'off' potiUon. Alto

obaerve

'polarity

When

connecting polartzed capacitors.

you can

aee

there

Ia

no zero potentiometer. the MC400 will automatically zero

any

capacitance up to about

150

pF at the Input terminal

When

Initially turned on. So

If

you

want

to

meuure tmaJI value capacltort make aure

to

remove them before powenng up. When reading

capacitors In the pF range alwayl manually zero the MC400 before each reading by r ~ t l n g the

RED zero

key

.

Becauae the unit

Ia

fully autoranglng there

Ia

no need to se lect

any

particular range u thlt

Ia

done automallcaJiy. there

I t

a manual capability

that

will aetect a particular range. See MANUAL

RANGING

The Me-tOO alto hu atandard banana

Jacka If

the uaer i t h ~ to uae longer leada. the

unit

It

tupplled with 3 amaJI type leada tultable for capacttancea u deacnbed In aecUon 1.5.

Never apply a voltage to the teat jackt or aocket, aa damage may occur even though It Ia

fuae protected.

PAGE ..

---------------------------------------------------------------------


9/47

When there I t no capacitance to be read the

ditplay

wlllthow ellher 000.0 or 000. tf the

uaer

111ea

to n.ad a capacitor and gets a mlnua dlaplay

or

a n.adlng then remove the capacitor and

preu the 'wh.lte' ZERO key (aee zeroing the MC400).

When taking general readings always make sure to wait a few aeconda

for

the readlnga to

atablllze u the capacitor may have been lnaerted Into the middle

of

a convertlon. a 11pecial

ly true when operating any of the varloua featurea

of

the MC400. On aome feature a alight drtftlng

might cause exaggerated drltung

When

that particular feature

ia

activated due to the rounding and

truncaang of dala during caacuialiona.

The uaer ahould be aware that any type of capacitor (ceramic, electrol)1ic, paper, etc.)

can

cau.e

marginal, drifting

or

lnconalatant readings

If

the capacnor

Ia

not performing to

Ita

rated

capablltty. even many good capacitors will dlaplay different readlnga Within

a

few minutes time.

Capacitance will alao vary with applied voltage as well

as

length of time under that voltage, and

temperature

(unleu It I t an

extremely atable type

like a NPO

or COG type).

When meaauring capacitors between 100 and

10,

ooo uF aomeumea the dlaplay will

nash

'OUER'

for

awhile until enough conversions have been accumulated to display a

counl

This doea

not

neceuartly

mean

that

the capacitor is overranged.

Be

patience when meaauring theae large

capacitors as the MetOO ltlaldng meaaurementa and a valid count wm be dlaplayed eventually. A

180,000uF capacitor

for

example will

take

approximately 40 aeconda before a display Ia available.

Larger capacitors

taKe

o r r e s p o n d i n g ~ larger times. When reading capacitors In the pF range,

use a batlely for beat reaurta

u

an AC

adaptor may cauae drifting eapecl&lly with very

1maU

valuea.

PAGES


10/47

1.7 ENTERING IN INFORMATION

ON

THE KEYPAD

When p r e u l n ~ any key on the keyboard all of the LED lamp Will f lu

.h

and the beeper wi

aound (on moat kay entrtea)

to

Indicate a valid kay entry. the mlcroproceaaor

poUa

the keyboard

In

between conver tiona. therefore

the uter

mutt be patient when trying

to

activate

any

feature

e.peclal ly when a large value capacnor

It

being read, u during thai charge or dltcharge period

the keyboard It lnacceuable. So make ture to keep your finger on

the

key

for

a ltule While unU

the

Leb't f luh. There are some tymbolt on the keyboard that are not

uUllzed

u they are reterved

for compatlbUity wtth future model.

AnyUme numerical Information

With

decimal

polnb It

being entered, the

dltplay

may

or

ma

not

l t p l ~

the Initial decimal point on the right of the LSD. Some of the LCD

d l p l ~

that are in

dalled on the MC400 do not have the O.P. while othen may have.

thlt

depend on the genera

avallabUily of the varioua brand

of

LCO di1playt available during production runt.

If

the

O.P

doetn't appear

lntUaJiy

then

It

will appear at lhe 2nd LSD If another number 11 entered ln.

[

8.8.8.8.]

,-,

,-,

B

0.0. .

PAGE6


11/47

SEcnON 2 GENERAL OPERATION

2.1 MEASURING CAPACITANCE

1. Discharge capacitor by shorting leads together.

2.

Remove

any

capacitor from the capacitor socket and tum the untt on.

3.

Pre

the red zero

key.

4.

lnaert lhe capacitor Into lhe capacitor socket

6.

Read the value from the

dltplay

and the electrical unit from on

of

the leD larnpa In pF, nF.

uFor mF.

2.2 USING THE

FUNCTION HOLD

KEY

Uaed for freezJng the dlaplay even If the capacitor

I t

removed.

Preuthe white

HOLD

key once to freeze the dltplay and agaJn to releue the dlaplay.

not available In

OA,

Zener and Component modea.

2.3 ENTERING A ZERO

VALUE

FROM

THE

KEYPAD

1. Enter the value directly on the keypad

by

prettlng

arry

of the numerical red keyt.

2. Preu the

red

zero key.

3. Preta ehher the grey pF, nF, or uF keya.

PAGE7


12/47

Maximum value I t 100 uF.

All ubsequent entrtet wtll

add

themaetve to Whatever zero value Ia already entered ln.

2.4 MANUAL RANQE OPERATION

1. Prell

the

White FUNCTION key.

2.

Pre

the green MANUAL key.

3.

Prttt

any

green range

keyt

to obtain

1he

dealred range.

4.

to terminate

pre

the white FUnCUOn key.

-

5.

and then the green

manuaJ key.

OVerrange Ia Indicated

by

the dltplay showing OUEr.

2.5 MEASURING LEAKAGE

1. Select the

proper

output

teat

voltage by

preulng

the red

LEAKAGE

key.

The dltplay will ahow

AdJt for

adjut voltage.

2.

Preas either the number 1

key

for

approx.

22

to

25

volts, the number 2

key

for

approx. 1

to 12 volts

or

the number 3 key

for

approx. 6 to 8 vona DC.

The dlaplay Will show the selected voltage.

(NOTE: the vottag will vary wl'th babry condltiona).

4. Preaa

the white FUNCTION key When

1he

dlaplayed voltage

Ia 1he

dealred level.

The dlaplay will ahow teSt

PAGES


13/47

5. lnaert 2 leada Into the zener anode and cathode aocketa of the tranalator aocketa.

6. Connect the capacitor

With

the alligator clipa while obaervtng pofartty If any (Anode Ia ground,

cathode Ia

+ ).

7 Preu the

teSt

key

and al low the capacitor to charge

unUI

It come a to real

8.

If the capacitor I not leaky It will read none Indicate no leakage.

9.

If the capacitor Ia leaky then the dlaplay wtlllndlcate

thla

leakage

In

micro -

ampa.

WARNING

UNDER

NO CIRCUMSTANCES SHOULD THE

CAPACITOR

BE

ALLOWED

TO

DISCHARGE OR

ACCIDENTALLY SHORT

UNDER

THESE CONOmONS.

THE

OUTPUT VOLT

AGE FROM THE ZENER TEST SOCKET IS NOT FUSED PROTECTED AND ANY

DISCHARGE

FROM A CAPACITOR WILL CAUSE SERIOUS DAMAGE TO THE UNIT. FOR

FURTHER

SAFElY

NOTES

SEE-4.6

1

0. Remove the capacitor.

11. Prett

LEAKAGE

to dlaplay test

12.

The

unit

Ia

now

ready to accept another capacitor

If

the

rated voltage Ia within range

of

the

aelected voltage.

13.

To termi

nate preu FUNCTION

twice.

PAGE9


14/47

2.8

SORTING CAPACITORS

A Emenng In tow and high tetpolntt.

Alwlflt enter the aetpolnta whlle

In the

normal reading mode or tal eadlnga

m.v

occur.

There are 2 melhOdt Of entenng ' aetpolnta.

Ant me1hod:

1. enter the tetpo6nt value by preulng the n u m e r ~ l red

keyt

on the keypad.

2.

Pratt 1he

grey

SEETPOINT

key

once

for

the

low telpoklt or

twice

for

the high tetpolnt.

3. Pritt edher

the grey pF, nF or uF

key.

Second

method:

1.

eneer

the polnt vaaue by placing a Capacitor Into the capacitor

tockel

2.

Prell

1he White FUNCTION key.

3.

Preat1he

white SORT DISP. ENTRY

key

.

4.

PrNt

the

red number

1

for

1he

flrat telpolnt OR the red number

2

for the

tecond

tetpolnt.

B. Sort mode.

1. Pritt

the red

SORT key

once for the

HIGHIGOOO/LOW

aorang mode.

2.

The ditplay

will thow HJGH

If I l l value It above

the high tetpolnt. the

ditplay

wUI ahow

GOOD If the

valUe

I t betwMn the

high and low

tetpolntl

. the

ditplay wtJI thow LOW W

he

Value It

beloW

1he lOW pOinl

PAGE 10


15/47

3.

Pr

the

red

SORT

key

again

to

activate the % deviation mode. If

the

value

le

above th

high

aetpolnt the dlaplay wtH Indicate the % devtdon

above

the high aetpoinl If the value Ia be

tween

the

high and low aetpolnta the display will Indicate GOOD.

If

the value

11 below

the low se

point

the

dltplay

Will Indicate the

%

deviation

below

that aetpolnt

4. Pre

the SORT key again

to

terminate the aort mode.

During the %deviation mode ome values may be so far off tolerance that the dl1play will reve

to 1howtng

OUER or

LOW

or HIGH.

8oth

ae1polnta muat

be

entered In

for

this feature

to

work

properly.

If tortklg

I t

to commence after cable or

Ume conttant

meaaurementa

have

been

done and/o

the

2

tetpolnta

have

not been entered In, then the torUng

mode

will ute Whatever values are presen

for

the cable or

Ume conttant

modet aa the

tame memory 11

uted

for

both and

no error

lndlca

Uon wtll be

dltplayed.

2.7

CABLE

MEASUREMENTS

There are

2

methods

of

entering the value

per

unit length.

Ant method:

1. Ptace a 1 foot or 1 metre sample at the capacnor socket

2. Preu

the white FUNCTION key.

3. Prell the

wMe

CAPIUNIT DISP. ENTRY key. the .ample hal

now b n

entered ln.

Second method:

PAGE

11


16/47

1. Enter In a value by Immediately

prettlng

the red numerical keyt.

2. Pre the

grey

Feel/METRES.

3. Prell

the

grey

key Indicating

pF.

Meuurlng Cable

For menl/k1tometret.

1. Prell

the White function

key.

For feet/miles:

2.

Prett

the red CABLE key.

3. The dltplay Will Indicate feet (or metre If

wu

preued).

the unit

wtll

automatically convert to mllet or kilometres when those thretholdt are reached.

4.

All

LEO lamps Will light

up

to

Indicate mllea

or

kilometre.

2.8 DIELECTRIC ABSORP'TlON

1.

Place

capacitor

In

capacitor socket

2.

Preat the White FUnCtiOn key.

3. Preu

the

White

OA

key.

4.

The

dltplay Will

now show the symbol OA and

ia

ready to actiVate.

s.

Preu1he White OAkey

and the unitWill

now

cycle through oaK,

dlt

Charge, and float perlod

and dlaplay a ratio

of

aoakage to recovery

voltage

u a percentage.

6. Dur1ng these

perlodt

the

word u.AII for

wan

Will

be dlaplayed.

PAGE12


17/47

7. Prett the function key twice to terminate the DA

mode.

2.9 COMPONENT TESTS

1. To tett unknown bipolar trantlttora, FETt, tr1acs,

SCRt,

UJTa, PUTa

(no darllngtona).

1.1

lnatall the

AC

adaptor.

1.2 Prett the Whlto' FUNCTION key.

1.3 Prett

the White'

COMP key.

The dltplay wtll now ahow the word COM.

1.-4 Place the unknown component In the top 3 receptaclet of the

trantlttor

ockel

1.5 Preta the

Whlto'

teSt key.

The untt will

now

try to analyZe

the

component

1.61f the dlaplay ahowt the word 'bAd'

remow

the component and

rotate

tt

Into another configuration.

NOTE:

Any 3 pinned component

has

a total of tlx

WBf Jt

to place

n

In the top 3 receptacles

Keep changing the components configuration until a

dltplay

other than bad thowa up.

1.8 Preu the "White' test

key aga.ln

until the c:Uaplay ahowt one of l ie following symbola In

dlcdng the type of device under toft

PAGE 13


18/47

PnP bipolar

PnP

trantlttor

nPn

bipolar

nPn

trantltor

m eP

MOSFet

P

channel enhancement t r n ~ l s t o r

m dP

MOSFet

P channel depletion trantlator

m

en

MOSFet

n channel enhancement trantlttor

m dn

MOSFet

n channel depletion trantlttor

FeP

Fet

P

channel enhancement trantlttor

FdP

-Fet

P channel depletion trantlttor

Fen

Fet n channel enhancement trantlttor

Fdn

Fet

n channel depletion trantlttor

scr lllcon controlled rectifier

trAC -triac

W unljuncUon trantlttor

PUt

-programmable unljunctlon tranalttor

1.7 Preulng test again

wtU

Indicate

the

pin configuration by following

the

white arrovn from

the

top 3 receptacles

of the

trantl8tor tockel

For bipolar trantiator

typea the

following

letters are

used to Identify

the

plna.

e -emitter

PAGE

14


19/47


20/47

For SCR the following leUert are

ued

to Identify

the

re.peettve pint:

G =gat8

A =anode

c =cathode

example,

CAG

Indicate the left hand pin It the cathode, the

middle pin Ia the anode and the

r1ght

hand pin I the gate.

othr

components uae various combination of

the above

tymbola to indicate thlr pin

nouta.

ex.

ebb Indicates emitter, base, baae on a

w t

1. 8 A component

mutt

be conaldered ldenUflable and

good

tf any 2

of

6 configurations ahow

matching reJultl'. For example a component may ahow

4

"bad conflgurauona and the

2

remain

Ing configurations IdentifYing It as a PnP transistor or all configuration thowtng

It as

a

PnP. Leu

than

2 of 6

Indicates

a

marginal or suapect component

A

non-matching result howt

a

differen

resutt

for

anymore than

1

configuration. For example, one configuration may ahow nPn and anothe

may ahow PnP

for

the same

component

PAGE

16


21/47

2.10

TE6nNG

POSITIVE

AND

NEGATIVE 3 PINNED VOLTAGE REGULATORS

2.1 Prett

the "White" FUNCTION key.

2.2 Preu

the "White" Reg key.

Tho dltplay

wm

thow the word "Preg

for

poaltlve voltage regulator..

2.3 Place the poalttve voltage regulator wtth the Input pin In the left hand

receptacle, the

ground

pin

ln

the bottom receptacle, and the output pin

In

the

right hand receptacle.

2.-4 Preu the test key and the dlaplay will ahow the voltage that the

regulator

Ia

outputting.

2.5 Preu

the teSt key again and the display will revert to the "Preg

diaplay.

2.7 Preu

the

"White'

FUNCTION

key

to

go

back to reading capacitance.

2.6

For negative regulatora

follow

the above procedure but pre the Reg

key

twice.

The

ditplay

will ahow the

word

nreg to Indicate negatiVe regulatora.

2. 3

Ptace the negatiVe voltage regulator

With

the Input pin In the

bolom

receptacle, the

ground

pin

In

the

top

receptacle, and the output pin In the right hand receptacle.

2.


22/47


23/47

SECTJON 3 OPERATING CONSIDERATIONS AND APPUCATION NOTES

3.1

FREEZING THE DISPLAY WITH THE 'HOLD/FUNCTION' KEY

The ditplay can

be

frozen

When

reading

capacttort on

most

of

the features that are acUvated

to

do thla preaa the 'White' FUNCTIONIHOLD key and the dlaplay

wtU

freeze. thla meana that th

capacitor can

be

removed

and the dlaplay Will aUII

thow

the reading

at

the time

of

holding

.

The

hold

can be uaed

When

reading normal

vaJuea,

any of the aetpotnt modea,and cable read

Ings.

3.2

ZEROING THE MC400

The MC400 can

be

zeroed

by

1

of

3 methoda. The

flrtt

method

I t

to

tlmply

tum

the unit

on

an

molt ttray

capacitance

or

other capacitance

up

to about 150

pF will be

zeroed. If

tome reldua

capacitance I t left then manually zero the unit at described below.

caution

mutt

be

obterved

small value capacitors are

to

be

meuured.

AttNit

zero the unit manually

If

the dtaplay doea

no

a

how

zero When there

It

no capacitance In the capacitor aocket,

a t

detcr1bed

next

The aecond

method I t to preu the

'red'

ZERO button. 1hlt

Ia uteful for

zeroing the capacitance

of long

leada

when

utlng

the banana

)ackl.

The ZERO key Will zero valuea up to 100

uF,

thereby being able

to

meuure

even

very

tmall

valuea

with

very

long

leads.

PAGE 19


24/47

A third method Ia to enter In

a

zero value through the

keypad.

Thl

I

done

prenlng

th

'red'numbera and then

preuing

the ZERO

key

and then

preulng 1

of 3 'grey' k y ~ 8h0Wing th

electrical

unlt:a

(pF, nF, uF). Thla method

Ia

uaeful If It

18

difficult to meuure

a

'zero' value at th

capacitor

aocket.

Do not tn

.

In

a

value

greater than 1oo

uF.

3.3 MANUAL RANGE

The

MctOO

aJao

haa a

10

range manual capability. to acUvate thla feature

preu

the

'whit

FUNCTION/HOLD key and then

preu

the 'green' MANUAL key. the unit wUI now be In 'manua

mode and wtll generally be

In

the loweat range

(1000.0

pF). To change the range almpty pre

any of the green range keY' all the Wa: J up to 1, 000.0 mF ( 1 FARAD ). While

In

the manual rang

any

kay

that haa a 'green' range Indicator on It Will not allow any other function on that

kay

to b

entered, for example entering number. or aelecting any of the 'white' keyt. To terminate 'manua

mode, preu the "White' FUNCTION/HOLD key and

depren

the 'green' MANUAL

key.

For maximum accuracy

always

uae autoranging u It aelecta the moat accurate range.

In no

way doet

the manual range feature Improve the performance

or

accuracy

or Um

reapone

of

the unit.

Ita

belt

purpo.ela

learning

to

compare and

dlnngulah, from

dtfferent rela

uve

electrical units and their relationships.

PAGE

20


25/47


26/47

neoted to the MC400. So It

le

quite imperative to avoid dieohatgtng any oapaoltanoe If It

le

con

nected to the M0400 through the Zener diode socket

In many cuea 25 vottt ft higher then the rated voltage of the capacitor under teal In that caa

the MC400 can provide 3 dtfferant levels of voltages for tasting purposes. the levels are determine

by the condition

of

the

bdery

If no AC adaptor

Ia

ueed. this

Ia

activated

by

presalng

key

numb

1,

2 or 3

for

approx.

25,

12,

or

8 volta reapectlvely, When the dlaplay Ia ahowtng the

word

ADJt.

After prenlng the FUNCTION key the

dltplay

ahowa the word test lnaert the leada Into th

zener diode aocket and place the capacitor In the alligator cllpa

with

the '

+

aide

of

the capacit

In the right hand

tide of

the

tocket

and the ' ' aide In the bottom receptacle

of

the aocket Pre.

the LEAKAGE

key

and walt

for

the capacitor to charge. Large capacltora can take an extreme

long time to charge. When the capacitance aettlea out the word none will Indicate no detectab

leakage. otherwise the dlaplay will ahow the leakage In mlcroampa.

The capacitor may

be

removed after the uaer

I t

aatlafied that It

hat

fully charged u long

aa

I t done carefully and the capacitor lead a are not accidentally discharged. Another way O.f dlacharg

lng a capacitance Ia to

go

back Into normal capacitance mode

by

preaalng the LEAKAGE

key a

that the word teSt

Ia

displayed. And then press the FUNCTION key twice. thia last procedure

practical only

for

amall value capacltora u large onea wtll

take

a long

Ume

to discharge aince

th

procedure only tuma the voltage off and doea not ahort the capacitor.

To

go back Into leakage

mode

the Whole procedure

mutt

be done over again.

PAGE 22

-----------------------------------------------------

- - - - - - - - - - -


27/47

3.6 ACCURACY AND RANGE OF LEAKAGE MEASUREMENT

The accuracy of

the

leakage tett la limited by

the

ID convertor resolution.

the

wortt accuracy

Ia when

the capacitor Ia

leaking

juat a little

bit

or Ia approaching ex1rem.-ty low realttance or a ahor

clrcuft.

Alao

the accuracy decreuea u

the

teat

vottage

become lower.

Thla Include

lower vol

tagea u a

reaun

of battery aging.

The

following Ia a graph approximating the typical accuracy for any given capacitor

.........

PAGE 23


28/47

3.8 SORTJNG CAPACITORS

The MC400 Ia capable

of

aortlng capacitora In 2 different modea. the different aortlng mode

are

aa

followa.

1 SORTING IN HIGH/GOOD/UNDER METHOD BY DEANING A DEADBAND

2 SORTING IN %DEVIATION AROUND A USER DEFINED SETPOINT

Before aorting can

commence

2 aetpolnt1 muat be choaen. Akwaya enter the

aetpolnb

While

the nonnal reading modes

or

false readlnga

may

occur. there are

two methods

of entering In ae

points.

If

aorting Ia to commence after cable or ime

co

natant measurements have been

done and/o

the 2 aetpolnta have not been entered In, then the aortlng

mode

wtll uae Whatever Values are

pre.en

for the cable or time conttant modoa aa tho aame

memory

Ia uaed for both and no error

Indica

tlon will be dlaplayed. So make aure to enter In the aotpolnta. The range of thla feature Ia l lmled t

1 00 uF. If an 80 uF capacitor Ia off tolerance and Ia actually 11 0 uF then the

MC400

wtll not

dete

that particular Value under thla feature.

To

enter

in

the loW aetpolnt enter the value

on

the

'red'

numbert

on

the keypad.

Preu

the

'gre

SetPOint key once.

Preulng

the key a aecond time will allow the high aetpolnt to be entered. Afte

presalng the 'grey' Setp()lnt key once

or twice

then the electrical uni t Ia choaen by preaaing 1 of

grey keya marked pF, nF

or

uF.

The aecond method

of

entertng In aetpolnta

Ia to

uae the SORT OISP. ENTRY key. Oepreu th

White FUNCTION and depreas the SORT DISP. ENTRY key and the value current ly

being

dlaplaye

PAGE

2-4


29/47

wtll

be

entered In u a aetpolnl To choae the aetpoint

now depreta

the

'red'

number 1

for

the firs

point and number

2

for the 1econd 1etpoinl

The

dlapiay

will

now

continue to

read

normal value. To actiVate the

HIGHIGOODILOW

aet

point preaa the 'red'

SORT

key.

If

the value Is above the high aetpolnt then the dlaplay Will Indicate

'HIGH'.

If

the value

Ia

between the

high and

low setpolnts then the

dlaplay

Will

lndicaie 'GOOD'

If the value Is below the

low

setpolnt then the

display

Will Indicate 'LOW.

To

actiVate the deviation

mode preu

the

'rea' SORT key

again. If the value

11 above

the

high

aetpolnt the

dlaplay

will

indicate the % deviation above the high

tetpolnt.

If

the value

Ia

be

tween the

high and low

aetpointa then the dlaplay Will Indicate

'GOOD'. If

the value

Ia

below the

low

aetpoint then the

dlaplay

Will Indicate the

%

devtauon below that aetpolnt.

If

the

%

devtauon

1

to be aorted about a single aetpoint then almply make the low aetpolnt equal In value to the high

aetpolnt.

During

the deviation mOde aome values may be ao

far

off tolerance that the dlaplay Wi

revert to ahowing OVER or LOW or HIGH.

3.7 CABLE MEASUREMENTS

The MC400

can

meuure

the lengths

of

cablea

up

to

a

theoreacal9,999

miles

or

kllometrea

The

cable

muat have at leaat two or

more

Wlrea, and

be completely uniform

In composmon. Tha

I$ to

aaythe cable

can't

atart off With

two wire and then somewhere along the way

aeveral othe

s1randa

are

added. The cable

must also be open circuited

at

the

end of

the cable. If

a

mumcon

ductor cable Ia meuured, only two of

the

atrandt need be

utilized to meaaure

Ita

length. Make aure

PAGE 25


30/47

the

two trand In thi multiconducted cable are u 1hort

at potllble

and protrude from one of th

end

and

not

a

few

lnchea

from It

The c c u r ~

of

the meuurement dependa on the quality

of

the data up

piled

to O'le MC400

The unit calculates the length of the cable under test

by

dMdlng the value of the capacitance a

the

tennlnalt

by the value per untt length tupplled

by

the operator. The more accurate the valu

per untt length

I t

the

more

accurate the reading Ia. Alao the cable tbetf mutt have a relativel

uniform capacitance

over

the whole length of the cable. In other worda the quality of the cable

I

u l f

u

far

u the capacitance

per

untt length

11

concerned,

hat

an Important contribution t the

ac

curacy of

the final meuurement

For

example, In meuurlng a cable that I t f,000 feet long, the

f ln

1,000 feet I t 15

pF

per foot and the last 3, 000 feet Ia 16

pF

per foot. the accuracy wtll obvtoua

be

affected no matter what value h u been entered aa the capacitance per unit length. Another facto

affecting accuracy Ia the value of the additional capacitance if the cable Ia

meuured

rolled up o

a pool, u oppoted to It being atrung out. tf thla capaci tance a known then It can

be

nulled ou

by entenng

thlt

value and deprenlng the 'red' ZERO

key.

The user must also be aware that

th

value changes If the apool

Ia

only half filled With the cable that

Ia to be meuured.

There are two ways

of

entering the value per unit leng1h. The flrat I t

to place

a 1

foot

or 1 metr

ample

at the

capacitor

aockel

If

ualng teat

lead

wtth

the banana

jackt,

make aure

to

null out th

value of theae tu t leads. Preu the

FUNCllONIHOLD

key and then

Preu

the 'White' CAPAJNr

OISP. ENTRY

key.

the sample

h u

now been entered ln.

The

aecond way

to

enter In a

tample

Is

to

tlmply enter in the capacitance value on the

keypad

pren the

'grey'

Feet/METRES key and then the 'grey ' key Indicating pF. enter In

no

more than on

decimal point figures.

At

thla point

It

11 not necenaJY to Indicate Whether you are entering feet o

PAGE 26


31/47

metre

a t thlt I t

decided

later on. now cable meaturementa can

be

read.

Pre

the

'red'

CABL

key to read In feet

The

MCfOO

Will automatically read In feet or miles

i

the cable

Ia over 5,280 feet If

the rea

Ing

is In feet the red LED lamps Will

not

light

up

.

If

In miles the LED lamps Will all l ight

up

.

To read In meb1c

pre

the

'White'

FUNCTIONIHOLO key

from

normal reading

mode

and the

pre'*

the

'red'

CABLE

key.

the d laplay Will now ahow readlnga In metres or kilometres and Will b

Indicated

by

the

LED

lamps being

on or off

respectively.

To

get out

of

thla

mode

pre

the

CASU:

key.

NOTE: the unit cannot

toggle

back and forth between mile and kilometre. or feet and metre

3.8 LOCATING BREAKS IN CABLES

one of

the

more

uaeful appllcalions

of

the MetOO

11

the ability to locale

b rew

In cablet.

cable

wtth

a

break

In

It

Will meuure the length

up to

that break.

Meuurtng

the length

of

a broke

buried cable require. a allghtly different technique. There Ia an additional capacitance In a burle

cable, that

11 the

capacitance

to

ground. Because

of

this the capacitance per unit length

Wilt be d

ferent

If

the uaer

I

fortunate

to

aJready

now

thla value then the

procedure

Ia

to

connect the u

broken

conductor to

earth

ground

and then to the minus terminal

of

the unit and the other

conduct

to the positiVe terminal. Another

problem ar

i

aea

when the burled cable

Ia

strung out

over

man

mllea wtth many junction

box

wtth the break occurtng between jutt 2

of

them. one

way Is

to ca

cutate the percentage capacitance between thetwo enda becauae 1he capacitance Ia proportiona

PAGE

27


32/47

to

length. The percemage

of

capacitance on one end

of

the eable

I t

the tame ae the percenta

of the length from that end to the break. The length

It

c;aJulated In the following

WBrf

LENGTH

OF

BROKEN

CABLE =

FROM

1ST

END

CAPACITANCE

OF

1ST

END

COAXJAL CABLE

X

TOTAL LENGTH

CAP

. OF 1ST END + CAP.

OF 2ND

END

Make aure to connect the ahleld of the cable (braid or outer conductor) to the mlnua aide

the MC400.

3.9

DIELECTRIC

ABSORPTION

(DA)

EqUivalent

DA

Clrcun

PAGE 28

.... --M.. T h ' . . . . .. ..... ,. . ,, ... . ..... . . . . . .

....

. ... , .... .,

... J f -- h- -

...

. -- ....... "" "--....+.

uue

10

e

t m e m ~

euage

o

n

e

Mc.;.tuu

c rcunry e

enecuv

range o ea re uauau


33/47

from

1 uF and up. Smaller valuea can be measured but a correapondlngly high value

of

DA w

be dlaplayed which Ia uaeful for comparative purpoaes.

Some capac.-ort don"t completely dlacharg unleu they are tt'loned

for

a wry long Ume. Th

ability to remember a vottage I t known u dielectric abaorptlon. The effect I t the aarne.h u t'lavtn

a aecondary capacitor In tenet with a large realator, parallel to the main capacitor. The Value

expre. . d a a ratio of the voltage

acrou

a fully charged capacitor to the voltage aero

hat

sam

capacitor when It hu

b n

dlacharged and left to recover

or a

certain

period

of

Ume.

This

Ia

th

technique uaed In the MC.OO to meuure DA. The cycle Ia broken

down

Into three time pertoda

The

first

It

a pertod

of

soakage, followed

by

a

discharge pertod and then

a

recover pertod.

T

enter Into the DA mode press the FUNCllONIHOLO key and the 'White' DA key. The dlaplay W

rtad DA. To

continue

With

tht teat pr th am key again.

Th MC400 will

eye'-

th

capacito

through three predetermined ame pertoda ofapproXImately 5 mlnutaa charge ( aoakage),5 aecond

discharge,

so

seconds recover ames. These ames conform to MIL spec MILC199780 the displa

wtll then ahow the ratio

of

the charge voltage to that of the recovered voltage u a percentag

During th t t t cycltt 1ht

keyboard

I t

lnaoc

blt

and the dtplay will Indicate to

walt

by

dltpla

lng UAit for wan.

A capacitor With a reading cloae to o% hat a low DA and one clote to 1 00% h u a high read

lng. It

It

obvtout

to aay the lower the reading the better. Reading uaing

thlt

MC400 method ar

typically lower than 6% for large

capacttort

wtth a

low

DA and 30% for amaller value capacttor

wtth a

low

DA. The amaller the value the higher the reading becaue of the Internal leakage of th

Me-tOO circuitry.

PAGE 29

ft

M . h e ..- ' &

M....

C

O O

i i + e Me. - M o l e u


34/47

One

of

the characterldct of a capacitor having

OA It

that lhe value under normal reading

will be higher and Will gradually decreaae u the aecondary capacitance

It

charged. After thla

aecondary capacitance

It

charged then the true value Of the capacitor

It

dltplayed. The

Ume

takea for

thl

aecondary capacitance

to

charge depend on the dlelectrtc and

ma;v take aa lHUe

u

a few tecondt or u much u a few hourt.

For

meuurlng

the

OA Of

tmall value capacttort

It

Ia beat to dlaregard the

DA

feature of the

MetOO and

take

normal reading.

For example, taU a reading of a good capacitor and then

take

a reading of a euepect capacitor

When thle

It

dono take a reading

of

both

capacitor. together.

If

there

It

no

DA then the dltplayed

reading will Indicate an almolt exact tum of the two otherwlae the 2 value wltl not add accurale

3.10

ZENER otODES AND

RECTIRERS

The MetOO hu the

ability

to meaaure the zener breakdown voltage of a zener diode from 0.0

vona up to 25.5 vottt. Thla of courte depend on the condtuon of the battery u the telt voltage

for thl feature

It

not regulated.

Wtlh

a freah battery thla can be about 20

to 22

volta.

If

an AC bat

tery adaptor

I t

uted

then the complete operating voltage

It

aJWayt maintained

(tee

AC ADAPtOR)

The bottom receptable In the tranalltor aocket (zener anode)

I t

ground and the open clrcutt out

put voltage of the eXIreme right hand aocket Ia approx. 2


35/47

3.11 ZENER DIODES

To property operale thi feawre It

Ia

recommended that the manufacturer. tet current for a

par1icular zener diode ahould be known. Thla will

gredy

lncreue the chancea of

gdng

an

ac

curate reading. For example a

1N4678

diode

Ia

rated al1.8 V breakdown voltage

a1

a teat current

of

50

uA.

On

the

other hand a 1N756

uaea

a

teat

current

of

20

rnA

for a

8.2

V breakdown voltage.

The maunum

output current

of

the zener diode fe.Wre

of the

MC400 I

approJdma&ety 1.6

rnA. The accuracy

of

reading uner dlodet rated wt1h a

teat

current higher 1han 1hta depend on

the characteri8Uc curve

of thai

parucular diode. Some high current diode

Will

barely tart to break

down

al1.6 mA giVing a reading lower

than

normal.

To operalethl fe.wre pre

.

he FUNCTION/HOLD key and then pre

. .

he

'whHI' ZeneR

key.

The unit

Ia

autom.acally placed In the

1.

5 mA output current range. Mau aure there I no capacitor

connected

to

the terminAl lnputa u they have a common connection to the tranalator aocket Where

the

zener diode I

teated.

The dlplay

Will

now

the

word ZenR Indicating

the

diode It ready to be

~ M t a ~ e d .

Place

the

zener according

to

the

uner

diode ymbol

a

the

tranlator

ocket

Pre

. .

the

'Wtlde' .Z.neR

key

and

the

dlaplay wtll how

1he

zenenng voltage. Preu the ZeneR key again and

the

csa.play

goea back to the word

ZenR

and ready

to

accept another diode. If 1hl diode 18 defec

PAGE

31


36/47

tiw or open circuited then the full26.6

voltl of

the zener upply voltage will be ahown (Aaaumlng

AC adaptor power).

The

following

2 grapha ahow 2

dtfferent characterttUc

curvet.

One

It for 1he

1

N768

and

1he o1her

1

Not678

.

3.14 RECTIAERS

uoo

...

JO

....

Follow

1he

aame

procedure

u

the

above zener

diode

procedure

but

take

two

readlnga, one

for

forward

voltage and another

for

reverse voltage.

If

there

It

no diode

In the tranalstor aocket

then the full open circuit 25.5 voltage will

be

dlaplayed.

If

a

diode

Ia reverae biased then

it

will read

the tame.

If the

diode

It

forward

blaaed then

It

will read

from

about 000.3

to 001

.0 volta.

NOTE: It Ia

auumed

that the unit It

being

operated

W1th

the

AC

adaptor. Operation

W1th a 9

von battery may ahow a much

lower reverted blat

vonage.

To deactivate thlt feaiure prett the

'White'

FUNCTION key twice when the diaplay Ia showing

ZENER.

3.

15 ANAL

VZING AND TESTING SEMICONDUCTOR COMPONENTS

PAGE

32


37/47

Be ru y to ' ' nt

panned component

In ll i contagurauona for

a

complea e l

for 01po1ar trans1stor types the following letters are used to

identity

th

pins.

E

c

b

-emitter

-collector

-base

example, EbC indicates the left hand pin is the emitter, the

middle pin is the base, and the right hand pin is the co11ector.

For

FET

transistor types the following letters are used to identify the pins:

G

-gate

asource

or

drain

example, G-- indicates the left hand pin is the gate, the middle pin is either source

or

drain

MT1

or

MT2

and the right hand pin is also either the source

or th

drain.

In some cases (usually MOSFETS) the drain and source can

be

identified .

..

PAGE

34

-------------------------------------------------------------------


38/47

ci

s

cJ.. al l

source

In general the component analyzer works

by

scanning

the

component through the transi

socket and looking for specific patterns that are characteristic of the device under test. If no patte

match then the display will indicate bad. If 2

or more

patterns are found

then

the display shows

word

rotA for rotate. If a single pattern

is

found

then

the

device

is

identified

and

displayed.

Try to remember when a pattern

is

correctly identified .

Then

next time use that same pin c

figuration so that no time is wasted in rotating the component.

--Most

components can

be

identified

with the

MC400, but

with

the millions of types

in

exista

there may be some

good

units that still can't be identified. .

3.14 VOLTAGE REGULATORS

The MC400 can test voltage regulators with a quiescent current of approx. 2

mA.

The quiesc

current

is

the current under

no

load or standby conditions. Since

the

MC400

presents a slight

l

to the voltage regulator it is virtually

in

its quiescent state.

If

a regulator appears to have a volt

much higher (or much lower in the

case

of negative regulators) it

may

be a bad regulator or its qu

cent current may be too high which will give a much higher indication than normal. The only wa

over come this is to know before hand what to expect from any certain regulator whose quiesc

current is known

to

be higher. In general most regulators of the 78LXX or 79LXX have lower qu

PAGE 35

J -

dtuu1

S source


39/47

lowor qulocont current..

'T'yplcal

ptnnow

Of 78LXX or 79LXX type regulator:

3.15POWER

The MC400 I t powered by a 9 volt battery (tee INSTALUNG THE BATTERY). When the

ba

tery

I t

low

the dlaplay

will

Indicate the

word

BAtl and the unit

Will

become

Inoperable. The

MC40

can alao be uaed with an optional AC

balery

adaptor (DAETRON MODEL PS1 00) Which can b

uod u an ordinary

bdery

eliminator. THE

MC400 WARRANN

IS VOID IF THE UNIT I

DAMAGED BY A LEAKY BATTERY.

NOTE: Aa aome adaptort may deatroy the

power

circuitry the AC adaptor uaed mutt b

DAETRON'S PS1 00 or one approwd by DAETRON or the warranty le void.

3.1611PS ON SAVING POWER

Otwtoualy

the

Up

apply only

when

ulng

a battery.

the

larget power

conumpuon

I

uae

when

reading very large capacitors. So It

Ia

Wlte not to leave theae unlb running

for

very long

a

they may quickly drain

the

ballery. Another ume When there I t large

power

consumption

Ia

Whe

chectong forward

blued dlodet.

Alao aee the

tection

on predicting battery failure.

PAGE 36


40/47

8iCT10N4

. MAINTENANCE AND CALIBRATION

4.1

CAUBRATlON

Be

careful when calibrating

aa

any damage done to

the

Instrument will void the warrant

MC400 Olglt&l Capacitance Meter Is accuraiely callbraied

at

the

factory

With the temperatu

deviating more than 70 degre

o

degree F. Recallbrdon

It

not conldered necettary

repair

haa

been made to thote partt which affect caJibraaon or If there

It any

reaaon to

t

that the meter accuracy

I t of f

. All that It required

It

a tmall tcrewdrtwr to adjut t The tingle

uometer and a alngle capacitor of

approximately 900 .0 nF

To Within atteaat 0.5% accuracy. Alto

the

ballery

mutt

be In good condition otherwllt

t

won1 work. The leadt Of the calibration capacitors mutt be very clean to prevent falte rea

If There Ia accett to

an

accurate capacitance bridge or meter then there Ia no need to

premium tolerance capacltort.

Alto

the

electrolyUc capacitor

~ e

1hould have u

Utile

leak

pouible to calibrate that range.

To get at the calibration potenuometer lntlde the case uae the folloWing procedure to r

the back cover. Unacrew the jack nut from the battery adaptor jack. Peel off the four rubb

covering

the

caae tcr.wa. Remove

the

four tcrewt

Utlng

a phllllp t tcrewdrtver. Separat. th

and back cover very tllght ly While pulling down on the front cover. When the cover

It

off t

It

now ready to calibrate.

PAGE 37

~ l t : t

1.


41/47

The acrewdrlver uaed ahould be plaauc

or

non conductiVe,

If

not. be abaolutely aure to avoid

accldentaly ahortlng out other componenta when adjutting the potentiometers. The following

diagram thowt the locauont of the varloua potenUometera.

STEP2.

Tum the unn on and preaa the 'red' ZERO key to eliminate any atray capacitance. lnaert the 900

nF capacitor

In

the capacitor aocketa.

take

a reading

of thit

capacitor.

If

the value vartea from the

known valUe of the tett capacitor then adjutt P1 until It It the tame. Zero the unit again and adjutt

P1 again. Keep doing thla until there Ia very lltlle adjuttment left to do.

PAGE 38


42/47

4. 2

ZENER

DIODE CAUBRAT10N

Go Into Zener diode mode.

P1ace

a zener diode

(approx

. SV Will do fine) in the zener di

aocKet take a reading of 1he voltage acrou

1he

zener

diode

with

a muiUmeter and adjuat P6 u

the MC-400 dlaplay

agree

wtth 1he readlnng

on

1he muiUmeter (to read

1he

dlaplay remembe

preu 1he ZENER key).

4.3 MAINTENANCE INPUT PROTECTION

The MV.OO Incorporate

diode

clamping and a 1/4 ampere fuae to protect agaJnat char

capacltora. Thla protecuon however Is no guarantee that the lnatrument Will not be damaged If

uaer forget. to dlacharge the

capacitor

before lnterting Into the binding

pott t

.

So

remembe

ALWAYS DISCHARGE YOUR CAPACITORS.

4.4 IF YOUR INSTRUMENT STOPS WORKING FUSE REPlACEMENT

The

1/


43/47

RANGE

FUU.

Y AUTORANGING

FROM 000.1 PF

TO

999.9 MF

(

1 FARAD)

MANUAL RANGE CAPASIUlY IN 10

RANGES

0.0 pF tO 1,000.0 pF I 10.000

uF

TO 100.00

uF

1,000.0

pF

TO 10,000

pF

: 100.00 uF TO 1,000.0 uF

10.000

nF

TO 100.00 nF I 1,000.0 uF TO 10,000 uF

100.00 nF

TO

1.0000

uF :

1.0000

mF

TO

100.00

mF

1.0000 uF TO 10.000

uF

I 100.00 mF TO 1,000.0 mF

ACCURACY:

0.5

OF FULL SCALE FROM

0.1 PF

TO

3.000

UF

: 1.0 OF FULL SCALE FROM 3.000 UF TO 140

UF

: 5.0 OF FULL

SCAlf

FROM 140 UF TO 1 FARAD

ACCURACY

IS

VAUD

FOR

BOTH AUTO

AND

MANUAL

RANGING

LEAKAGE

CALCULATES LEAKAGE CURRENT OF CAPACITOR

IF

CAPACITOR

IS LEAKY. ACCURACY OF LEAKAGE READING

IS

+ 20 TO + 30 %DEPENDING ON THE CIRCUMSTANCES, WHEN THIS FEATURE IS

TlVATED

PAGE40

__


44/47

OltU:

CTRIC ABSORPTION

CYCLES

CAPACITOR THROUGH 3 PREDETERMINED TIMEO

PERIOOS

OF SOAKAGe, OISCHAAGE

ANO

RECOVER AFTER WHICH THE

DISPLAY READS A RATIO OF FUU.Y CHARGED VOLTAGE TO

RECOVER

VOLTAGE

THIS PROCEDURE CONFORMS TO Mil.

SPEC

Mll.C-199780

ZEROING

ALLOWS ZEROING OF

Nf

CAPACITANCE VALUE UPTO 100.0 UF

BY 3

DIFFERENT

METHODS

1. POWER ON METHOD AUTO ZEROS ANY VALUE AT TERMINALS

UPTO

100.0 Pf

2. DEPRESSING ZERO KEY ANY VALUE AT TERMINAL& UP TO

100.0 UF

IS

ZEROED

3. ENTER THE ZERO VALUE THROUGH

THE

KEYBOARD

SORTING CAPACITORS

2

BASIC CONFIGURATIONS

1. SORTING IN HIGHIGOODIUNDER METHOD BY DEFINING A

DEAD BAND

2. SORTING IN %DEVIATION AROUND A USER DEFINED SETPONT

PAGE41


45/47

~ U M I M U K ~ M f N T S

AUTOMATICAU.Y CALCULATES

LENGTHS

OF

CABLES

IN FEET.

METRES, MILES, KJL.OMeTRES (THEORETICAL RANGE OF 10,000 M U S ).

SAMPLE CAPACITANCE IS ENTERED IN IN 2 DIFFERENT WAYS

1. VALUE IS ENTERED IN THROUGH THE KEYPAD

2.

P\.ACING

A 1

FOOT OA

1

ME'T'RE

SAMPLE

AT

THE

INPUT TERMINALS ANO DEPRESSING THE

'CAPIUNI r KEY

HOLD

FUNCTION

FREEZES

THE DISPLAY WHEN MEASURING:

VALUE, TRUE CAPACITANCE, TIME CONSTANT, LEAKAGE,

EXTENDED RESOLUTION,

ANY

SORTING MODE AND CABLE

MEASURMENT

INPUT

DIODE CLAMPING

AND

FUSE PROTECTED UNPUTS

AT

BOTH INPUT

SOCKETS AND BANANA JACKS. DISCHARGE RESISTOR IN OFF

POSffiON OF POWER SWITCH

AT

TERMINAL SOCKETS

ANO

BANANA

JACKS

PAGE42

ZENER DIODE AND RECTIFIER TESTS


46/47

READS NYZENER DIODE VALUE

UP TO 25.5V AND DISPLAYS

VOLTAGE ON THE DISPLAY.

POWER

NEEDS

ONLY A SINGLE 9V BATTERY DISPLAY INDICATES LOW

BATTERY

CONDITIONS BY

DISPLAYING

BATT

CASE

HI-IMPACTABS

PLASTIC

CASE

WITH

METAL TILT STAND

DIMENSIONS 180 MM X 98 MM X 44MM

ACCESSORIES

INCLUDES

INSTRUCTlON

MANUAL WITH CALIBRATION

PROCEDURE AND

SPARE

FUSE. AND 3 ALLIGATOR CLIP LEADS

SUITABLE FOR BOTH

THE

CAPACITOR AND TRANSISTOR SOCKETS

OPTIONS

CC100 CARRYING CASE. PS100 AC BAlTERY ADAPTOR

PAGE

4

SEcnoN

8

WANWlfY

'

i::..


47/47

' ' \ ,

DMnn Wlll'l'anll

to

the original pwchuer

hlllthe

MC400

11 frM from dWectaln w o r ~ r i t a n ~ h l p

and rna11r1a11 for a

periOd

Of 1 ~ piUt delivery am., from the dille of purchate. DAETRON

Will

repair

or replace at

ttl

option.

Without

charge a defective

untt

upon deliVery

by

maM (prepaid

and

IMured) to the following addretl. ,

DAETRON

P.O.

BOX 841, STATION U

835

THE

QUEENSWAY

TORONTO

ONTARIO

CANADA

M8Z

5YI

NOTE:

do not ahlp to the abOVe

addre11

by courier u the poll office wtll refute

It

NOTE: 1

retwnlng

lhla

unit

frOm

a

cout*y t h n CANADA,

pleue

alaCh proper documenla

ton

to

lndiCal8

tae unn 11

being

1'811.11ned

tor

repair u

r ch. , . . lnceund by

DAETRON

beeaute

Of

Improper documentlllon WID

be

charg8d

to

l ie cuttomer.

Do not tend

ez,:ourier,

aend by mall only.

Pleue

pack Cll'efully to avoid

breakage In

tran

d .

1lUa=

1

notapplyllbe

unA hal been

mlluted, .a&ered,llbUted,

dMiagecl

(accklen

tal

or

o11erw1te

,

rntlcdbr.a.d

or

If

the

tertal number It

. . . . , .d,

def.ced

or

r.moved. The above

1110

appllee to f J damage In

tranan.

DAETRON WID not be liable for

l l f l

conl8quenaal, lnclden

tal,

or apeclal damage reaultlng from the u11, mltuee or 1011 of Ute of thll lnatrument.

Daetron MC400 manuel de l'utilisateur

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Transcript of Daetron MC400 manuel de l'utilisateur