daetron mc400 manuel de l'utilisateur
TRANSCRIPT
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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
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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
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SECTION 1 GENERAL INFORMATION
1.1 INTRODUCTION
The Oaetron
model
MC400 Ia a compact hand held
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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.
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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.
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:
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.
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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.
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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. .
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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.
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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
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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.
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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
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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:
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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.
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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
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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
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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
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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.
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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.
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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.
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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
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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
.........
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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
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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
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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
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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
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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
-
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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
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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
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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
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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
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32
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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
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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
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dtuu1
S source
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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.
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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.
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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.
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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
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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
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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
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~ 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
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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
'
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' ' \ ,
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.