Hameg HM8011-3 User manual

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Instruments
Service Manual
HM8011-3
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for currentmeasurements
mA
switch for resistancemeasure--
for\t'oItagemeasurements
Cl)V/kO (shock-proofsocketforconnectors
of 4mm diameter)
Connection (high JX>tential)tor voltage and resistarice
measurements in combination with the COMMON
input @.
CAUTlONI TIte wob~ 8CI'O" thls t8nnlnsl wlth
respect to cae (non-lu8ed Hrthed conductor,
ground) should not 8xceed 1000 V to ensure ..lety
oloper8tion.
@ DC/AC(pushbUtton)
F~ion selectionbetweenDCandAC~rem.eftta.
@cxJ ))(pushbutton)
Swichtor disoonnectingtheacousticsignal.Thebuzzer
beepswith everymange cf the measurementringe.
when overtoedoocurs.arKjif the displayis zeroin the
resist8nCerange.
@ RANGE(6-positionrotaryswitch)
The rangeswitch permits to adjust the measurement
rangeswithin the selected functions. When voltages
and currents of unknown magnitudeare measured,
flr8tiy HIect ~ hlgh- meaul8m8nf ,."..1 Then
setthe switch to the nextrangeinorder,untiloptimum
resolutionisobtained.
@ 2OA(shock-prootsockettorconnectors
of 4mm diameter)
Terminal(highpo~ential)tor ACand DCcurrentmeas-
urements in the 20A range in combinationwith the
commoninput@. Tlte/nput" not tu.. prot8Cted.At
CUnwn18whIch exceed 'DA the maximum ~mlss/.
bI. m...rlng time i. 3DSSC.Measurlngtim..
exceeding30sec.an ~useth.nnaldamage0'the
Intern.'resistors.

selection
selection
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COMMON
dlfference
The mean vafue of the input YOItageend ÄCvoItages 8f8
detennined by the tlUe rms value. When measuring AC
YOltages.a DC component is suppressed. If possibfe.
the COMMON terminal @ should beconnected directly
to ground or to the test circuit point carrying the Iowest
potential to ground.
During rneasurements of circuits containing inductive
components. inadmissibfy high voltages may occur.
when the test circuit isope~ Inthis c8se.appropriate
precautions should be taken to prevent destruction of
the HM8011-3 module by induced voItages.
Current m..su'~.nts
For current measurements, the device to be tested is
connected to the mA socket (!) or the 20A socket @.
The HMBO11...Jmodule .hould be ln88l'ted Info the
line whlch canie8 the 1oW8Sti'Gt6.~'" to ground. To
ensu18 Ntety 0' OperBtlon, the VOItage fo gmund
aCI'oa the C'OMMON terminal 8hou1d not excHd
~Vp'
ACcurrentsaredeterminedbytheirtrue rmsvalue(see
"Crest factor"). When measuringAC currents. a DC
componentissuppressed.
The current measurementrangesare microfuse-pro-
tected from overloadcondition(2000mA range: up to
2A; lower ranges:upto 200mA).The20A inputisnot
fuseprotected.Ifafuse hasbfOwn.firstly eliminatethe
overloadcause.Thenre-establishthe operatingcondi-
tionof the HM8011-3multimeter.
At cu".,.,. whIch exceed 1DAthe mu. adm~~
meaurlngtime,.JO.-.
ReslstancemN.ur.menu
Forresistancemeasurements,the deviceto betested
is insertedbetweenthe COMMONterminal@ endthe
V,Ikg socket (7)..ADCvottage is appied aCfOSSthe con-
nectingterminals(seespecificationsonpage7).There-
foreonlydeviceswhicharenotundervoItageshouldbe
measured.becauseanyvoItagepresentin the test cir-
cuitwifl giveanerroneousresult.
If very.sma41resistalqS are rf\easured;the fineresis-
tanceoftheconnectingleedsmustbetakenintoconsid-
eration.
\tVhenthe resistarx:emeasurement inputs are shor-
tened(approx.0Q)thebuzzerbeepscontinuously.
to
Overloadprotection
All measurement ranges of the HM8011-3 multimeter
are protected against different types of overload condi-
tions. General procedure: WhenmHSuringunknown
m.gnitudes,firstiyselectthehighftt m..urernent
rsnge,Ware switchingoverto theoptimumrud-
out rsnge. If. failure 0' the HM8011-3module I.
detected,firstiy e/imin.te the 'silure ~u.e, befo,.
performlngsnyfurtherm...urement.
Fuse repiacement: 11overloadoccured in a current
measurement range. one of the two micro1uses must
be replaced before re-starting operation of the HM 8011.
3module. Forthis purpose. the set must be opened. the
fuses being only 8CCe$sibJefrom the inside. Inanycase.
only fuses of the specified type shall be used to avoid
damaging of the HM 8011-3 muttimeter and to ensure
continuity 01specifiC$tion in the currentmeasurement
ranges. ~ ~ct.'88~--

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~- CF-'ffii""
. '~R~~~~
0
periodd~ration
pulseduration
pulsevoltage
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t8)1es.the conc~ HM8011-3measurementranges
must be re-el~. However. a re-aljgnmentshould
onlybeperformedrifacalibratorofadequsteaccuracyis
8v8i~.
In811measurememranges.the HM8011-3test modes
must be check~ by comperison with the values
specified in the IfofIowingtables. However. before
changingthe mellUrement r&nge.cereshoulda~
betakenthat the $ignalappliedto the HM8011-3mod-
uledoesnotinadmissibiystressthedeviceundertest.
At the beginningofanewseriesof meesurements.the
calibratorshould8ways be resetto the minimumout-
putvalue.Beforechangingthemeasurementrange.the
calibratoroutput must be switched off and not be re-
activated.unlesst1e next higherHM8011-3measure-
mentrangeinorderisselected.AshieldedcabIeshould
be used to connect the calibfatorand the HM8011-3
multimeter to avoid undesiredextemal influenceson
the measuredsignal.
Forbetter survey.the checksshouldbe performedin
the recommendedsequence.
a) DCyott8g. m.aeurem8ßt range (Tab.1)
('1 = 40Hz to 10kHz
121.20Hz to 20kHz ~I- 4OHzto 100Hz
(AI=20Hzto 100Hz
(Tab.3)
M~ -An11.~

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Tei
on
ß
5-.
100kQ
1kO
PTCBOO
10MD
4.64kO
21.6 kO
4.02 kO
19.6kO
9000
aoo
10 D
100kO
10kO
464kD
100kC
8.25kC
46.4kC
4.64kC
4.64kO
100kO
66.2 kO
56.2 kO
26.1 kO
3.01 kQ
464kO
274 Q
23.7 kO
1.21 kO
470kO
10kO
'4.7kO
10kO
127 kO
13.3kQ
6820
100kO
10kO
100kQ
12.1 kQ
46.4 kQ
464kQ
59kO
3.01 kQ
100kC
1MC
.12.7kQ
10kQ
95.3 kQ
100kO
33.2 0
196kQ
21.5kQ
Idj. only
5.11 kQ
19.8kO
100kO
18.2kO
100kO
_0
TKfiO
TK&O
TK25
TK25
TK25
TK25
~TK60
TK60
TK60
TK50
TK60
TKIO
TK60
TK50
TKfiO
TK50
TKBO
TK50
TKeo
TK60
TKeo
TK60
TKeo
1W
TK60
TKSO
TK60
TK26
TK26
TK&O
TK50
TK60
TK50
TK60
TK60
TK50
TK60
TKSO
TK50
TK60
TK60
TK60 I
TK60 I'
~I
TKIO :
1160
TKeo
TK60
TK60
TK60
TK60
TKSO
TK50
TK8)
!KlO
TK60
~.025"
1~
1~
O.ß
O.5~
0.1'"
o..1~
D.1~
,~
1'1;
1.
t5"
,~
1~
..'"
t~
1~
1--
1~
1~
1~
1~
1~
1~
1~
2'%
1%
1%
1%
0.1%
0.1~
1%
1%
1%
~1%
1%
1%
1%
1%
1%
1%
1%
1%
1'%
1S
t.-.
1.
1.
,~
.
%
%
%
%
%
g
Q
g
Q
t~
,~
1~
1~
464
100
464
100
Electronic Parts List
ile
Descriptton
TL81
ICl80691.2V
lF356
AD536
JCl7660
ICl7135
Tl 82
ICl 8089
NE555
79l05
78L05
4081
4093
~
01
02
m
04
~
~
0.1
27
100
82
2.2
68
24.4
10
10
22
6.8
22
22
10
2.2
10
2.2
2.2
10
0.1
0.1
6.8
6.8
0.22
0.22
10
10
0.33
1
1
10
220
22
47
10
10
10
,~V
1CKM>V
83V
83\1
1S)\I
83\1
83\1
630V
36V
63V
4OOV
40\1
40\1
36V
63V
36V
63V
63V
630V
250V
250\1
400V
400\1
100V
100V
630V
36\1
1~\I
100\1
100\1
35V
160\1
63\1
25V
35\1
35V
35\1
2~
6"-
20%
10%
2.5"-
10~
1%
20%
~
pF
pF
pF
nF
pF
nF
nF
~F
nF
pF
i,1F
~
~F
~F
~F
l1f
~F
nF
~F
~F
pF
pF
~
i,1F
nF
~F
~
~F
~F
~F
pF
nF
~F
~F
~F
~F
2W
2W
107
C8
09
10
11
12
13
20%
5%
4511
K:201
~= 7806
7812
7812
2~
20%
20%
6%
6%
20"-
20%
20%
2N2219
BC567
J112
BC237
8C239C
01
02-104
05-106
07-111
09
2.5~
2K
~
2.K
~
~
BC567
1kQ Iin. 20%
2.5kQ ~n.20%
500 g'lin. 20"-
100kQ In. 2K
470 g!in. 20"-
1kQ lin. 20%
4.7kQ lin. 20%-
2-22pF
2-22pF
2-22pF
C201-- 100IAF
C301 1000IAF
C302 10j4F
C303 22nF
C304 1000j4F
C305 10j4F
C306 22nF
C307 1000j4F
C308 10jAF
C309 22nF
C310 0.01j4F
C311 10jAF
C312 10jAF
C313 10jAF
0101
0102-0113
D114
0116
0..,8
Ot17
0118
0119
0120- 0123
0126
18VV
26V
36V
83V
26V
~V
83V
26V
~V
83V
3kV
.V
.V
.V
VC 101
VC 102
VC 103
20%
20%
20%
~V
5.6V
O.2A
2A
VI 101-104
VZ106 1/4W
F101
F102
8250 C1500
8R101
i R~1R~2
R303
~~1
B260C1600
8260 C1600
8260C1600
Tr8fo2x12.6V
EM513
1N4149
FDH 300
FDH 300
1N4149
1N4149
1N4149
FDH 3(X)
1N4149
EM513
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