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F i r s t - t i m e o p e r a t i o n
Measurement Source
range
Impedance
1
25.0 Ω
2
25.0 Ω
3
400.0 Ω
4
6.4 kΩ
5
100.0 kΩ
6
100.0 kΩ
As the impedance of capacitors is inversely proportional to fre-
quency larger capacitances are measured in the lower impedance
ranges. Hence the proper range may change if the frequency
changes.
In case that several similar components have to be measured
in turn, the measurement time can be shortened, if the first
component is measured with autoranging on. The button AUTO/
17
HOLD
should be pressed to change from automatic range
mode to manual range mode and hold it. The button AUTO/HOLD
will extinguish.
In order to prevent measurement errors due to false operation
and uncertainties, it is advisable to always use automatic range
selection. Manual range selection should preferably be used if
highest precision is desired. In order to uprange press UP
order to downrange press DOWN
4.8
Switching the equivalent measurement
circuitry
If automatic selection of measurement circuitry is enabled
(by pressing the AUTO
14
button) the HM8118 automatically
selects the resp. equivalent circuit (serial or parallel), which
provides the most precise measurement depending on the
connected component (ref. also to chap. 4.7). The measure-
ment circuit can also be selected manually (by pressing the
SER button
15
for serial mode or by pressing the PAR button
16
for parallel mode).
The SER/PAR mode represents the equivalent circuit of the mea-
suring circuit. Traditionally, the inductance of coils is measured
in a series circuit (serial); however there are cases where a
parallel circuit will yield a better representation of the compo-
nents. The core of coils with an iron or ferrite core for example
may contribute most of the losses. A series circuit should be
prefered if most of the losses are resistive, or they occur within
the connection wires of wired components.
In automatic mode the instrument selects the serial equivalent
circuitry for impedances below 1 kΩ and the parallel equivalent
circuitry for impedances above 1 kΩ.
42
Subject to change without notice
Impedance of the
component
10.0 µΩ —
3.0 Ω
3.0 Ω
— 100.0 Ω
100.0 Ω
—
1.6 kΩ
1.6 kΩ — 25.0 kΩ
25.0 kΩ —
2.0 MΩ
2.0 MΩ — 100.0 MΩ
18
, in
19
.
Measurement time:
SLOW
Display
Measurement modes:
Auto, L-Q, L-R, C-D, C-R, R-Q, Z-Θ, Y-Θ,
R-X, G-B, N-Θ, M
Equivalent circuits:
Auto, Series or Parallel
Parameters displayed:
Value, Deviation or % Deviation
200 kHz LCR-Messbrücke HM8118
Averaging:
2...99 measurements
Alle Angaben bei 23 °C nach einer Aufwärmzeit von 30 Minuten.
Example to determine the accuracy
Accuracy
of the HM8118
Primary Parameters:
Basic accuracy
(Test voltage: 1.0 V,
Bedingungen
measurement SLOW/MEDIUM,
Testsignalspannung:
1 V
autoranging mode, constant voltage OFF,
Leerlauf- und Kurzschlussabgleich durchgeführt
The accuracy calculation is based on the accuracy table of
bias off). For FAST mode double the basic
Messzeit:
SLOW
the data sheet:
accuracy values
Anzeige
Impedance: 100 MΩ
Messbare Kenngrößen:
Auto, L-Q, L-R, C-D, C-R, R-Q, Z-Θ, Y-Θ,
0.2% + |Z|/1.5GΩ
R-X, G-B, N-Θ, M
4 MΩ
Schaltungsart:
Auto, Seriell oder Parallel
1 MΩ
Angezeigte Parameter:
Wert, absolute Abweichung oder prozen-
tuale Abweichung %
Mittelwertbildung:
2...99 Messungen
0.05% +
|Z|/2GΩ
Genauigkeit
25kΩ
Primärparameter:
Grundgenauigkeit (Testspannung: 1,0 V,
Messmodus SLOW/MEDIUM, Messbe-
reichsautomatik AUTO, Konstantspan-
nung OFF, Vorspannung AUS). Für hohe
200 kHz LCR-Bridge HM8118
Messgeschwindigkeit FAST gelten die
100 Ω
All data valid at 23 °C after 30 minutes warm-up.
doppelten Werte der Grundgenauigkeit.
0.1% + 1mΩ/|Z|
Impedanz:
100MΩ
Conditions
0,2% + |Z|/1,5GΩ
2.5 Ω
4MΩ
Test signal voltage:
1 V
Open and short corrections performed
1MΩ
Measurement time:
SLOW
0.3% + 1mΩ/|Z|
Display
0.01mΩ
0,05% +
Measurement modes:
Auto, L-Q, L-R, C-D, C-R, R-Q, Z-Θ, Y-Θ,
|Z|/2GΩ
20Hz
R-X, G-B, N-Θ, M
25kΩ
Secondary Parameters:
Equivalent circuits:
Auto, Series or Parallel
To calculate the appropriate accuracy, the following parame-
Basic accuracy D, Q:
±0.0001 @ f = 1 kHz
Parameters displayed:
Value, Deviation or % Deviation
ters of the component are required:
Phase angle:
±0.005° @ f = 1 kHz
Averaging:
2...99 measurements
–
component impedance at the appropriate frequency
Ranges
Accuracy
100Ω
–
the measurement frequency itself.
|Z|, R, X:
0.01 mΩ...100 MΩ
Primary Parameters:
Basic accuracy
|Y|, G, B:
10 nS...1000 S
(Test voltage: 1.0 V,
C:
Measuring of a 10 pF capacitor with an impedance of
0.01 pF...100 mF
0,1% + 1mΩ/|Z|
measurement SLOW/MEDIUM,
L:
10 nH...100 kH
15 MΩ at 1 kHz
autoranging mode, constant voltage OFF,
D:
0.0001...9.9999
2,5Ω
bias off). For FAST mode double the basic
Q:
0.1...9999.9
accuracy values
In this case, the first line of the accuracy table is valid:
-180...+180°
Θ:
∆:
-999.99...999.99 %
0,3% + 1mΩ/|Z|
Impedance: 100MΩ
M:
1 µH...100 H
N:
0.95...500
0.2% + |Z|/1.5GΩ
0,01mΩ
4MΩ
20Hz
Measurement conditions and functions
1MΩ
Test frequency:
20 Hz...200 kHz (69 steps)
The values of the component set in into the formula:
Sekundärparameter:
Frequency accuracy:
±100 ppm
15 MΩ
Grundgenauigkeit D, Q:
±0,0001 bei f = 1 kHz
AC test signal level:
50 mV
accuracy
= 0,2% +
0.05% +
@1kHz
Phasenwinkel:
±0,005° bei f = 1 kHz
Resolution:
10 mV
1,5 GΩ
|Z|/2GΩ
Drive level accuracy:
±(5 % + 5 mV)
25kΩ
Messbereiche
Internal Bias Voltage:
0...+5.00 V
calculated / set in:
|Z|, R, X:
Resolution:
10 mV
0,01 mΩ...100 MΩ
External Bias Voltage:
0...+40 V
|Y|, G, B:
10 nS...1000 S
15 x 10
6
Ω
accuracy
= 0,2% +
C:
Internal Bias Current:
0...+200 mA
0,01 pF...100 mF
@1kHz
1,5 x 10
9
Ω
Resolution:
1 mA
L:
10 nH...100 kH
100Ω
Range Selection:
Auto and Hold
D:
0,0001...9,9999
15 Ω
Genauigkeit
= 0,2% +
Trigger:
Continuous, manual or external via
@1kHz
Q:
0,1...9999,9
1,5 x 10
3
Ω
0.1% + 1mΩ/|Z|
interface, Binning Interface or Trigger
-180...+180 °
Θ:
Input
15 Ω
∆:
-999,99...999,99 %
Genauigkeit
= 0,2% +
Trigger delay time:
@1kHz
2.5Ω
0...999 ms in 1 ms steps
M:
1 µH...100 H
1500 Ω
N:
0,95...500
Genauigkeit
= 0,2% + 0,01
0.3% + 1mΩ/|Z|
@1kHz
Messparameter und -funktionen
HM8118E/250112 · C&E · Subject to change without notice · © HAMEG Instruments GmbH
Messfrequenzbereich:
20 Hz...200 kHz (69 Stufen)
HAMEG Instruments GmbH · Industriestr. 6 · D-63533 Mainhausen · Tel +49 (0) 6182 8000 · F
0.01mΩ
At last, the units need to be adapted, because the second
Frequenzgenauigkeit:
±100 ppm
20Hz
AC Testsignalpegel:
50 mV
summand has no unit relation, yet:
Secondary Parameters:
Auflösung:
10 mV
Pegelgenauigkeit:
Basic accuracy D, Q:
±(5 % + 5 mV)
±0.0001 @ f = 1 kHz
accuracy
= 0,2% + 0,01 = 0,2 + (0,01 x 100%) = 0,2% + 1% = 1,2%
@1kHz
Interne Biasspannung:
Phase angle:
±0.005° @ f = 1 kHz
0...+5,00 V
Auflösung:
10 mV
For the 10pF component this leads to:
Externe Biasspannung:
0...+40 V
Ranges
Interner Biasstrom:
|Z|, R, X:
0.01 mΩ...100 MΩ
0...+200 mA
|Y|, G, B:
Auflösung:
1 mA
10 nS...1000 S
1.2% of 10pF is 0.12pF.
C:
Bereichswahl:
0.01 pF...100 mF
Auto und Hold
L:
Trigger:
10 nH...100 kH
Kontinuierlich, manuell oder extern über
Based on the calculation the displayed value will be between
D:
0.0001...9.9999
Schnittstelle, Handler Interface oder
Q:
0.1...9999.9
Triggereingang
10pF - 0.12pF = 9.88pF and 10pF + 0.12pF = 10.12pF.
-180...+180°
Θ:
∆:
-999.99...999.99 %
HM8118D/250112 · C&E · Änderungen vorbehalten · © HAMEG Instruments GmbH
M:
1 µH...100 H
HAMEG Instruments GmbH · Industriestr. 6 · D-63533 Mainhausen · Tel +49 (0) 6182 8000
N:
0.95...500
Measurement conditions and functions
Test frequency:
20 Hz...200 kHz (69 steps)
Frequency accuracy:
±100 ppm
0.5% +
|Z|/100MΩ
0.1% +
|Z|/1,5GΩ
0.2% +
|Z|/100MΩ
0.5% +
5mΩ/|Z|
+
0.2% +
|Z|/10MΩ
2mΩ/|Z|
0.5% +
0,5% +
2mΩ/|Z|
|Z|/100MΩ
0,1% +
|Z|/1,5GΩ
1kHz
10 kHz
100 kHz
0,2% +
|Z|/100MΩ
0,5% +
5mΩ/|Z|
+
|Z|/10MΩ
0,2% +
2mΩ/|Z|
0,5% +
2mΩ/|Z|
1kHz
10kHz
100 kHz
0.5% +
|Z|/100MΩ
...1.5 V
0.1% +
rms
rms
rms
|Z|/1,5GΩ
dc
0.2% +
(fused 0.5 A)
|Z|/100MΩ
dc
0.5% +
5mΩ/|Z|
+
0.2% +
|Z|/10MΩ
2mΩ/|Z|
0.5% +
2mΩ/|Z|
1kHz
10kHz
100 kHz
...1,5 V
Eff
Eff
Eff
DC
(Sicherung 0,5 A)
DC
Front-end Pro
Low Potential
Low Current G
Constant Volt
Temperat
Trigger Ver
R, L or C:
Messzeit (f
Interface:
FAST
MEDIU
Safety Class:
SLOW
Power supply
Power consum
Versch
Operating tem
Testsignalp
Storage temp
Abgleich:
Rel. humidity
Save/Recal
Dimensions (W
Eingangssc
Weight:
Guarding fü
Spannunge
Accessories su
Konstantsp
Test Cable and
Tempe
Recommended
R, L od
HO118
Binnin
Schnittstel
HO880
IEEE-
HZ13
Interf
Schutzart:
HZ14
Interf
Netzanschl
HZ33
Test c
Leistungsa
HZ34
Test c
Measureme
Arbeitstem
HZ42
19" R
Lagertemp
FAST
HZ72
GPIB-
Rel. Luftfeu
MEDIU
HZ181
4 Term
HZ186
Abmessung
SLOW
4 Term
Gewicht:
Other I
Test signal
Im Lieferum
Error Corre
Save/Recal
Messkabel,
Empfohlene
Front-end P
HO118
Bin
Low Potent
HO880
IEE
Low Curren
HZ13
Sch
Constant Vo
HZ14
Sch
HZ33
Tempe
Me
HZ34
R, L or
Me
Interface:
HZ42
19"
HZ72
IEE
Safety Clas
HZ181
4 D
HZ186
Power supp
4 D
Power cons
Operating t
Storage tem
Rel. humid
Dimensions
Weight:
Accessories
Test Cable a
Recommend
HO118
Bin
HO880
IEE
HZ13
Int
HZ14
Int
HZ33
Tes
HZ34
Tes
HZ42
19"
HZ72
GP
HZ181
4 T
HZ186
4 T
®
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· DQS-
®
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