13
Signametrics
2.8 Additional Component Measurements
2.8.1 Diode Characterization
•
Available DC current values
100
η
A, 1
µ
A, 10
µ
A, 100
µ
A and 1 mA. SMX2042 and SMX2044 add 10
mA. SMX2044 has a variable current from 10
η
A to 12.5 mA using the DCI source.
•
Typical Current Value Uncertainty
1%
•
Typical Voltage Value Uncertainty
0.02%
•
Maximum diode voltage compliance
4 V
2.8.2 Capacitance Measurement (SMX2042, 44)
Accuracy ± (% of r Farads) [1]
Range Full
Scale
4 ½ Digits
Resolution
One Year
23
°
C
±
5
°
C
10
η
F
11.999
η
F
1 pF
2.1 ± 5 pF
100
η
F 119.99
η
F
10 pF
1.0
1
µ
F 1.1999
µ
F
100 pF
1.0
10
µ
F 11.999
µ
F 1
η
F
1.0
100
µ
F 119.99
µ
F 10
η
F
1.0
1 mF
1.1999 mF
100
η
F
1.2
10 mF
11.999 mF
1
µ
F
2
[1] Within one hour of zero, using Relative control. Accuracy is specified for values higher than 5% of the selected
range with the exception of the 10
η
F range, which measures down to 0 pF.
2.8.3 Inductance Measurement (SMX2044)
± (% of r inductance) [1]
Range Default
frequency
Full Scale
4 ½ Digits
Resolution
Accuracy 23
°
C
±
5
°
C
One Year [2]
33
µ
H
75 kHz
33.000
µ
H
1
η
H
3.0% + 500
η
H
330
µ
H
50 kHz
330.00
µ
H 10
η
H
2.0% + 3
µ
H
3.3 mH
4 kHz
3.3000 mH
100
η
H
1.5% + 25
µ
H
33 mH
1.5 kHz
33.000 mH
1
µ
H
1.5% + 200
µ
H
330 mH
1 kHz
330.00 mH
10
µ
H
2.5 + 3 mH
3.3 H
100 Hz
3.3000 H
100
µ
H
3 + 35 mH
[1] Within one hour of zero, and Open Terminal Calibration.
[2] Accuracy is specified for values greater than 5% of the selected range.
2.8.4 In Circuit AC-Based Capacitance Measurements (SM2044)
Accuracy ± (% of r Farads) [1]
Range Full
Scale
4 ½ Digits
Resolution
One Year
23
°
C
±
5
°
C
33
η
F
32.99
η
F
10 pF
12% ± 250 pF
330
η
F 329.9
η
F
100 pF
5% ± 500 pF
3.3
µ
F 3.299
µ
F
1000 pF
4% ± 1
η
F
33
µ
F 32.99
µ
F 10
η
F
5% ± 20
η
F
330
µ
F 329.9
µ
F 100
η
F
5% ± 1
µ
F
3.3 mF
3.299 mF
1
µ
F
7% ± 50
µ
F
[1] Specified to 2/3 of range (ie. 22
η
F
on 33nF range). Within one hour from last AC-Caps Open calibration. Add
an error of 50e-6*R*C (%) due to paralled resistance.
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