Specifications

13 Signametrics
2.8 Additional Component Measurements
2.8.1 Diode Characterization
• Available DC current values 100 ηA, 1 µA, 10 µA, 100 µA and 1 mA. SMX2042 and SMX2044 add 10
mA. SMX2044 has a variable current from 10 ηA 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 reading + Farads) [1]
Range Full Scale
4 ½ Digits
Resolution One Year
23°C ± 5°C
10 ηF 11.999 ηF
1 pF 2.1 ± 5 pF
100 ηF 119.99 ηF
10 pF 1.0
1 µF 1.1999 µF
100 pF 1.0
10 µF 11.999 µF 1 ηF
1.0
100 µF 119.99 µF 10 ηF
1.0
1 mF 1.1999 mF
100 ηF
1.2
10 mF 11.999 mF
1 µF
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 ηF range, which measures down to 0 pF.
2.8.3 Inductance Measurement (SMX2044)
± (% of reading + inductance) [1]
Range Default
frequency
Full Scale
4 ½ Digits
Resolution
Accuracy 23°C ± 5°C
One Year [2]
33 µH
75 kHz
33.000 µH 1 ηH 3.0% + 500 ηH
330 µH
50 kHz
330.00 µH 10 ηH 2.0% + 3 µH
3.3 mH 4 kHz 3.3000 mH
100 ηH 1.5% + 25 µH
33 mH 1.5 kHz 33.000 mH
1 µH 1.5% + 200 µH
330 mH 1 kHz 330.00 mH
10 µH
2.5 + 3 mH
3.3 H 100 Hz 3.3000 H
100 µH
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 reading + Farads) [1]
Range Full Scale
4 ½ Digits
Resolution One Year
23°C ± 5°C
33 ηF 32.99 ηF
10 pF 12% ± 250 pF
330 ηF 329.9 ηF
100 pF 5% ± 500 pF
3.3 µF 3.299 µF
1000 pF
4% ± 1 ηF
33 µF 32.99 µF 10 ηF 5% ± 20 ηF
330 µF 329.9 µF 100 ηF 5% ± 1 µF
3.3 mF 3.299 mF
1 µF 7% ± 50 µF
[1] Specified to 2/3 of range (ie. 22 ηF 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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