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Omicron CMA 56 User Manual

Omicron CMA 56
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Current amplifier CMA 56
40
7.2 Outputs Current 1, 2, 3
3 Current Outputs
1
Output currents
3-phase AC
3 0 ... 50A
1-phase AC (1+2+3)
2
1 0 ... 150A
1-phase DC
1 0 ... 50A
Output power
3-phase AC
3 140VA at 15A; see page 42
1-phase AC (L-L)
3
1 280VA at 15A; see page 37 and p. 42
1-phase AC (1+2+3)
2
1 420W at 45A
1-phase DC (L-N)
1 280W at 21A
Accuracy
4
typ. error < 0.03%
guar. error < 0.1%
Harmonic distortion
5
typ. < 0.1%
guaranteed < 0.3%
Bandwidth (-3dB)
> 8kHz
Phase lag at
50Hz / 60Hz
1.07° / 1.28° (output lagging)
(autom. corrected by the CMC test device)
DC offset current
typ. < 10mA
DC
guaranteed < 30mA
DC
Short-circuit protection
Open-circuit protection
Short-circuit proof against N.
Open outputs (idling) allowed.
Table 8 Current Outputs
3 Current Outputs
Frequency range
Sine signals
Transient signals
10 ... 1000Hz
DC ... 3.1kHz
Output current resolution
2mA
Frequency resolution
5 µHz
Frequency accuracy/drift
0.5ppm/1ppm
Phase range
-360° ... + 360°
Phase resolution
0.001°
Phase error
6
typ. 0.02°
guaranteed < 0.1°
Table 9 Current outputs, specifications valid only if the CMA 56 is controlled
by a CMC test device
1
Information for three phase system valid under symmetrical conditions (0°, 120°, 240°)
2
Parallel connection of all three phases
3
Single phase model: 2 currents in series.
4
Percentage refers to nominal current (50A).
5
Values at nominal current (50A), 50/60 Hz and 20 kHz measuring band width.
6
Valid for sine signals with 50/60Hz.

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Omicron CMA 56 Specifications

General IconGeneral
BrandOmicron
ModelCMA 56
CategoryAmplifier
LanguageEnglish