California Instruments 1251RP Series Instrukcja Użytkownika Strona 11
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ISO 9001:2000
An Company
CTS Series - Measurement Specications
The following specications are valid for
the power analyzer portion of the CTS.
PC Based A/D Conversion
The Harmonics Analyzer i data, an impor-
tant requirement for compliance with IEC
61000-4-7 as well as IEC 61000-4-15.
Signal Conditioning
The Power Analyzer and Conditioning Sys-
tem (PACS) unit is used to provide isolation
between the PC based acquisition system
and the Equipment Under Test (EUT). Preci-
sion current transformers provide accurate
current sensing over three dierent current
ranges for maximum resolution. The PC
based acquisition system captures data on
all current ranges and automatically selects
the appropriate range to use for further
processing. This eliminates the need for
range switching as is commonly done in
conventional power analyzers.
Anti-aliasing filters are provided for all
voltage and current channels to prevent
unwanted frequency components from
aecting the measurement results.
The PACS unit provides a convenient way
for the user to connect the unit under test.
A single signal cable connects between the
PC and the PACS unit and provides all the
analog and digital signals needed to and
from the A/D card.
A high current version of the PACS-3 (PACS-
3-75) is supplied with the 300-CTS-75 and
MX-CTS system.
Measurement Specication Unit
Bandwidth
Anti Aliasing > 60 dB at 5 kHz
Bandpass ripple < 2 % up to 2.5 kHz %
Volts
Range 0.001 - 312.00 V
rms
Max. input 1000 V
peak
Max. crest factor 5:1
Accuracy ±0.1 % ± 0.05 % FS ± 3 mV
Resolution 10 mV
Voltage CMRR 80 dB
RMS Current
Current ranges (Auto ranging) 4, 16, 40 / 75 A
rms
Highest range 40 / 75 A
rms
Max.input[permanent,
no damage if < 200 A
peak
] 40 / 75 A
rms
Max.CF[40/75ARange] 5:1/2:5:1 @maxIrms
Max.CF[4ARange] 20:1 @maxIrms
Accuracy ±0.1 % ± 0.05 % FS ± 3 mA mA
Resolution 1 mA
Power
Range 0.1 - 24,000 W
Accuracy ±0.25 % ± 0.25 % FS ± 20 mW mW
Resolution 0.1 W
Apparent Power
Range 0.1 - 24,000 VA
Accuracy ±0.15% ± 0.15% FS±20mVA mVA
Resolution 0.1 VA
Power Factor
Range 0.000 - ± 1.000
Accuracy ± 0.005
Resolution 0.001
Crest Factor
Range 20:1
Accuracy ± 0.005
Resolution 0.001
Frequency
Range 45.0 - 65.0 Hz
Accuracy 0.01 % of reading Hz
Resolution 0.1 Hz
Harmonic Analysis
Range Fundamental to 40
th
Accuracy Fundamental ±0.05% FS±0.05%/kHz
Accuracy Harmonics ±0.1 %±0.1%/kHz
Interharmonics resolution 5 Hz
Measurement window 10, 12 and 16 periods
Smoothing lter 1.5 sec
Flicker
Pst Range 0.1 - 5 Pst
Accuracy 3 %
Resolution 0.01
Integration time 10 min
Plt Range 0.1 - 5
Integration time 120 min
dmax Range 0 - 100 %
dc Range 0.1 - 100 %
dt Range 0.1 - 100 %
dt over 3.3% Range 0 - 2000 ms
Note: For three phase congurations, all specications are for L-N. Phase angle specications are valid under balanced load conditions only. For PACS-3-75 models, maximum current range is 75 Arms.
CI400PCI - PCI A/D Card
CI68C - PACS to PC Cable
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