California Instruments | 1251RP Series | California Instruments 5001IX-CTS Datasheet

Certified IEC Compliance
Certified by the National Physics Laboratory in the
United Kingdom for full compliance with the IEC
Harmonics and Flicker standards.
PC Based IEC Test System
High speed PC Based data acquisition system
streams all data to disk.
Field Upgradable
Software only upgrades to meet future
standard requirements
IEC 61000-3-2 Harmonics
IEC 61000-3-3 Flicker
IEC 61000-4-11 Voltage Dips
and Variations
IEC 61000-4-13 Harmonics
& Interharmonics
IEC 61000-4-14 Voltage Fluctuations
IEC 61000-4-17 DC Ripple
IEC 61000-4-28 Frequency Variations
IEC Compliance
Test Systems
CTS Series
Unique Features
Modular Architecture
The CTS system is a complete IEC
compliant test system, consisting of a
separate AC power source and a PC
based AC power analyzer.
Single and Three phase systems
to accommodate a range of power
Direct PC bus access data acquisition system provides high sampling rate and resolution for accurate measurements and high
speed data transfers, even in three
phase mode.
PC based harmonic and flicker test
software provides real-time full
color data display updates and
continuous PASS/FAIL monitoring.
Support for both European and
Japanese standards.
Simple user operation under Windows 95/98® or Windows NT®, provides IEC test setup, data analysis, display and reporting.
High resolution, no gap acquisition
data storage to disk in ASCII format for post-acquisition analysis
and reporting.
Single Step and Fast Forward replay of recorded test data.
Programmable IEC compliant AC
power source in single or three
phase configurations.
PC Based single or three phase
digital power analyzer (PC not included).
Choice of ISA, PCI or PCMCIA
based A/D cards to accommodate
desktop or laptop PC’s.
Harmonics Analyzer and Flicker
meter software.
Programmable reference impedance per IEC 725 for Flicker and
Japanese Harmonics measurements.
Optional IEC 725 lumped flicker
reference impedance available for
European Flicker standard.
Optional Electronic Output Switch
(EOS) to meet IEC 1000-4-11
source requirements.
Full Featured AC Power
Available in a choice of power levels
ranging from 1250 VA to 30,000 VA,
CTS Systems cover the complete
range of single and three phase products that need testing to conform with
existing and pending IEC standards.
All iX Series AC sources meet IEC requirements for low voltage distortion
and offer arbitrary waveform generation, precision measurements, and
waveform analysis capabilities.
All iX Series based CTS systems support full compliance IEC 61000-4 AC
immunity test as well (certain options
may be required).
The 1251RP source meets the same
requirements for low power loads with
crest factors less than three. AC
Source voltage distortion is measured
in real-time during the harmonics test
and any distortion that could affect the
test results is clearly indicated.
CTS Series - System Components
Source Control
The IEC GUI software controls the AC
power source using the IEEE-488 or
RS232C interface. Settings for nominal voltage and frequency are automatically applied and possible overload
conditions are detected and reported
to the operator. IEC 61000-4 AC immunity tests run completely under software control.
PC Bus Data Acquisition
Harmonics Analyzer
A high speed digital signal processor
based data acquisition system is used
to implement the required IEC compliance measurement system. Direct access to the PC bus ensures a much
higher data throughput capability than
typically found in single box IEC test
systems that use the IEEE-488 instrumentation bus to communicate with the
A key part of the CTS system is the
IEC compliant power analyzer which
provides detailed information on both
voltage and current harmonics. Measurements are made in real-time with
no measurement gaps to fully conform
to IEC 61000-3-2 transitory harmonics
test requirements. AC source voltage
and EUT power are monitored continuously during the entire test. Voltage distortion and current harmonic data is checked
against IEC class limits
for pass or fail detection. Comprehensive
test reports can be generated easily. Continuous measurement of
the EUT power consumption allows class
C and D test limits to be
calculated dynamically.
A special signal conditioning and isolation unit is used to provide quick and
easy connection between the AC
source output and the Equipment Under Test. This unit provides the required isolation, signal conditioning and
anti-alias filtering for the measurement
system. The equipment under test can
be plugged in the front panel mounted
European style outlet, or wired to a rear
panel mounted terminal block. An optional international socket strip with
multiple country specific outlets is available.
Test limits are retained
in a password protected
database and can be
updated if needed in the
future without the need
to change software. Other software
changes as a result of changing IEC
harmonics standard can be accomplished by simply downloading new PC
software. No harmonics testing software resides in system firmware which
would require more costly upgrades.
Flicker Meter and Impedance
An IEC 868 compliant flicker meter is
provided with the CTS software. The
required IEC 725 compliant reference
impedance is implemented in the iX
Series AC Source using programmable
output impedance. Programmable impedance offers improved accuracy
compared to a lumped reference impedance and the ability to support different national standards without the
need to switch out lumped reference
impedance hardware. A good example
is testing for compliance with the Japanese harmonics and flicker standard,
which requires different impedance
values to be programmed from the
European test standard.
Optionally, a lumped impedance compliant with IEC 725 can be ordered for
both single and three phase iX Series
based CTS systems. The GUI software can be configured to use either
impedance type during flicker testing.
The three phase lumped impedance
option (-LR3) for the 15003iX-CTS system is shown here. The 30003iX-CTS
system does not support programmable impedance and requires option
-LR4 for flicker testing.
The RP-Series based CTS systems
use a lumped impedance integrated in
the PACS-1RP and PACS-1RP2.
CTS Series - IEC 61000-3-2 Harmonics Test
Both Voltage and
Current waveforms
are shown in realtime. For class A
and D test, the special waveshape template (red) is shown.
Simple buttons start
and stop automated
Key EUT electrical parameters are updated
User selectable test
limit margin.
Bottom graphs show
current harmonics
against IEC class
limits. The user can
also view the source
voltage harmonics
in real-time.
Test start time and test
progress are clearly indicated.
Clearly marked Pass
(Green) or Fail (Red) indication is active during
the entire test run. AC
Source distortion is
also monitored at all
Graphs and reports
provide complete test
data documentation.
IEC Harmonics Test Window
Equipment Under
Test description and
operator ID are
added to all test reports.
Simple User Interface
Test Reports & Data Logging
All IEC Harmonics tests can be accessed from a single
control and data display window on the PC. Both Quasi
Stationary and Transitory (Fluctuating) Harmonics tests can
be run. The operator is presented with a simple screen that
shows the type of test that will be run and the test duration.
Clearly labeled buttons are provided for Starting and Stopping a test. During the test run, voltage and current time
domain waveform displays are updated in real time. The
left part of the display shows all power analyzer parameters for the EUT such as VRMS, IRMS, IFUND IPEAK, Real Power,
Apparent Power and Power Factor. The current harmonics
window displays instantaneous current harmonics and a
line marking the applicable test limits. During the entire test
run, a clear PASS or FAIL indication is provided. Any conditions occurring during the test run that may affect the test
results can be displayed. This includes voltage THD of the
AC source, which is monitored during the entire test. Information about the operator and the unit under test can be
entered. A general user comment field is provided to enter
any relevant data concerning the test. All this information is
added to the final test report.
A complete IEC harmonics test report, which includes all
test results for the EUT, can be printed at the end of the
test. This report includes graphs showing voltage and current waveforms as well as current harmonic spectrum and
class limits. All graphs are included in the test report or can
be copied to the Windows® Clipboard for inclusion in custom reports. Comprehensive test data, including timing
waveform data, is available from disk for use in detailed
Available Data Displays
reporting or further data analysis applications. Data is stored
in ASCII format files that can be loaded directly in popular
spreadsheet programs. A test file replay mode is supported
by the CTS system software that allows frame by frame
playback of test data files for detailed analysis of EUT behavior.
The following graphics displays are provided in the IEC
61000-3-2 test program
Voltage and Current time domain
Current Harmonics and IEC limits graph
AC Source Voltage Harmonics and IEC
limits graph
Numeric display of F, VRMS, IRMS, IFUND,
Real-time Voltage Distortion against IEC limit
CTS Series - IEC 61000-3-3 Flicker Test
Start and Stop Flicker
tests with the click of
a button.
Select test parameters
and data display options.
Start time, current
time and stop time
IEC Test limits can be
changed for pre-compliance applications.
Highest values found
during test are continuously shown and
Real time display of dt,
dc and Vrms.
Continuous readouts of
Vrms, dmax, dc, Plt and Pst
provide test progress
Clear Pass (Green) or
Fail (Red) indication
leaves no doubt about
the test result.
Equipment Under Test
description and operator
ID are added to all test
User selectable test
IEC Flicker Test Window
Simple User Interface
Available Data Displays
The Flicker test software module uses a similar user interface as the Harmonics module. This makes it instantly familiar to the user. Setup is minimal and test runs can be
started quickly. During the test run, graphical displays of
VRMS, dc and dt as a function of time are updated continuously. The bottom part of the display shows Flicker test
related parameters for the EUT such as VRMS, dmax, dc and
dt. At the end of the test sequence, short term (Pst) and long
term Flicker (Plt) are calculated and a clear PASS or FAIL
indication is provided.
The following graphics displays are provided in the IEC
61000-3-3 test program:
Chart of dc and dt versus time
Chart of VRMS versus time
Color PASS/FAIL indicator
Numeric display of VRMS, dmax, dc, Pst, and Plt
Numeric display of maximum dc, dmax, dt, Pst and Plt
IEC 725 Reference Impedance
The reference impedance required to perform flicker measurements per IEC 725 is built-in to the PACS-1RP unit for
the 1251RP-CTS system or the PACS-1RP2 for the
2001RP-CTS system. All iX Series based CTS configurations use the programmable output impedance of the AC
Source to provide the required output impedance. Users
that prefer to use a lumped reference impedance can order
option -LR1 for single phase iX-Series based CTS systems
or option -LR3 or -LR4 for three phase systems.
Real-time display of instantaneous Pst
Test Reports and Data Logging
A summary IEC 61000-3-3 Flicker test report can be printed
at the end of the test which includes all test results for the
EUT. Refer to the section on IEC 61000-3-2 for report details and capabilities. A test file replay mode is supported
by the CTS system software that allows frame by frame
playback of test data files for detailed analysis of EUT behavior.
CTS Series - IEC 61000-4 Immunity Test1
iX-Series based CTS systems are supplied with additional software that allows a series of AC immunity tests to be
performed on the unit under test. Pass or Fail results are determined by the user based on an evaluation of the unit under
test at the end of the test run.
IEC 61000-4-11 Voltage Dips and Interruptions Test2
The Voltage Dips and Interruptions test are included in the
AC source control program supplied with the CTS system.
The operator is presented with a simple screen that shows
the type of test that will be run and the test duration. The
operator can enter the desired nominal test voltage and
Clearly labeled buttons are provided for Test Run and Test
Abort. During the test run, the EUT load current is measured to help the operator observe any EUT failures.
Test parameters can be changed by the user if needed to
accommodate different test levels called out by product standard committees. For AC source compliance, the EOS option is required. This option is available on 3001iX-CTS,
5001iX-CTS and 15003iX-CTS systems.
IEC 61000-4-11 Test Window
IEC 61000-4-13 Harmonics and Interharmonics3
The iX Series AC/DC Source can be equipped with the
-413 option to provide full support for IEC 61000-4-13 Harmonics and Interharmonics testing. An independent, digitally controlled sweep generator is used to superimpose
interharmonics on the AC output. The high speed data
acquisition system is used to determine EUT resonance
points during the frequency sweep test. Flat top curve and
overswing curve waveforms are generated using the arbitrary waveform generation capability of the iX Series AC/
DC source.
At the end of the test run, a detailed test report can be
printed for complete documentation of test setup and results.
IEC 61000-4-13 Test Window
IEC 61000-4-14 Voltage Fluctuations, IEC 610004-17 DC Ripple4 & IEC 61000-4-28 Frequency
Rounding out the suite of IEC 61000-4 test programs are
IEC 61000-4-14 Voltage Fluctuations, IEC 61000-4-17 DC
Ripple and IEC 61000-4-28 Frequency Variations immunity tests. Test parameters are pre-programmed or can be
modified easily if needed. The user is capable of specifying
a library of test sequences and test levels for different product categories. These test setups can be quickly recalled
for application to the EUT.
At the end of each test run, a test report can be generated
by clicking on the Print Report button.
IEC 61000-4-14 Test Window
Compliant IEC 61000-4 Tests are not supported on RP-Series based CTS systems or systems without an AC source (100-CTS and 300-CTS).
IEC 61000-4-11 AC Source compliance requires -EOS option.
IEC 61000-4-13 test requires -413 option.
IEC 61000-4-17 test requires iX Series based CTS systems.
CTS Series - Report Generation
MS Word Test Reports
Test reports for harmonics, flicker and
immunity tests are generated using MS
Word format. This widely used format
report can be integrated into more
elaborate reports covering all aspects
of compliance testing if needed.
Test reports contain data on the EUT,
the test lab and operator, all measurement results and a clear pass or fail
indication. Harmonics test reports include current harmonics and voltage
harmonics data in both bar charts and
tabular formats.
Detailed measurement data is also
available on disk and can be exported
to a tab delimited ASCII text format for
use in other application programs such
as MS Excel. This allows further analysis of the acquired data for engineering troubleshooting purposes of EUT’s
that did not pass.
Note: A copy of MS Word must be installed on the PC to generate test reports.
CTS Series - PACS Specifications
The Power Analyzer and Conditioning System unit provides the required interface between the AC source, the Equipment
Under Test and the PC. Single phase CTS Systems are supplied with a PACS-1, three phase CTS systems are supplied
with a PACS-3. RP Series based CTS systems include a lumped reference impedance in the PACS-1
PACS Model:
Voltage and Current
Front panel
CEE/77 front
Rear panel
terminal block
terminal block
Front panel
240 Vac
Rear panel
300 Vac
480 Vac
Front panel
16 Arms
Rear panel
40 Arms
40 Arms/phase
RP-Series CTS:
iX-Series CTS:
programmable Z
programmable Z
Optional Lumped:
option -LR1
option -LR3/-LR4
3.5 x 16.8 x 22
5.25 x 16.8 x 22
89 x 427 x 560
134 x 427 x 560
Number of phases
Connector Style
Maximum voltage
Maximum current
IEC 725 Reference
30003iX-CTS systems do not offer programmable impedance and require option -LR4 for Flicker test. Options -LR1
and -LR3 may be added to 3001iX-CTS / 5001iX-CTS or 15003iX-CTS configurations to be used in lieu of the
standard programmable impedance. Option -LR1 is built-in to PACS-1. Option -LR3 and -LR4 consist of OMNI-3-18i
and OMNI-3-37i respectively. See OMNI data in options section of this catalog.
CTS Series - Measurement Specifications
The following specifications are valid for
the power analyzer portion of the CTS.
PC Based A/D Conversion
The Harmonics Analyzer is implemented using a high performance Digital Signal Processor based PC plug-in
A/D card. This digitizer connects directly to the Power Analyzer and Conditioning System (PACS) unit through
a shielded cable. No other connections
between the PACS unit and the PC are
The use of a fast multi-channel A/D card
that transfers data to PC memory using Direct Memory Access (DMA) enables the CTS to perform continuous
measurements without any gaps in
measured data, an important requirement for Transitory Harmonics and
flicker testing.
A choice of ISA, PCI or PCMCIA (PCCardbus) options is available to accommodate a wide range of PC platforms.
Note: PCMCIA (-MC Option) only supports single phase CTS configurations.
Signal Conditioning
The Power Analyzer and Conditioning
System (PACS) unit is used to provide
isolation between the PC based acquisition system and the Equipment Under Test (EUT). Precision current transformers provide accurate current sensing over three different 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
affecting the measurement results.
Anti Aliasing
> 60 dB at 5 kHz
Bandpass ripple
< 2 % up to 2.5 kHz
0.001 - 312.00
Max. input
Max. crest factor
±0.1 % ± 0.05 % FS ± 3 mV
Voltage CMRR
RMS Current
Current ranges (Auto ranging)
4, 16, 40
Highest range
Max. input [permanent,
no damage if < 200 Apeak]
Max. Crest Factor [High Range]
Max. Crest Factor [Low Range]
±0.1 % ± 0.05 % FS ± 3 mA
0.1 - 12,500
±0.25 % ± 0.25 % FS ± 20 mW
Apparent Power
0.1 12,500
±0.15% ± 0.15% FS±20mVA
Power Factor
0.000 - ± 1.000
± 0.005
Crest Factor
± 0.005
45.0 - 65.0
0.01 % of reading
Harmonic Analysis
Fundamental to 40th
Accuracy Fundamental
±0.05% FS±0.05%/kHz
Accuracy Harmonics
±0.1 %±0.1%/kHz
Measurement window
16 periods
Smoothing filter
0.1 - 10
Integration time
0.1 - 10
Integration time
0 - 100
0.1 - 100
0.1 - 100
dt over 3% (4%) Range
0 - 1000
The same PACS unit also 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.
CI400PCI - PCI A/D Card
CI68C - PACS to PC Cable
Note: For three phase configurations, all specifications are for L-N. Phase angle specifications are valid under balanced load conditions only.
Ordering Information
iX Series CTS Options:
For specifications on the AC power source included with each CTS system,
refer to the relevant AC Source data sheet.
VA Power
Single Phase Systems
AC Line
1250 VA
2000 VA
3000 VA
5001iX-CTS (-400)
5000 VA
Three Phase Systems
AC Line
15003iX-CTS (-400) 15000 VA
30003iX-CTS (-400) 30000 VA
AC Source
IEC 61000-4 PACS model
5001iX (-400)
15003iX (-400)
30003iX (-400)
PC Requirements
The CTS requires the use of a PC capable of running Windows 95/98® or
Win NT 4.0/2000. For best performance, networking should be disabled.
Recommended PC hardware specifications are as follows:
Pentium 333 MHz or
64 Mbytes or more.
Hard Disk 500 Mbytes or more.
20 Mbytes required for
program storage.
Color SVGA Monitor
Available PCI, ISA or
PCMCIA slot for A/D
Software MS Word, Windows
If IEEE-488 is used for
AC source control, a
National Instruments bus
controller and available
PC slot is required. An
RS232C serial port can
be used also.
California Instruments will quote a PC
as part of the system on request. Contact factory for details.
One of the following A/D cards must be
specified with any CTS order:
Card. (default)
CI400PCI PCI Bus, 16 bit
A/D Card
Card. (Single phase CTS
configurations only.)
Dimension drawing PACS-1 / PACS-3 unit
Lumped Reference
Impedance for single
phase iX Series based
Lumped Reference
Impedance for 15003iXCTS. (OMNI-3-18i)
Lumped Reference
Impedance for three
30003iX-CTS. (OMNI-337i)
IEC 61000-4-11 AC
source compliance
Electronic Output Switch
for single phase CTS
IEC 61000-4-11 AC
source compliance
Electronic Output Switch
for 15003iX System.
IEC 61000-4-11 Voltage
Dips and Interruptions
test option.
IEC 61000-4-13 Harmonics and InterHarmonics test option.
Internal AC Line Sync.
(iX Series only)
External AC Line Sync.
(iX Series only)
General Options:
Rack mount slides.
Spare ISA A/D card.
Spare PCI A/D Card
Spare 37 pin signal
interface cable for ISA.
Spare 37 pin signal
interface cable for PCI.
Spare 37 pin signal
interface cable for MC.
Contact California Instruments:
Toll-Free: 800-4AC-POWER
FAX: 858-677-0940
Web URL:
9689 Towne Centre Drive, San Diego, CA 92121-1964
© Copyright 2000, California Instruments Corp.
(858) 677-9040
Specifications subject to change without notice
FAX : (858) 677-0940
Printed in the USA.
CTS2 05/00
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