Devices

Conducted Immunity

Devices

Amplifiers

Accessories

Immunity to conducted disturbances, induced by radio-frequency fields

  • IEC 61000-4-6

Bulk Current Injection (BCI)

  • ISO 11452-4
  • MIL-STD 461E, CS 114

Testing devices:

Compact Immunity Test System

CIT-10

The CIT-10 is a complete test system for conducted RF-immunity tests according to IEC/EN 61000-4-6, ISO 11452-4, MIL-STD 461 CS114, SAE-J1113-2, DC 10614 and similar standards. Its internal RFgenerator and RF-power amplifier produce output signals with max. up to 150 W within a frequency range from 100 (10) kHz up to 400 MHz. Generated signals are measured via one of the max. 3 internal RFVolt-meters. Furthermore via an optional, internal directional coupler forward and reflected power can be measured. The whole test system allows full au-tomatic tests for the specified frequency range. As a “stand-alone” test system the CIT-10 is convincing by its easy and comfortable handling and the excellent cost-performance ratio. Addons like coupling/decou-pling devices are available as well.

Special Features

check_circle

Conducted RF immunity tests acc. to IEC/EN61000-4-6 and BCI tests acc. to ISO 11452-4 and MIL-STD 461 CS 114

check_circle

Signalgenerator,RF-power amplifier, RF-power meter and directional coupler (optional) in one 19”-case

check_circle

Stand-alone operation possible with optional available netbook

check_circle

Control-software included

check_circle

Most important parameters are shown on an integrated display

check_circle

Automatic EUT-monitoring

check_circle

Operation via USB port of a PC or Notebook

check_circle

Complete range of CDNs available

Applications

Immunity Testing
Testing according to IEC/EN 61000-4-6, ISO 11452-4, MIL-STD 461 CS114, DC10614 can be performed automatically.

Generation, amplification and
verification of RF-Signals
The internal amplifier amplifies any signal from 100 (10) kHz up to 400 MHz. By using the internal generator a desired narrowband signal can be generated. Signals up to 30 dBm can be measured at the same time. If a directional coupler is installed, forward and reflected power are measured as well.

Technical specifications

RF Voltmeter
(external in-/output)
 CIT-10
Frequency range 10 kHz to 400 MHz
Measuring range +30 dBm to -40 dBm
Accuracy ±0.5 dB
VSWR < 1.1 : 1
Input BNC, 50 Ω
RF-Signal Generator  CIT-10
Output BNC, 50 Ω
Frequency range 10 kHz to 400 MHz
Frequency resolution 1 Hz
Output level range 0 to – 63 dBm
Output level resolution 0.1 dB
Ouput level accuracy ±0.5 dB (± 1 dB max)
Accuracy (frequency) ±5 ppm (TCXO)
Harmonics < -30 dBc
Non harmonics < -45 dBc
Amplitude modulation (internal) 0 to 100 %; resolution 0.5 %
(internal AF-Generator)
Amplitude modulation (external) BNC jack 1 Hz to 100 kHz,
0 to 100% Input impedance > 100 kΩ
Pulse modulation variable duty cycle 10 – 90 %;
resolution 1 % (internal AF Generator)
VSWR < 1.5:1
RF Generator  CIT-10
Output jack BNC
Frequency range 1 Hz to 100 kHz
Frequency resolution 0.1 Hz
Output voltage 0 to 1 V amplitude; resolution 5 mV
Accuracy (frequency) ±50 ppm
Signal Sine wave / square wave / triangular
RF-Voltmeter (internal, 2 pcs.)  CIT-10
Frequency range 10 kHz to 400 MHz
Measuring range +53 dBm to – 0 dBm
Accuracy ±0.5 dB
Directional coupler (optional)  CIT-10
Frequency range 10 kHz to 400 MHz
Power 200 W CW
Insertion loss 0.5 dB max
VSWR 1.25 : 1 max
Directivity 20 dB min

Technical specifications

RF-Power Amplifier  CIT-10
Frequency Range Power Gain Distortion
10kHz – 250 MHz 75 W 51 dB ± 1.5 dB < -20dBC @ 50W
100kHz – 400 MHz 75 W 51 dB ± 1.5 dB < -20dBC @ 50W
100kHz – 250 MHz 25 W 46 dB ± 1.5 dB < -20dBC @ 20W
Input impedance 50 Ω, VSWR < 1.5:1
Output impedance 50 Ω, VSWR < 1.5:1
EUT-fail input CIT-10
Input resistance 2.2 kΩ
Level TTL/CMOS compatible, optical decoupled
EUT-Monitor input CIT-10
Input voltage 0-10 V
Input impedance 100 kΩ
Amplifier monitor CIT-10
Output BNC, 50 Ω
Level  -40 dB (amplifier output), ±3 dB
Interface CIT-10
USB-A Multimeter (for EUT control)
USB-A Relay switching unit
USB-B Connection to computer
General data CIT-10
Temperature range 0 to 40 °C
Warm-up time 15 min.
Housing 19”-Subrack or desktop case
Dimension (W x H x D) 449 mm x 133 mm x 435.5 mm
AC input 100 – 240 VAC; 50/60 Hz
Volume of delivery CIT-10 (basic equipment),
cabling, system software
Part Number CIT-10/25 with integrated
25 W RF-power amplifier
Part Number CIT-10/75 with integrated
75 W RF-power amplifier
Part Number CIT-10/75MIL with integrated
75 W RF-power amplifier
Part Number CIT-10/W without
internal RF-power amplifier

Features

Internal RF-Power Amplifier
Several amplifier modules are available. Highest output power can be 75 W over the specified frequency range. The amplifier input can be accessed via the back panel of the CIT-10, so that the amplifier can also be used with any external generator. 25 W and 75 W amplifiers are available as standard.

Amplitude Modulation
Frequencies generated by the generator can also be modulated with a LF signal. Modulation frequencies may vary from 1 Hz up to 100 kHz, modulation levels are available from 0 % to 100 %.

BCI-Tests with additional RF-Power Meter
Frequencies generated by the generator can also be modulated with a LF signal. Modulation frequencies may vary from 1 Hz up to 100 kHz, modulation levels are available from 0 % to 100 %.

Internal RF-Voltmeter
Accurate measurements of RF signals from -40 dBm up to +30 dBm are done by the internal RF-voltmeter which can be accessed (for separate use) via a BNC connector. Two internal voltmeters measure the forward and reverse power on an optional available directional coupler. If no directional coupler is installed, the output voltage of the amplifier is measured.

Internal RF-Signal Generator
As the internal generator generates its output signal without any internal mixing components, low harmonics and spurious frequencies are assured.

User defined signals
External signals (e.g. EUT-fail or external instruments) can be connected and monitored using the application software.

Setup

The CIT-10 is a PC-controlled test equipment. It can be operated by any commercial IBM compatible PC (Microsoft® Windows software) via USB port. All settings of the equipment, e.g. start frequency, stop frequency,
step width, test voltage etc. are made by means of the control software which is also included in the delivery. The three functional units RF-signal generator, RF-power amplifier and RF-voltmeter are set automatically by the software, depending on the pre-set test parameters. Each component, however, may also be called and operated as separate measuring and testing equipment. This means: using the CIT-10 as testing system, you have three full, additional “single units” at your disposal, for which separate inputs and outputs are available as BNC connections. Due to the computer-aided control of the CIT-10, any modifications which may become necessary, for example, due to the revision of standards, may be performed without problems and without having to manipulate the hardware of the equipment.

Calibration (1)

In <CDN-Calibration> the CDNs (Coupling/Decoupling Networks) serve to inject the test voltage into the lines to be tested and/or to decouple any connected peripheral equipment from the EUT. The characteristics of the CDNs as well as of the power amplifier are not absolutely linear over the whole frequency range, i.e. the amount of power required to generate a constant test voltage over the whole frequency range varies slightly, depending on the frequency. In the calibration run, the frequency-dependent output level of the signal generator, which is necessary for a constant test voltage, will be determined and stored in the software, together with the defined frequency range and the desired test voltage. The data records thus created may then be stored and recalled for tests.

When selecting <Self-calibration>, the test equipment will perform a self-calibration. In this case, the output of the signal generator must be connected to the input of the voltmeter.

Functioning

The equipment is ready for operation immediately after connection with the USB port and installation of the drivers and the control software. After starting the control software, the main menu offers the manual control of <RF-Generator> and <RF-Power Meter>. Further options in the menu are <Calibration> (1) (<CDN-Calibration>, <Self-Calibration>) and <Test> (2) (<Complete Test>, <Selective Test>).

Test (2)

The menu option <Test> offers the selection possibilities <Complete Test>, <Selective Test> and <Protocol>. The settings for a test, e.g. start and stop frequency, step width and test voltage are made automatically via the calibration file of the selected coupling unit. It is now possible to decide whether the test is to be performed exactly according to these pre-settings, i.e. exactly as in the calibration, or whether modifications of the pre-settings shall be admissible. If the calibration run was performed, for example, for a test voltage of 10 V, and the test is to be performed now with 3 V without having to perform a new calibration run for this purpose, this can be done by selecting menu item <Extrapolation>.

Is a suitable measuring instrument connected to the specified serial port of the CIT-10, EUT can be monitored automatically. Data are shown graphically. During all test routines the amplifier output is monitored in a bar display. This guarantees correct tests. In the case of <Complete Test>, a test is performed over the complete selected frequency range; in this case the test frequency is increased by the control software according to the selected step width and the
entered dwell time. If there is a malfunction of the EUT, the test may be stopped at any time. It is then possible to either increase or reduce the frequency by any number of steps, as well as to switch on and off the modulation and test voltage. Besides, a description of the malfunction occurred may be entered in a comment line which is included in the test record.

<Selective Test> offers the possibility of testing the EUT at discrete frequencies. This can be done either with a fixed test voltage or, optionally, with a ramp function. In case of the ramp function, the start and stop voltage, the step width by which the test voltage is to be increased, as well as the dwell time between the individual steps may be preset by the tester.

The standard <Protocol> consists of the head of the protocol and a diagram which shows the test results. In the head of the protocol the date and time are taken over from the computer; in addition, details like temperature, air humidity, tester, as well as testing set-up and EUT, may be registered. The protocol may be printed directly. It is also possible to edit the protocol individually.

CIT-1000

The CIT-1000 is a further development of the for years available and proven „CIT-10“, with the extended frequency range up to 1200MHz, stand-alone-operation via integrated Touch-Screen-PC as well as integrated directional coupler and power-meter for forward and reverse power measurement.

As usual with our CIT-series, all integrated instruments, like Signalgenerator, RF-Power-Amplifier and the 3-channel-RF Power Meter can be used as „stand-alone-unit“, too.

Hence, the Signal-generator and the RF-power-meter can also be used for radiated immunity tests acc. IEC/EN 61000-4-3. Furthermore an additional external RF-Power-amplifier could be connected to the CIT-1000 for this purpose.

Special Features

Conducted RF immunity tests acc. to IEC/EN 61000-4-6, BCI-tests acc. to ISO 11452-4 and MIL-STD 461

Signalgenerator, RF-Power-Amplifier, 3-channel power-meter and directional coupler combined in one 19“-case.

Stand-alone operation via integrated touch-screen-PC

Frequency-range 10kHz-1200MHz

With integrated amplifier 25W / 75W / 180W

Control-Software included

Temperature-mesuring-input for control and display of the BCI-clamp temperature

Interfaces: USB, LAN, GPIB

Technical specifications

RF-Generator CIT-1000
Two switchable outputs (only one can be used simultaneously) 2 x SMA
Frequency range 9 kHz to 1.2 GHz
Frequency resolution 1 Hz
Output level range 0 to -63 dBm
Output level resolution 0.1 dB
Harmonics < 30 dBc
Spurious < 45 dBc
Amplitude modulation (internal) 0 to 100%, resolution 1%
Amplitude modulation (external) 0 to 100% , max. Amplitude 1V = 100%, BNC jack
Pulse modulation (internal) 5 to 95%, resolution 1%
Pulse modulation (external) DC…1MHz, 3,3/5V CMOS/TTL, BNC jack
LF-Generator (modulation) CIT-1000
Connector BNC jack
Frequency range 1 Hz to 100 kHz
Frequency resolution 0.1 Hz
Signal Sine wave / square wave / triangular
Amplitude 0…1 V
RF-Voltmeter 1 (test level) CIT-1000
Connector BNC jack
Frequency range 9 kHz to 1.2 GHz
Measuring range -40 to +30 dBm
RF-voltmeter 2+3 (forward and reverse power) CIT-1000
Connector 2 x SMA
Frequency range 9 kHz to 1.2 GHz
Measuring range -40 to + 33 dBm + directional coupler typ. 40 dB
EUT-Monitor input CIT-1000
input voltage 0 to 10 V DC
resolution 2.5 mV
Input impedance 100 Ω
EUT-failed input CIT-1000
Input signal 3,3/5V CMOS/TTL level
Detection mode status or edge controlled
Temperature measurement 10 to 100 °C (1039 to 1385 Ω) resolution < 1 °C (PT 1000)
SCPI interfaces CIT-1000
USB 2.0 USB-B
LAN, 100 Mbit RJ45
GPIB (optional) Centronics
Digital I/Os CIT-1000
Out 4 Bit Digital out, 5 V CMOS/TTL
In 4 Bit Digital in, 5 V CMOS/TTL
Interlock CIT-1000
Closes at R < 1 kΩ

Coupling / Decoupling Networks

CDNs

Immunity tests according to IEC/EN require coupling of RF disturbance voltages into any conducting cable of an EUT. Furthermore these disturbances should not be coupled into any further equipment so that a decoupling path to any auxiliary equipment is provided. We offer a wide range of CDNs for different types of interconnected lines which are fully calibrated for the frequency range from 150kHz to 230MHz. The following CDNs are available: M-, AF-, S-, T-, RJ, USB-types. Almost any network can be assambled on customer’s requests. Guidance for selecting the appropriate CDN is given in the following table:

Type Interconnected lines
M1, M2, M3, M4, M5, M2+M3 Unscreened supply (mains)
AF2, AF4, AF5, AF6, AF8 Unscreened nonbalanced lines
S1, S2, S4, S8, S9, S15, S25, S36 Screened lines
T2, T4, T8 Unscreened balanced lines
RJ11, RJ45 Unscreened data lines
RJ11/S, RJ45/S, USB Screened data lines

Calibration:

To calibrate a CDN an adaptor, a fastening angle and 50 Ω / 150 Ω adaptor are required. Fastening angle and 50 Ω / 150 Ω adaptor should be ordered for the first CDN. For each following CDN only the specific adaptor has to be ordered.

Test procedure with Coupling/Decoupling (CDNs) Networks acc. to IEC/EN 61000-4-6:

The EUT shall be placed on an isolating support, 0.1 m above the ground reference plane. For table-top equipment, the ground reference plane may be placed on a table.

On all cables to be tested, coupling and decoupling devices shall be inserted.

The coupling and decoupling devices shall be placed on the ground reference plane, making direct contact with it at about 0.1 – 0.3 m from the EUT.

The cables between the coupling and decoupling devices and the EUT shall be as short as possible and shall never be bundled or wrapped.

The height above the ground reference plane shall be between 30 and 50mm (where possible).

The 6dB attenuator shall be placed to the coupling and decoupling device as near as possible.

The test shall be performed with the test generator connected to each of the CDNs in turn while the other non-exited RF-input ports of the CDNs are terminated by a 50 Ω load resistor.

Set-up for level setting at the EUT-port of coupling and decoupling devices:

1.   The test generator (RF-out) shall be connected to the RF-input port of the coupling device via the 6dB-attenuator.
2.   The EUT port of the coupling device shall be connected in common-mode through the 150 Ω to 50 Ω adaptor to the RF-Voltmeters (calibration).
3.   The AE-port shall be loaded in common-mode with a 150 Ω to 50 Ω adaptor, terminated with 50 Ω.

With direct injection to screened cable (CDN S-types), the 150 Ω load at the AE-port is not required as the screen will be connected to the ground reference plane at the AE-port side.

Although the 150 Ω load at the AE-port is mandatory with CDN T-, AF- and M-types calibration data are identical with the AE-port open or short. This is because a capacitor is connected to ground at the AEport side, which leads to a RF-short-circuit similar to the CDN S-types. This means that even with CDN M-, AF- and T-types the 150 Ω load at the AE-port is not required.

Coupling Clamp

EMCL 20 / 35

According to IEC/EN 61000-4-6 the preferred coupling and decoupling devices are the CDNs, for reasons of test reproducibility and protection of the AE. However, if they are not suitable or available, clamp injection should be used.

Often, clamp injection needs to be applied to multi-pair balanced cables because suitable CDNs might not be available.

The EM clamp establishes both capacitive and inductive coupling to the cable connected to the EUT.

The EM clamp (in contrast to the conventional current injection clamp) has a directivity ≥10 dB, above 10 MHz, so that a defined impedance between the common-mode point of the AE and the ground reference plane is no longer required. Above 10 MHz, the behavior of the EM clamp is similar to that of a CDN.

Technical Specifications EMCL-20 EMCL-35
Frequency range 10 kHz-1000MHz 10 kHz-1000MHz
Nominal impedance 50Ω 50Ω
Connector N-type female N-type female
Maximum input level EMCL-20 EMCL-35
0.15 MHz – 100 MHz 100W, 15 min.  100W, 15 min.
100 MHz – 230 MHz 100W, 5 min.  100W, 5 min.
230 MHz – 1000 MHz 50W, 3 min. 50W, 3 min.
Cable diameter <20mm <37
Weight 7 kg 14 kg
Dimension (LxWxD) 655 x 120 x 80 mm 666 x 135 x 120 mm

Features

EM-clamp for immunity testing of cables with up to 20 mm diameter

High coupling factor: less than 15 watts amplifier output power is required to obtain a test level of 10 V

Calibration unit and calibration data are supplied with each instrument

Measured amplifier output power to obtain a rest level of 10 V. 6 dB attenuator and 80% amplitude modulation depth are taken into account.

Calibration unit of EMCL (included as standard)

Bulk Current Injection Probe

BCI Probe

The Bulk Current Injection Probe is used to inject RF-current into cables of electrical equipment to test the susceptibility against radiated electromagnetic energy.

It was designed to meet the specifications of ISO 11452-4:2005 and IEC 61000-4-6 standards for automotive BCI testing with secondary currents of 300 mA and more.

The probe can be easily clamped around test conductors and supports cable harness diameters up to 40 mm diameter.

Features

Meets specifications of ISO 11452-4: 2005 and IEC 61000-4-6

Frequency range from 4 kHz up to 400 MHz

Designed for automotive BCI testing

Low insertion loss with optional matching transformer

Technical Specifications BCI-Probe
Frequency range 4 kHz – 400 MHz
Input Connector Type N Female
Inner diameter 120 mm
Outer Diameter 40 mm
Width 40 mm
Max. core temperature 90 °C
Turns Ratio 1:1
Primary inductance 5.1 μH @ 100 kHz
Ambient temperature 0 to 40 °C
Fastening 1 Clip
Input Power rating until
core temperature is 90 °C*
90 min @ 70 W (48.45 dBm)
45 min @ 100 W (50 dBm)

*higher input power possible for shorter duration. Control via integrated temperature sensor.

Insertin loss when using the matching transformer MT-1. The selection of the ration in dependence of the frequency can be optimized by automatic software control via LAN or UB-interface.

Bulk Current Monitoring Probe

MP-50

The Current Monitoring probes may be used whenever RF current measurements are required. Current measurements are made by placing a current carrying conductor within the “sensing” window of the probe and measuring the probe’s output voltage with an RF detector. Calibration of the probe permits the conversion of the voltages measured to current. Current measurements can be made over the frequency range shown in the transfer impedance curve furnished with each probe. There is virtually no loading of the circuit and the technique permits normal operation of the device under test during measurements. The MP-50 can be used for the procedure for clamp injection when the common- mode impedance requirements cannot be met given in chapter 7.4 of IEC/EN 61000-4-6 „Immunity to conducted disturbances, induced by radio frequency fields”. The MP-50 can also be used as current monitor for BCI testing as per ISO11452-4, RTCA/DO-160 section 20, MIL-STD-461 and various automotive standards.

Features

As required in IEC/EN 61000-4-6

Suitable for BCI testing per ISO11452-4, RTCA/D0-160 section 20, MIL-STD 461 CS 114 and various automotive standards

Individual calibration data with each probe

Technical Specifications MP-50
Frequency range 10 kHz – 400 MHz
Insertion impedance < 2,5 Ohm
Cable diameter < 46 mm
Signal output BNC socket
Max signal current (10 kHz–400 MHz) 1A
Dimensions Outer diameter 115 mm
Thickness 30mm
Overall length 136mm
Weight 0,55 kg

Immunity to conducted, differential mode disturbances in the frequency range 0Hz to 150 kHz

  • IEC / EN 61000-4-16
  • IEC/EN 61000-4-19
  • IEC/EN 61543

Testing devices:

Power Signal Generator (PSG) & Isolation Transformers (IT-x)

PSG-300

The PSG-300 contains a linear precision power amplifier with a wide bandwidth (DC-300 kHz), suitable for all applications concerning fast alternating signals at high output power. The built in generator provides sine, square and triangle waves. Communication between PSG-300 and PC is via USB connection. The application software is suited for general power generator applications and for immunity tests according to IEC/EN 61000-4-16 as well as to IEC/EN 61543. Short term tests are enabled by phase controlled switching of an external power source (optional). The PSG-300 is equipped with a silent, temperature-controlled fan. Internal safeguards protect the amplifier from overheating and high power dissipation. They also assure protection against short-circuits and overload.

The number one choice for all applications with the need for fast and powerful signals, e. g.:

Simulation of DC / AC supply lines

Control of piezo actors

Generation of magnetic fields with Helmholtz or similar coils

Immunity testing according to IEC/EN 61000-4-16, IEC/EN 61000-4-19 AND IEC/EN 61543

Calibration devices etc.

Features

Short circuit and overload protection

Completely linear and low noise design

Outstanding DC stability

Over temperature switch off

Protection / Ready LED

EUT-fail input

EUT-monitor input

Technical specifications PSG-300 PSG-300A
Amplifier
Power bandwidth DC – 200 kHz
Slew rate 100 V/μs
Offset ±1 mV (±0.1 mV/°C)
Gain 10 ±0.1 % (±0.01 %/°C)
Output voltage 50 Veff / ±75 Vpeak
Output current 5 Aeff / ±7.5 Apeak 16 Aeff / ±23 Apeak
Power output 250 W 800 W
Distortion < 0.10%
Input impedance 100 k  Ω
Max. input voltage 80 V (cont.), 100 V (< 1 min)
Noise (10 Hz – 1 MHz, input: 50 ohm) 0.5 mVeff
Output connector 4 mm MC
Output connector 50 ohm BNC
Generator
Frequency range DC, 0.05 Hz – 300 kHz
Frequency resolution 0.05 Hz
Frequency accuracy ± 20 ppm
Waveform Sine, square, triangle
External generator input BNC
 General data
Remote control USB connector
Dimension (LxWxD) 448,9×132.55×435.50mm 448.90 x 177 x 585.50 mm
Weight approx. 14 kg approx. 30 kg
Technical specifications PSG-300 PSG-300A
Options
PSG-E300 External power source for short term test 300V@DC, 162/3Hz, 50Hz, 60Hz
PSG-EXT Input connector for phase controlled switching of external power source
IT-6/-16/-20

Disturbances shall not be coupled into any support instruments. This requires decoupling of the lines. In many cases isolation transformers are used for decoupling. We offer a wide range from 6A/1-phase to 20A/3.phase. All isolation transformers are compliant to IEC/EN 61000-4-16.

Technical specifications IT-6 IT-16 IT-20
Voltage 230 V 230 V 230 V
Current 6 A 16 A 20 A
Phase 1-phase 1-phase 1-phase
Dimensions (W x D x H) 330x230x111 mm 400x310x181 mm 400x310x181 mm
Weight 18 kg 34 kg 45 kg

Coupling / Decoupling Networks

CDNs

Immunity tests according to IEC/EN require coupling of RF disturbance voltages into any conducting cable of an EUT. Furthermore these disturbances should not be coupled into any further equipment so that a decoupling path to any auxiliary equipment is provided. We offer a wide range of CDNs for different types of interconnected lines which are fully calibrated for the frequency range from 150kHz to 230MHz. The following CDNs are available: M-, AF-, S-, T-, RJ, USB-types. Almost any network can be assambled on customer’s requests. Guidance for selecting the appropriate CDN is given in the following table:

Type Interconnected lines
M1, M2, M3, M4, M5, M2+M3 Unscreened supply (mains)
AF2, AF4, AF5, AF6, AF8 Unscreened nonbalanced lines
S1, S2, S4, S8, S9, S15, S25, S36 Screened lines
T2, T4, T8 Unscreened balanced lines
RJ11, RJ45 Unscreened data lines
RJ11/S, RJ45/S, USB Screened data lines

Calibration:

To calibrate a CDN an adaptor, a fastening angle and 50 Ω / 150 Ω adaptor are required. Fastening angle and 50 Ω / 150 Ω adaptor should be ordered for the first CDN. For each following CDN only the specific adaptor has to be ordered.

Test procedure with Coupling/Decoupling (CDNs) Networks acc. to IEC/EN 61000-4-6:

The EUT shall be placed on an isolating support, 0.1 m above the ground reference plane. For table-top equipment, the ground reference plane may be placed on a table.

On all cables to be tested, coupling and decoupling devices shall be inserted.

The coupling and decoupling devices shall be placed on the ground reference plane, making direct contact with it at about 0.1 – 0.3 m from the EUT.

The cables between the coupling and decoupling devices and the EUT shall be as short as possible and shall never be bundled or wrapped.

The height above the ground reference plane shall be between 30 and 50mm (where possible).

The 6dB attenuator shall be placed to the coupling and decoupling device as near as possible.

The test shall be performed with the test generator connected to each of the CDNs in turn while the other non-exited RF-input ports of the CDNs are terminated by a 50 Ω load resistor.

Set-up for level setting at the EUT-port of coupling and decoupling devices:

1.   The test generator (RF-out) shall be connected to the RF-input port of the coupling device via the 6dB-attenuator.
2.   The EUT port of the coupling device shall be connected in common-mode through the 150 Ω to 50 Ω adaptor to the RF-Voltmeters (calibration).
3.   The AE-port shall be loaded in common-mode with a 150 Ω to 50 Ω adaptor, terminated with 50 Ω.

With direct injection to screened cable (CDN S-types), the 150 Ω load at the AE-port is not required as the screen will be connected to the ground reference plane at the AE-port side.

Although the 150 Ω load at the AE-port is mandatory with CDN T-, AF- and M-types calibration data are identical with the AE-port open or short. This is because a capacitor is connected to ground at the AEport side, which leads to a RF-short-circuit similar to the CDN S-types. This means that even with CDN M-, AF- and T-types the 150 Ω load at the AE-port is not required.

Universal Coupling Network

M2345/32-16

As described in IEC/EN 61000-4-16 at the frequency of the electrical power supply (either DC, 16 2/3 Hz, 50 Hz or 60 Hz) the test stimuli are applied as both continuous and short-duration disturbances. Otherwise, over the frequency range 15 Hz to 150 kHz, the test stimuli are applied as continuous disturbances only. The normal duration for short duration disturbances at the electricity supply frequency is one second. The M2345/32-16 is a multifunctional coupling network for test levels up to ±300 V in connection with test generators MTS-800, PSG-300 and PSG-E300. In this case the M2345/32-16 is remote controlled via the application software of the test generators. Otherwise the coupling network may be front panel operated as a stand-alone device. The M2345/32-16 operates as a M2, M3, M4 or M5 coupling network. The selection can be made by a rotary switch. The coupling capacitor is shorted out for the DC tests by a push-button. For automated test you may toggle between AC and DC tests via the USB-port.

Features

Switchable coupling network M2, M3, M4, M5 acc. IEC/EN 61000-4-16

Current rating up to 125A

For continuous and short term tests up to ± 300 V

Remote control in connection with MTS-800, PSG-300 and PSG-E300

May be used as stand-alone device

EUT 250V AC or DC

Power Signal Generator (PSG) & Isolation Transformers (IT-x)

MIL-STD 461, CS 101, CS 109

Test device:

Magnetic-Field / Low-Frequency Test System

MTS-800

The MTS-800 is a compact test system for broadband generation and measurement of magnetic fields. Its internal components allow automatic EMC tests according to automotive standards where high field strength need to be generated or measured.

In combination with our triaxial Helmholtz coils full automated susceptibility tests are possible at magnetic field strength up to 1000 A/m for frequencies from DC to 1 kHz. Lower field strength can be generated for frequencies up to 250 kHz. Due to the triaxial setup of our Helmholtz coil major improvement in device handling is achieved because there is no need to turn an EUT during tests.

Tests and measurements are controlled by a program which will set most parameter automatically. For any relevant standard, which are fulfilled by the MTS-800, limit values are already included into the software package, although any different value can be defined by a user. After every test full reports will be created automatically. Report layout is pre-defined, though any user-defined layout is possible. High performance is guaranteed by a self-calibration

Special Features

Frequency range for emission and immunity measurements: DC–250kHz

800W precision power amplifier, signal generator and spectrum analyzer in one compact unit

All instruments may as well be used as stand-alone devices

Powerful but easy to operate software, fully expandable for future standards modifications

Standard software allows easy operation, report generation and integration of external measuring instrument for EUT monitoring

Prepared for connection of external multimeter for EUT control

Fully automated tests with triaxial Helmholtz coil. Software controlled generation of magnetic field in x-, y- and z- direction; no need to turn the EUT!

Large variety of extensive accessories available

The MTS-800 complies to all magnetic field requirements of relevant EMC and military standards

Options

Common mode test adapter for balanced signal and control connections according to IEC/EN 55103-3

Calibration network for common mode test adapter according to IEC/EN 55103-2

Current transducer for balanced video connections according to IEC/EN 55103-2

Enclosed variable transformer for short term field according to IEC/EN 61000-4-8; prim. 230 V, sec. 0 to 230 V, max. current 20 A; incl. supply cable

Applications

Magnetic Field Generation
MTS-800 enables a user to generate strong magnetic fields up to 1000 A/m. Even alternating fields up to 250 kHz can be generated by the magnetic test system.

Low Frequency emission and immunity tests
acc. to MIL-STD 461, CE 101, RE 101, CS 101, CS 109 and RS 101. Individual software modules and hardware accessories are available for each of these tests.

Automotive Testing
Intensive testing is required for new products which should be used in any automotive application. The MTS-800 allows fast and easy testing according to many automotive standards as described before.

Technical specifications

Voltage input (Analyzer) MTS-800
Frequency range DC – 250 kHz
Input impedance 1 MΩ / 50 Ω switchable
Connector XLR, unbalanced
Max. input voltage 100 V continuous (attenuator autoset at overvoltage); 10 V at 50 Ω
Gain -20/0/20 dB Preamplifier, 0/20/40 bB ADC Amplifier; Self-calibration with ultra stable on-board reference
Current input MTS-800
Frequency range DC – 250 kHz
Shunts 10 mΩ / 1 Ω / 100 Ω
Max. input current 20 A continuous (overload protection);
1 Ω and 100 Ω shunt are protected by an additional 1.5 A fuse
Connector 4 mm safety jack (+, -) measurement via insulation amplifier or input jacks
Measurement range 20 A, 10 A, 1 A, 100 mA, 10 mA, 1 mA automatic offset and gain; Self-calibration with ultra stable on-board reference
AD converter MTS-800
Resolution 16 Bit
Sampling rate 1.25 MSPS
Aliasingfilter 0.01 dB Tschebyscheff filter, fg = 260 kHz; filter may be switched off
Generator MTS-800
Frequency range DC – 250 kHz
Output impedance 50 Ω
Connector BNC, unbalanced
Signal Sine wave / triangular / square wave / DC
Amplitude 0 to 10 VAC, -10 V to +10 VDC
Resolution 12 Bit (2.5 mV), Switchable – 20 dB Attenuator; Self-calibration with ultra stable on-board reference
Amplifier MTS-800
Frequency range DC – 1 MHz
Connector 4 mm safety jacks (output); BNC, unbalanced (input)
Current 16 Arms
Voltage 50 Vrms / 75 VDC
Distortion (DC-100 kHz, load ≥ 4 Ω) < 0.10 %
General data MTS-800
EUT control / Connector 9-pin Sub-D; RS232
Connection to Computer USB
Temperature range 0 to 40 °C
Warm-up time 15 min.
Housing 19”-Subrack or desktop case
Dimensions (WxHxD) 449 x 177 x 580 mm
Weight (shipping) approx. 40 kg (net 34 kg)
Gain 10 ±0.1% (±0.01% / °C)

Features

Automatic Testing Capabilities
Full compliance with several immunity test as ISO 11452-8, MIL-STD-461 RS101, CS101, CS109, IEC/EN 55103-2, IEC/EN 61000-4-8, SAE J1113-2, SAE J1113-22, Ford ES-XW7T-1A278-AC, GM W3097, PSA B21 7110, Renault 36-00-808, DC-11224, DC 10614 and similar standards. Furthermore the MTS-800 allows emission measurements according to MILSTD- 461E/F RE101, CE101 and IEC/EN 55103-1.

Software
Any function is controlled via a software which also guide the user through any test or measurement. Adaptation of signal strength or measurement graphs are possible at any stage. User defined signals complement the usage for fast and reliable tests. The software is written in LabVIEW which guarantees stable and fast performance on any Microsoft® Windows platform.

Components
MTS-800 consists of 3 independent modules: a signal generator (DC – 250 kHz), a power amplifier (800 W output maximum, DC –1MHz bandwidth) and spectrum analyzer (16 Bit, 1 MSPS sampling rate). All modules can be used as stand-alone units.

Self-calibration
Using an ultra-stable voltage source self-calibration correction values are stored in an internal EEPROM. Any voltage signal or voltage measurement device is calibrated at a self-calibration process automatically in about a minute.

Accessories
Frankonia provides also many different coils and loop sensor which are ideally suited for the described tests. Any additional equipment is ready to use without a need for recalibration. Not only our own equipment can be used with the MTS-800, but also user defined coils. A calibration mode is included in the software to complement the magnetic test system with any further equipment.

Further features and possibilities

Susceptibility tests with fixed frequencies and test levels or use the ramp function to sweep from start to stop level. Verify the generated field of any radiating coil with loop sensor.

Short term generation window for short term magnetic field tests (optional).

Scope mode window.

Determine the coil factor of an unknown coil

Self calibration of the MTS-800

Helmholtz Coils
Several Helmholtz coils are available for susceptibility tests. We also offer tri-axial Helmholtz coils which are suitable for MTS-800. To achieve 1000 A/m at 1 kHz, it is absolute necessary to use our Helmholtz coils and an optional compensation board.

Coil Type Technical specifications
HCST_50/28_TAP (1) Tapped triaxial Helmholtz coil for immunity tests
HCS_50/28_TAP (2) Tapped single axis Helmholtz coil for immunity tests
Max. current Designed for the generation of magnetic fields with field strength > 1000 A/m
HCS_125/75_TAP Tapped single axis Helmholtz coil for immunity tests according to IEC / EN 55103

Loop Sensors / Radiating Loops
For immunity tests we offer radiating loops which are necessary to generate magnetic fields. The required loop sensors for measuring emission can also be ordered.

Coil Type Technical specifications
RL_120 (3) 120 mm radiating loop according to MIL-STD-461
LS_040 (4) Electrostatically shielded loop sensor according to MIL-STD-461
LS_133 Electrostatically shielded loop sensor according to MIL-STD-461
RS_133 Electrostatically shielded loop sensor according to IEC/EN 55103-1/2
Can be used as radiating loop and loop sensor.

Coupling Transformer
MIL-STD-461 CS 101 requires a coupling transformer for conducted susceptibility tests. Frankonia has developed a coupling transformer which meets all requirements. Due to direct coupling to voltage mains, the coupling transormer has an additional differential amplifier for common mode rejection of the AC mains. Using the coupling transformer without this amplifier can destroy any measurement instrument due to overvoltage.

Testing equipment acc. to IEC/EN 55103-2
IEN/EN 55103-2 requires certain immunity tests for frequencies from 50 Hz to 10 KHz. The following test equipment fulfills all requirements according to IEC/EN 55103-2, annex B.

Control Panel

The software starts with the generator/amplifier control panel. This window allows basic settings of generator and amplifier.

Standard generation window

Open the Magnetic field generation window for susceptibility tests according to predefined standards.

Magnetic field continuous generation window

Open the continuous generation window for long term magnetic field test.

Example standard file

Edit a predefined standard or create a new one. Load, save and print data.

Measurement results

Open the Magnetic field measurement window for spectrum analyzer measurements. Perform a single or continuous measurement. Perform test according to predefined standards.

Current transducer incl.  correction network

Calibration network

Common mode test adapter

Accessories selecting table

Test equipment MIL-STD 461 Recommended Model CE101 CS101 CS109 RE101 RS101
Measurement receiver MTS-800
Current probe Any commercially available model
Signal generator MTS-800
Power amplifier MTS-800
Data recording device MTS-800
Oscilloscope MTS-800
Coupling transformer CT_2.5/50 AC •                        •
Isolation transformer IT-6/-16/-20/-20/3P
LISNs Any commercially available model •                        •                                                 •                        •
Radiating loop 12cm RL_120
Loop sensor 4cm LS_040
Loop sensor 13.3cm LS_133
Ohmmeter Any commercially available model

Standards

CE101 Conducted Emission, Power Leads, 30 Hz to 10 kHz
CS101 Conducted Susceptibility, Power Lead, 30 Hz to 150 kHz
CS109 Conducted Susceptibility, Structure Current, 60 Hz to 100 kHz
RE101 Radiated Emission, Magnetic Field, 30 Hz to 100 kHz
RS101 Radiated Susceptibility, Magnetic Field, 30 Hz to 100 kHz
Menu

Copyrighted Image