The automotive industry has very specific and permanently changing requirements for EMC testing with pulses and waveforms getting more and more complex. As the leading manufacturer of automotive test equipment and member of various national and international standard working groups EM TEST knows the present and the future demands of the car industry. The automotive test equipment listed below are well designed to meet the EMC testing requirements of the automotive industry - today and tomorrow:

Application

Ultra-Compact Simulator for Automotive Transients for Pulses 1, 2 and 3a/3b

The UCS 200N Ultra-Compact Simulator for Automotive Transients unifies the capabilites of an EFT/Burst simualtor, a Micropulse simulator and the required coupling network into one box. The UCS 200N is equiped to meet all international and car manufacturer specifications from around the globe. The built-in coupling network ranges up to 200A depending on the model. The built-in coupling network can be used and controlled by any unit of the LD 200N series, VDS 200N series and PFS 200N series. For tests beyond standard's requirements the waveform parameters of the Micropulse generator can be varied in a wide range by means of the FreeStyle mode.

Benefits

Smartest Solution for Automotive Transient Testing

Never before an Ultra-Compact Simulator for automotive transient testing like the UCS 200N was available. All international standards and most car manufacturer requirements have been put into one box. All pulses are fully compliant to the specifications. Even more, the waveform parameters for micropulses can be varied in order to test with pulses beyond any standard specification. The UCS 200N is the heart of the redesigned EM TEST Automotive test set-up having the ability to control any external EM TEST Load Dump and Battery Supply simulator. The built-in coupling network for nominal DC currents of up to 200A forms the single-port DUT connection for fully automated tests. The software iso.control with its extensive standards library put this test equipment to the top with almost unlimited test capabilities.

Standards

See the full list of manufacturer specific standards here

Application

AutoWave - A new dimension for battery supply simulation in the automotive area

Battery simulation becomes more and more an issue in today´s automotive testing. Waveforms are getting more and more complex. Standardised single phenomena like cranking are still tested but real-life signals are of even higher interest for testing full vehicles or parts of it under real conditions. Common arbitrary generators often fail in testing these requirements especially if iteration of various test parameters within one test are required. The AutoWave unifies a 4-channel arbitrary generator and a 2-channel transient wave recorder in a small and handy unit. The AutoWave is best of generating and recording any kind of waveform in the automotive area.

Benefits

AutoWave - Easy to use for most complex waveform simulation

Based on a Dual-Processor Technology, with an integrated high-performance PC, a digital signal processor (DSP) and equipped with a hard disk the AutoWave is capable to record and generate waveforms in realtime. Even most complex waveforms with waveform parameters being iterated within a full test cycle or pseudo-randomly selected waveform parameters can be programmed. No matter whether waveforms are programmed from segments or from single points (normally resulting in MBs of data) the AutoWave will do. Recording data of up to 1GByte is easily possible. The input channels are designed for up to +/-100V with 16bit resolution. Long-term measurements for several hours or even days can be performed. Interfaces like GPIB, Ethernet and USB (to connect a memory stick) are standard features. The AutoWave can be used in combination with EM TEST VDS 200Nx models and EM TEST RDS 200N models or any programmable DC source having a DC signal input 5/10VDC.

Standards

See the full list of manufacturer specific standards here

Application

VDS 200N - Battery supply simulator and DC voltage source

The VDS 200N series is used to simulate the various battery supply waveforms recommended by international standards and by car manufacturer requirements. Especially the manufacturer requirements are an important area covered by the VDS 200N series as there is a large variety of requirements. Secondly, the VDS 200N series serve as powerful DC voltage supplies for the DUT during the tests with automotive transients. The VDS 200N series covers all three supply voltage categories. Their current capability ranges up to 200A depending on the model and your application.

Benefits

Best to simulate battery supply waveforms

The VDS 200N is specifically designed to cope with almost every requirement of international and national as well as car manufacturer standards world-wide. Its integrated DC amplifier with a frequency range up to 50kHz allows to generate dips and drops, short interruptions and many kind of voltage variation representing various phenomena being measured on a wiring harness. The VDS 200N30.1 and VDS 200N50.1 models are bipolar amplifiers able to absorb energy fed back from the DUT up to nominal current. The VDS 200N offers the QuickStart with parameters being adjustable during test to evaluate the susceptibility level of a DUT. Pulse 4 and 2b as per ISO 7637-2:2004 and many more car manufacturer specific waveforms are pre-programmed. Together with an external signal generator (e.g. AutoWave) the VDS 200N can generate most complex waveforms.

Standards

See the full list of manufacturer specific standards here

Application

LD 200N - Compact high-energy Load Dump generator

Load Dump pulses simulate the sudden disconnection (e.g. by corrosion) of the battery from the alternator while the alternator is generating current to load the battery. Such Load Dump pulses are high energy pulses with a high potential of destruction. The LD 200N simulates these high energy pulses having a duration time in the range of hundreds of milliseconds. The LD 200N generates the Load Dump pulses as per ISO 7637, SAE J1113, SAE J1455, JASO and many more manufacturer specification, e.g. Ford, Chrysler, Renault, PSA, NISSAN etc. By means of a built-in clipping circuit (optional) the LD 200N also generates clipped load dump pulses as per international standards as well as manufacturer requirements.

Benefits

The LD 200N includes everything necessary to conduct fully compliant tests. It generates the required high-energy pulses as required by ISO 7637-2:2004 and many other international and car manufacturer requirements discharging an energy storage capacitor into a passive pulseforming network. The decay of the waveform follows a double-exponential function as specified in Annex E of ISO 7637-2:2004. The LD 200N is a standalone tester including a 60V/30A DC coupling/decoupling network but still can easily be integrated into a complete test set-up. Pre-programmed Standard Test routines allow highest user convenience. The FreeStyle mode allows the operator to easily generate individual Load Dump pulses setting time parameters and peak voltage as required. The built-in CLD module (optional) enables the LD 200N to generate clipped load dump pulses as per various test requirements by setting time parameters and clipping levels as needed.

Standards

See the full list of manufacturer specific standards here

Application

AMP 200N - Low-frequency signal source for supply simulation and magnetic field testing

The AMP 200N has been designed as a low-frequency signal source to generate sinusoidal signals used to simulate ripple noise and ground shift noise as required by a variety of standards in the automotive industry e.g. as per Ford EMC-CS-2009.1, CI 210 and CI 250 as well as RI 150. The AMP 200N is controlled by the EM TEST Autowave to also allow the generation of non-sinusoidal and customised signals. Additionally, the AMP 200N can be used to generate magnetic fields by means of a radiation loop or small Helmholtz coils as per RI 140 of Ford EMC-CS-2009.1.

Benefits

AMP 200N - Signal generator/amplifier solution for ripple noise and magnetic field testing

The AMP 200N unifies a low-frequency signal generator and a powerful amplifier module giving a maximum amplitude of 150V peak-to-peak as required e.g. by Ford EMC-CS-2009.1. It generates both sinusoidal and transient signals. Equipped with a DDS it generates any sinusoidal signal with a frequency up to 250kHz. The AMP 200N is controlled by the EM TEST AutoWave in order to generate any sinusoidal or non-sinusoidal/transient signals and is therefore fully supported by the autowave.control software with its exhaustive library of pre-programmed standards and its outstanding reporting and documentation capabilities.

The AMP 200N can also be used for magnetic field testing using a Radiation Loop and Loop Sensor. Extended by the optional measuring module the AMP 200N offers means for frequency-selective current measurement, voltage measurement and measurement of the magnetic field strength.

Standards

See the full list of manufacturer specific standards here

Application

CN 200N - Single-box transformer assembly for LF conducted immunity testing

The CN 200N is a standalone coupler unifying two audio transformers, individually configurable for various test requirements, requireing the application of the test signal to the lines under test via an audio transformer.

Benefits

CN 200N - Fully contained coupling device as per Ford EMC-CS-2009.1

The CN 200N is an easy-to-use coupling device consisting of two audio transformers and a 0.5ohm/250watt load resistor configurable as required by Ford EMC-CS-2009.1, Fig. 18-6 for AC ground voltage offset testing. The two transformers need to be connected in series on their primary side, their secondary side is paralleled and loaded by the 0.5ohm non-inductive resistor load.

Standards

Application

PFS 200N - Automotive Power Fail Simulator For Voltage Dips and Interruptions

The PFS 200N Automotive Power Fail simulator is used to comply with standard requirements, mainly from vehicle manufacturers, to perform fast voltage dips ad drops (micro-interruptions). Some standards specify very fast rise and fall times below 1 microsecond an electronic switch.

Benefits

The PFS 200N is a standalone tester providing an electronic switch to perform voltage dips and drops (micro-interruptions) with fast rise and fall times of 1 microsecond. For voltage dips two DC voltage supplies are required while for for voltage drops (micro-interruptions) only one DC voltage supply is needed. The PFS 200N has the ability to control one external DC voltage source by means of an analog DC signal. The PFS 200N can also be easily integrated into a complete test set-up.

Operation is possible both manually and by software via USB or GPIB. Fail inputs allow to control an ongoing test sequence based on the status of the DUT. Pre-programmed Standard Test routines allow highest user convenience. Still the PFS 200N offers the Quick Start test routine where parameters can be changed on-line during a test to evaluate the susceptibility level of an individual DUT.

Standards

See the full list of manufacturer specific standards here

Application

Bulk current injection (BCI) testing

Bulk Current Injection (BCI) is a test procedure to proof the immunity to electrical disturbances by narrowband electromagnetic energy. The test signal is injected by means of a current injection probe physically being a current transformer laid around the wiring harness. Immunity tests are performed varying the level and the frequency of the injected test signal. The BCI test methode is widely known in the automotive industry as well as in the military/aircraft industry to test single components of a complex system.

The CWS 500N2 is designed to be used also for tests with CDNs and EM clamps for tests according to EN/IEC 61000-4-6 and related standards.

Benefits

BCI testing out of one single box - Easy, fast and reliable

The CWS 500N2 is the first compact solution world-wide for testing rf conducted immunity to narrowband radiated electromagnetic energy. Apart from the injection probe and the monitoring probe everything is in the box; controller, signal generator, amplifier, directional coupler and rf power measurement of up to three signals in parallel. A built-in rf switch allows to connect and use any external amplifier to extend the system's capabilities.

Despite of being that compact the CWS 500N2 is a very flexible solution and can be used in the laboratory as well as everywhere in the field. Setting up a test is done very quickly with a minimum effort for cabling of the test equipment. There are only two leads; the rf power lead to the input of the injection probe and the return lead from the monitoring clamp. The user doesn't need to be an expert to run reliable and reproducible tests.

A powerful software tool including extensive reporting features and instrument driving capabilites masters the test procedures. All operation is done by means of icd.control software.

Standards

See the full list of manufacturer specific standards here

Application

CWS 500N3 - Testing of ripple noise and magnetic fields

Key applications of the CWS 500N3 are in the automotive and aerospace area. Various international standards and MIL requirements call for magnetic field tests in the low frequency range. Apart from this the automotive industry requires conducted immunity tests with superposed sinusoidal signals on the DC supply voltage (ripple noise). For both applications the CWS 500N3 is the perfect equipment including everything in a single box, necessary for these tests.

The CWS 500N3 meets requirements of SAE J1113-2, ISO 11452-8, DO 160D/E Section 18 and MIL-STD-461 D/E CS101, CS109 and RS101.

Benefits

Low frequency testing out of one single box - Easy, fast and reliable

The CWS 500N3 is the state-of-the-art solution in a compact single-box design to test the immunity to conducted low-frequency disturbances and low-frequency magnetic fields. The CWS 500N3 includes a LF signal generator and amplifer, a low-frequency transformer 2:1, a frequency- selective voltage/current meter and load resistors as required by the standards. For remote control via icd.control software both a GPIB and USB interface are available. icd.control software supports the test routines, controls external measuring devices and automatically generates a test report including all test data.

Standards

See the full list of manufacturer specific standards here

Application

ESD 30N - Generates ESD pulses above EN/IEC 61000-4-2 test levels

Electrostatic discharges either from a human body to any other part or between two different objects can cause persistent disturbances or even destruction to sensitive electronics or controls.

ESD 30N is an ESD tester to simulate ESD pulses at higher voltages up to 30kV in both air and contact discharge mode. It therefore satisifies requirements exceeding the EN/IEC 61000-4-2 test levels and complies to automotive test applications.

Benefits

Smartest Solution for Automotive Transient Testing

The ESD 30N electrostatic discharge simulator is an easy-to-use tester. It consists of a power supply unit and the discharge gun, operated from the discharge gun. It generates electrostatic discharges up to 30kV in both air and contact discharge mode. The discharge tips can easily be changed. The discharge networks can be easily changed as they are plugged into the discharge gun. The actual discharge network in use is recognised by the controls and indicated in the display.

The ESD 30N is either mains supplied or supplied by a DC source. Even battery powered operation is possible. Battery operation becomes relevant for testing e.g. as per DC-11224 or VW TL 824 66, ESD Operating Test, where the ground of the ESD generator is connected to the Field Coupling Plane and the Horizontal Coupling plane but not directly to the Reference Ground Plane. Additionally, a fiber optic link is offered as an option to communicate with the ESD 30N separating the sensitive computer from the test set-up and to avoid ground loops.

Standards

See the full list of manufacturer specific standards here

Application

RCB 200N1 - Generation of relay switching transients

As per FORD EMC-CS-2009.1 a part of the test pulses is not generated using a transient pulse generator similar to the ones defined as per ISO 7637 but being based on a circuitry including a Potter & Brumfield 12VAC relay and specifically defined components such as inductors, capacitors, resistors and switches with the aim of simulating "real-world transients".

The EM TEST RCB 200N1 transient generator meets the requirements set out by the FORD EMC-CS-2009.1 standard document. It is built using the components outlined in Figure F-1 to generate pulses such as CI 220 A1, A2-1, A2-2, C-1 and C-2, CI 260 F and RI 130 A2-1 and A2-2 for which the RCB 200N1 is built into a metal housing. For RI 130 testing the RCB 200N1 offers BNC-type coaxial outputs to connect the specified test fixture needed for this particular test.

Benefits

Micro-processor controlled RCB 200N1 ensures easy operation

NWhile including 8 different pulses and three different modes to sequence these pulses the operation is as easy it can be. A micro-controller sets the switches based on the selected ID (CI 220, CI 260 and RI 130), pulse (CI 220: A1, A2-1, A2-2, C-1 and C-2, CI 260: F or RI 130: A2-1 and A2-2) and mode (M1, M2 and M3) of application. LEDs are indicating the selected pulse and test mode as well as the status of the relays (SW0 to SW4) as requested by the standard.

The test modes Mode 2 and Mode 3 are defined based on a pseudo-random timing sequence for the application of the pulses. This is automatically done by the built-in micro-controller. Tests can be run in sequences or endlessly.

The Potter & Brumfield relay is required to be replaced after using it for approx. 100hours testing due to degradation of the performance. A built-in counter is active in the background counting the operation time of the relay. The EOL LED indicates the current EOL status.

To meet the requirements for RI 130 testing the RCB 200N1 is built into a metal box with the relay inside still easily accessible for replacement.

To trigger the pulses the unit has means to connect an external trigger source while it will automatically be triggered internally when no external trigger source is connected.

Standards

Application

RCB 200 - Generation of relay switching transients

This RCB 200 relay switch box has been designed by EM TEST to offer a high-quality solution for customers testing according to ES-XW7T-1A278-AC Ford specification.

Three function keys permit to operate the unit, to select the test pulses and test modes.
• TEST allows to start and to stop the test
• PULSE allows to select the pulse
• MODE allows to select the mode for Pulse A1, A2, B1, B2 and C
LEDs indicated the selected pulse and mode.

Benefits

Micro-processor controlled RCB 200 ensures easy operation

With its 6 different pulses and two different modes to sequence these test pulses the RCB 200 is easily operated by only three function keys. A micro-controller automatically sets the circuit required to generate the selected pulse in the predifined mode (fixed mode with specified repetition and duty cycle (pulses A1, A2, B1 and B2) or random (pulse C)).

The RCB 200 can also be used for tests as per CI 260F.

Standards

Application

LD 200S18 - Load Dump generator as per Toyota

Load Dump pulses simulate the sudden disconnection (e.g. by corrosion) of the battery from the alternator while the alternator is generating current to load the battery. Such Load Dump pulses are high energy pulses with a high potential of destruction.

The LD 200S18 generates the Field Decay pulse and the Spark Test pulse as per Toyota specification.

Benefits

The LD 200S18 includes everything necessary to conduct fully compliant tests. It generates the Field Decay pulse as required by Toyota specifications. The Spark Test pulse can be performed with the same test equipment connecting an additonal DC voltage source with -600V to the LD 200S18. An electronic battery switch is built-in for decoupling the transients from the DC voltage source.

The LD 200S18 is a standalone pulse generator including a 60V/25A DC coupling/decoupling network but still it can be integrated easily into a complete test system. Operation is both manual and by software via GPIB or RS232. Fail inputs allow to control an ongoing test sequence based on the status of the DUT. A warning lamp control contact is provided as well as a safety interlock.

Pre-programmed Standard Test routines allow highest user convenience.

Standards

Application

LD 200S19 - Load Dump generator as per Toyota

Load Dump pulses simulate the sudden disconnection (e.g. by corrosion) of the battery from the alternator while the alternator is generating current to load the battery. Such Load Dump pulses are high energy pulses with a high potential of destruction.

The LD 200S19 generates the Load Dump pulses Test 1, Test 2 (Giant Pulse) and Test 3 as per Toyota specification.

Benefits

The LD 200S19 includes everything necessary to conduct fully compliant tests. It generates the pulses Test 1, Test 2 (Giant Pulase) and Test 3 as required by Toyota specifications. For Test 3 pulse generation an additional external DC voltage supply delivering 30V and having a sufficient current capability is required. Any DC supply available can be used.

The LD 200S19 is a standalone pulse generator including a 60V/25A DC coupling/decoupling network but still it can be integrated easily into a complete test system. Operation is both manual and by software via GPIB or RS232. Fail inputs allow to control an ongoing test sequence based on the status of the DUT. A warning lamp control contact is provided as well as a safety interlock.

Pre-programmed Standard Test routines allow highest user convenience.

Standards

Application

MPG 200S20 - Automotive Micropulse Generator

Micropulses occur on the battery supply system when an inductive load is disconnected from the DC supply. These pulses are of a medium energy content having a rise time in the low microsecond range and a duration of several tenth or hundreds/thousands of microseconds. Their polarity depends on whether the inductive load is of a passive (e.g. a heater) or an active type (e.g. a DC motor).

The MPG 200S20 has a built-in battery switch to interrupt the DC supply voltage as required by the standards. It is designed to generate pulses 1b and 6 as per GOST standard 28751-90 as well as pulse 6 as per ISO 7637-1:1990.

Benefits

MPG 200S20 - Standalone Micropulse Generator with built-in Battery Switch

The MPG 200S20 includes everything necessary to conduct fully compliant tests. The built-in electronic battery switch enables interruption of the DC supply voltage as required by the standards. The MPG 200S20 is a standalone tester including a 60V/25A DC coupling/decoupling network but still it can be integrated easily into a complete test system.

Operation is both manual and by software via GPIB or RS232. Fail inputs allow to control an ongoing test sequence based on the status of the DUT. A warning lamp control contact and a safety interlock is provided.

Pre-programmed Standard Test routines allow highest user convenience. Still the MPG 200S20 offers the Quick Start test routine where parameters can be changed on-line during the test to evaluate the susceptibility level of an individual DUT.

Standards

Application

MPG 200S5 - Automotive Micropulse Generator

Micropulses occur on the battery supply system when an inductive load is disconnected from the DC supply. These pulses are of a medium energy content having a rise time in the low microsecond range and a duration of several tenth or hundreds/thousands of microseconds. Their polarity depends on whether the inductive load is of a passive (e.g. a heater) or an active type (e.g. a DC motor).

The MPG 200S5 has a built-in battery switch to interrupt the DC supply voltage as required by the standards and is specifically designed to generate pulses up to 1,100V.

Benefits

MPG 200S20 - Standalone Micropulse Generator with built-in Battery Switch

The MPG 200S5 includes everything necessary to conduct fully compliant tests up to 1,100V. The bult-in electronic battery switch allows interruption of the DC supply voltage as required by the standards. The MPG 200S5 is a standalone tester including a 60V/25A DC coupling/decoupling network but still it can be integrated easily into a complete test system.

Operation is both manual and by software via GPIB or RS232. Fail inputs allow to control an ongoing test sequence based on the status of the DUT. A warning lamp control contact and a safety interlock is provided.

Pre-programmed Standard Test routines allow highest user convenience. Still the MPG 200S5 offers the Quick Start test routine where parameters can be changed on-line during the test to evaluate the susceptibility level of an individual DUT.

Standards

Application

Automotive test pulse verification under loaded conditions

In accordance with the pulse verification requirements given in Annex D of ISO 7637-2:2004 test pulses generated by automotive transient generators need to be verified both under no-load (open circuit verification) and loaded conditions with specified loads. The values of the load resistors is specified and are equal to the generator's internal source impedance defined for the corresponding test pulse.

In accordance with the pulse verification requirements given in Annex D of ISO 7637-2:2004 test pulses generated by automotive transient generators need to be verified both under no-load (open circuit verification) and loaded conditions with specified loads. The values of the load resistors is specified and are equal to the generator's internal source impedance defined for the corresponding test pulse.

Benefits

Selection of load resistors

The set of load resistors has been well selected in order to meet the wide range of source resistors specified in various national/international standards and vehicle manufacturer specifications.

The following load resistors are most used:
• 0.5 Ohm for Load Dump pulse verification as per a number of manufacturer specifications
• 1.0 Ohm for Load Dump pulse verification as per a number of manufacturer specifications
• 2.0 Ohm for verification of pulse 2a and pulse 5 as per ISO 7637-2 and various manufacturer specifications
• 4.0 Ohm for verification of pulses 1, 2 and Load Dump pulse 5 as per various manufacturer specifications
• 10.0 Ohm for verification of pulses 1 and 2 as per ISO 7637-2 and various manufacturer specifications
• 20.0 Ohm for verification of pulse 1 as per ISO 7637-2 and various manufacturer specifications.

All load resistors are non-inductive and have a tolerance better than 1% as per standard requirements. They show sufficient power dissipation for the transient pulse energy.

Standards

Application

CA BS 200N - Load Impedance for BS200N Electronic Switch

The switching behaviour of the BS 200N semiconductor switch shall be verified on 0.6ohm to 50uH load inpedance.

The CA BS 200N is directly connected to the output of the BS 200N. The switching parameters of the BS 200N are measured with the load connected.

Additionally, the CA BS 200N includes a number of shunt resistors Rs such as 10ohm, 20ohm, 40ohm and 120ohm being required as per standards used during the emission measurement of transients as per ISO 7637-2:2004.

Verification Setup

Verification of the BS 200N switching characteristic

As per standard ISO 7637-2:2004 the electronic switch (e.g. BS 200N) is requested to meet a rise/fall time specification of 300ns +/-20% in to a defined load of 0.6ohm in series with 50uH.

The CA BS 200N is set up in direct proximity to the BS 200N with short leads to verify the switching time characteristic. An oscilloscope of sufficient bandwidth is required to properly evaluate the rise/fall time parameters.

Wiring set-up

Set-up of CA BS 200N for verification

In order to properly verify the rise/fall time characteristic of the electronic switch (e.g. BS 200N) it is important to maintain the connection leads as short as possible. EM TEST recommend a maximum length of the connection leads between the CA BS 200N verification load (unit on the left side in the below picture) and the BS 200N electronic switch (right side unit in the below picture) of 0.5m.

Standards