EMTEST Esd NX30 Manuale utente

Instruction

Manual

esd NX30

esd NX30.1

ESD Simulator

Electrostatic discharges either from a human body to any other

part or between two different objects can cause persistent dis-

turbances or even destruction to sensitive electronics or con-

trols. esd NX30 is an ESD tester to simulate ESD pulses at

higher voltages up to 30 kV in both air and contact discharge

mode. It therefore satisfiers requirements exceeding the

EN/IEC 61000-4-2 test levels and complies to automotive test

applications.

•IEC 61000-4-2

•EN 61000-4-2

•ISO 10605

Version:

1.00.8 / 4.18.2019

The benchmark for emc

Replaces:

1.00.7 / 4.12.2019

Filename:

UserManual-esdNX30-E-V1.00.8.doc

Print date:

18.04.19

Instruction Manual V 1.00.7 2 / 33 
 
 
 
Table of Contents 
 
ESD Simulator....................................................................................................................................1 
Table of Contents...............................................................................................................................2 
1EXPLANATION OF THE SYMBOLS USED IN THIS MANUAL...............................................4 
2SAFETY...................................................................................................................................5 
3INTRODUCTION......................................................................................................................6 
1 Electrostatic discharge (ESD).....................................................................................................................6 
2 Simulation ...................................................................................................................................................6 
3 Effects on the EUT......................................................................................................................................7 
4THE esd NX30 SYSTEM..........................................................................................................8 
1 The simulator ..............................................................................................................................................8 
1.1 Function modules........................................................................................................................................9 
1.2 Block diagram.............................................................................................................................................9 
1.3 Operating elements...................................................................................................................................10 
2 System components .................................................................................................................................10 
2.1 Battery charger / power supply unit ..........................................................................................................11 
2.2 Options......................................................................................................................................................11 
2.3 R/C Discharge Networks...........................................................................................................................11 
2.4 Remote triggering (esd NX30 only) ..........................................................................................................12 
2.5 Interlock (esd NX30 only) .........................................................................................................................13 
5COMMISSIONING..................................................................................................................15 
1 Function test .............................................................................................................................................15 
6OPERATION..........................................................................................................................16 
1 Switching on..............................................................................................................................................16 
2 Battery monitoring (esd NX30 only)..........................................................................................................16 
3 Operation and settings..............................................................................................................................16 
3.1 Display mode............................................................................................................................................17 
3.2 Voltage......................................................................................................................................................17 
3.3 Polarity......................................................................................................................................................17 
3.4 Counter .....................................................................................................................................................18 
3.5 Repetition..................................................................................................................................................19 
3.6 Discharge Network....................................................................................................................................19 
3.7 DUT Discharge Mode ...............................................................................................................................19 
3.8 Settings.....................................................................................................................................................21 
3.9 Program ....................................................................................................................................................21 
3.10 Activity Log................................................................................................................................................21 
3.11 Language..................................................................................................................................................21 
3.12 Device info ................................................................................................................................................21 
3.13 Threshold..................................................................................................................................................23 
3.14 Display Settings........................................................................................................................................23 
3.15 ISO-Selftest...............................................................................................................................................23 
3.16 Continuous operation................................................................................................................................24 
4 The Home Screen.....................................................................................................................................24 
4.1 Quick Start................................................................................................................................................24 
4.2 Standards..................................................................................................................................................24 
4.3 Test Levels................................................................................................................................................24 
4.4 Test Routines............................................................................................................................................25 
7TEST PROCEDURES............................................................................................................26 
1 Standard-compliant procedures................................................................................................................26 
2 Other situations.........................................................................................................................................26 
8TYPICAL PULSE DATA ........................................................................................................28 
9MAINTENANCE.....................................................................................................................29 
1 Calibration.................................................................................................................................................29 

EM Test esd NX30

Instruction Manual V 1.00.7 3 / 33

9.2 Exchanging the R/C network ....................................................................................................................29

9.2.1 Reduction of the pulse repetition rate through higher capacitance ..........................................................29

9.3 Repairs......................................................................................................................................................29

9.4 esd NX30 system error messages............................................................................................................30

9.5 Disposal ....................................................................................................................................................30

10 TECHNICAL SPECIFICATIONS............................................................................................32

11 CE-certificate of compliance.....................................................................................................................33

Low Voltage Directive 2014/35/EU....................................................................................................33

EM Test esd NX30

Instruction Manual V 1.00.7 4 / 33

1 EXPLANATION OF THE SYMBOLS USED IN THIS MANUAL

Please take note of the following explanations of the symbols used in order to achieve the optimum benefit from this manual

and to ensure safety during operation of the equipment.

The following symbol draws your attention to a circumstance where non-observation of the warning could lead to inconven-

ience or impairment in the performance.

Example:

ATTENTION

This connection must not be confused with the main power input.

The following symbol draws your attention to a circumstance where nonobservation of the warning could lead to component

damage or danger to the operating personnel.

Example:

WARNING

Never connect or disconnect the pistol while system is performing a test.

Symbols used on the product:

EM Test esd NX30

Instruction Manual V 1.00.7 5 / 33

2 SAFETY

WARNING

This item of equipment, together with its accessories, works at high voltages of up to 30 kV. Any careless

handling or non-observance of the operating instructions may result in dangerous consequences.

The esd NX30 simulator is not a toy! It is a professional tool and belongs only in the hands of specialists and appropriately

trained personnel.

When powered by its own batteries the generator can be active even without any power cable being connected.

The instrument must not be switched on unless a correctly connected earth or earth cable (pulse current return path) is in

place. The original earth cable supplied with the instrument is to be used. Any replacement cables must be fabricated in

such a way that they cannot be accidentally connected to a mains outlet socket. Do not touch the discharge tip! There is a

danger of an unpleasant electric shock if the instrument is switched on (LCD display active).

ATTENTION

Only trained personnel may operate the instrument.

WARNING

Personnel fitted with a heart-pacemaker must not operate the instrument nor approach the test rig while it is

in operation.

These operating instructions form an integral part of the instrument and must be available to the operating personnel at all

times. The instrument must not be used for any purpose other than testing the ESD immunity of electronic equipment.

The construction of the simulator is not designed for use in an explosive environment.

WARNING

Each electrostatic discharge produces powerful electromagnetic interference. Nearby electronic equipment

can be seriously disrupted unless the appropriate counter-measures are taken. Perform ESD tests preferably

in a shielded room.

ATTENTION

If a network needs to be exchanged, the test has to be stopped first, followed by a waiting time of at least 5 s

to ensure the voltage being internally discharged.

The rechargeable batteries in the base station (esd NX30 only) must not be short-circuited under any circumstances. They

must only be recharged with the original charging unit supplied with the generator. Should they have to be replaced, kindly

observe the relevant recommendations for their correct disposal.

The instrument must not be opened. Repairs, maintenance work and internal adjustments are only to be carried out by a

qualified service engineer.

Use the instrument only in dry surroundings. Any condensation that occurs must be allowed to evaporate before putting the

generator into operation. Long periods of exposure to sunlight and excessive warming by external energy

sources are to be avoided.

Do not continue to use the instrument should any mechanical damage occur. The instrument’s housing and the cable have

both an insulating and a screening function, which can only be assured while the housing is intact. Return a damaged gen-

erator to a EM Test service centre immediately for repair. EM Test, Switzerland and the associated sales organization ac-

cept no responsibility for personal or material damage nor for any consequential damage that results from irresponsible

operation of this instrument.

EM Test esd NX30

Instruction Manual V 1.00.7 6 / 33

3 INTRODUCTION

Under appropriate ambient conditions, both material objects and even the human body itself can become charged with elec-

trical energy. This effect is due to "electrostatics", a phenomenon that has been known since the earliest times. Thales von

Milet (600 BC) noticed how amber attracted very light particles when it was rubbed. Touching a charged item against a con-

ductive object leads to a charge equalization through a spark discharge, which produces a brief but powerful electromagnet-

ic field.

3.1 Electrostatic discharge (ESD)

This effect can be explained as follows: Two insulating substances with differing dielectric constants become charged when

rubbed together, i.e. one material gives electrons to the other one. This effect is known as electrostatic charging.

The same can happen to a person. When somebody walks around in a dry atmosphere on carpet while wearing shoes with

good insulating properties, a charge of several thousand volts can be built up. If, now, that person comes close to a conduc-

tive surface, the charge that he or she is carrying flows away through a hefty spark discharge.

The high equalizing current that flows, and the associated large electromagnetic field that hence results, can cause electron-

ic devices (computers, terminals, process controllers, vehicle electronics, solid state devices, credit or memory cards, etc.) to

malfunction or even be destroyed.

3.2 Simulation

A systematic investigation of electronic equipment and installations to determine their electromagnetic compatibility (EMC)

is, today, a necessity if one is not prepared to suffer the economic disadvantages that could otherwise ensue. As a logical

consequence, appropriate testing is now a legal requirement for the sale of electronic products within the EU.

The ESD test plays an important role in the range of interference sensitivity tests. It simulates frequently occurring effects

and guides the development engineer to any weak spots in an instrument or item of equipment through a combination of

high voltage and high frequency properties.

A simulation device must be constructed such that it reproduces practical conditions realistically. Furthermore, the results

obtained (interference sensitivity threshold) must be reproducible.

The interference immunity of an instrument is not only depending on its construction, it is also largely dependent on the

quality or the consistency of the mass production techniques used. Knowing this has led to the demand for individual testing

or at least random sample testing.

Further weak spots, which could affect the overall interference immunity, can arise through the assembly of instruments into

complete systems because of the installation method used, the cabling and the earthing. An ESD check on systems is there-

fore also prescribed. Such tests provide valuable information about the immunity of the system to effects that occur only

sporadically under operating conditions and hence represent difficult to detect sources of disruption.

The ESD simulator esd NX30 fulfils the requirements of numerous applications in an ideal manner, thus:

Ergonomic shape:

For non-tiring use.

Operation:

Operating elements and display always in view of the user. Constant check on the

test values.

Battery-powered:

(esd NX30 only)

Independence from a mains power feed.

Carrying case:

(esd NX30 only)

Generator and its accessories can be readily packed and conveniently transported.

Microprocessor-control:

All the functions are "on-board", including a pre-settable counter, pre-programmed

test values, discharge voltage detection, etc.

Precision:

The test parameters are maintained precisely for reliably reproducible tests.

Flexibility:

The specifications prescribed in the standards are more than fulfilled in every re-

spect. The instrument also offers many additional handy features.

Safety:

The high voltage generator is automatically deactivated if the instrument remains

unused for a period of time.

Longterm operation:

Automatic longterm operation for stationary applications with the generator mounted

on a tripod.

Application field:

Development optimization, type-approval, EMC certification, batch testing (individu-

ally), testing of fully installed systems.

EM Test esd NX30

Instruction Manual V 1.00.7 7 / 33

3.3 Effects on the EUT

The most significant interference components of an electrostatic discharge are of a high frequency nature. The interference

paths and effects have to be assessed in the range from about 30 MHz to multi-GHz.

The extremely rapid rise time of a discharge affects an object under test mostly through:

•Magnetic HF-coupling between electrical conductors in the electronics and the discharge current path.

•Electrical coupling between the discharge current and signal lines. A discharge current to the EUT flows propor-

tionally through all the associated conductors (earth, mains, data lines, screening, etc.) according to their relative

impedance.

Malfunctions in insufficiently immune electronic equipment and systems make themselves apparent through:

•Program crashes

•Blocking of command sequences

•Incorrect commands, statuses or data being further processed

•Partial system resets (e.g. only in peripheral modules, which lead to errors that the system does not recognize)

•Disturbance or destruction of interface modules

•Destruction of insufficiently protected MOS components.

ESD (electrostatic discharge) testing usually shows up all the weak spots in the HF-range of a piece of equipment simulta-

neously. The uses to which the esd NX30 ESD simulator can be put hence go way beyond those called for in standard-

conform applications.

This instrument provides the engineer with a means to detect sources of error caused by unsuitable earthing, poor ground

connections, insulation problems, etc.

The generator also serves as a reliable aid for localizing hidden wiring faults during acceptance trials on installations.

Use can also be made of the instrument as an insulation tester to determine the breakdown voltage of switches, relay con-

tacts, insulators, etc.

EM Test esd NX30

Instruction Manual V 1.00.7 8 / 33

4 THE esd NX30 SYSTEM

By using the latest materials, construction methods and manufacturing techniques for the robust housing shell, together with

highly insulated modules, the newest high voltage technology, the touch-sensitive operating panel and a control unit built

using the SMD technique, it has been possible to integrate all the functions that a comprehensive simulator system should

offer into one compact instrument.

Professional industrial designers have ensured an optimized ergonomic concept. The instrument, with its well-balanced

handgrip, sits comfortably in the user’s hand and guarantees non-tiring operation. Both the operating elements and the dis-

play window remain in view of the user while work is in progress.

The esd NX30 offers optimal freedom of movement around the work-place and is an ideal test instrument not just for the

development engineer but also for quality control purposes, system tests and for investigations in the field.

The esd NX30 features additionally a build in, switched, bleed off function. This function is particularly useful in applications

where the EUT discharge point is not connected to ground (ex: battery powered equipment, connector pins , etc.). In such

cases a build in bleed off function can avoid external manual bleed off to be done between 2 discharges.

As supplied in the basic set, the system is equipped with a 150 pF / 330 Ω discharge network for the IEC / EN 61000-4-2

and ISO 10605 standards.

The discharge voltage of up to 30 kV for both air-discharges and contact-discharges ensure a comfortable test margin over

and above the levels called for in the standards.

The instrument is well equipped to cope with other (and future) standards. The accessories include various networks and

discharge tips that can be attached by the user himself.

The basic set contains everything necessary for general use. A rich assortment of accessories for special tasks is available

such as a remote triggering unit, further discharge networks, an ergonomically shaped carrying case, a tripod adapter, test

tips, etc.

4.1 The simulator

The esd NX30 simulator is modularly constructed from a number of discrete function units and is available in two models:

Features and Accessories

esd NX30

esd NX30.1

Air Discharge to 30kV

Yes

Contact Discharge to 30kV

Yes

Storage and transportation case

Yes

An internal battery tested to 30,000 pulses at 30kV

Yes

Optical interface for software control

Yes

Interlock

Yes

Remote Trigger and EUT Fail Input

Yes

Self Test

Yes

RCN 150-330

Yes

Internal Bleedoff (DUT Discharge) Function

Yes

Pistol Stand

Yes

25mm Discharge Sphere

Yes

Earth connection (rear)

Yes

Threshold Settings High and Low for Pulse Detection

Yes

R/C Module Detection

Yes

Saving User Test Programs

Yes

Also available are two AUTO sets designed with additional RCNs to fulfill the most common automotive requirements.

EM Test esd NX30

Instruction Manual V 1.00.7 9 / 33

4.1.1 Function modules

The base station contains the battery supply, the high voltage generator and regulator as well as several safety features.

The pistol houses the interchangeable pulse network, high voltage relay, the exchangeable discharge tip, measuring elec-

tronics and the touch sensitive input / display panel.

4.1.2 Block diagram

The various function units are shown in the block diagram:

Block diagram of the base station:

The microprocessor controls and monitors all the simulator functions:

•Touch-panel entries are checked for plausibility. Unacceptable entries are rejected and an acoustic warning notifies

the user of the error.

•Values entered are clearly shown on the large display screen. Further information shows the operating status and

the counter settings.

•The battery charge state is continuously monitored. The display warns if there is a tendency towards low voltage.

The instrument’s functions are inhibited once the battery voltage is insufficient to guarantee the pulse parameters.

•The actual tip is detected and the actual discharge mode will be shown.

EM Test esd NX30

Instruction Manual V 1.00.7 10 / 33

•High voltage generation is dynamically controlled by the processor. Varying load conditions, supply voltages, etc.

can thus be taken into account and have no effect on the pulse parameters.

•The instrument switches itself off automatically if it is not used for a while. The pulse parameters and operating

mode remain stored and ready for re-use.

•The charge voltage to the network is kept constant as long as the trigger is active. The high voltage is discharged

internally when the trigger is reset.

•If no discharge occurs when set for an air-discharge and the trigger is active, the processor waits for about 30 s

then autonomously resets the trigger and discharges the network internally with simultaneous acoustic warning.

•Pulse triggering is monitored. Once an arc has occurred the network is discharged internally so that no further arc-

ing is possible.

4.1.3 Operating elements

Apart from the trigger button itself (pulse triggering), all the operating elements, test-relevant setting and user information are

presented on the touch-sensitive display panel facing the operator.

The esd NX30 is switched on and off with the main power switch. The significance of the elements in the display field can be

seen in the following picture. Further information can be found in section "Operation".

All operations are performed via the touch-panel.

This is an example of a display shown on the panel when the pistol is switched on.

The function of the trigger button on the handgrip depends on the operating mode currently selected:

•As a pulse button in single discharge mode (1 pulse each time it is pressed).

•As an on / off switch in repetitive mode (discharges while button is pressed).

•As a pausing on / off switch in repetitive mode with the preset counter in operation (starts the discharges by press-

ing the button and stops the discharges by pressing the button again).

The remote control facility replicates the action of the trigger button by means of appropriate control signals.

4.2 System components

The basic set is packaged in a practical carrying case and comprises:

•Carrying case (esd NX30 only)

•ESD simulator esd NX30 consisting of pistol and base station with battery power supply

•Discharge network 150 pF/330 Ω to IEC / EN 61000-4-2 and ISO 10605

•1 each air and contact discharges tips

•Battery charger / mains power pack

•Pistol stand (esd NX30 only)

•Operating instructions

This set contains all the items necessary under normal conditions to conduct tests conforming to the IEC / EN 61000-4-2.

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