Teseq NSG 435 User Manual Download Page 42 | Manualshive

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NSG 435 ESD simulator

The contact-discharge method is to be used in preference to the air-discharge
method. The former must, however, be implemented in such a way that there
is a true metal-to-metal contact with the EUT.

Repetitive discharges can really be used only to localize weak spots or to find

sensitive conditions in program sequences quickly. Single pulses then have
to be used for a detailed investigation and assessment of the interference
sensitivity.

The test conditions must always be documented exactly including photos of
the test rig, information about the type and number of discharges, details of the
prevailing climatic conditions, comments regarding the effects observed, etc.

Example of a simplified test rig for a table-top instrument.

Example of a test rig for a system.

Earth wire

Insulation

Bleeder resistor

Ground reference

plane

Horizontal coupling

plate

Mains connection

Earth connection

Earth wire

Ground reference plane

Insulation pallet

Cabinet earthed via
protective earth

Mains connection

Earth connection

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Summary of Contents for NSG 435

Page 1: ...1 NSG 435 ESD SIMULATOR USER MANUAL 601 131H ...

Page 2: ...NSG 435 ESD simulator NSG 435 ESD SIMULATOR USER MANUAL ...

Page 3: ...3 2 1 Function modules 13 3 2 2 Block diagram 14 3 2 3 Operating elements 15 3 3 System components 17 3 3 1 Basic set 17 3 3 2 Charging unit battery pack 17 3 3 3 Options 19 3 3 4 Mains power supply unit 19 3 3 5 Discharge networks 20 3 3 6 Remote triggering 21 3 3 7 Measurement adapters 22 4 Commissioning 23 4 1 Inspection 23 4 1 1 Function check 23 5 Operation 25 5 1 General 25 5 2 Switching on ...

Page 4: ...t procedures 41 6 1 Standard conforms procedures 41 6 2 Other conditions 41 7 Verification of the pulse data 43 8 Maintenance 44 8 1 Servicing 44 8 2 Calibration 44 8 3 Exchanging the R C network 47 8 3 1 Derating of pulse repetition at increased capacitance 49 8 4 Repairs 50 8 5 Disposal 50 9 Declaration of Conformity CE 51 10 Technical specifications 52 11 ESD standards 54 12 Warranty 55 13 Oder...

Page 5: ...ation of the warning could lead to inconvenience or impairment in the performance Example 1 GENERAL This connection must not be confused with the mains power input The following symbol draws your attention to a circumstance where non observation of the warning could lead to component damage or danger to the operating personnel Example Never connect or disconnect the pistol while system is performi...

Page 6: ...nless a correctly connected earth or ground 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 test finger There is a danger of an unpleasant electric shock if the instrument is switched on LC displ...

Page 7: ... 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 simulator 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...

Page 8: ...ulating 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 a carpet with good insulating properties a charge of several thousand volts can be built up If now that person comes close to a co...

Page 9: ...ed so that it reproduces practical con ditions realistically Furthermore the results obtained interference sensitivity threshold must be reproducible The interference immunity of an instrument is not only dependent on its con struction 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 a...

Page 10: ...d Microprocessor control All the functions are on board including a pre settable counter pre programmed test values discharge voltage measurement 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 respect The instrument also offers many additional handy features Safet...

Page 11: ...rough program crashes blocking of command sequences incorrect commands statuses or data being 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 chips destruction of insufficiently protected MOS or other components ESD testing usually shows up all the weak spots in the HF range of a piece of...

Page 12: ...mal freedom of movement around the workplace and is an ideal test instrument not just for the deve lopment engineer but also for quality control purposes system tests and for investigations in the field 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 standard The discharge voltage of up to 16 5 kV for air discharges and up to 9 kV ...

Page 13: ...ll housed in a multi part molded shell HV generator discharge network exchangeable measuring electronics high voltage relay polarity changeover Control section µ processor keypad display and remote trigger connection Test finger exchangeable Earth cable connection Pulse trigger Exchangeable battery pack Tripod bush UNC1 4 20 Handgrip ...

Page 14: ...are clearly shown on the large display screen Further infor mation shows the operating status and the counter settings The battery charge state is continuously monitored A tendency towards low voltage is shown on the display The instrument s functions are inhibited once the battery voltage is insufficient to guarantee the pulse parameters High voltage generator Test finger µP Control unit 10 0 kv ...

Page 15: ...t facility at the pulse output measures the actual air voltage reached during an air discharge and shows the result on the display Pulse triggering is monitored Once an arc has occurred the network is discharged internally so that no further arcing is possible 3 2 3 Operating elements Apart from the trigger button itself pulse triggering all the operating elements are on the surface of the instrum...

Page 16: ...Polarity switching Selection of pre programmed test levels Preselect counter on off F4 Selection of discharge mode Single discharge Repetitive discharge at 0 5 1 5 10 20 25 Hz for air discharge Repetitive discharge at 0 5 1 5 10 Hz for contact discharge Automatic polarity switching Storage of programmed test levels F5 Resets the counter Return from second function F1 F2 F3 F4 F5 ...

Page 17: ...ty is a substitute for the manual trigger button by producing the relevant control signals 3 3 System components 3 3 1 Basic set The basic set is packed in a practical carrying case and comprises Carrying case 42 x 32 x 13 5 cm 16 5 x 12 5 x 5 5 approx ESD simulator NSG 435 with battery pack and 150 pF 330 Ω discharge network conforming to IEC EN 61000 4 2 Ed 1 2 2001 One test finger each for air ...

Page 18: ...ent temperatures over 50 C can lead to degradation of the battery If treated carefully more than 300 charge discharge cycles can be expected without any noticeable reduction in capacity The charger and battery pack form a matched entity The battery must not be charged from any other unit and the charger is to be used exclusively for the intended purpose Operating advice Avoid short circuits Keep t...

Page 19: ...h 3 pin IEC connector Matching 3 core mains cable 3 3 3 Options A range of additional accessories is available for special applications and for testing to other standards Spare battery pack space available in carrying case Mains power supply with adapter Remote triggering unit with 5 m 197 optical cable Discharge networks and test fingers for other standards Coaxial measurement adapter target 3 3 ...

Page 20: ...discharge network and test fingers that conforms to IEC EN 61000 4 2 Ed 1 2 2001 Alternative networks can be installed for testing in accordance with other standards The discharge network and test fingers form a mutually matched combination They are labeled with a corresponding INA number The specified pulse data are only achieved while this combination is maintained Several combinations are given...

Page 21: ...e NSG 435 Pulse triggering or the on off switching in the case of repetitive discharges can be effected by a push button or an electrical signal applied to the triggerbox The electrical signal at the BNC connector must fulfill the following condi tions On V 2 4 10 V I 2 mA t 10 ms Off V 0 8 V Repetition rate 5 Hz The remote trigger is powered by a conventional 9 volt battery The current consumptio...

Page 22: ...has the flat impedance curve to well over 1 GHz that is necessary for the purpose Use of this adapter is only worthwhile in conjunction with a test rig that is laid out in strict conformity with the relevant standard see section 7 3 3 7 Measurement adapters Coax connector Contact surface target Mounting flange MD 101 Designed as per IEC EN 61000 4 2 1995 MD 103 Pommerenke target is a more advanced...

Page 23: ...the necessary safety precautions Charge the battery see section 3 3 2 Connect the earth cable correctly The NSG 435 must never be switched on without an earth cable being connected Allow the instrument to dry out if any condensation has occurred 4 2 Function check Inserting the battery Insert the lower end of the battery the part with the spring blade into the handgrip Gently pull down against the...

Page 24: ...ching functions for a while that result from various self tests and calibration procedures High voltage generation is activated by pressing and holding the trigger button By bringing the test finger close to the earthing point an discharge occurs which is acknowledged acoustically and the display shows the effective discharge voltage in a frame This applies under the following conditions air disch...

Page 25: ... the instru ment refuses to accept any invalid entries It is recommended to carry out the examples directly on the instrument not forgetting to connect the earth cable 5 2 Switching on 5 OPERATION When the instrument is switched on the last used settings will be reinstated The following illustration is hence just one example from a multitude of possibilities Ascertain that the earth cable for the ...

Page 26: ...discharge mode will be displayed Differentiation from the display of the set value is made by the frame around the kV readings The effective discharge voltage depends on various factors such as the distance to the discharge point speed of approach nature of the EUT etc In the case of a contact discharge this measurement is not carried out since only a discharge current can occur The instrument swi...

Page 27: ... More than 10000 discharges until LOW BAT blinks A further 3000 discharges until LOW BAT remains constant 5 3 Battery monitor The battery charge state is monitored continuously An insufficiently charged or empty battery is indicated on the display LOW BAT blinks Change or charge the battery soon The in struments functions and the pulse data are still assured LOW BAT steady Battery empty The instru...

Page 28: ...uency set for this operating mode is too high i e over 10 pulses s The instrument notifies the error with a beep and the erroneous setting blinks for 5 s When working with fixed voltage levels the relevant value is automatically loaded upon toggling between the air contact discharge mode The corresponding test finger must of course be attached to suit the particular discharge mode Air discharge ro...

Page 29: ...ting Call stored values level 1 4 4 values each for air discharge and contact discharge Pressing F1 or F2 raises or lowers Press F3 to select the four stored the voltage respectively in steps of voltage values in each case 100 V Pressing the buttons To change a stored value see continuously changes the voltage section 5 12 level with increasing rapidity 1 2 ...

Page 30: ...r Press F5 to return to the starting menu level This return will also be made automatically after about 10 s 5 6 Polarity F3 toggles between positive and negative polarity The sign shown in the display alters correspondingly ...

Page 31: ... each time the trigger button is pressed The discharge is confirmed by a beep In the REPETITIVE mode dis charges are released at the chosen rate for as long as the trigger button remains pressed no acoustic confirmation 5 8 Counter The counter sums the number of discharges irrespective of the operating mode and irrespective of whether other pulse parameters have been set meanwhile The counter work...

Page 32: ...Pressing F5 a second time causes a branch to the preselect counter menu 5 9 Preselect counter A specified number of discharges 0 9999 can be pre programmed with this function These can then be triggered single by hand or automatically F5 first resets the counter then when pressed a second time branches into the preselect counter menu ...

Page 33: ... F3 switches the preselect counter operation on and off PRESELECT ON OFF Use F1 and F2 to raise or lower the preset value Keeping either button pressed causes the change to occur with increasing rapidity ...

Page 34: ...ce can be continued by pressing it again Pulse triggering is terminated when the counter content reaches 0000 F5 reloads the preselect counter with the original value Once the counter reaches 0000 and the procedure has been stopped the counter can also be reloaded with the original value again and the test sequence started anew simply by pressing the trigger button 5 10 Automatic polarity switchin...

Page 35: ...into the preselect counter menu F4 switches the function Automatic polarity change on and off Precondition PRESELECT ON The active state is shown by the polarity sign in front of the voltage alternating on the display ...

Page 36: ...d over F3 The instrument switches over from positive to negative polarity once half of the preset number of pulses has been released the sign on the display changes This automatic function works in both the single pulse mode as well as with repetitive discharges Reinitialize the operation in single pulse mode after each cycle Reset the counter and select the counter menu again press F5 three times...

Page 37: ...y be utilized in cases of real necessity since every ESD radiates electromagnetic disturbance the effect of which on the environment must be taken into consideration The test area should be made out of bounds for unauthorized personnel The test must be monitored throughout its duration When running on batteries alone the duration of the test is naturally limited Select the repetition frequency in ...

Page 38: ...F2 again to activate continuous operation The display shows Use F5 to return to the original menu level Switching off continuous operation By F5 branch into the preselect counter menu Press F1 or F2 The counter shows 0000 or 9999 respectively Continuous operation is switched off ...

Page 39: ...ontact discharges As delivered the instrument has the test levels set according to IEC EN 61000 4 2 Ed 1 2 2001 The values stored in memory can be altered arbitrarily Select discharge mode air discharge or contact discharge with F1 Call up Voltage submenu with F2 Level Test voltage contact discharge Test voltage air discharge 1 2 3 4 2 kV 4 kV 6 kV 8 kV 2 kV 4 kV 8 kV 15 kV ...

Page 40: ... to specify the required memory location Press F4 again and the value is stored Use F5 to return to the original menu level Set the required voltage with F1 or F2 Range for air 0 2 16 5 kV Range for contact 0 2 9 kV The LEVEL indication shown over F3 disappears STORE appears over F4 ...

Page 41: ... obtained through the relevant national standards bureau 6 2 Other conditions It is not always possible to set up a test rig in precise conformity with the standards By observing a few basics however it is nevertheless possible to make credible assessments of the interference immunity of a test object and to obtain worthwhile pointers to ways of improving it An electrostatic discharge always exhib...

Page 42: ...and assessment of the interference sensitivity The test conditions must always be documented exactly including photos of the test rig information about the type and number of discharges details of the prevailing climatic conditions comments regarding the effects observed etc Example of a simplified test rig for a table top instrument Example of a test rig for a system Earth wire Insulation Bleeder...

Page 43: ...dth CoaxialmeasurementadapterMD101 PellegrinitargetasperIEC EN61000 4 2 or MD 103 20 dB attenuator DC 12 4 GHz SUCOFLEX HF coaxial cable DC High voltage voltmeter Ri 30 GΩ The measuring instruments are periodically recalibrated in compliance with ISO 9001 and ISO 17025 Ground plane Ground strap pulled away at its midpoint 1 2 m ESD simulator Shielded enclosure for the oscilloscope and connecting c...

Page 44: ...and automatically The instrument contains no elements that are foreseen for adjustment by the user A component defect must be suspected if the calibration measurements differ from the published technical data and the instrument is to be returned to an authorized Teseq service centre Measurements can only be undertaken by trained specialists A prerequisite is the availability of the necessary measu...

Page 45: ...the discharge current pulse shape Check to be made under the following conditions Contact discharge Single discharge Polarity positive and negative Voltage settings 2 4 6 and 8 kV Compare the results obtained against the reference figures quoted in IEC EN 61000 4 2 Ed 1 2 2001 Remark Teseq offers an accredited service for this kind of work 100 90 I at 30 ns I at 60 ns 10 tr 0 7 to 1 0 ns 30 ns 60 ...

Page 46: ...A 2 4 kV 15 A 0 7 to 1 0 ns 8 A 4 A 3 6 kV 22 5 A 0 7 to 1 0 ns 12 A 6 A 4 8 kV 30 A 0 7 to 1 0 ns 16 A 8 A These figures only apply to the discharge network and test fingers that comply with IEC EN 61000 4 2 Ed 1 2 2001 Rd 330 Ω Rc 50 100 MΩ HV generator Discharge switch Discharge tip Discharge return connection Cs Cd 150 pF Teseq offers calibration services to carry out such work Charge switch ...

Page 47: ... 8 3 Exchanging the R C network Exchanging the discharge networks is to be undertaken by knowledgeable personnel A clean and well lit working area is necessary 4 5 3 6 8 7 C yellow green B black A yellow ...

Page 48: ...ring 11 Release the network connecting screws in the given order 12 Remove the network 13 Insert the replacement network 14 Firmly screw the color coded network connections into place as shown in the illustration 15 Take care with the placement of the wires so that none becoming trapped while re assembling the generator 16 Carefully screw the upper part of the housing back into place 17 Continue r...

Page 49: ...is is the only consequence however of using high C networks No firmware modification of the NSG 435 is needed The figure shows the derating values for various capacitances versus the voltage If any selected parameter repetition rate and or charging voltage should be out of range same will be indicated by 3 beeps followed by a time out 0 5 10 15 Hz Repetition Rate kV Discharge Voltage C 350 pF C 50...

Page 50: ...rincipal materials that are used in the construction of the NSG 435 The relevant national regulations are to be observed when disposing of the instrument Item Material Remark Housing Control unit LCD display LCD window Chassis plate HV unit network HV relay Test finger Battery Charger Carrying case ABS with glass fiber Epoxy circuit board with SMD components Glass Acrylic Galvanized steel Polyuret...

Page 51: ...51 9 DECLARATION OF CONFORMITY CE ...

Page 52: ...ge voltage 200 V to 16 5 kV in 100 V steps air discharge Tolerance 5 1 to 16 kV Discharge voltage 200 V to 9 kV in 100 V steps contact discharge Tolerance 5 1 to 9 kV Test finger standard Ball and point as per IEC EN exchangeable via locking ring Voltage measurement On HV side dynamic Accuracy better than 5 1 kV to 16 5 kV Arcing recognition Indicated also acoustically in the single operating mode...

Page 53: ...e voltage 200 V to 16 5 kV air discharge 200 V to 9 kV contact discharge Fixed levels 4 values each programmable Auto shut off After 30 minutes idle time without loss of the test parameters Display LCD panel showing Discharge voltage Breakdown voltage Polarity Air contact discharge Counter preselect counter content Soft key functions Battery monitor Weight NSG 435 with battery 1 2 kg 2 6 lbs appro...

Page 54: ... either already identical or compatible to a large extent IEC EN 61000 4 2 Ed 1 2 2001 equivalent IEC EN 61000 4 2 harmonized Many product or product family standards refer back to these documents Special discharge networks and test fingers are called for by 11 ESD STANDARDS ANSI C63 16 Guide for ESD ISO 10605 2008 Road Vehicles ESD SAE J1113 Part 5 Vehicle Component ESD and others ...

Page 55: ...n of Teseq Excluded from the warranty is damage or consequential damage caused by negligent operation or use as well as the replacement of parts subject to deg radation The warranty is rendered invalid by any intervention on the part of the customer or a third party The goods are to be returned in the original packing or other equivalent packing suitable for the purpose of the foreseen means of tr...

Page 56: ...s power supply 80 to 240 V 50 60 Hz incl grip adapter Spare battery pack Remote triggering unit including 5 m opto cable Networks and test fingers ANSI C63 1991 hand metal mod 180 pF 330 Ω IEC 801 2 1984 150 pF 150 Ω Special test finger for fast leading edge 400 ps Discharge networks special versions R and C are to be specified Measuring adapter IEC EN 61000 4 2 IEC 801 2 1991 ESD target set IEC E...

Page 57: ...NOTES ...

Page 58: ...10 8460 8080 F 86 10 8460 8078 chinasales teseq com Germany Teseq GmbH T 49 30 5659 8835 F 49 30 5659 8834 desales teseq com Singapore Teseq Pte Ltd T 65 6846 2488 F 65 6841 4282 singaporesales teseq com Taiwan Teseq Ltd T 886 2 2917 8080 F 886 2 2917 2626 taiwansales teseq com USA Teseq Inc T 1 732 417 0501 F 1 732 417 0511 Toll free 1 888 417 0501 usasales teseq com Manufacturer Teseq AG 4542 Lu...

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