USER MANUAL - R. A. Mayes Company
Contents
1. 1 0 dB 37 dBm to 40 dBm Generator Resolution 1 Hz Accuracy frequency 10 ppm lt 40 MHz 20 ppm lt 80 MHz 35 ppm lt 160 MHz 55 ppm gt 160 MHz Output level 40 dBm to 0 dBm Resolution 0 1 dB Linearity 0 5 dB 1 dB max Distortions Harmonics lt 30 dBc Non harmonics lt 35 dBc Amplitude modulation 1 kHz 3 80 5 internal 10 Hz to 100 kHz 0 to 90 external Input impedance gt 100 VSWR Input lt 2 0 1 Output lt 1 2 1 with 6 dB attenuator Greate CIT 10 basic equipment PCI digital I O Card cabling attenuator system software CIT 10 page 21 of 22 5 6 Factory Calibration of the CIT 10 To ensure accuracy the CIT 10 shall be factory calibrated every year Available from Credence Technologies Inc Tel 831 459 7488 Fax 831 427 3513 http www credencetech com CIT 10 page 22 of 222. There is a possibility to add comments to each frequency mark too After the examination you may go on with the test Return or stop it esc After the test has finally finished the Test window is displayed again Click Protocol to edit the list of frequencies F4 Protocol You may add F1 or delete F2 frequencies and add corresponding remarks Click on OK esc to close the window Edit frequency list Finally you may save F2 or print F3 the protocol You may also load F1 protocols of previous test and edit them in the same way CIT 10 page 12 of 22 Selective Test Click on Selective test F2 while the Test window is displayed to show the next window Selective test 30 Enter frequency and test level into the appropriate boxes Amplitude modulation F2 and test level F1 may be switched on or off Stop the test esc by clicking the button with the same name After clicking on Ramp function the following window is displayed Ramp function Now you can sweep from a startlevel to a stoplevel at fixed frequency To start the programmed ramp function click on the button with the same name After reaching the stoplevel the disturbing signal is stopped automatically Even with the ramp function the amplitude modulation may be switched on or off CIT 10 page 13 of 22 3 2 Test procedure with direct injection The disturbing signal com
3. lest Stop means the programm stops if a high level is recognized No Test Stop sets a frequency mark which may be edited after test stop The directory for the calibration files is displayed at the bottom of the window It may be altered on request Each coupling decoupling device whose calibration file is copied into this directory is displayed in the box Coupling device Now you have to choose wether a complete test sweep from start frequency to stop frequency or a selective test choose a single frequency is performed Complete Test Click on Complete Test or press function key F1 The following window is displayed Complete Test Frequency 0 1561 MHz Level dBm Set frequency mark press F10 Frequency and generator level are displayed while the test is running If the EUT shows any reaction to the injected disturbing frequencies you may set a frequency mark by pressing function key F10 After test stop you may edit this list of frequency marks add comments save or page 11 of 22 print the list Click the Test Stop button or press esc to interrupt the test The following window is displayed Test interrupted Click on Step or Step down to examin nearby frequencies or press function keys Page up or Page down Test level F1 and amplitude modulation F2 may be switched on or off Even during the interruption you may add additional frequency marks F10
4. 2214 Generator Amplifier in 6 7 9 10 Centronics Buchse 8 Qn o EUT AM fail extern Artificial Hand 6 Centronics Connector 36 pol Connect to Centronics cable Connect the PC Interface between Centronics cable and your computer s DAQ card 7 EUT fail TTL CMOS compatible input Stops running application or sets a frequency mark 8 Generator out Drives the built in broadband power amplifier Connected to 10 default May be split up for use with external power amplifiers 9 AM extern Input for external modulation signal for generation of non standard amplitude modulated test signals 10 Amplifier in Input of broadband power amplifier Connected to 8 default 11 Artificial Hand Input for artificial hand in accordance with IEC CISPR 16 1 200pF and 5000 connected in series to ground 12 Power input Input for the line power source Line Fuse Replace only with a fuse of the same rating See the label on the rear panel 13 Earth Terminal Same as 1 on front panel 14 Voltage selector verify that the product is set to match the available line voltage CIT 10 page 7 of 22 Installation of CIT 10 Connect the supplied power cable to terminal 12 on the back panel Connect the PC Interface to the DAQ card in your computer Connect the Centronics cable between PC Interface and your CIT 10 The test set up for table top and
5. Standard test the test level is identical to the calibration level of the coupling decoupling device if CIT 10 page 10 of 22 Vy v v FRANKONIA EMV Mess Systeme GmbH Calibration fixed or Calibration free is displayed in the box Standard test enter values between V and 10 V if Extrapolation is displayed Enter values between 10 V and 15 V if the coupling decoupling device was calibrated without the 6dB attenuator Precompliance CIT 10 75 Enter your test level into the box with the same name This setting depends on the box Standard test the test level is identical to the calibration level of the coupling decoupling device if Calibration fixed or Calibration free is displayed in the box Standard test enter values between 1 V and 25 V if Extrapolation is displayed Minimum value of start frequency is 0 15 MHz Maximum value of stop frequency is 230 MHz Frequency steps may vary between 0 196 and 100 except standard levels Dwell time may vary between 0 2 s and 100 s except standard levels The box Modulation may be switched between internal and external modulation If you need non standard test signals choose external The external modulation signal shall be connected to terminal 9 on the instruments back panel fail signal indicates how the programm shall react if a high level is connected to terminal 7 on the instruments back panel
6. floor standing equipment is according to chapter 7 of EN 61000 4 6 CIT 10 Connect the supplied BNC cable between amplifier out 4 and the supplied 6 dB attenuator The 6 dB attenuator should be placed to the coupling device as near as possible Operation After installing the CIT 10 and arranging the test set up you are ready to gt Double click on 61000 4 6 exe Directory CDG_E 61000 4 6 exe The following window is displayed i gt 61000 4 6 m x Press the Generator button to operate the RF Generator as a stand alone device For more information see chapter 5 1 Press the RF Voltmeter button to operate the RF Voltmeter as a stand alone device For more information see chapter 5 2 Press the Test button to perform immunity tests according to EN 61000 4 6 For more information see chapter 3 Press the CDN Calibration button to comfortably calibrate any coupling decoupling device A calibration file is generated automatically For more information see chapter 4 Press the Self Calibration button to generate a new CIT 10 calibration file For more information see chapter 5 3 CIT 10 page 8 of 22 3 0 Making Tests Tests with different injection methods are described in the following pages If suitable CDNs are available they shall be used For coupling of supply lines CDNs are mandatory For screened cables direct injection shall be used For multi conductor cables and bundle
7. not remove instrument covers Operating personnel must not remove instrument covers There are no user serviceable parts inside Refer servicing to qualified personnel The CIT 10 shall only be operated by qualified personnel Extensive knowledge of the Basic Standard is mandatory The CIT 10 generates electromagnetic disturbances if operated as intended In case of doubt the test setup shall be in a shielded room Accessories supplied with CIT 10 PCI 6503 I O Card ISA Card on request Power cord BNC cable 1 5m Earth cable 0 75m Attennuator Control cable 3m with PC Interface Software WIN95 98 WIN NT WIN 2000 CIT 10 page 3 of 22 Introduction Your CIT 10 is a fully automated system to perform immunity tests to conducted disturbances induced by radio frequency fields according to EN 61000 4 6 IEC 1000 4 6 The integrated broadband power amplifier Class A is capable of driving coupling decoupling networks CDN as well as the EM Clamp up to the highest test levels U 210V Level 3 with exellent signal quality Network Internet Equipment under Test PC based CIT 10 Fig 1 Principle of computer based instrument Your CIT 10 is a computer based instrument A computer based system can perform the same tasks as traditionel instruments with the added benefits of flexibility and efficiency Once the driver and application software are installed you immediately start
8. one s being tested shall be replaced by a CDN which is terminated at its input port with 50Q and as such represents the 150Q loading of the AE to the ground reference plane At the main menu choose Test or use function key on your keyboard 2 Follow chapter 3 1 to go on CIT 10 page 15 of 22 4 0 Calibration of Coupling Devices Coupling devices shall be calibrated before first use except CDN s from our company because these are supplied with corresponding calibration files Re calibration is recommended if the test setup is different from the calibration setup e g different cables different cable lengths etc 6dB Attenuator 30mm n 1500 to 500 adaptor Test generator IN i ws 10092 ee X HF Voltmeter RETO AE EUT 1500 Coupling decoupling device g Yj Ground reference plane Common mode points The 150 42 loading e g a 150 2 to 50 42 adaptor terminated with a 50 2 load at the AE port shall only be applied to unscreened cables screened cables will have their screen connected to the ground reference plane at the AE side Fig 5 Setup for level setting at the EUT port of coupling and decoupling devices The setup for level setting is given in Fig 5 for all coupling and decoupling devices CIT 10 The test generator HF out shall be connected to the RF input port of the coupling device via the 6dB attenuator The EUT port of the coupling device shal
9. USER MANUAL CIT 10 CIT 10 75 RF GENERATOR AMPLIFIER HF VOLTMETER Available from Credence Technologies Inc Tel 831 459 7488 Fax 831 427 3513 http www credencetech com Software Version 1 13 13 10 2000 Contents 2 0 Installation and COBRBeWratloli sese tesa eios a e aret cse dee ases a Su de IR Edu UT UY 5 Hardware and Software Requirements and 3 Installation of NI DAQ driver software and DAQ hardware sese 5 Installation of CIT 10 application 5 Front Panel 5 CMM ed 6 Rear Panel Pear e attic oq fide 7 Installation of CIT 10 ie 8 occ Aue Gets atu cms ages aes ue EP LE 8 S8 WAKING 9 3 1 Test procedure with coupling decoupling 9 Complete TeSt grs isei EOEEPIST 11 Ahe Rr E E E E TE E EE A EE 13 3 2 Test procedure with 14 3 3 Testprocedure with EM Selarmp eed tean nea an bce rte qa iu O SEEE NE M ES 15 4 0 Calibration of Coupling D
10. bration levels approx lt 2V Attention Test setup and calibration setup must be identical don t forget the attenuator gt Frequency steps may vary between 0 1 and 100 gt Return to the main menue by clicking the button of the same name esc page 17 of 22 5 0 Miscellaneous 5 1 Generator The output signal of the RF generator is provided at terminal 8 on the rear panel of your CIT 10 gt While the main menue is displayed choose the Generator button or press function key F4 on your keyboard The following window is displayed i gt Generator Frequency 3 Output JAM off on Level dam JAM inZex gt Type frequency and level in to the corresponding boxes Displayed is always the non modulated signal level Choose level units dBm or dBmV gt The signal level may be switched off or on gt The amplitude modulation AM may be switched off or on gt The amplitude modulation may be switched from internal to external The input for the external modulation signal is terminal 9 on the rear panel of your CIT 10 gt Return to the main menue by clicking the button of the same name esc 5 2 Voltmeter The signal input for the RF voltmeter is provided at terminal 2 Calibration on the front panel of your CIT 10 gt While the main menue is displayed choose the Voltmeter button or press function key F5 on your keyboard The following windo
11. dge to live parts in the mains coupling and decoupling networks Due to the high leakage currents mains CDNs shall have a earth terminal which shall remain connected to the protective earth PE under all test conditions gt Click on the Test button or use function key F1 on your keyboard The following window is displayed i Test Coupling device CDN M2 10 _1 Standard test Calibration fixed Test level 10 0V Start frequency E 0 15 MHz Stop frequency 80 00 MHz Frequency steps 10 Dwell time 295 EUT fail signal Test stop Directory of calib data 4C CIT10 Data Choose your coupling decoupling device from the selector box Coupling device Each coupling decoupling device whose calibration files are copied into the directory CIT10 Data is displayed in this box Choose calibration level and test level identical to achieve maximum accuracy gt Standard test gives you the choice of three different settings Calibration fixed means that test level and calibration level are identical Only start and stop frequency may be varied Calibration free allows you to vary start and stop frequency dwell time and modulation Extrapolation means that each parameter may be varied Even the test level may be different from the calibration level 2 CIT 10 Enter your test level into the box with the same name This setting depends on the box
12. e coupling to the cables L 0 8 m where possible Oim lt L lt 03m Ferrite x gt Auxiliary equipment AE Clamp injection device Short connectio Ground reference plane to earth 6dB Attenuator Test generator Fig 4 Principle of coupling and decoupling according to the clamp injection method When using clamp injection the Auxiliary Equipment AE setup shall embody the common mode impedance as required as close as possible Each AE used with clamp injection shall represent the functional conditions as close as possible To approximate the required common mode impedance the following measures need to be taken Each AE being subject for use with clamp injection must be placed on an insulating support 0 1 metre above the ground plane All cables connected to each AE other than those being connected to the EUT shall be provided with decoupling networks These decoupling networks measures shall be applied no further than 0 3 metre from the AE The cable s in between the AE and the decoupling network s or in between the AE and the injection clamp shall never be bundled nor wrapped and kept between 30 and 50 mm above the ground reference plane where possible The cable length in between the AE and the EM clamp shall be as short as possible lt 0 3m to improve reproducibility at higher frequencies gt 30 MHz The decoupling network installed on the cable electrically closest to the
13. evices eet retener iet en Pe EE 16 5 0 Miscelldnegusc e e ota ede ag s e Aces m ite 18 SA Grid 18 5 2 VI TIS VEL UNE ERTEILEN 18 2 2C alibration ofthe CLESTU ss e n OS OS acte bens E e NoD S Rd 19 OE ACGESSODS retenues e EUNDEM RIA MN DRE aoe dah ida co uds ONE 20 5 3 SPE CIICALIONS TM 21 5 6 Factory Calibration of the CIT 10 reser e eee re enn edente a ya 22 CIT 10 page 2 of 22 1 0 Introduction Safety Summary The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of this instrument We assume no liability for the customer s failure to comply with these requirements Before applying power Verify that the product is set to match the available line voltage and that the correct fuse is installed Ground the instrument This product is a Safety Class 1 Product provided with a protective earthing ground incorporated in the power cord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous Intentional interruption is prohibited Do
14. ing from the test generator is galvanically injected to screened and coaxial cables via a 100 2 resistor In between the auxiliary equipment and the injection point a decoupling network shall be inserted as close as possible to the injection point Fig 3 0im lt L lt 0 3m Wall of shielded room Ferrite ring cores Auxiliary equipment AE 100 Short earth cable Ground reference plane dd 6dB Close to injection ae point Test generator Fig 3 Principle of direct coupling to screened cables For certain simple screened cable configurations the decoupling circuit together with the 100 resistor can be combined into one box The coupling decoupling networks CDN 801 S1 CDN 801 S2 CDN 801 S9 and CDN 801 S25 are examples of this configuration Main advantage of these CDN s is a simpler operation Otherwise the test pocedure with direct coupling is identical to the test procedure with CDN s as described above gt At the main menu choose or use function key on your keyboard 2 Follow chapter 3 1 to go on CIT 10 page 14 of 22 3 3 Test procedure with EM clamp With clamp injection devices the coupling and decoupling functions are separated Coupling is provided by the clamp on device while the common mode impedance and the decoupling functions are established at the auxiliary equipment Fig 4 The electromagnetic clamp combines capacitive and inductiv
15. l be connected in common mode through the 150 Q to 50 adaptor to the HF Voltmeters Calibration The AE port shall be loaded in common mode with a 150 to 50 adaptor terminated with 50 Q Suitable calibration adaptors are available from our company for all coupling and decoupling devices gt Choose the CDN Calibration button or press function key F2 on your keyboard The following window is displayed CIT 10 page 16 of 22 CIT 10 E Calibration of CDN s Frequency range 0 15 230 MHz Test level 3 0 Frequency 01500 MHz Frequency steps 1 0 Level dBm Abort Ctil F1 Directory for calibration data amp CACITIONData gt Click on Calibration Start Button F1 to start the calibration gt You choose the frequency range of calibration between 0 15 MHz to 80 MHz or 0 15 MHz to 230 MHz gt CIT 10 Enter test levels calibration level between 1V and 15V Maximum accuracy is achieved if test level and calibration level are identical gt CIT 10 For precompliance tests levels between 10V and 15V may be generated Remove the 6dB attenuator at calibration levels above 10V gt CIT 10 75 Enter test levels calibration level between 1V and 25V Maximum accuracy is achieved if test level and calibration level are identical gt CIT 10 75 Connect attenuator 20 dB 0 5 W in between Generator out 8 and Amplifier in 10 on the back panel for small cali
16. s of cables the EM clamp shall be selected 3 1 Test procedure with coupling decoupling networks The test set up for a single safety class 2 product is shown in Fig 2 500 2 CDN T2 telecomm lines 05m Balanced pair EEES 500 CDN M2 Mains OMEEEMER m 4 EUT Unscreened mund CDN AF2 AE gt Insulating support h 0 1 m 6 dB Attenuator Reference ground plane Conducted Disturbances Test generator Fig 2 Test setup for a single safety class 2 product All instructions of the basic standard should be noticed The EUT shall be placed on an insulating support 0 1 metre 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 metre from the EUT CIT 10 page 9 of 22 The cables between the coupling and decoupling devices and the EUT shall be as short as possible and shall never be bundled or wrapped Their height above the ground reference plane shall be between 30 and 50 mm where possible CIT 10 The 6 dB attenuator shall be placed to the coupling and decoupling device as near as possible Warning Capacitors bri
17. t your CIT 10 and start operation Installation of NI DAQ driver software and DAQ hardware running applications on your PC must be closed Insert your NI DAQ driver CD and click on setup exe Follow the installation wizard and choose the default values at Select components After installing your driver software you are ready to install the DAQ board into your computer d In all cases install your NI DAQ software prior to installing your DAQ hardware Reboot your computer Configure your device using the NI DAQ Configuration Utility 4 Enter device number 2 Installation of CIT 10 application software Insert the application software CD and click on setup exe Follow the instructions on your screen The installer creates a directory named CDG E where you can doubleclick on 01000 4 6 exe to start the application Copy the calibration files of your coupling decoupling devices into the directory CDG_E Data CIT 10 page 5 of 22 Front Panel Features CIT 10 CONDUCTED IMMUN TEST SYSTEM GmbH 1 Earth Terminal For connection of the supplied earth cable to the ground reference plane 2 HF in Input of the RF Voltmeter 3 Thermal Protection Indicates thermal overload of the power amplifier Cooling down resets the amplifier automatically 4 HF out Output of the broadband power amplifier 5 Power Line switch turns the CIT 10 on and off page 6 of 22 Rear Panel Features
18. testing The results are printed saved or distributed over your companies intranet or the world wide web The calibration for all coupling decoupling devices is performed automatically with the software creating a specific calibration file for any individual CDN or EM clamp No calibration at all is needed for our CDNs or EM clamp they are delivered factory calibrated with a calibration file Our software is programmed in LabVIEW the industry s most popular instrumentation software This makes it easy to integrate our application software into measurement and automation systems Every analog or digital signal of the EUT may be monitored with a separate DAQ card or with ANA 1020 signal acquisition module only analog signals So it s easy to display the EUT s output signal as a function of the disturbing frequency The CIT 10 is composed by three function blocks which can all be driven separately RF generator broad band power amplifier and RF voltmeter CIT 10 page 4 of 22 2 0 Installation and Configuration Hardware and Software Requirements and Installation You should have the following hardware and software to work with your CIT 10 PC with Windows 95 98 or Windows NT operating system compatible mouse and VGA graphics min 800 x 600 pts Follow the next four steps Step 1 Install your NI DAQ driver software Step 2 Install your DAQ hardware device Step 3 Install your CIT 10 application software Step 4 Connec
19. w is displayed The value is displayed in dBm dBuV or dBmV Refresh time is 0 5 sec gt HF Voltmeter gt Return to the main menue by clicking the button of the same name esc CIT 10 page 18 of 22 5 3 Calibration of the CIT 10 Your CIT 10 is delivered factory calibrated Recalibration is usually not necessary It may be useful to recalibrate the device prior to CDN calibration or after big variations of temperature 2 The CIT 10 shall warm up approx 30 min 2 The supplied BNC cable is in between terminal 4 HF out and terminal 2 Calibration gt While the main menue is displayed choose the Self Calibration button or press function key F3 on your keyboard While the calibration is running the following window is displayed gt Self Calibration Abort press esc Frequency 0 2365 MHz The calibration file Amplifier CDG is overwritten with the new calibration data CIT 10 page 19 of 22 5 4 Accessory The accessory listed below may be ordered by our company either with the CIT 10 or separately Coupling decoupling networks Connector Connector unscreened supply mains lines Calibration adaptors for all coupling devices ANA 1020 signal acquisition module for analog signals EMC testtable with ground plane stainless steel metalfree construction Other accessories are available on request CIT 10 page 20 of 22 5 5 Specifications SSCS 0 5 dB 30 dBm to 30 dBm
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