PRECAUTIONS FOR USE WARRANTY
Contents
1. ee ee eee p 30 o DESCRIPTION uiri oen ate mL UM ME LL M E p 31 3 1 xir do T p 32 CP EE c L E p 32 2 EC cou e S p 33 A TECHNICAL CHARACTERISTICS EE p 33 4 1 EE Ve FN ENDE a cate at an ase ects aa eatceteateosaxnsniescaeen p 33 LEN ee ET EE 8 e Te 6 E p 34 4 1 2 Frequency Trl G M p 34 5 Mi ioo te p 35 MES LI tig el m p 35 5 1 Measurement of a magnetic TN MEDIDA nna p 35 52 MMGASUPEMENE OF AM CIECIIC NGI e p 36 opt Mmmm eei llle gi gt du e e D p 36 54 SCI SOS OO E p 37 5 5 Frequency Analysis d a Ree Oe Tu BE p 37 NE ICIERDICIU p 37 T MEASUREMENT CONFIGURATIONS cci cues aao pu cuia uc e docs eee aaa Ee p 38 WE oe dl e al ERE M p 38 7 1 1 Co2. p 48 E MES c T ereree p 48 SEES Languages TD C A E p 48 9 24 JGonltguradontforcommu hniCallOli ii cece es Ses cnc runs ceu us secede ten uu eve as aei ence eset eee dcs p 48 639 File ipeo E ONO COCCI m p 49 6 36 Fitering olimported E MET E p 49 ESQ a e e Q p 51 E TR MN p 51 SM g2ni e M M RR p 52 TO ORDER m PH p 53 1 PRESENTATION When in operation any system that uses electric power generates electromagnetic radiation that can cause technical problems in instruments exposed to them e g flicker of video screens this is true of electrical machines generally motors welding sets induction furnaces high voltage lines transformer stations household electrical appliances etc and of electronic instruments whether they process or transmit information are used for monitoring or measurement etc The electromagnetic fields these systems produce may be propagated far beyond their enclosures housings or the premi
3. incl Ve rs BS quA See eet alm Dis geya Tact In Hala FIR Sela D AT DRE ir ond number DI Greg Pardi rd rdere urs Dm be FFT Ej bau perched ge aBsurin ESA DI Tax Gem pare dn thea M kkan E di Arakrs ange MEI iter KF rink ca Eih y Fiara aasund ala 0 561 Haagen ii uT Preila ima 140444 E i g 2210204 Eg DRim za ki n uil D Eg DR i5 k a Eg DAV at fap i ics BD Eg Ee C Riobas 1 ba OOH 0046 E sec ite i E Hz 0619 E m Pus 100 00 Hz 0 406 E sec Hus 150 00 Hz 0 219 E mc Hite 700 00 Hz 0172 Eg mz td 2E qp Hz i153 F22H 10 ba JD dD Hz t Eg FFT EF ENT DPFi zE d 0 4 a 15 D Hz 0 122 ER ass Pand rin tat 4000 Hz E4 ER ass Fier Poriin 45 00 Hz 008 ER Wess opa HiH wa Hz ug2 EH 570D Hz ES ER Scope tiigi Ej ba Da an Ha 0063 E SMT OF Seid tij ba E ri Hz 0044 Eg 5HT OSE 34 ka DO D Hz 0054 EH Sines Pond Sed iere 1 ba 750 0n Hz 0035 zj Taek DP 23 10 03 Dutt Z nse ie ce ue Se ee se RR e ne ee e mE ue 8 3 7 DEFINITIONS Below are a few useful definitions intended to facilitate configuring the analysis filters Fieldmeter Receive data used to import the files saved in the Fieldmeter to the PC Fieldmeter Enter data This function acquires and stores the measurements made by the C A42 which then serves only to pick up and convert the measurements The configuration of the Fieldmeter is transcribed on the screen of the PC The measurements entered this way are saved in a file
4. J Max X Y Max Y y Max Zy Phase or globale peak value Max x y z ou Min x y z These are Max and Min values of the signal resulting from the interference of several fields e g the interference of the 3 electric fields Ex Ey and Ez produced in one place by 3 sources Max x y z Max 4 x nY y n z ny Vu St A Min x y z Min x ny y ny z ny in 1 N 5 4 OSCILLOSCOPE OPTION This function displays the time variations of one of the components x y or z of the measured electric or magnetic field or of the largest of the 3 components The oscillogram displayed with an automatic or manual amplitude scale can be triggered in one of 3 modes automatic one shot or external In oscillogram hold mode this function has 2 markers One gives the coordinates of any point on the curve and the other determines a slope that measured between the positions of the two The curve recorded in the storage memory of the C A 42 is made up of 2 048 points 5 5 FREQUENCY ANALYSIS FFT OPTION This function is very useful as a way to analyse the harmonic and non harmonic components of a composite signal The C A 42 uses an FFT Fast Fourier Transform to calculate the frequency distribution of the signal corresponding to one of the components x y Or Z of the measured electric or magnetic field or of the resultant of these 3 components The calculation which is based on 2 048 points gives a result defin
5. RME alue Selection of one of the modifiable parameters Menu Help RG Ko Each press on one of these keys changes the selected parameter by circular permutation including the measurement recording function The selected function or is highlighted by a dotted border e g Standards ICNIRP Gen Pub Field strength i Intern 38 1 201 WT Frequency 6 amp 0 Hz Hor 86 Filter e 0 01 30kHz Calculate e FMS alue In the selected heading the parameter is chosen using v the Up and Down direction keys The selected parameter is highlighted by a black background Field strength M Intern 1 230 71 ICHIRP ccu 1 4 95 ICHIREP Gen Pub Mo Ge d Calculate e RIMS Value When the choice is made the parameter to be selected ok is validated by the OK validation key 7 7 OPTIONAL CONFIGURATIONS It is possible to complete the programmed configuration by refining the choice of hidden parameters from the Options menu Display mode Options 1 Measure value pc ai 1 018 System info sid el ceucrem Send records Erase records Filter 0 01 30kHz Calculate e bh Aalue Field strength M Intern 3 Options W amp utarange 9 Analog out norm Hel Esc Ok When the Standardized Analog Output function is checked the voltages Vx Vy and Vz corresponding to the three components of the measured magnetic field except for the electric field an
6. declared in the then active window of the PC Analysis profile To carry out an analysis i e to process an imported measurement file on the PC an analysis profile is used it may be created just before the analysis is started in the Analysis Analysis sequence already exist and be used as is in the Analysis Analyze with sequence be created in the Analysis Create analysis profile sequence be edited with a view to studying or modifying it in the Analysis Edit analysis profile sequence The pre established analysis profiles are stored in the Analysis profiles directory In the above four particular cases it is possible to create or modify an analysis profile from the analysis window see representation in section 8 3 6 above The functions of the analysis window corresponding to the tabs are defined in the online Help menu of the LOG42 software however a review of a few post filtering Output formats may be useful The Transposed output transforms the file analyzed to make it compatible with a spreadsheet e g Excel by interchanging the rows and columns In this connection it is possible once the analysis is finished to send the new file automatically to Excel or some other post processing program provided that this program has been declared and its access path is specified in the General item of the analysis window The Matrix output is useful when the precaution of recording
7. is checked an address in the form AOO0 letter plus 3 digits is associated with each record The recording is made in a block defined by the Top left address and the Bottom right address Measurement Size in memory Maximum number Maximum duration a records of recording Measured value value 54 54Bytes 9 54137hz 214d 214d bei a measurement 66 a L P 4 I w 179d Frequency distribution FFT 2092Byts 478 X 132h 55d Oscilloscope 12 334 Bytes 81 22 5h 0 94d Linear recording mode The progression of recording addresses is Linear in a sawtooth pattern from the Top left address e g A000 A001 etc to the Bottom right address e g A111 the letter is then incremented e g BOOO B001 etc and so on This option is a convenient way to represent the measurements in matrix form indentify the rows and the numbers the columns A j 001 002 003 004 PB EE E ER l1 1 Meander recording mode The progression of recording addresses Meanders in a triangular pattern starting with a linear increase from the Top left address e g A000 A001 etc to the Bottom right address e g A111 the letter is then incremented and a linear decrease follows e g B111 B110 etc and so on BIII Alli a A000 d Booo COO b a be Ba AO000 7 B000 Coon 7 8 DATA TRANSMISSION Datta transmission Field strengt
8. the measurements in the C A 42 fieldmeter with recording addresses selected according to the linear recording mode has been taken see section 7 7 page 19 the rows will correspond to the letters of the addresses e g B of B021 and the columns to the numbers of these addresses e g 021 of B021 The Histogram output is used to obtain the statistical distribution of the measurements among the Number of classes chosen the Max measured value is entered in the box provided for this purpose The Versus time output is used to represent the time course of the measurements stored by the C A 42 8 3 8 HELP menu The online help function of the LOG42 application software provides the definitions and comments needed for correct use of the software 9 MAINTENANCE For maintenance use only the specified spare parts The maker is not liable for any accident occurring after a repair not done by its Customer Service Department or an approved repairer Cleaning The instrument must be disconnected from all sources of electric power To clean the unit use a cloth slightly moistened with soapy water then let dry Battery charge status The voltage and charge of the internal battery of the C A 42 are indicated in the Options System Information menu see page 24 Recharging of the battery The internal battery of the C A 42 measurement unit must be recharged using the 230 V 50 Hz charger provided with the instrum
9. z RMS value 1 061 pT Choice of frequency step or display resolution Selection of the display mode Hold or Run Activation of the Zoom 7 2 GENERAL CONFIGURATION OF THE C A 42 In this section the use of the various functions is presented by the succession of the main screens with only those comments specific to the new functions used comments on the main functions and on how to read the screens were given in the previous section The various screens presented are linked by symbols having the following meanings Use of the keys of the drop down menu 8 Press on the corresponding key Next screen E ad 5 Or D Use of the Right or Left displacement keys or Fy Displacement in the menus Validation of the proposed choice 7 3 SELECTION OF A MAIN MENU The C A 42 is configured by choosing an operating mode and a type od display or of complementary functions which can be completed by a choice of specific options with assistance from a help function matched to the current or selected configuration Scope M Intern T Py Md z24ms RMS value 1 059pT 2 0 HI Level Trigger Validation of the choice of a main menu Field strength Field strength evaluated Frequency analysis Level Trigger 24m RMS value 1 053pT a LN a Selection of one of the 4 main menus 2 0 Oscilloscope Trigger Curzar
10. 1 30kHz Calculate e RMIS alue Choice of alue normalized with respect the reference value of the selected standard pk Evaluated M Intern 293 U z Standard e ICHIRD Gen Dub Freg 9 S000Hz EMS value 1 142 UT Choice of frequency representation FFT Intern IER 456 RMS value 1 134pT Choice of Oscilloscope function Scope M Intern ZU HT Level Trigger 3 zdms RMS value 1 098pT The frequency displayed is the predominant frequency of the measured field The normalized value displayed depends on the standard selected e G ICNIRP Gen Pub and on the frequency range selected See selection modes page 43 In the Weighted Measurement operating mode the value displayed in 96 is calculed in the selected frequency range Freq 0 to 3 000Hz in the example show opposite the ratio of the amplitude of each frequency component of the signal tot he corresponding reference value of the selected standard is calculated Weighted Value in V f 0 Fmax 1 Fi mesured V enre 7100 ref Time base adjustable from 2ms to 400ms div according to the probe used It can be extended to 0 1ms div by using the Zoom in Hold and Slope measurement mode in this mode the curve is enlarged around the cursors the cursors must be moved again for a slope In this operating mode it is possible to trigger the measurement by an external synchronisation signal this t
11. Field strength Field strength evaluated Frequency analysis ATAHIS eis Send records Erase records Level EE creer a ee Level System info ETC e EE Trigger Maden e a Trigger 2 Trigger 2 e 24ms External Trigger P z4ms SIE V Autatrigger Single sh RMS value 1 053pT RMS value TISSU T RMS value 1 053pT RMS value 1 053pT Operating mode Complementary displays Options On line information corresponds to rhe type of or functions Help measurement to be made v To make a choice in eath of the main menus Remark The External Trigger mode is available only for the Oscilloscope function see page 6 section 3 2 it can be selected in the Visu menu 7 4 RI View Options Field strength Field strength evaluated Frequency analysis E Rcs opes est Level Trigger z4ms RIMIS value 1 0537 EXERCI Field strength M Field strength evaluated analysis DESESENE z4 ms RMS value 1 0215 T Frequenc Level amp Trigger 2 EBOI View Options 7 Field ztrength Field strength evaluated Frequency analysis Level Trigger 40ms RMS value 1 040pT System Field strength Field strength evaluated Oscilloscope T Hz 456 RMS value 1 168pT SELECTION OF AN OPERATING MODE Choice of value measured gt gt Field strength M Inter 3B 1 170 7 BS B11 Expo 0 3 95 Frequency 60Hz Filter e 0 0
12. Meaning of the symbol A WARNING Read the User Manual before using the fieldmater Failure to comply with or apply correctly the instructions of this User Manual preceded by this symbol may result in bodily injury or damage to the instrument and to the installations Thank you for purchasing a Chauvin Arnoux Fieldmeter and for your confidence For best service from this system E read this user manual carefully D observe the precautions for use N PRECAUTIONS FOR USE i The C A 42 fieldmeter uses five NiMH 1 2 V 2300 mAh AA model rechargeable batteries located in an interchangeable unit in the base of the instrument Check that the batteries are sufficiently charged for the planned duration of use The voltage and remaining charge of the batteries are indicated in the Options System Information menu D The measuring device remains On and cannot be switched off when the charger is connected E Conventional batteries primary cells are not rechargeable Never connect the charger if the instrument is operating on batteries of this type you could destroy both the cells and the instrument WARRANTY Unless otherwise stated our warranty is valid for twelve months starting from the date on which the equipment is made available extract from our General Terms of Sale available on request CONTENTS t PRESENTATION ec p 30 PEE UB eu cm
13. TT 12 BE System option Time Liga Date 16 01 2003 Serial port Options Measure value Data recording Send records Erase records A 1 030 Ge Filter 0 01 30kH2 Calculate RMIS Value D gt _ gt L E EO Menu used to configure the system with setting of date and time then choice of data transmission parameters System inta Baudrate e 38400 Handshake W Hon Hott 7 10 ON LINE HELP This On line help function provides information about the measurements made in particular about the results and the display of the measurements as a function of the current configuration Information on the current measurement Sustem View Options EE Measure value 1 2 Menu View E 4 This display shows the current measuring value With the Fields xFilter and Calculate you can control the measured value The S L033 Y 0 250 0 608 shown frequency is the main Frequency 60Hz Ho ge frequency Mote In fields with more than one frequency and Scrolling of the displayed page Filter e 0 01 30kHz Start nearly the lt ame field tengeh the s ld Up a d Calculate e ae Enr shown frequency could be wrong direction keys See Browser 7 hero Fe RSF F amp gt _ gt spage 3 Information on the values displayed In the menu View you select which values are displayed in the additional line and which record 1 2 format is used when st
14. WG 141 TE zn 755 5 115 E in E PE AWS MEA Med 2 3D bHE ze 341 JT 11 1 DI 711006120 5 114 210 5B Eh 151 TE 155 755 5 114 Ei Ecc DRrteg un 1 PE AWS MEA MEJ 2 3D0bHE iy 241 JT 11 1 El FFT DR 22 1024 on 5 114 210 B 172 J55 TE zn 755 5 114 1 PE AWS MEA MEd 2 3D bHE ze Z4l JT 11 1 5 114 210 5B E4 74 CH zw J55 J5 114 d RME AWS MEA Med 2 Akti iy 241 JT 11 1 J5 115 210 4d 173 153 TB SO 157 5 115 5 PE AWS MEOaID MEd 2 3DbHE V 341 JT 1 1i J5 114 210 Wu 15 74 CH SO 755 5 114 T RME AWS FeO ME4 2 3D bHE iy 341 JT 111 5 114 210 56 152 JBI TB 155 J57 J5 114 H PE AWS MFAT MEd 2 3DbHE iy 341 JT 111 5 114 210 B 1E 755 TB zn 755 5 114 H PE AWS FeO MEJ 2 3D bHE V 341 JT 111 J5 114 210 5B 15 151 TB SO 755 5 114 ID PE AWS MEOaID Med 2 3D0bHE iy 341 JT 111 J5 115 210 hd 15 151 i zn 755 5 115 11 PME AWS MFD MEd 2 ADObH i 241 pT 11 1 J5 114 210 60 154 EE d an 2 154 5 114 Eg DAT le PE AWS FeO MEJ 2 3D bHE V 341 vu 111 Ej EDF C Rpbas 1 bd 5 114 210 5B EZ 755 CH 2 755 5 114 ER wc itia 13 PE AWS MFAT MEJ 2 3D bHE iy 341 vu 111 Ej wc ig 5 114 210 5B 174 157 TE 2 755 5 114 Ej wc Dar 14 PE AWS MFAT MEd 2 3D bHE V 241 JT 111 Eg mci 5 114 210 56 15 74 CH 2 755 5 114 EN F2 21 1024 ba i FME AWS MFAT MEJ 2 40kHi iy 242 JT il Eg i EF idis rip i we c Pregraan Piai Cherie Lagi ee HIT DFI 22 1 D D84 iru PI E AEN ISCH AE 8p er Bi Br Y spes Lee irs Lang 13 35 8 3 6 FILTERING OF IMPORTED DATA Generally wh
15. a slope between the positions of the 2 cursors in mT s or V m s multiples and submultiples In Hold mode the zoom increases the time base resolution 2 A short press on the V Div or Zoom key changes the measurement range or the value of the zoom in the direction indicated by the arrow a long press approximately 3 seconds changes the direction of the arrow and so the direction of variation increasing or decreasing For the Oscilloscope function the Zoom is available in the measurement Hold mode it is replaced by the time base control in the continuous measurement mode Run mode 7 1 4 DISPLAY OF THE VARIATIONS OF AFIELD VERSUS FREQUENCY FREQUENCY ANALYSIS FFT The frequency distribution of the harmonic and non harmonic spectral purity of a composite signal is obtained by calculating an FFT Fast Fourier Transform on 2 048 points in the following frequency ranges to 3 dB down 0 to 29 kHz or 0 to 91 kHz The coordinates of a point nT Hz or V m Hz are determined using a cursor in the Hold or Run mode The display resolution frequency step can be chosen from among 1 1 67 2 5 10 16 7 20 50 and 100 Hz Internal probe used Configured measurement function Frequency Distribution FFT FFT hi Intern Representation of the 1 0 components of the measured field as a function of frequency T Coordinates of the point of 5 intersection of the cursors Frequency Se 7
16. act correctly configured with respect to the PC Options System menu In the File Option RS232 menu of the LOG 42 configure the communication interface so that the data rates and protocols are the same and choose the appropriate port generally COM 1 ILCHEEEEESUO G gl User info Desioa BEZ Progresa Mele Pr C OH CDM Hone IN BACH v pz COM Meee Bad aie SED FF aa wem A 8 3 5 File import procedure To display a file stored in the C A 42 on the screen of the PC then process it you must first import it To do this Configure the C A 42 for Options Transmit data Field strength M Intern 3 Send records Humber of records Ge Send from 1 to 86 Choose the number of blocks and their corresponding serial numbers Configure the LOG 42 for Data Receive data Beni dits E ou cen Jat debe heron by cei fo rer tar D phone endiecok ad fr eschaskon undi Path Chren Fis File myar Hanns 1 ge Name the file to be loaded then on the C A 42 in the first window press Start The numbers of the blocks transmitted scroll on the PC in the LOG 42 communication window When the transmission is over the data recovered by LOG 42 are displayed on the PC the file once named is stored in the tree structure under Measurements a o EE alg Dia gera Arabe atik Han e RAER E z 4 Haagen PE AWS MFI MEd 2 3D bHE ze 242 JT III 5 115 z11 5B
17. d available on the analog output are normalized to 1V at full scale in the frequency range from DC to 30kHz whatever the range selected When this function is not checked the voltages Vx Vy and Vz available on the output of the measurement probe are transcribed to the analog output with no change of level or frequency band Data acquisition Options Measure value A 1 018 System info EES el Gustem Send records Erase records Filter 0 01 30kHz Calculate e RMIS Value Trigger e auta W Acoustic confirmation O Measuring point Increment e re inui In Top left A000 Down Wl Fiald cteanath hi Tntarn f Data recording config Time 1s Choice of recording mode Manual or Automatic each recording is punctuated by an audible confirmation Automatic recording mode two consecutive recordings are separated by a time interval adjustable from 1 to 999s The data recording trigger mode can be chosen using the method used to choose a parameter see Selection of one of the modifiable Parameters page 43 For Automatic recording the preset time interval between 2 consecutive recordings chosen in the Increment field is from 1 to 999s As an example for maximum interval of 999s between two records using the total storage capacity of 1MB the maximun possible durations of recording for the various measurements possible are given below When the Measurement point item
18. ded as standard with the probe 3 The values of the 3 components of the sensed electric field are transmitted to the measuring equipment via a 5 m optical fibre so as not to place any conductor near the probe and keep the operator also a conductor and the fieldmeter case as far as possible from the measurement point 5 3 CALCULATION METHODS The C A 42 fieldmeter receives on its inputs three voltages corresponding to the 3 components of the field measured whether electric Ex Ey and Ez or magnetic Hx Hy and Hz The following 3 values on which all the displays are based are calculated from these 3 voltages according to the configuration of the instrument the RMS value the peak value and the phase peak value or global peak value corresponding to the maximum maximorum of the several fields at different frequencies interference These values are obtained by the following calculation methods RMS value Me X y or Z Where n is the frequency the RMS values on the reference axes x y and z of a signal having N frequency components are respectively VerixXi Gar iF Faf Y The global RMS value of the resultant is Verfix Y Z JVef CX Verf Yr Fen izy Peak value MAX x y Z This is the Max value of the amplitude of the equivalent field calculated at the predominant frequency of a composite signal Max X max x n Max Y max y n Max Z max z n Max x y z
19. depend on the auxiliary probe used see table of characteristics below Display Backlit liquid crystal LCD display 160 x 140 pixels Measured value displayed by 6 x 12 mm digits Frequency filtering Chosen by the user depends on the standard selected and on the probe used With fixed Band Pass Filters 16 67 50 60 83 3 150 180 250 300 400 1200 and 2000 Hz Stored evaluation standards standard ICNIRP Guidelines Occu Workers and Gen Pub public EN 50366 BGV B11 Exp 1 Exp 2 Exp 2h d 26 BimSchV others optional Memory 1MB corresponding to 15 150 measured values 80 oscillograms or 475 frequency responses Communication RS232 serial port Speed from 4 800 to 57 600 bauds Xon Xoff RTS CTS protocol Analog outputs 3 channels Vx Vy and Vz Calibrated 1V full scale for all ranges used Frequency range 0 to 30 kHz Direct Output voltages of the magnetic field probes only without modification of amplitude or frequency band Climatic conditions Operating temperature 0 to 50 C Relative humidity 20 to 80 96 without condensation Altitude can be used up to 2 000 m Power supply By rechargeable internal battery 5 1 300 mA h Ni MH AA Battery life Without backlighting gt 6h With backlighting gt 2 5h Charging time 3 to 4 h Fast charging Charger 230 V AC Output voltage 12 V DC 500 mA Safety class Il Electromagnetic compatibility Emi
20. ectromagnetic exposure at the work centre detection of errors if there are technical problems such as video screen flicker compliance with maximum values in the context of work centre safety for persons exposed for occupational reasons Public and private sectors Measurement of the field strengths radiated by high voltage lines transformer stations etc and by household electrical appliances and installations in the context of checks of compliance with the maximum values stipulated by standards or other more stringent recommendations concerning the exposure to electromagnetic fields of the public and of private users 3 DESCRIPTION Locations and descriptions of controls The activation adjustment and interconnection devices of the C A 42 fieldmeter are shown below lmica isobi pic magnetic eld probe TOH to SOKA Fi EGET 3 1 10 3 2 FRONT PANEL It comprises the control keypad and the display module Liquid Crystal Display LCD 160 x 140 pixels backlit operating in the text and graphic modes The measurements are displayed by large digits 6 x 12 mm Drop down menus that propose various options according to the current measurement configuration Cancel key used to exit from the current drop down menu or configuration function without modifying the previous choice Protective elastomer enclosure On Off key A short press on this key switches the measuring equipment on or off When switched on the C A 42
21. ed at 1 024 points while only 100 points are displayed the points displayed correspond to the root mean square of packets of 10 consecutive points The frequency distribution displayed which has an adjustable frequency step and a Zoom function can be spread Also the amplitude scale of the analysed spectrum can be automatic or manual In the spectrum hold mode a marker when activated gives the coordinates of any point of the spectrum 6 SETTING UP Power supply The C A 42 fieldmeter uses 5 rechargeable 1 2 V 2300 mAh NiMH AA batteries located in an interchangeable unit in the bottom of the instrument under a protective cover that snaps into place IMPORTANT Check that the internal battery is sufficiently charged for the planned duration of use The voltage and remaining charge of the battery are indicated in the Options System Information menu The battery unit must be left inside the instrument when recharging For this purpose the C A 42 is delivered with a safety class Il charger which accepts a line voltage from 100 to 240 VAC Even so check that the line voltage suits it The charger is connected to the C A 42 via a coaxial connector on the top of the instrument REMARKS As long as the charger is connected to the C A 42 the latter remains On and cannot be switched off Charging takes 3 to 4 hours and ends automatically A Conventional batteries are not rechargeable Never connect the charger to the C A 42
22. en the C A 42 records a series of measurements all information necessary for the calculations performed by the C A 42 prior to display of the requested quantity is stored at the same time When the LOG42 imports a file stored in the C A 42 all of this information is imported at the same time and is therefore available simultaneously see screen shot above Therefore to extract a single class of parameters you must perform a selection by filtering in the complete file This Filtering operation is described below In the tree structure on the left side of the screen right click on the name of the file just imported Choose Analysis in the window that opens w HE mH A ise Ad cere Ej i Ej ii i Ej EC DRrteg n Ej FFT DR 22 10 04 zm E iess Pand rin rir Ej Gem ke DI Scope iHi ul El Dro Pari El i Geen Ej Ta Gem E du Arapa Shar Viagrum ER 21 10 04 3 ta In the new window choose Outputs OOOO s Bened CUpul Cate recoed Ure Unerdetned Measuring i it pul borat i T peg Ke DEST f onip bt nes oi dela Vo E Ban cim haadinar G ph ural Ai ingen out pal sa cond tapes Ris amd FFT see natalian Hacc urd Jurcharged Bis Epi E E EH and in the Output formats box choose the configuration of interest by selecting it x Bened Dupi Dara recced Bel Lierdeined Measuring Alt path und Cond tpe AES amd FFT Hace urd BisiT En
23. ent Charging takes 3 to 4 hours and ends automatically Attention As long as the charger is connected to the C A 42 the measuring equipment remains On and cannot be switched off Conventional batteries are not rechargeable Never connect the charger if the instrument operates on batteries of this type You could destroy both the instrument and the batteries Note To preserve the charging capacity we recommend periodically completely discharging the battery before recharging it approximately every 3 weeks Replacing the internal battery pack We recommend saving the measurement results to the PC before changing the battery pack because a prolonged absence of power to the electronic circuits of the order of 60 seconds may cause the information stored in the fieldmeter to be lost To replace the internal battery pack you must remove the protective enclosure then the bottom cover of the instrument The cover can be removed by pressing simultaneously on its two grooved sides To extract the battery pack simply press and pull on the tab of the module see representation of the bottom panel on page 8 The battery unit must be put back in its housing with its tab upwards it can be heard to snap into place Resetting the C A 42 If the C A 42 malfunctions if for example it is impossible to change the configuration of the instrument it must be reset The C A 42 is reset by proceeding as follows Press the 5 and v keys of the browser
24. h M Intern B Options Measure value Data recording Oo Send records Erase records A 1 021 vr t E GEN Frequency 6 Sustem Filter e 0 01 230kHz Calculate e RM S alue OD Help Es e mem UTE Send records This item is used to determine the Number of records 86 number of blocks to be transmitted to Send fror 1 to 86 a PC and the set of data to be transmitted from to Errasure of data Field strength M Intern B Options Measure value Data recording H Send records Erase records K i 1021 VW T rupe System info Frequency 51 System Filter 0 01 30kHz2 Calculate e RM S alue vot Help Esc E Tree LA Erase records Humber of records 86 Same principle to select the data or Erase from 1 to 86 a block of data to be transmitted 7 9 SYSTEM INFORMATION System information Field strength M Intern 3 System information Serial no of the instrument and System Serialnr 0341 identification of the probe currently Battery GEM 109 mih used serial no and type available Free memory 879 3 kB memory and remaining battery life Probe M Intern SMr 0 When an EF400 probe is used the remaining life of its internal battery is given in this menu Options Measure value 1 d Data recording Send records Erase records E IL DES MC amp Filter 0 01 30kHz2 Calculate e RIMS V alue Sustem inta Fiold cteanath
25. if it is operating on batteries of this type you could destroy both the instrument and the batteries 7 MEASUREMENT CONFIGURATIONS Operating configuration upon power up When switched on the C A 42 resumes the configuration it was in when last switched off 7 1 OPERATING MODES The C A 42 can be configured for four different operating modes illustrated by the commented screen shots below Measurement of a field electric or magnetic with permanent display of the measured value Comparison of the measured field with the reference value of a Standard Weighted measurement Oscilloscope function with representation of the variations of the measured field versus time in option Display of the frequency representation of the field making it possible to analyse the harmonic distribution FFT in option 7 1 1 CONTINUOUS MEASUREMENT OF AN ELECTRIC OR MAGNETIC FIELD MEASURED VALUE Field strength M Inter 3B Choice among 6 melorized RMS value of the measured norms field with the JT corresponding unit Selection of a type of e EGY B11Exsp 2 1 3 36 Predominant frequency filering Frequency 60Hz of the measured field Filter e 0 01 30kHz Choice of value displayed EE RMS val Peak val Or l Memory mode used to save Phase global peak val Menu a measurement Access to the main measurement configuration Informations menus Change of measurement range increasing or decreas
26. ing direction 1 The Status Bar groups the main configuration information The type of measurement made measured value oscilloscope function frequency response weighted measurement The probe used Internal or External MF 400 MF 400 H MF 05 or EF 400 The axis for which the measurement is displayed in the Oscilloscope or Frequency Analysis mode X Y or Z The status of the internal battery charging or discharging with visual estimate of the remaining charge 00 Example The status bar of the screen above indicates that the C A 42 is measuring a magnetic field using its internal probe M Intern and displays the measured value Measured val its internal battery is charging T 7 1 2 MEASUREMENT NORMALIZED WITH RESPECT TO THE REFERENCE VALUE OF ASTANDARD WEIGHTED MEASUREMENT Weighted Measurement Operation on internal i b Display of the trend of the attery measured value The Evaluated Intern OB central mark corresponds to the reference value of Weighted Normalized value of 29 E Oo 7 the measured field with respect H E the standard 100 tot the reference value of the selectef Standard Choice of one of the 6 opp stored Standards Standard e ICHIFEP Gen Pub Memory mode regs 7 O SO000Hz Frequency step RIS value 1 14250T Measurement range used Value of the field displayed from 1 to 6 according to the chosen calculation method RMS Measurement Hold mode
27. is in the measurement configuration it was in when last switched off A long press approximately 5 seconds switches the backlighting of the display on or off Remark When its internal battery recharges the instrument is automatically On it cannot be switched off during recharging Main characteristics of the internal isotropic magnetic field measuring probe Browser Direction keys During a measurement it is possible to change the parameters of the configuration used by selecting the menu to be modified using the Right and Lett direction keys The selected menu is identified by a dotted frame around a list of possible choices The choice is made using the Up and Down direction keys OK key used to validate the selected configuration parameters Function keys The four yellow function keys are associated with the drop down menus in the bottom part of the display 11 H 7 When an up or down arrow or the sign or appears in the box next to one of the function keys indicating the direction of change of the value concerned Measurement range Time base Zoom etc a long press of the order of 4 to 5s on this key changes the direction of change The internal isotropic magnetic field measurement probe is located at the top of the unit above the LCD display Top Central opening intended to hold the MF 400 MF 400 H and MF05 magnetic field measurement probes Coaxial receptacle for connecting the e
28. mponents Vx Vy or Vz of the RMS value of the measured electric or magnetic field or of the resultant of these 3 components using an FFT Fast Fourier Transform This frequency distribution displayed with an automatic or manual amplitude scale has an adjustable frequency step and a Zoom function that can be used to spread the spectrum analysed FFT calculated on 2 048 points and displayed on 1 024 points Frequency range to 3 dB down Oto 29 kHz and 0 to 91 kHz Resolutions 1 1 67 2 5 10 16 7 20 50 and 100 Hz Hold Run function Makes it possible to use one cursor to determine the coordinates of a point nT Hz or V m Hz multiples and submultiples 4 2 PROBES Isotropic probes Internal Lwa MraxH we em Magnetic field Magnetic field Magnetic field Magnetic field Electric field Equivalent area Wow iw Frequency range to 3dB 10Hz to 30kHz 10Hz to 400kHz 2 10Hz to 400kHz 2 0 to 500Hz 5Hz to 400kHz 5 down Without filter Measurement dynamic 200nTto40mT 10nT to 20mT 100nT to 200mT 1uTto1T 1V m to 30kV m range Measurement scales 4 40 400uT 4 40mT 200nT 2 0 20 2 0 20 200uT 200uT 10mT 300V m 200uT 2 0 20mT 2 0 20 200mT and 1T 3 and 30kV m rou tadgis 9 24dgis ca 2dagts 29 Band Pass Filters 11 1200 2000Hz 1200 2000Hz 1200 2000Hz DC 1200 2000Hz Power supply none none none Ni MH or Ni CD batte
29. netic field probe yis v P01 1673 02 Magnetic field probe le OTA BEE P01 1673 03 Magnetic field probe VIS A P01 1673 04 Electric field probe zuo P01 1673 05 Replacement battery e ei GE P01 1673 06 Small metal storage Case __eaaeeccccccccccccccausueseesececceeeeesaeaueseeeeeceeeeesseeeaeusseeceeeecessseseuessessceeeeeessessaassasaaageeeeeeeeeees P01 1673 07 Alom Vie ROO WEE P01 1673 10 Spares Small metal storage case __eaneeeccccccccccccccausueseseceeceeeeecaeaueseeeeceeeeeeeesesauuesseeeeeceeeseesesseeseeeeeeeessesseassaaaaaeeeseeeeeees P01 1673 07 Large metal storage ANN ccc P01 1673 08 Canyng Ce WEE P01 1673 09 MOE O eater eH P01 1673 11 R9232 Ce e c P P01 1673 12 230V Daiei Ce e CS P01 1673 13 Output analogic voltage cord 4444 4 sssseeeeeee nennen nnnm nn nen sss nsnnni i nnne nnn riis sss sa sena sinn nn rennes P01 1673 14 06 2005 Code 691403A00 Ed 2 Deutschland StraBburger Str 34 77694 KEHL RHEIN T l 07851 99 26 0 Fax 07851 99 26 60 Espana C Roger de Flor N 293 Planta 1 08025 BARCELONA T l 93 459 08 11 Fax 93 459 14 43 Italia Via Sant Ambrogio 23 25 20050 BAREGGIA DI MACHERIO MI T l 039 245 75 45 Fax 039 481 561 Osterreich Slamastras
30. ntinuous measurement of an Electric or Magnetic Field Measured value p 38 7 1 2 Measurement normalized with respect to the reference value of a standard Weighted Measurement p 38 7 1 3 Display of the time variations of a field Oscilloscope Function ecce eeessss p 39 7 1 4 Display of the variations of a field versus frequency Frequency analysis FFT p 39 7 2 General configuration of the eegene p 40 To Gelctionoi aman Men EE p 41 ro E ee Entente e em p 42 5 SelecionoradisDIaV un TE p 43 7 6 Parameterising of the current configuratiOn 111 esee Lees sees eere ee eene eee n e nnne nente nnns anna nuns nans nass nnmnnn nnmnnn p 44 rere voici p P en eee p 45 To S nie n oam p 46 r EE Eu An et A e BE p 46 7 10 el E Ii dy C S p 47 0 ROA COMMUNICATION p 48 o1 CONNECCION cse E p 48 02 eei PR p 48 683 ee Ee ul a co c E0 S4 4S4nntt RRe p 48 AMICI rur c
31. oring Menu View Ai 1 036 EI Zi 0 616 9 ANA proportion Frequency 60H Ho 85 The measured value on each auis iz displayed The stored data record Filter 0 01 30kHz Start includes the RMS and Peak value Calculate e io e RB af every auis and includes also the Information on the software version and on Chauvin Arnoux Field strength M Intern 3 _ Measure value 1 2 Menu wiew P we E Fieldmeter C A 42 mL e l4 Y D253 Z 0 619 v1 09 c 2004 Frequency 60Hz Ho Ge bu CHAUVIN ARPNOLIS Filter e 0 01 30kHz Start http www chauuip aprpoust Com Calculate e cae LEen 8 RS 232 COMMUNICATION The C A 42 fieldmeter has as standard a RS232 serial interface that allows it to communicate with a desktop computer PC using its LOG 42 application software 8 1 CONNECTION The C A 42 is connected to a PC via the RS232 serial interface by a special cable provided as standard reference P01 1673 12 It has a 9 point D SUB connector on the PC end and a special 5 pin circular connector connected to connector no 5 on the C A 42 end see identification of top panel connectors on page 31 8 2 CONFIGURATION The configuration of the serial link is indicated in the options system menu of the LOG 42 A data rate from 9 600 to 57 600 bauds can be chosen The communication protocol can also be selected in this menu as standard it is the following Fiald cteonath M Tntarn IA Data recording config T
32. ranges dynamic ranges scales and measurement accuracies depend on the auxiliary probe used which the C A42 automatically recognizes The C A42 adapts the values displayed and its configuration parameters to the probe to which itis connected if the automatic mode is activated for the choice of range Auto range then the range that is best suited to the value measured is chosen automatically 5 1 MEASUREMENT OF A MAGNETIC FIELD Magnetic fields are measured by the isotropic magnetic field probe built into the instrument or by one of the three external isotropic probes MF 05 MF 400 or MF 400 H The 3 components of the magnetic field Hx Hy and Hz in a system of Directinn of the measured orthogonal axes x y and z are sensed by three orthogonal induction coils n RR X Axis mounted in an enclosure as shown in the installation diagram opposite for a KW ee an MF 400 or MF 400 H c p wg LN The directions of the 3 orthogonal measurement reference axes x y and z are e dM Z4 m indicated on the marking label attached to each probe NL The voltages induced by the 3 orthogonal induction coils Vx t Vy t and Vz t T are amplified and digitised by an A D converter before processing and display The MF 400 and MF 400 H probes which have a measurement area of u 100 cm comply with the requirements of standards DIN VDE 0848 Set i gt U ar eB oe Dung thee Dia 5 2 MEASUREMENT OF AN ELECTRIC FIELD Elect
33. requency Evaluate displayed Freq 75Hz in the example show Mlin 1 13 3H I 3n T Bo B11 Exp 0 3 95 W Mi d opposite to the reference value of the selected Frequency 6 amp 0 Hz Ho 56 Frequency 60 Hz Hor Ge standard Eg ICNIRP Gen Pub at the same Filter e DD 30kHz Filter e 0 01 30kHz frequency Calculate e RITS V alue Calculate e RIMS S alue Weighted Value in 96 fv Sheu NE 00 Y Automatic or Manal measurement scale View Field strength h Intern 3 7j ae proportion a value In the Weighted or Normalized measurement e Eredar 8 WT mode when Manual Range is selected v Auterange by unchecking Auto Range it is possible TENS zi ROS DEUS eius to select the range manually from Cal 1 Frequency 60Hz Hope Frequency amp lHz Hope the most sensitive to the least sensitive Filter e 0 01 30kHz Filter e 0 01 30kHz Cal 5 or Cal 6 Calculate e RIMS value Calculate e RMS alue gt gt 7 6 PARAMETERISING OF THE CURRENT CONFIGURATION During a measurement it is possible change the parameters of the configuration used by selecting one of the Parameterising menus using the Right and Left direction keys These modifiable parameters are identified by black triangles pointing down and the menu selected is identified by a dotted border Field strength M Inter 3m 1 200 71 A Dn4i4 1089 i OSes Frequency 6 amp 0 Hz Filter e 0 01 30kHz Calculate e
34. ric fields are measured by the external isotropic electric field probe EF 400 which has an internal NIMH rechargeable battery its sensitivity range can be configured remotely via a 5m optical fibre change of range Diracsian ef De measure X xb This probe which is spherical and 80mm in diameter senses without deformations the 3 components of the electric field Ex Ey and Ez in a system of orthogonal axes x y and z The 3 components are measured by three orthogonal antennas mounted in a spherical enclosure as shown by the installation diagram opposite A few precautions must be taken to avoid introducing errors when measuring an electric field The shape of the housing in which the measuring antennas are enclosed can have a large effect on the electric field to be measured l2 3mrmzE inno ng Tie paka For example the 6 faces and 8 edges of a rectangular or cubic housing induce distortions in the measured electric field and so systematic measurement errors Again any conductor near the measurement point such as metallic parts or even the human body modifies the electric field and so causes measurement errors Three important precautions have been taken to eliminate these sources of large errors 1 The housing of the EF 400 electric field probe is spherical so as not to induce modifications in the electric field to be measured 2 The measurement is made with the EF 400 probe placed on an insulating support tripod provi
35. ries 7 2V bsp 6 8V min Battery life 6 Eo l L Em Dimensions 425x35 18mm 425x35 118mm 316 x 35mm mpm See position of internal probe in the unit pages 6 and 7 1 of the reading from 0 to 50 C 2 with Wide Band Filter 2 kHz to 400 kHz with High Pass Filter 3 of the reading at 23 C 3 C 4 of full scale between 0 and 50 C 5 Band 1 10 Hz to 3 2 kHz 5 Hz to 3 2 kHz Band 2 RMS 2 kHz HP 2 kHz to 400 kHz Band 3 RMS wide band 5 Hz to 400 kHz 6 Precision at 23 C 3 C and 50 15 HR 3 of reading 6 least significant digits in Band 1 from 16 Hz to 2 5 kHz 5 96 of reading 6 least significant digits in Band 2 from 10 kHz to 100 kHz with E 4 V m 5 96 of reading 6 least significant digits in Band 3 from 16 Hz to 100 kHz with E 4 V m in permanent use in permanent recording mode with a measurement interval of 1mm Charging time 10 to 14 h 0 In conformity with the requirements of standards DIN VDE 0848 1 16 6 7 50 60 83 3 150 180 250 300 400 Hz 5 OPERATING PRINCIPLE The C A42 fieldmeter has an internal isotropic magnetic field measurement probe and can use one of the four additional isotropic measurement probes optional MF05 MF400 and MF400 H for the magnetic field EF400 for the electric field Remark The instruement must be switched off when an external probe is connected or disconnected The frequency
36. rigger w auto Time ls BY Acoustic confirmation Measuring point Increment inui Top left 4 000 Down right 8 3 APPLICATION SOFTWARE LOG 42 The C A 42 is delivered as standard with a CD containing its LOG 42 specific application software used to import process and save the measurement files stored in the fieldmeter on a PC The processing consists essentially in filtering the input files corresponding to the data saved in the fieldmeter in other words in selecting and ordering the parameters and the data to be kept in the output file for post processing 8 3 1 INSTALLATION Place the CD in the drive of the PC and if installation does not start automatically start it manually by double clicking on Install exe then follow the instructions given by the successive screens 8 3 2 USE The procedures below are given as examples to help you use the LOG 42 software to refine your understanding of the philosophy of use of this software refer to its help function 8 3 5 LANGUAGES The LOG 42 displays its messages in the leading european languages French English German and Italian To choose a language in the File Option General menu of the LOG 42 choose the desired language 8 3 4 CONFIGURATION FOR COMMUNICATION For communication to be established between the PC and the C A 42 both instruments must be configured in the same way speed and protocol To ensure this check that the C A 42 is in f
37. riggering mode can be selected from the Visu menu see section 3 2 3 page 31 7 5 SELECTION OF A DISPLA Y MODE Measurement of field with X Y and Z components Field strength Inter DE WW AT proportion ee 1 200 WT The X Y and Z components of the main value pen ed displayed correspond to the calculation mode Xu bh a IUS LE ETE 414 V 10859 0258 selected e g RMS Val and depend on the Frequency 61H Frequency 6 amp 0 Hz frequency range chosen Filter e 0 01 30kHz Filter e 0 01 30kHz See selection modes page 43 Calculate e FMS alue Calculate e EMS alue mn Measurement of field with Min Max and Mean values System MEE Field strength M Intern B 7 eve proportion 1 Min Max Mean value 1 1 AS The Min Max and Mean values of the main value V B WT displayed correspond to the calculation mode wi 1 007 oT Min 1 133 Mani 1 247 Meam 1 188 Selected e g Effective val and depend on the frequency range chosen e g 0 01 to 30kKHz Frequency 60 Hz Ho 56 Frequency 61 Hz Ho Ge See selection modes page 21 Filter e 0 01 30kHz Filter e 0 01 30kHz Calculate e RMS alue Calculate e EMS alue Y Measurement of field with of field with normaliezd value System MET PE ee eM N this measured value Visu Weighting operating mode the value displayed in 96 is 1 v Min MassMean value 1 1 98 obtained by calculating the ratio of the amplitude RE E WT of the component et the predominant f
38. s These checks require the use of metrological means this is because in particular in the case of the electric field its propagation is unpredictable and incalculable because of the extent to which it depends on the environment presence of metallic structures relative humidity of the air nearby plants vegetation etc The C A 42 fieldmeter was developed specifically to meet this need to measure low frequency electric and magnetic fields from O to 400 kHz depending on the measuring probe used and to compare the measured values with the requirements of the European directives and world standards which are stored in its memory The measurements made by the C A 42 RMS or peak values and their components along three orthonormalized reference axes are displayed either as absolute values V m or T multiples and sub multiples or in normalized form percentage of the reference values prescribed by the stored standards These measurements can be made for public and private sector applications and for the industrial testing of the conformity of electrical devices In addition to absolute and relative measurements the C A 42 has two functions that are very useful for analysing the magnetic and electric fields measured an Oscilloscope function that displays variations versus time and a Frequency Analysis function FFT that displays the harmonic and non harmonic components of the signal 2 APPLICATIONS Work centres Measurement of el
39. se 29 3 1230 WIEN T l 1 61 61 9 61 Fax 1 61 61 9 61 61 Schweiz Einsiedlerstrasse 535 8810 HORGEN T l 01 727 75 55 Fax 01 727 75 56 UK Waldeck House Waldeck Road MAIDENHEAD SL6 8BH T l 01628 788 888 Fax 01628 628 099 Liban P O BOX 60 154 1241 2020 Jal el dib BEYROUT T l 961 1 890 425 Fax 961 1 890 424 China Shanghai Pujiang Enerdis Inst CO LTD 5 F 3 Rd buildind n 381 Xiang De Road 200081 SHANGHAI T l 021 65 08 15 43 Fax 021 65 21 61 07 USA d b a AEMC Instruments 200 Foxborough Blvd Foxborough MA 02035 T l 508 698 2115 Fax 508 698 2118 190 rue Championnet 75876 PARIS Cedex 18 FRANCE T l 33 0 1 44 85 44 85 T lex 269816 Fax 33 0 1 46 27 73 89
40. ses on which they are installed Just how far depends on their design These electromagnetic fields may so perturb the operation of electrical devices nearby as to make normal use of them impossible These systems are then said to be electromagnetically incompatible The strengths of the radiated magnetic and electric fields in the vicinity of an electrical or electronic device must accordingly be measured when a new system is installed nearby In addition to the purely technical problems of electromagnetic compatibility between instruments and machines more and more consideration must be given to the effects of electromagnetic fields on the human body and even on animals in particular care must be taken to ensure that people living and working near these electrical devices are not exposed to fields liable to impair their health permanently or even briefly To ensure this European directives and world standards IEC EN DIN UTE VDE BGV ICNIRP have been prepared to standardize tests in the fields of Electromagnetic Compatibility and of Protection of Individuals the standards currently in use in Europe include VDE0848 prEN50366 BGV B11 ICNIRP 26BimSchv etc These standards set maximum acceptable or reference levels which include a safety margin with respect to the known limits In practice the strengths of electric and magnetic fields must be measured to verify the compliance of the installed systems with these safe limit
41. simultaneously then the right hand key of the drop down menu keypad for 1 to 2 seconds The C A 42 is then reset the content of the memory is preserved and measurements resume normally If the malfunction recurs after a reset return the instrument to the manufacturer for repair Metrological check As with all measuring and testing instruments a periodic check is necessary For checks and calibrations of your instrument contact our COFRAC accredited metrology laboratories or a MANUMESURE agency Information and coordinates on request Tel 02 31 64 51 43 Fax 02 31 64 51 09 Repair under warranty or not Send your instruments to one of the MANUMESURE regional agencies which are approved by CHAUVIN ARNOUX Information and coordinates on request Tel 02 31 64 51 43 Fax 02 31 64 51 09 Repair outside of mainland France For any repair whether or not under warranty return the instrument to your distributor 10 TO ORDER y c oAB u BMEEEEMMTT TU o CA42 CFG Includes a C A 42 fieldmeter with an elastomer protective enclosure a rechargeable battery pack a 230 V battery charger a RS 232 cord a Trigger cord an output voltage cord a carrying bag LOG 42 application software and a User manual FR and UK Options Oscilloscope Function contact us Frequency analysis function FFT EE contact us Certificate of calibration with measurement readings one certificate per probe contact us Accessories Mag
42. ssions as per EN 61 326 1 Immunity as per EN 61 326 1 Electrical safety Not applicable the measurement involves no contact and no line power Dimensions 266 x 144 x 60 mm Weight 950 g This list is not binding and is subject to change 4 1 1 OPTION 1 OSCILLOSCOPE FUNCTION This function displays the time variations of one of the components x y or z of the measured electric or magnetic field or of the largest of the 3 components The oscillogram displayed with an automatic or manual amplitude scale can be triggered in one of 3 modes Automatic One shot or External Time base Adjustable from 2 ms to 400ms div according to the probe used Can be extended to 0 1 ms div using the Zoom in Hold Slope measurement mode Synchronization Adjustable trigger level and polarity External trigger TTL Level Hold Run function Bistable function The Hold function makes it possible to use 1 or 2 cursors to determine il coordinates of a point nT s or V m s multiples and submultiples or the slope between me positions of the 2 cursors mT s uT s etc Zoom Reduction of the time base scanning rate in RUN mode 4 1 2 OPTION 2 FREQUENCY ANALYSIS FFT Displaying the frequency distribution is very useful as a way to analyse the harmonic and non harmonic components of a composite signal The C A 42 calculates the frequency distribution of the signal representing one of the co
43. val peak val Phase global bistable function peak val Hold Run Choice of filtering Frequency range in which the measurement is made 7 1 3 DISPLAY OF THE TIME VARIATIONS OF A FIELD OSCILLOSCOPE FUNCTION internal probe used Operation on internal battery EE partially discharged pe Variations of the measured field H versus time 7 r evel irection of trigger edge _Drevton ot wooer edge Line d z4msz Level Time or slope between 2 cursors PMSvaue 0 kis value 1 D31uT i On figured measurement function Oscilloscope Adjustment of the trigger level Coordinates of the marked point Change of zoom value 2 Selection of the display mode Hold or Run Change of measurement scale 2 This function displays the time variations of one of the components x y or z of the measured electric or magnetic field or of the largest of the 3 components lts time base is adjustable from 0 5 ms to 100 ms div according to the probe used the level and polarity of the trigger signal are adjustable It is possible to trigger the measurement externally using the External Trigger mode which can be configured from the Visu mode configuration menu In Hold mode two cursors are available the first gives the coordinates of a point in nT s or V m s multiples and submultiples the second determines
44. xternal charger Triple function 12 pole circular receptacle 1 Connection of the EF400 electric field probe 2 Analogue voltage output by a specialised cord with the following contact allocations Vx on 1 Vy on 2 Vz on 3 Gnd on 4 3 External Trigger input by specialized cord for Oscilloscope function only TTL levels on pin 3 Gnd on 4 Warning The instrument must be switched off when an external probe is connected or disconnected 8 pole circular receptacle for connecting the MF 400 MF 400 H and MF 05 magnetic field measurement probes Warning The instrument must be switched off when an external probe is connected or disconnected 5 pole circular receptacle for RS 232 link with a specialised cord 3 BOTTOM 1 Reset button see chapter 9 Maintenance page 50 2 Internal battery pack Consists of 5 2300 mAh NiMH AA modules 3 Protective cover of the internal battery pack The protective cover can be remmoved by pressing simultaneously on its two slotted sides For the replacement of the battery pack see the maintenance chapter 4 TECHNICAL CHARACTERISTICS 4 1 C A 42 FIELDMETER The C A 42 fieldmeter has an internal isotropic magnetic field measurement probe see 10 and can use one of the following external isotropic measurement probes optional MF 05 MF 400 and MF 400 H for the magnetic field EF 400 for the electric field The frequency ranges dynamic ranges scales and measurement accuracies
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