C.A 6545/6547 - Chauvin Arnoux
Contents
1. E Pr 17 5 2 Insulation measurement rna rr car KR nad eu XX a tae Fdo EFE aa Y REB 17 5 3 C pacitance measurement 18 5 4 Residual and leakage current 18 6 MEMORY MASSPAPR NINITCDTA M 19 6 1 5 232 Em 19 6 2 Recording PLAYBACK of stored values MEM MR key 20 6 3 Printing measured values PRINT PRINT MEM key 6547 20 6 4 Printing with series parallel acdatpter ke 22 7 2 gt 2 2 ASE Sannn 23 7 1 ER 23 7 2 Characteristics per pe eie bee 23 7 3 POWGSESUDDIY ess PEE 26 1 4 Environmental paramleters 2 raa inea ane Ea Dad ru Pa ERE E LE E E XN M2. 2 etti nA COMMONS ised au ertet reyes Date of next test After a Programmed time test other results are printed intermediate samples Time Resistance Voltage 00 30 35 94 GOhm 1005 V 01 00 42 00 GOhm 1005 V 01 30 43 50 GOhm 1005 V etc A line for the signature of the operator appears at the end of printing 6 3 2 PRINTING OF STORED DATA PRINT MEM KEY This is used to print the content of the unit s RAM The small display indicates 01 01 for the OBJ TEST number print starting address The main display indicates the last record in the memory end print address For example 12 06 12 above OBJ symbol flashes and the normal modification procedure must be used f and A keys to define the start end of printing addresses To exit without printing change the position of the rotary switch To start printing press again on the PRINT key To stop printing change the position of the rotary switch The printing of each data group is limited to the main results Example CHAUVIN ARNOUX C A 6547 Instrument number 000 001 INSULATION RESISTANCE TEST PURPOSE 01 TEST 01 BIS ele del societies e Date aide 31 03 1998 Starting time 13h35 Running time 16 min 27 sec Temperature C OF Relative humidity 96 Test voltage
3. 5000 V Insulation resistance R 3 85 TOhm RTE 1 273 2 382 EIER SET l residual acie ne nA COMMENTS ern a etre rero ren Date of next test LEE ER INSULATION RESISTANCE TEST PURPOSE 01 TEST 02 t Date uses 31 03 1998 Starting time 15h10 Running time 15 min 30 sec Temperature Relative humidity 96 Test voltage 1000 V Insulation resistance R 385 GOhm DARE kisia 1 234 PIP 2 345 Bp Re LE COMMENTS acere r Date of next test A line for the signature of the operator appears the end of printing 6 4 PRINTING WITH SERIES PARALLEL ADAPTER Connect the RS232 null modem cable to the C A 6547 Connect this cable to the adapter then connect the adapter to the printer cable Turn on the printer Turn on the C A 6547 Set Parallel in SET UP for the baud rate setting see S 4 7 2 gus ON Ss CAUTION This adapter is designed to be used with the C A 6545 and the C A 6547 and cannot be used with any other applications 7 SPECIFICATIONS 7 1 REFERENCE CONDITIONS Influence quantities Reference values Relative humi
4. K 04 per EN50102 7 7 VARIATIONS IN OPERATING RANGE Influence Range of influence Quantity men O O quantity influenced 5 V 1 pt 2 pt V 0 15 10 C 0 3 10 C 1 pt Temperature Tas 0 20 10 1 10 2 pt 196 42 pt Humidity 10 80 HR MO 10 kQ 40 GQ 196 45 pt MO 40 GQ 10 TO 1596 45 pt n Frequency 15 500 Hz 0 596 1 pt es voltage superimposed 0 20 U 0 1 Un 0 5 Un 5 pt 5 The terms DAR PI DD and the capacitance and leakage current measurements are included in the quantity 8 A Except for the fuse the instrument contains no parts that can be replaced by personnel who have not been specially trained and accredited Any unauthorized repair or replacement of a part by an equivalent may gravely impair safety 8 1 SERVICING 8 1 1 BATTERY RECHARGE If the _ symbol appears it is necessary to recharge the battery Connect the unit to the AC network using connector 6 the unit will automatically switch to battery charge and the LL symbol will blink bAt on the small display and chrG on the main display means fast charging in progress bAt on the small display and chrG flashing in the main display means slow charging the fast charge will begin when the temperature conditions are appropriate bAt on small display and FULL in the main display means that charging is completed The battery must be replaced by
5. Primary function gt Used to select a parameter for modification the active parameter flashes It may be modified using the A V key see 4 6 WB Secondary function SMOOTH Used to activate a digital filter for insulation measurements It affects only the display which is smoothed and not the measurements This function is useful in case of high instability of the displayed insulation values caused by a strong capacitive component of the part to be tested for example The time constant for this filter is approximately 20 seconds 4 6 A Y KEY This function is used to modify the flashing parameters displayed or to consult the R t values see S 4 3 In general two figures day month hour min sec OBJ TEST flash The A and V functions have a wraparound mode when the upper or lower modification limit is reached the parameter to modified automatically jumps to the other limit Primary function A A brief press increments the displayed number by one unit A longer pressure on this key will cause fast incrementation Secondary function V A brief press decrements the displayed number by one unit A long press will cause rapid decrementation Contrary to all the secondary functions of the other keys it is not necessary in this case to press the 2nd key each time to access the function W The symbol remains displayed and therefore valid for the function W only as long as the user does not deactivate i
6. 8 50 52 68 00 Fax 46 8 50 52 68 10 SCHWEIZ Chauvin Arnoux AG Moosacherstrasse 15 8804 AU ZH Tel 044 727 75 55 Fax 044 727 75 56 HH BOR RARI D CERE 381 573 530 Tel 86 21 65 21 51 96 Fax 86 21 65 21 61 07 ESPANA Chauvin Arnoux Ib rica S A C Roger de Flor 293 1a Planta 08025 Barcelona Tel 90 220 22 26 Fax 93 459 14 43 MIDDLE EAST Chauvin Arnoux Middle East P O BOX 60 154 1241 2020 JAL EL DIB Beirut LEBANON Tel 01 890 425 Fax 01 890 424 USA Chauvin Arnoux Inc d b a AEMC Instruments 200 Foxborough Blvd Foxborough MA 02035 Tel 508 698 2115 Fax 508 698 2118 http www chauvin arnoux com 190 rue Championnet 75876 PARIS Cedex 18 FRANCE T l 33 1 44 85 44 85 Fax 33 1 46 27 73 89 info chauvin arnoux fr Export T l 33 1 44 85 44 38 Fax 33 1 46 27 95 59 export chauvin arnoux fr
7. 9 peci 9 E 3 999 MO Resolution 1k kQ ok 5 3 1000 V 2500 V 2500 V 500 V 1000 V 2500 V 5000 V 5000 V 5000 V Specified measurement 1000 999 4 00 39 99 40 0 399 9 1000 199 2 000 range GO GO 3 999 Accuracy 5 3 pt 15 10 pt Accuracy in variable mode To be interpolated between the values of the table above and per S 7 2 2 Measurement of DC voltage during insulation test Specified measurement range 40 0 99 9 V 100 1500 V 1501 5100 V Resolution Dy 1V Accuracy gt 1pt Measurement of DC voltage during discharge phase of an insulation test Specified measurement range 25 5100 V Typical sttling time for the measurement according to components tested 0 03 Un These values include the influences of the charging of the capacitive component of the automatic range system and to the test voltage control Non capacitive With capacitance of 1 uF Test voltage Load unsmoothed L L smoothed nn 1NO0 MO mv V 100 1000 V 100 2500 V 100 5000 V 100 B Typical discharge time for a capacitive component to reach 25 Initial voltage 500 V 1000 V 2500 V 5000 V Discharge time C in pF C in cx7s Typical change curve for test voltages according to load Range 500 V 600 500 40
8. lead fitted with a HV rear pick up plug and a HV alligator clip black 12 m mains power lead W 1 cable with rear pick up plug 0 35 m 8 simplified user s manuals one per language 8 user s manuals on CD one per language 10 1 ACCESSORIES CA 6547 E P01101938A Serial printer C A O EE P01102903 Serial paralleladapter EE P01101941 Set of 2 HV cables with safety connector 4mm red guarded black 3M sene P01295231 2 alligator clips red black eod ed a even P01295457Z Set of 2 test contact tips red black edo dH ERES EE P01295458Z HV cable with safety connector 24mm blue 3m alligator clip blue P01295232 HV cable with alligator clip blue 8 mort 2 ter Fertur detenta tm aea den bride peter dee Eee e P01295214 HV cable with alligator clip red 8r orig oui erat eterni tienen turca cca pa ces ed P01295215 HV cable with alligator clip and earth pick up plug 8 m long P01295216 cable with alligator clip blue 15 m lOng 1 1 citet ie te pini beo pepe Re its e du exo ku Red eR P01295217 cable with alligator clip red 15 1 enero een tap ruo oae ea he ke ELO no ded dex P01295218 HV cable with all
9. on the main display using the R DAR PI DD key This key may also be used before the triggering of the measurement see 8 4 3 If the Programmed time test mode was selected the R t key is used to access all the intermediate results stored automatically see 4 2 and 4 3 If the ALARM function is activated a buzzer will sound as soon as the measurement exceeds or falls below the programmed threshold in the SET UP configuration menu see 4 4 Display of values after a measurement The indications below may be displayed R DAR PI DD key V TIME key Aa Ap Small display Main display Small displ if the MR key is activated C A 6547 Resistance duration m ay in sec date time test voltage OBJ TEST DAR duration min date time test voltage OBJ TEST PI duration min date time test voltage OBJ TEST DD duration min date time test voltage OBJ TEST Current duration min Capacitance R t duration min last test voltage 1 The value of DD is displayed only one minute after the measurement stops 2 The capacitance measurement uF is displayed only after the measurement stops and the circuit has been discharged 4 SPECIAL FUNCTIONS 4 1 2nd KEY This key is used to select the secondary functions of the function keys It is always related to the 2 symbol This symbol disappears as soon as the selected function key is pressed unless the W key is activated In this case it disappears only
10. to Parallel in SET UP and use the series parallel adapter sold optionally connect in series the cable delivered adapter Centronics printer cable Two print modes are available Printing of the present measurement result PRINT m Printing of stored data PRINT MEM The COM symbol in the display indicates data transmission to the printer 6 3 1 IMMEDIATE PRINTING OF THE MEASUREMENT PRINT KEY Following a measurement or after access to the MR mode Memory Recall the PRINT function is used to print the measurement results As soon as the key is used it prints m 1 group of measurements U R DAR PI DD date time for a normal test a the R t values if the Programmed time test function was activated To stop printing change the position of the rotary switch Depending on the function used the following models are obtained W Insulation Measurements CHAUVIN ARNOUX C A 6547 Instrument number 000 001 INSULATION RESISTANCE TEST PURPOSE 01 TEST 01 printed only in MR mode ID6SCHIDLOD geed teeter Date ausis 31 03 1998 Starting time 14h55 Running time 15 min 30 seconds Temperature uer Relative humidity 96 Test voltage 1000 V Insulation resistance R 385 GOhm H 1 234 sted atest eis 2 345 EIER ur out e eror
11. 0 300 200 100 0 01 0 1 1 Range 1000 V 1200 4 1000 800 600 400 200 0 01 0 1 1 10 Range 2500 V 3000 2500 2000 1500 1000 500 0 01 0 1 1 10 5000 6000 5000 4000 3000 2000 1000 0 01 0 1 1 10 WB Capacitance measurement after discharge of tested component Specified measurement range 0 005 9 999 uF 10 00 49 99 uF Accuracy 10 1 pt Leakage current measurement Specified 0 000 to 0 251 to 10 00 to 100 0 to 1 000 to 10 00 to 100 0 to 1000 to measurement range 0 250 nA 9 999 nA 99 99 nA 999 9 nA 9 999 99 99 999 9 3000 Resolution 10 10 100 100pA 10 nA 100nA nA xS W Calculation of terms DAR and PI Specified range 0 02 50 00 W Calculation of term DD Specified range 0 02 50 00 7 3 POWER SUPPLY B The equipment power supply is obtained from Rechargeable NiMh batteries 8 x 1 2 V 3 5 Ah External recharge 85 to 256 V 50 60 Hz Minimum operating time per IEC 61557 2 Test voltage 100
12. 0 V 2500 V 5000 V Number of 5 s measurements at nominal load with 25 s pause 6500 5500 4000 1500 between measurements Average operating time Assuming 1 minute DAR measurements 10 times a day and 10 minute PI measurements 5 times a day the operating time would be 15 workdays or 3 weeks Recharging time 6 hours to recover 10096 capacity 10 hours if the battery is completely run down 0 5 hours to recover 1096 capacity charge life 2 days approximately Note It is possible to recharge the batteries while performing insulation measurements provided that the values measured are greater than 20 In this case the recharging time is longer than 6 hours and depends on the frequency of the measurements 7 4 ENVIRONMENTAL PARAMETERS W Range of use 10 to 40 C during battery recharging 10 to 55 C during measurement 10 to 80 RH Storage 40 to 70 C 10 to 90 RH Altitude lt 2000 m 7 5 CONSTRUCTION SPECIFICATIONS W Overall dimensions of the unit L x W x 270 x 250 x 180 mm W Weight approx 4 3 kg 7 6 COMPLIANCE WITH INTERNATIONAL STANDARDS W Electrical safety as per EN61010 1 EN61557 Dual insulation Pollution level 2 Measurement category Ill Max voltage relative to earth 1000 V 2500 V in measurement category 1 7 6 1 ELECTROMAGNETIC COMPATIBILITY Emissions and immunity in an industrial setting compliant with EN61326 1 7 6 2 MECHANICAL PROTECTION IP 53 per EN60529
13. D here is the measurement procedure 8 DAR press START the DAR symbol flashes and the display indicates as long as the calculation of the coefficient is impossible t 1 min N17 For example DAR After 1 min the measurement stops the DAR symbol becomes steady and the main display automatically shows the DAR value if the calculation was possible The R DAR PI DD key may be used during and after the measurement to see the insulation measurement performed but it does not provide the PI value since the measurement did not last long enough press START the PI symbol flashes and the display indicates as long as the calculation of the coefficient is impossible t 10 min N17 For example Pl After 10 min the measurement stops the PI symbol becomes steady and the main display automatically shows the PI value if the calculation was possible During and after the measurement the R DAR PI DD key is used to display the DAR after 1 min the PI after 10 min and the insulation measurement DD press START the DD symbol flashes and the display indicates as long as the calculation of the coefficient is impossible insulation measurement time 1 min For example DD ZEN 1 min after the measurement stops the DD symbol becomes steady the display automatically shows the value of DD if the calculation was possible Therefore
14. DAR if measurement gt 1 min m PI if measurement gt 10 min a DD can only be calculated 1 mn after the end of the insulation measurement and circuit discharge and only if it was selected before beginning the measurement Capacitance in only after the stopping of the measurement and the discharging of the circuit Leakage current circulating in the installation in or nA Insulation resistance in MO or GO or TO Note During the measurement the DAR value is not available if DD was preselected before the measurement During the measurement the value PI is not available if DAR or DD was preselected before the measurement Automatic DAR or PI measurement If the R DAR PI DD key is actuated during the voltage measurement before the start of a measurement the display is as follows lt gt Bises amp T and the value of the input current between terminals and is indicated Note The input current may be a depolarisation current resulting from an earlier insulation measurement It is recommended to start a new DAR and PI measurement after the current has dropped to a negligible value on the order of 100 pA to avoid variations on these measurements 3 For the PI calculation the 10 and 1 minute times can be modified in the SET UP menu so to adapt to any normative changes or specific applications Depending on the choice DAR PI or D
15. EE pad 27 9 COnstruction Specifications tM D 27 7 6 Compliance with international 27 Ke Nariations in ap ha Aap Ee pee ceci Leer Aven 28 BET Le E E 29 tme E E 29 29 pM LII MEET T Ere 29 9 00 30 10 TO ORDER Re 31 10 1 et uD 31 10 2 Spare PANS DM O 31 1 PRESENTATION 1 1 THE MEGOHMMETERS The C A 6545 and C A 6547 megohmmeters are portable units fitted into a rugged construction site casing with cover operating on battery or line power They are used to measure W voltages W insulation W capacitance These megohmmeters help to ensure the safety of electrical installations and equipment Their operation is controll
16. LARM Limit for 2500 V 10 TO ALARM 3 press ALARM Limit for 5000 V 10 TO ALARM ALARM 4 press 300 k 10 TO and Limit for Var 50 5000 V ALARM 5 press Set ALARM lt 10k 10 TO and gt lt d hour 00 23 V TIME E 12 55 minute 00 59 V TIME 2 press 17 03 2000 dd mm yyyy V TIME 39 press USA Euro USA Euro MEM then MEM then gt and V and OBJ TEST Selective deletion of memory MEM 2 s FrEE OCC Baud PRINT 9600 bAUd Lr o min sec 00 30 59 59 00 05 30 00 30 k 2 TO and 100 k 4 TO and 300 k 10 TO and gt lt Time Date Europe version gi Version USA Europe 4 WA lt lt 00 99 m l m 300 9600 or parallel On OFF 2 Auto cut off Ka 279 press OFF Configuration by default pes Dielectric test voltage 4 press SEt 100 V V 40 5100 V Disturbance Limit voltage 8 5 press 0 03 U 0 03 0 10 0 20 v On OFF The values shown in this table in the main display and small display columns are default values programmed at the factory In case of mistaken modification it is possible to restore them see 4 7 3 4 7 1 MEMORY DELETION In SET UP press the MEM key a The MEM symbol flashes ALL is shown flashing on the small display m The main display indicates cLR To delete the entire memory press again on the MEM key for 2 secon
17. MEGOHMMETERS CHAUVIN ARNOUX User s manual CHAUVIN ARNOUX GROUP Thank you for purchasing 6545 6547 megohmmeter To obtain the best service from your instrument read this user manual carefully W comply with the precautions for use WARNING risk of DANGER The operator must refer to this user s manual whenever this danger symbol appears Equipment protected by double insulation WARNING Risk of electric shock The voltage on the parts marked with this symbol may be dangerous For safety reasons this symbol is displayed when such a voltage is generated Earth The CE marking indicates conformity with European directives in particular LVD and EMC The rubbish bin with a line through it indicates that in the European Union the product must undergo selective disposal in compliance with Directive WEEE 2002 96 EC This equipment must not be treated as household waste Definition of measurement categories Measurement category IV corresponds to measurements taken at the source of low voltage installations Example power feeders counters and protection devices Measurement category lll corresponds to measurements on building installations Example distribution panel circuit breakers machines or fixed industrial devices Measurement category corresponds to measurements taken on circuits directly connected to low voltage installations Example power supply to electro domestic
18. Manumesure or by a repairer approved by CHAUVIN ARNOUX Changing the battery entails the loss of stored data Pressing on the MEM MR key then causes the display of OFF Proceed with a complete deletion of the memory in the SET UP menu see 8 4 7 1 to be able to use the MEM and functions again 8 1 2 REPLACING THE FUSE If FUSE G appears on the digital display you must change the fuse accessible on the front panel after checking that none of the terminals is connected and that the switch is on OFF For safety reasons this fuse must always be replaced by an identical model Exact type of fuse printed on the front panel label FF 0 1 A 380 V 5 x 20 mm 10 kA Note This fuse is in series with a 0 5 A 3 kV internal fuse active only in case of a major fault in the unit If after changing the fuse on the front panel the display still indicates FUSE G the unit must be returned for servicing see 8 8 3 8 1 3 CLEANING Disconnect the unit completely and turn the rotary switch to OFF Use a soft cloth slightly moistened with soapy water Rinse with a wet cloth and dry quickly with a dry cloth or forced air Do not use alcohol solvents or hydrocarbons 8 1 4 STORING If the instrument is left unused for a long time more than two months fully charge the instrument before using it again 8 2 METROLOGICAL CHECK AN Like all measuring and testing devices this instrument must be checked regularly This instrume
19. alue of the measurement is displayed on the main digital display and on the bargraph There is a beep every 10 seconds to indicate that a measurement is in progress If the voltage generated might be dangerous 120 V the symbol is displayed If during the insulation measurements an external voltage higher than the value defined by the relation below is detected the measurement is aborted The symbol flashes and the external voltage value is displayed on the small digital display U peak gt dISt 1 1 Un Note Adjustment of the 9154 factor optimises the measurement settling time If there is no parasitic voltage present the dlSt factor may be adjusted to the smallest value 0 03 to obtain the shortest possible settling time for the measurement If a significant parasitic voltage is present the dlSt factor may be increased so that the measurement is not interrupted or even made possible in the first place This means optimisation of the settling time in the presence of the parasitic voltage If the measurements are unstable it is possible to use the SMOOTH function see S 4 5 Pressing on the V TIME key during the measurement alternately displays the measurement time and the exact voltage generated on the small display see S 4 2 The stopping of the measurement is caused by pressing the STOP key After the measurement stops the main result remains displayed It is possible to scroll through all the other results available
20. devices and portable tools PRECAUTIONS FOR USE This device is compliant with safety standard IEC 61010 2 030 and the leads are compliant with IEC 61010 031 for voltages up to 1000 V with respect to earth in category Ill Failure to observe the safety instructions may result in electric shock fire explosion and destruction of the instrument and of the installations The operator and or the responsible authority must carefully read and clearly understand the various precautions to be taken in use Sound knowledge and a keen awareness of electrical hazards are essential when using this instrument If you use this instrument other than as specified the protection it provides may be compromised thereby endangering you Do not use the instrument on networks of which the voltage or category exceeds those mentioned W Do use the instrument if it seems to be damaged incomplete or poorly closed W Before each use check the condition of the insulation on the leads housing and accessories Any item of which the insulation is deteriorated even partially must be set aside for repair or scrapping Use personal protection equipment systematically Use only the accessories delivered with the instrument Respect the value and type of the fuse see 8 1 2 to avoid damaging the instrument and cancelling the warranty W Setthe switch to OFF when the instrument is not in use W The battery must be charged before metrologica
21. dielectric absorption ratio DAR calculation of polarisation index Pl or Dielectric Discharge test DD After or during the measurements display of R DAR PI DD and capacitance uF R t Secondary function display no display of intermediate values of insulation resistance test voltage and time stamp following a programmed time test the V TIME and A V keys may also be used V TIME Primary function In insulation display of elapsed time from the beginning of measurement then of exact voltage generated In MR memory recall mode display of the date and time of the stored measurement of the exact test voltage and of the memory address OBJ TEST Secondary function activation deactivation of programmed time test mode Primary function ON OFF of display backlight ALARM Secondary function activation deactivation of alarms programmed in SET UP Primary function Select a parameter for modification SMOOTH Secondary function ON OFF for display smoothing during insulation measurement Primary function increments the displayed flashing parameter Browse the list of intermediate insulation results in the R t function Secondary function decrements the flashing parameter displayed Browse the list of intermediate insulation results in the R t function If the A and V keys are pressed and held the parameter changes faster On the C A 6547 only PRINT MEM Backlit liquid crystal display Socket for connection to AC net
22. dity 45 to 55 96 RH Supply voltage 9to12V Sie 7 2 CHARACTERISTICS PER FUNCTION 7 2 1 VOLTAGE W Characteristics 1 0 99 9 V 100 999 V 1000 2500 V 2501 4000 V Frequencyrange range Frequency ranget DC and 15 500 Hz a Input impedance 750 kO to 3 MO depending on measured voltage 4 Above 500 Hz the small display indicates measured voltage and the main display gives only a rough indication of the peak value of the Measurement category 1000 V CAT III or 2500 V CAT transients lt 2 5 kV 7 2 2 INSULATION RESISTANCE Method Voltage current measurement per IEC 61557 2 W Nominal output voltage 500 1000 2500 5000 or adjustable from 40 V to 5100 V W Adjustment step in variable mode 10 V from 40 V to 1000 V 100 V from 1000V to 5100 V Off load voltage lt 1 02 x Un 2 Un 296 in variable mode Nominal current gt 1 mAdc Short circuit current lt 1 6 mA 5 Charging current into capacitive component 3 mAdc approximately when starting measurement m Maximum acceptable voltage during measurement Upeak 1 1 9151 Un 60V with dISt 0 03 0 10 or 0 20 Measuring ranges 500 V 10 kQ 1 999 1000V 10 3 999 TQ 2500V 10 9 99 5000V 10 9 99 TO Var 50 V 5000 V to be interpolated between the fixed values above Ge 10 999 4 00 39 99 40 0 399
23. ds a The MEM symbol is displayed steady a ALL is shown constant on the small display The main display indicates FrEE To delete the content of a specific OBJ TEST Select the number using keys gt and A V FrEE or OCC is shown on the main display Press again on the MEM key for 2 seconds to delete The OBJ TEST is indicated on the small display The main display indicates FrEE 4 7 2 OUTPUT IN BAUDS RS 232 In SET UP press the PRINT key The main display indicates the output in bauds i e 300 600 1200 2400 4800 9600 or Parallel On the small display baud appears The value may be modified using the keys A and V The Parallel display means that the parallel mode is selected to print on parallel printers via the serial parallel adapter RS 232 Centronics 4 7 3 DEFAULT CONFIGURATION OF THE DEVICE In SET UP 3 press on the X key m The small display shows SEL main display shows flashing Press on START to reconfigure the device using the default parameters see previous table 4 7 4 VOLTAGE DISTURBANCE LIMIT In SET UP 5 press on the e key a The small display indicates dlSt m The main display shows 0 030 flashing a Modify this value if necessary using the A V key choice between 0 10 0 20 0 03 Note This adjustment provides the best compromise between the measurement settling time and the presence of external parasitic voltages S 3 2 If no parasitic voltage is present th
24. e the insulation measurement or the results of these measurements A Voltage generated dangerous U gt 120 A External voltage present Activation of the test mode or on the SET UP position of the switch clock adjustment 6547 Flashes for each sample recorded nd 2 Indicates that the secondary function of a key will be used Indicates that the battery is low and must be recharged see 5 8 The voltage is displayed on the small digital display for 2 seconds when the device is switched on The main display indicates bat e The audio warning buzzer is activated Indicates that the automatic power save mode function is deactivated SMOOTH Smoothing of insulation measurement display REMOTE Remote control via interface C A 6547 In this mode all keys and the rotary switch are inactive except the OFF position FUSE G Indicates that the fuse of input is defective 3 MEASUREMENT FUNCTIONS 3 1 AC DC VOLTAGE Any rotation of the switch on an insulation position sets the unit to automatic AC DC voltage measurement The voltage is measured continuously and indicated on the small display The start of the insulation measurements is inhibited if an excessively high external voltage is present on the terminals before pressing START Also if an excessively high parasitic voltage is detected during these measurements they are automatically stopped and the vo
25. ed by microprocessor for the acquisition processing measurement display storage and printing of results C A 6547 They offer a wide range of advantages such as W digital filtering of insulation measurements W automatic voltage measurement W automatic detection of the presence of AC or DC external voltage on terminals before or during the measurements which inhibits or stops the measurements threshold programming to trigger alarms using audible beeps the timer for measurement time checks protection of the device by fuse with detection of defective fuses operator safety by means of automatic discharge of the residual high voltage on the equipment tested automatic power save mode of the device to save battery power indication of battery charge condition a large backlit LCD screen with a wide range of indicators making it very easy for the user to read The C A 6547 integrates the following additional functions W Memory 128 kb real time clock and serial interface PC control of the device using PC software optional Printing in RS 232 or Centronics mode 1 2 THE ACCESSORIES FOR THE C A 6547 ONLY 1 2 1 PC SOFTWARE OPTIONAL This PC software is used for W recovering stored data plotting the insulation resistance versus the test voltage application time R t printing customised test protocols in accordance with user needs creating text files to use spreadsheets Excel configuring and con
26. eft hand bargraph arrow flashes a When recording is completed the bargraph disappears 6 2 2 SECONDARY MR FUNCTION The MR function is used to recall data from the memory W When the key is activated the MR symbol is displayed not flashing The small display indicates the last occupied OBJ TEST for example 02 11 11 above the TEST symbol is flashing the normal modification procedure with keys gt and must be used to select the desired OBJ TEST If a new OBJ is selected TEST is automatically set to the largest stored number The values at the address selected by OBJ TEST are shown in the main display Additional results can be viewed using the R DAR PI DD key W TheV TIME key is active and gives access to date time voltage duration and OBJ TEST number of each stored measurement If the recording selected by the OBJ TEST number corresponds to a programmed time test the R t values can be accessed by pressing the R t key see 4 3 To exit the R t mode and return to the normal memory recall condition OBJ TEST press the R t key again To exit the MR function press MR again or turn the switch 6 3 PRINTING MEASURED VALUES PRINT PRINT MEM KEY C A 6547 If you use a serial printer choose the appropriate communication speed in the SET UP menu between 300 9600 bauds then program the printer for the format used by the instrument see 8 6 1 If you use a parallel printer you must adjust the speed
27. if the 2nd key is pressed again or if other function keys are pressed This is used to rapidly decrement the parameters using the W key without having to press the 2nd key each time 4 2 V TIME O KEY W V TIME primary function This key is used to show all available secondary information on the small display both during and after measurement In the insulation measurement function Time elapsed since the beginning of the measurement a Measurement voltage n memory recall mode MR 6547 date time measurement voltage measurement duration and OBJ TEST number Secondary function Programmed time test The small display shows the measurement duration programmed in the SET UP the symbol Pressing the START key starts the measurement By default the measurement lasts 30 minutes but this value can be changed in the SET UP menu As soon as the measurement has started the small display decrements the remaining time When this time reaches zero measurement stops During the running of a programmed time test intermediate samples resistance voltage values as a function of time are automatically stored The time between samples is 30 s by default but this value may be changed in the SET UP menu The samples may be displayed using the R t function see 4 3 as long as a new measurement has not been launched They are erased at each new measurement They are automatically stored with the final value of the re
28. if the measurement lasts 1 minutes DAR if the measurement lasts 10 minutes PI and 1 minute after the end of the measurement DD Note If during the measurement of DAR PI or DD whether automatic or not there is a strong external disturbance or if the insulation resistance exceeds the device s measuring ranges the measurement of DAR or PI is aborted and the following is shown on the display NC 1 4N Lb 4 DAR 71 or PI S ZO xad 7 LS In such case the measurement provides no result for DAR or PI A capacitance parallel to the insulation resistance extends the settling times of the measurements This can affect or even inhibit the measurement of DAR or PI depending on the time set in SET UP for recording the first resistance value The following table shows typical values for the capacitance parallel to the insulation resistance at which a successful DAR or PI measurement is still possible The display of the DD value is unknown if C lt 1 nF or Idd lt 100 pA known and flashing if 1 nF x lt 10 nF and 100 pA x Idd lt 1 nA a known and steady if C gt 10 nF and Idd gt 1 nA with C measured capacitance and Idd current measured after 1 minute Secondary function R t The R t key is used to access the intermediate insulation resistance values measured as a function of time after a measurement in Programmed time test mode see 4 2 The time betwee
29. igator clip and earth pick up plug 15 m long P01295219 10 2 SPARE PARTS HV cables blue guarded black 8 P01295220 0 35 micord withirearplck Up Ee Te EE P01295221 IER Ree TOF ACCCSSOMES ER P01298061A Fuse FF 0 1 380 5 20 mm 10 kA set of 10 iei criteri teri rr ise eie dade cda cos P03297514 Battery 9 6 3 5 pug M P01296021 RS 232 cable to PC DB 9F DB 25E X2 sosiaa sasadiaan reani n riae Rhe Red pe eI Yu t3 EN SER e P01295172 5 232 cable to printer DB 9M NPON iius iode uod t nir inuentus rd aea dean near P01295173 Mains power supply Cable i det 01295174 GROUP CHAUVI ARN N OUX 02 2015 Code 689439D02 Ed 3 DEUTSCHLAND Chauvin Arnoux GmbH OhmstraBe1 77694 Kehl Rhein Tel 07851 99 26 0 Fax 07851 99 26 60 UNITED KINGDOM Chauvin Arnoux Ltd Unit 1 Nelson Ct Flagship Sq Shaw Cross Business Pk Dewsbury West Yorkshire WF12 7TH Tel 01924 460 494 Fax 01924 455 328 ITALIA Amra SpA Via Sant Ambrogio 23 25 20846 Macherio MB Tel 039 245 75 45 Fax 039 481 561 OSTERREICH Chauvin Arnoux Ges m b H Slamastrasse 29 2 4 1230 Wien Tel 01 61 61 9 61 0 Fax 01 61 61 9 61 61 SCANDINAVIA CA Matsystem AB Sj flygv gen 35 SE 18304 TABY Tel 46
30. is value will be chosen equal to 0 03 to obtain a rapid measurement settling time 4 7 5 AUTOMATIC MEASURING RANGE In the SET UP 6 press on the X key The small display indicates rAnG The main display indicates Auto Use the A V key to choose a fixed 1 2 or 3 on the main display or automatic Auto on the main display measurement range Note The fixed measurement ranges correspond to the following measurement current ranges 50 10 200 2 150 nA to 50 uA 3 30 pA to 3 mA The choice of a fixed measurement range optimises the measurement settling time for a known insulation resistance Example Choice of range 1 for a measurement greater than 500 GO at 500 V 4 7 6 TEST VOLTAGE LIMIT In the SET UP 7 press on the E key a The small display indicates 1000 V The main display indicates OFF Choose On or OFF using key A V and modify if necessary the value of the voltage using key gt then key A V Note This function limits the test voltage for the insulation measurement to the maximum value which is set here if this function is enabled This enables the device to be used by less experienced persons for specific applications telephony aerospace etc This limit may be hidden by using the application software Example By choosing On and a test voltage limit of 750 V the measurement will be performed at 500 V for the corresponding position on the rotary switch and at 750 V for all the other positi
31. l tests All troubleshooting and metrological checks must be performed by competent and accredited personnel CONTENTS fs PRESENTATION pe 4 1 1 Nee nal EE A 1 2 The accessories forthe CA 6547 rane a pa ena oa va ee Kee 4 2 DESCRIPTION e 5 P Te EE 5 PAPAR DISPLAY n 7 3 MEASUREMENT 8 Tee m 8 3 2 Insulatiorimieasuremients iL ees aera op d rae e Eoo esae Yu Pa a eoa eee EE pe e eL euin y vn Da d 8 d SRECIAL FUNCTIONS 9n 10 KEN ENSE ELE E 10 10 4 3 R DAR PI DD R t D 10 D MEIN D m 18 4 5 9 SMOOTH EE 18 46 ed m D E 13 4 7 Function device configuration x al edad ra a aD aba ek ey ean 13 ill 17 5 1
32. ltage is indicated see 6 3 2 Switching between the AC and DC modes is done automatically in AC mode the RMS value is indicated 3 2 INSULATION MEASUREMENTS When the switch is rotated to an insulation position the main display shows tESt and the small display shows the selected test voltage for a short time If the test voltage is limited to a smaller value than selected because of a test voltage limit set in SET UP see 8 4 7 6 LIM is shown instead of tESt together with the actual voltage value After that the main display shows MO and the small display shows the voltage present at the and terminals of the instrument If when the START key is pressed the external voltage present at the terminals of the unit is higher than the value defined by the equation below the insulation measurement is not triggered an audible warning signal sounds and the main display shows the message diSt for a short time then the instrument returns to automatic voltage measurement Upeak gt 0 4 x dlSt x Un with Upeak peak or DC external voltage present on unit terminals diSt coefficient defined in the set up menu adjustable to 0 03 0 10 0 20 default value 0 03 Un test voltage chosen for insulation measurement If the external voltage at the terminals of the unit is less than the value defined previously the insulation measurement is authorised Pressing the START key immediately triggers the measurement The v
33. n each stored samples is programmed in the SET UP configuration menu This function is also available on model C A 6545 that has no RAM for the storage of measured data or interface to recover this data from the instrument on a PC After pressing the R t key the instrument switches to display mode m the small display indicates a time of 00 30 if the sampling frequency is 30 s a the main display indicates the corresponding value R The V TIME key is used to alternate between time and voltage on the small display with the value on the main display The A V key is used to scroll through all the samples stored during the measurement This makes it possible to note the elements for an R t and U t diagram It is therefore possible to perform on site an R t analysis with no printer or PC A new press of the A t key will exit the function 4 4 XZ ALARM KEY W Primary function 3 This function is used to activate or deactivate the backlight WB Secondary function ALARM Activation deactivation of the ALARM function The corresponding symbol is displayed when activated If this function is active and the limit programmed in the SET UP menu is exceeded or fallen below during the measurement the ALARM symbol will flash and the buzzer if activated will sound continuously It is possible to program a different limit for each test voltage the limits will be stored even if the instrument is switched off 4 5 gt SMOOTH KEY
34. nt should be checked at least once a year For checks and calibrations contact one of our accredited metrology laboratories information and contact details available on request at our Chauvin Arnoux subsidiary or the branch in your country 8 3 REPAIR For all repairs before or after expiry of warranty please return the device to your distributor 9 GUARANTEE Except as otherwise stated our warranty is valid for twelve months starting from the date on which the equipment was sold Extract from our General Conditions of Sale provided on request The warranty does not apply in the following cases W Inappropriate use of the equipment or use with incompatible equipment W Modifications made to the equipment without the explicit permission of the manufacturer s technical staff W Work done on the device by a person not approved by the manufacturer W Adaptation to a particular application not anticipated in the definition of the equipment or not indicated in the user s manual Damage caused by shocks falls or floods 10 ORDER C A 6545 Megohimmeten EE P01139701 6547 Megohmmmeter das Eu ARR a deu eMe ERA XR P01139702 Delivered with bag containing 1 cable DB9F DB9F 6547 1 adapter DB9M DB9M 6547 E 2 3 safety leads fitted with a HV plug and a HV alligator clip red and blue 1 3 m guarded safety
35. ons on the rotary switch LIM appears for 3 seconds on the main display 5 USE 5 1 MEASUREMENT PROCEDURE W Start up the instrument by setting the switch to the desired measurement position All the segments of the LCD screen are displayed then the battery voltage Connect the and leads to the measurement points W The input voltage is measured continuously and indicated on the small display If an external voltage higher than the authorised limit value see S 3 2 is present the measurement will be inhibited Apress on START STOP starts the measurement W Another press on START STOP stops the measurement The last result remains displayed until the next measurement or the rotation of the switch If a voltage higher than the authorised limit value see 3 2 appears during all the measurements the device will indicate this voltage on the small display using the flashing warning symbol and stop the measurement in progress Note A certain number of special functions may be used see 6 4 5 2 INSULATION MEASUREMENT See 8 3 2 With this function the instrument can measure insulation between 10 and 10 TO according to the chosen test voltage among 500 1000 2500 5000 V or programmed voltage between 40 V and 5100 V Position the switch on 500 V 2 TQ or 1000 V 4 TQ or 2500 V 10 TQ or 5000 V 10 TO or Var 50 5000 V W Connect the device to the part to be tested If the voltage present is highe
36. pe of problem It is therefore necessary to supplement the PI and DAR indications by a dielectric discharge test used to calculate the DD term This test measures the dielectric absorption of heterogeneous or multilayer insulation while ignoring the parallel surface leak currents It consists of applying a test voltage for a period sufficient to electrically charge the insulation to be measured a typical value is the application of a 500 V voltage for 30 minutes An ordinary insulation measurement or a programmed time test is done for the desired duration and at the desired test voltage When ending the insulation measurement the test object is discharged fast and the capacitance is measured After one minute the residual current through the test object is measured The term DD is then computed from the equation below current measured after 1 minute mA test voltage V x capacitance measured F The indication of the insulation quality as a function of the resulting value is as follows DD value Insulation quality 7 DD Very bad 2 DD 4 Doubtful Note The dielectric discharge test is particularly suited for the insulation measurement of rotating machines and in general for the insulation measurement of heterogeneous or multilayer insulation containing organic materials 4 DD 7 Bad W Utilisation of the R DAR PI DD function During or after a measurement the R DAR PI DD key is used to scroll through the values a
37. r than the authorised limit value see 8 3 2 the measurement will be inhibited W Start the measurement and note the results It is possible to scroll through all the results on the main display using the R DAR PI DD key see 4 3 or on the small display using the V TIME key see 8 4 2 R t is used to access the intermediate values measured and stored at a rate set in SET UP in Programmed time test mode These samples are available until the start of another measurement or until the next rotation of the switch see 4 3 To measure high insulation values gt 1 GQ you are advised to use the guard terminal to remove the influence of surface leakage currents The guard terminal should be connected to a surface where surface leakage currents may flow via dust and humidity for example the insulation surface of a cable or transformer between two measurement points As soon as insulation measurements stop the tested circuit is automatically discharged via an internal resistor of the device Connection diagram for measurement of low insulation values example of a motor W Connection diagram for measurement of high insulation values a Example of a motor reduction of capacitive effects b Example of a cable reduction of surface leakage effects Insulator External insulator Guard 5 3 CAPACITANCE MEASUREMENT Capacitance measurement is performed automatically during the insulation measurement and is displa
38. sistance when using the MEM function storage C A 6547 If the position of the rotary switch is modified or if the STOP key is pressed during the measurement the measurement is aborted 4 3 R DAR PI DD R t KEY R DAR PI DD primary function The R DAR PI DD key is used to calculate automatically the Polarisation Index Pl and the Dielectric Absorption Ratio DAR or perform a Dielectric Discharge test DD These PI and DAR values are particularly useful for monitoring the ageing of the insulation of rotating machines or very long cables for example On this type of component the measurement is disturbed at the beginning by parasitic current flows capacitive load current dielectric absorption current which decrease with time To measure exactly the representative leak current of the insulation it is therefore necessary to perform long duration measurements to by pass the parasitic currents present at the beginning of measurements Then the PI or DAR ratios are calculated R 10min R 1 min 2 values to be noted during a 10 min measurement DAR R 1min R 30s 2 values to be noted during a 1 min measurement The quality of the insulation is a function of the results DR P Condition of insulation 1 Insufficient or even S For multilayer insulation H one of the layers is defective but if all the others show strong resistance the calculation of the and PAR ratios is not sufficient to show up this ty
39. t by pressing the 2nd key again or another key 4 7 SET UP FUNCTION DEVICE CONFIGURATION This function located on the rotary switch is used to change the configuration of the device by accessing directly the parameters to be modified After turning the rotary switch to the SET UP position the segments of the display are activated for 1 second a the number of the software version is displayed m the serial number of the device is displayed PUSH then appears on the small display and btn on the main display to prompt you to press a key The SET UP function is then used to access directly the parameters to be modified by pressing the corresponding key m After pressing a key the figures or symbols corresponding to the function selected appear on the screen modifiable figures or symbols will flash The normal modification procedure using the gt and AW keys must be used m All the parameters are recorded immediately and permanently The following table defines the active keys in the SET UP function and the corresponding display with the possible adjustment ranges Parameters Display Test duration in Programmed tESt 30 00 inteso time test mode 01 00 59 59 second first period 1 and 2 time for PI calculation R DAR PI DD period 10 00 01 00 Time between samples in R t ie Programmed time test mode Limit for 500 V 2 TO ALARM ALARM Limit for 1000 V 4 ALARM 2 press A
40. t represents a box in which 99 tests can be stored An object can thus represent a machine or an installation on which a number of measurements will be performed 1 When the key is activated the MEM symbol flashes and the small display indicates the next free OBJ TEST for example 02 01 The main display indicates FrEE It is always possible to modify the OBJ TEST using the gt and the A V keys If the user selects an already occupied memory address OCC appears on the main display If a new OBJ is selected TEST is set to 01 2 By pressing the MEM key again the results of the present measurement will be recorded in the selected memory address whether occupied or not The MEM symbol no longer flashes and remains displayed The time and date of this recording are stored with the data already available R U t If the switch is turned before the second press of MEM the record mode will be exited without the results being stored 3 If a programmed time test was performed intermediate measurements samples are available see 8 4 3 They are automatically recorded under the same OBJ number TEST as the final measurement Memory space available This function is automatically activated when recording a result Press once on MEM to obtain the next free OBJ TEST the indication of the bargraph is proportional to the free memory available m lf the entire memory is free all the segments are activated wm If the entire memory is full the l
41. trolling the unit via the RS 232 1 2 2 SERIAL PRINTER OPTION This compact printer is used to print the measurement results directly in the field whether stored or not 1 2 3 SERIAL PARALLEL ADAPTER OPTION The optional RS232 Centronics adapter converts the serial interface RS232 into a parallel printer interface Centronics enabling direct printing of all measurements on A4 format office printers without having to use a personal computer 2 DESCRIPTION 2 1 CASING START STOP C A 6547 MEGOHMMETER Row 3 safety terminals 4 mm marked G and Access to terminal protective fuse 7 way rotary switch OFF switches off unit power 500 V 2 TQ insulation measurement at 500 V up to 2 TQ 1000 V 4 TQ insulation measurement at 1000 V up to 4 W 2500 V 10 TQ insulation measurement at 2500 V up to 10 TQ W 5000 V 10 TQ insulation measurement at 5000 V up to 10 TQ Var 50 5000 V insulation measurement with variable test voltage W SET UP adjustment of unit configuration 1 yellow START STOP push button start stop of measurement gt 6 keys C A 6545 or 8 keys C A 6547 made of elastomer each having a main function and a secondary function 2nd Selection of the second function in yellow Italics above each key R DAR PI DD Primary function before the insulation measurements selection of required measurement type normal measurement calculation of
42. work direct operation on AC network battery recharge Male connector RS 232 serial interface connector 9 pin for connection to a PC or printer C A 6547 only On the C A 6545 this connector is used for adjustments of the instrument only 2 2 DISPLAY E e We 1006 BIER min Sec L A vem 70 LE A J DARDD hi Ll Li 1 Dear ALARM 2 KAN Li Li L a ei SMOOTH REMOTE 2 2 1 DIGITAL DISPLAY The main digital display indicates the values for insulation measurement values resistance DAR PI DD or capacitance The small digital display indicates the voltage measured or applied by the instrument During the insulation measurement the elapsed time or the output voltage is displayed After the recording of a group of data C A 6547 the small display also indicates the date and time in MR Memory recall mode It is also used to indicate the memory address using the OBJ TEST number see 2 2 3 2 2 2 BARGRAPH The bargraph is active during insulation measurement 0 1 MQ to 1 TQ It is also used to indicate the battery charge and the memory space 2 2 3 SYMBOLS MEM MR indicates the storage MEM or memory reading MR operations C A 6547 OBJ TEST Memory address C A 6547 the number is displayed above on the small digital display COM Indicates that the instrument is sending data to the printer via the interface C A 6547 DAR PI DD indicates the mode chosen befor
43. yed after the measurement stops and the discharge of the circuit using the R DAR PI DD key 5 4 RESIDUAL AND LEAKAGE CURRENT MEASUREMENT The residual current circulating in the installation is measured automatically during an insulation measurement It is displayed at the end of the measurement with the R DAR PI DD key 6 MEMORY RS 232 6547 6 1 RS 232 CHARACTERISTICS W The speed in bauds may be adjusted to 300 600 1200 2400 4800 9600 or Parallel for printing on parallel printers via the optional serial parallel adapter This adjustment is performed in the SET UP menu see 8 4 7 2 Data format 8 data bits 1 stop bit no parity protocol Xon W Connection to serial printer Front view Front view 9 pin female 9 pin male connector connector to C A 6547 to serial printer Connection to a PC or a parallel printer D 9 pin connector to C A 6547 9 pin connector to PC 25 pin connector 25 pin connector to PC or serial to parallel adapter Required links DB9 gt B25 0 gt Conversion DB25 gt DB9 2 9 standard null modem cable 128 6220 2239 222 735 322 3253 824 735 426 9222 527 6 2 RECORDING PLAYBACK OF STORED VALUES MEM MR KEY 6 2 1 PRIMARY MEM FUNCTION STORAGE This function is used to record results in the device s RAM These results can be recorded at an address identified by an object number OBJ and a test number TEST An objec
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