C.A 6545 C.A 6547 C.A 6549
Contents
1. 1Z FRANCE UNITED KINGDOM Waldeck House Waldeck Road MAIDENHEAD SL6 8BR Tel 01628 788 888 Fax 01628 628 099 e mail info chauvin arnoux co uk www chauvin arnoux co uk 190 rue Championnet 75876 PARIS Cedex 18 Tel 33 1 44 85 44 85 Fax 33 1 46 27 73 89 e mail export chauvin arnoux fr www chauvin arnoux fr 906 211 069 Ed 1 12 03 Characteristics subject to modifications according to technological developments Experts in insulation analysis at 5kV C A 6545 C A 6547 E Giant backl iF E Test voltages 4 E Step voltage mode T E Automatic calculation of DAR PI and DD quality ratios E R result recalculated to a reference temperature In a hard casing that is site adapted for the most severe measuring conditions the C A 6545 C A 6547 and C A 6549 megohmmeters offer the very best in insulation testing technology and accuracy They measure voltages frequencies capacitance and residual current on installations or equipment Their multiple functions not only qualify the measured insulation but also provide real preventative maintenance for PC or printer connection C A 6547 and C A 6549 A Backlit graphic display with messages symbols and bargraph _Bite proot casing with sealed IP 53 shock resistant cover _ Socket for AC mains connection and internal Fs 4 a NiMH battery charger fi ss _ Folding handle for storing _ AN 65452. Metrologie Pre set test voltage 500 1000 2500 5000 V INSULATION Adjustable test voltage 40 V to 5100 V by increments of 10 or 100 V Range 10 kQ to 10 TQ VOLTAGE from 1 to 5100 V 15 Hz to 500 Hz or DC CAPACITANCE 0 005 to 49 99 uF LEAKAGE CURRENT 0 000 nA to 3000 LA Functions Giant LCD Graphic Backlighting Programmable alarms Prog test duration Ratio calculations Step voltage mode R calcul to T reference om U test locking dE yes Displayed directly 128 Kbytes Bi directional Result print out On serial or parallel printer PC software Power supply Rechargeable NiMH battery es no yes yes i Charge life Electrical safe TO ORDER C A 6545 P01 1397 01 C A 6547 P01 1397 02 C A 6549 P01 1397 03 Delivered complete with tool bag containing accessories 2 Xx 3 m HV measurement leads with crocodile clip blue black 1 x 3 m HV guard lead with black crocodile clip m 1 x 3 m rear pick up lead 0 35 m blue m 1x 2 m power supply lead 1 user s manual in 5 languages ACCESSORIES Data Viewer Pro PC software P01 1020 06 Serial printer P01 1029 03 Serial to parallel adapter P01 1019 41 Set of 2 simplified HV leads red black P01 2952 31 Set of 2 crocodiles clips red black P01 1018 48A Set of 2 test probes red black P01 1018 55A HV leads 8 m or 15 m Please contact us C A 861 K type Thermocouple Thermometer P01 6501 01Z C A 846 Thermo hygrometer P01 1563 0
3. and C A 6547 with giant LCD screen The C A 6545 C A 6547 and C A 6549 megohmmeters are supplied with a tool bag containing perfectly insulated and large sized crocodile clamp leads 3 m 2 measurement leads and a guard lead for strong insulation measurements Simplified banana plug leads 4 mm are used for adapting small sized crocodile clips or test probes available as accessories POLARIZATION INDEX PI amp DIELECTRIC ABSORPTION RATIO DAR Insulation is sensitive to variations in temperature and hygrometry The measurement is initially inaccurate due to unwanted currents To eliminate their influence it is necessary to measure for a long period of time and calculate with PI and DAR coefficients These calculations are used to qualify the quality and the aging of the insulation To adapt to possible normative changes or a specific application the 10 mn and 1 mn times for calculating PI can be changed in the instrument s SET UP AD pd mn DINA a ilatic lit R1 mn R1 n n DAR R in R30 lt S Insulation quality _ Inst al gua Weegee a a ane inadequate ETIK DIELECTRIC DISCHARGE INDEX DD This test measures the dielectric absorption in heterogeneous and multi layer insulation and reveals any impurities or defective layers Principle after the insulation has been energized for a certain time 500 V for 30 mn is recommended its capacitance is measured then 1 mn later the residual cur
4. n sensitive installations or equipment i SMOOTH FUNCTION When measurement values are unstable this function smoothes out the values displayed making them easier to read and quicker to interpret PROGRAMMABLE ALARMS A high or low alarm threshold can be stored If exceeded a visual warning signal and an audible buzzer will go off MEMORIZATION C A 6547 and C A 6549 The C A 6547 and C A 6549 have an internal memory for storing several thousand measurements Measurements are stored by classification according to the object OBJ and test TEST address for systematic memory storage of tests PRINTER C A 6547 and C A 6549 A compact serial printer can be connected for printing directly on site It is also possible to use a parallel office printer via the serial to parallel adapter accessory DATAVIEWER PRO SOFTWARE C A 6547 and C A 6549 This software provides data recovery and processing test protocol printing and customizing as well as configuring and driving the C A 6547 and C A 6549 via the connection This software is also compatible with all other Chauvin Arnoux instruments equipped with a communication output a a od E e E m ee ees ee 1 e gi ma ee fe aa sith e HE ae rae or See g et a ain ess STEP VOLTAGE C A 6549 The resistance of a faulty insulation decreases as the test voltage increases In this test the test voltage is increased in steps Thus it i
5. rent is measured DD Current measured after 1 mn mA Test voltage V x Capacitance measured F Insulation insulation quality ality J nadequate Var 50 5000 V POSITION To satisfy all measurement needs electric switchgear telecom installations and measure as accurately as possible the test voltage can be selected on all three instruments with the Var 50 5000 V position on the rotary switch Voltage can be adjusted between 40 V and 1000 V in 10 V steps and between 1000 V and 5100 V in 100 V steps TIME CONTROLLED TESTING Insulated measurements sometimes take a long time to stabilize due to transient unwanted currents Being able to carry out measurements over a long period of time and analyze the insulation s curve as a function of the test voltage application time gives a better understanding of the quality of the insulation R t GRAPH When a time controlled test is begun the instruments automatically memorize measured insulation samples at a rate specified by the operator The R t curve can then be plotted out by hand or on a PC screen using DATAVIEWER software For the C A 6549 the curve can also be viewed directly on the graphic screen LOCKING INSULATION TEST VOLTAGES It is possible to limit the test voltage to a unique value regardless of the chosen test voltage This locking function is used for when the instrument is entrusted to someone who is less experienced and for avoiding procedural errors o
6. s possible to judge the quality of the insulation by its R curve Utest and the ppm V result which quantitatively translates the slope of the curve REFERENCE TEMPERATURE C A 6549 The value of the insulation resistance varies according to measurement temperature For accurate and reliable follow up it is advisable to always recalculate the measurement result to the same reference temperature Simply press on the key and the C A 6549 makes this calculation
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