Chauvin Arnoux C.A 6549 User Manual
  1. Manuals
  2. Brands
  3. Chauvin Arnoux Manuals
  4. Controller
  5. C.A 6549
  6. User manual
Chauvin Arnoux C.A 6549 User Manual

Chauvin Arnoux C.A 6549 User Manual

A top-of-line measuring instrument, portable, in a rugged constructionsite housing with cover, with a graphic screen, operating from battery or line power
Hide thumbs Also See for C.A 6549:
Table of Contents

Advertisement

Quick Links

Download this manual
■ ■ ■ ■ ■
MÉGOHMMÈTRES
■ ■ ■ ■ ■
MEGOHMMETERS
Mode d'Emploi
FRANCAIS
User's manual
E N G L I S H
C.A 6549
1

Advertisement

Table of Contents
loading

Related Manuals for Chauvin Arnoux C.A 6549

Summary of Contents for Chauvin Arnoux C.A 6549

  • Page 1 C.A 6549 ■ ■ ■ ■ ■ MÉGOHMMÈTRES ■ ■ ■ ■ ■ MEGOHMMETERS Mode d'Emploi FRANCAIS User's manual E N G L I S H...
  • Page 2 The voltages of the parts identified by this symbol may be ≥ 120VDC. For safety reasons, this symbol lights on the display unit as soon as a voltage is generated. Thank you for purchasing this C.A 6549 megohmmeter and for your confidence. For the best possible service from your instrument: read this User Manual carefully, comply with the precautions for use.

  • Page 3: Table Of Contents

    CONTENTS 1. PRESENTATION ..........................50 1.1. The megohmmeter ....................... 50 1.2. Accessories ......................... 50 2. DESCRIPTION ..........................51 2.1. Housing / Front panel / Keys ....................51 2.2. Display ..........................53 3. MEASUREMENT FUNCTION ......................54 3.1. AC / DC voltage ........................54 3.2.

  • Page 4: Presentation

    1. PRESENTATION 1.1. C.A 6549 MEGOHMMETER The C.A 6549 megohmmeter is a top-of-line measuring instrument, portable, in a rugged construction- site housing with cover, with a graphic screen, operating from battery or line power. Its main functions are: § automatic detection and measurement of voltage / frequency / input current, §...

  • Page 5: Description

    § DataViewer Pro PC software This is used to: - recover stored data (results, graphs, etc.) - print personalized test protocols in accordance with user needs, - create text files to be able to use spreadsheets (Excel , etc.), - configure and completely control the instrument via the RS 232 port. The minimum recommended configuration is a PC with a 486DX100 processor.
  • Page 6 3 4mm-dia. safety terminals identified as «+», «G», and «-» Access to the fuse that protects terminal “G” 8-way rotary switch: § Off: switches instrument power off § 500 V-2 TΩ: insulation measurement at 500V up to 2 TΩ § 1000 V-4 TΩ: insulation measurement at 1000V up to 4 TΩ...

  • Page 7: Display

    Fonction première : store measured values. Fonction seconde : retrieve stored data (this function is dependent of the switch position), except in the OFF and SET-UP positions. 2.2. DISPLAY 2.2.1 GRAPHIC DISPLAY UNIT The display unit is a graphic display unit with a resolution of 320 x 240 pixels. It has built-in backlighting that can be activated or deactivated using the ✻...

  • Page 8: Measurement Function

    3. MEASUREMENT FUNCTIONS 3.1. AC / DC VOLTAGE Turning the switch to an insulation position (position other than OFF or SET-UP) sets the instrument to automatic AC / DC voltage measurement. The voltage between the input terminals is measured at all times and indicated on the display unit: Input Voltage.
  • Page 9 Case 1 You select an insulation measurement with a fixed / standard test voltage, in manual mode. Positions : 500V - 2TΩ Ω Ω Ω Ω 1000V - 4TΩ Ω Ω Ω Ω 2500V - 10TΩ Ω Ω Ω Ω 5000V - 10TΩ...

  • Page 10: Capacitance Measurement

    U peak ≥ dlSt x Un where - Upeak : external voltage, peak or DC, on the terminals of the instrument. dlSt : coefficient that can be adjusted in SET-UP - 3% (defaut value), 10% or 20%. Un : test voltage selected for the insulation measurement. §...
  • Page 11 To validate the mode selected, press the MODE key again. The various measurement modes are as follows : § MANUAL STOP : This is the conventional quantitative insulation measurement mode : The measurement is started by pressing START / STOP and stopped by pressing START / STOP again.
  • Page 12 § TIMED RUN +DD : This mode is identical to the foregoing except that 1 minute after the end of the measurement the instru- ment calculates and displays the DD term. The measurement duration is therefore : duration of timed run + 1 minute. The insulation resistance vs.
  • Page 13 This makes it judicious to perform a dielectric discharge test, from which the DD term can be calculated. This test measures the dielectric absorption of heterogeneous or multilayer insulation and disregards parallel-surface leakage currents. It involves applying a test voltage for long enough to electrically “charge” the insulation to be measured (typically, a voltage of 500V is applied for 30mn).

  • Page 14: Display/Graph Key

    Interpretation of the results: D AR C o nd ition o f in sulatio n < 1 P oor or ev en < 1,25 < 2 dangerou s < 1,6 < 4 G ood > 1,6 > 4 E xcellent n The PRINT secondary function is described in §...
  • Page 15 Information accessible : P re s s o n D IS P L A Y F irs t s c re e n M e a s u re d re s is ta n c e M e a s u re d re s is ta n c e D C te s t v o lta g e D C te s t v o lta g e R e s id u a l c u rre n t...
  • Page 16 During the measurement Information accessible : F irst screen P ress on D IS P LA Y M easured re sistance M easured re sistance D C test v oltage D C test v oltage S purious input current S purious input current M easurem ent duration M easurem ent duration Insulation bargraph...
  • Page 17 1mn after the measurement The first screen displays the value of DD and the current used to calculate it (DD current) § TIMED RUN mode Before the measurement Information accessible : First screen Press on DISPLAY DC test voltage AC / DC input voltage Programmed duration of test Frequency AC / DC input voltage...
  • Page 18 Information accessible : Press on DISPLAY First screen Measured resistance Measured resistance DC test voltage DC test voltage Residual current Residual current Remaining measurement time Remaining measurement time Insulation bargraph DAR, PI, Capacitance After the measurement Information accessible : Press on DISPLAY press on DISPLAY First screen M easured resistance...
  • Page 19 Information accessible : First screen Press on DISPLAY DC test voltage AC / DC input voltage Programmed duration of test Frequency AC / DC input voltage Residual current Frequency Voltage bargraph Residual current Date, time During the measurement Information accessible : First screen Press on DISPLAY Measured resistance...
  • Page 20 Information accessible : Press on DISPLAY press on DISPLAY First screen Measured resistance DC test voltage AC / DC input voltage DC test voltage AC / DC input voltage Frequency Spurious input current Frequency Spurious input current Measurement duration Spurious input current Voltage bargraph DAR, PI, Capacitance Date, time...
  • Page 21 During the measurement Information accessible : First screen Press on DISPLAY Measured resistance Measured resistance DC test voltage DC test voltage Residual current Residual current Remaining measurement time Remaining measurement time Insulation bargraph DAR, PI, Capacitance After the measurement Information accessible : P re s s o n D IS P L A Y p re s s o n D IS P L A Y F irs t s c re e n...

  • Page 22: T° Key

    § GRAPH secondary function After a "programmed time test" measurement (Timed Run or Timed Run + DD), pressing this key displays the insulation resistance versus measurement time curve. This curve is plotted from the samples noted during the measurement. The ",!,# and $keys can be used to move along the curve to know the exact values of each sample. KEYS !/ T°...

  • Page 23: Smooth Key

    Remarks : § During the procedure, pressing DISPLAY or turning the switch cancels the calculation in progress. § If the coefficient ∆T used for the calculation is not known, the instrument can calculate it in advance, using at least 3 stored measurements made at different temeperatures (cf. § 4.5.3) §...
  • Page 24 Description of each instrument configuration parameter : § Display Contrast : modification of display unit contrast Default value Range 0…255 Attention : the display unit is no longer legible above 130 § Alarm Settings : programming of measurement threshold values below which an audible alarm is triggered.
  • Page 25 § DAR (s : s) and 2 times for the DAR calculation Default value Range 10… 90 : 15… 180 (s:s) 30 : 60 (s:s) 5-second steps § PI (m : m) and 2 times for the PI calculation Default value Range 0,5…...
  • Page 26 § Default Probe Temperature estimated measurement temperature unit Default value Range 23°C -15°C… +75°C § Rc Reference Temperature reference temperature to which the measurement result must be referred Default value Range 40°C -15°C… +75°C § ∆T for R/2 estimated ∆T to obtain an insulation resistance / 2 Default value Range 10°C...
  • Page 27 § Baud Rate RS 232 communication format and rate (cf. § 6.1) Default value Range 300… 9600 / RS 232 9600 / RS 232 or --- / Parallel § Units display version Default value Range Europe Europe or USA § Date current date or set date Europe...
  • Page 28 4.5.3 CALCULATION OF ∆ ∆ ∆ ∆ ∆ T FROM STORED DATA The coefficient ∆T is used to calculate the insulation resistance at a temperature other than the measurement temperature (cf. § 4.3). It is the temperature difference at which the insulation concerned is divided by 2. This coefficient is variable: it depends on the type of insulation.

  • Page 29: List Of Coded Errors

    LIST OF CODED ERRORS If an anomaly is detected when the instrument is started up or in operation, the display unit indicates an error code. The format of this error code is a 1- or 2-digit number. This number identifies the anomaly and the action to be taken.
  • Page 30 q Connection diagram for measurement of low insulation values (example of a motor) To measure high insulation values (> 1 GΩ Ω Ω Ω Ω ), we recommend using guard terminal «G» to avoid leakage and capacitive effects or eliminate the influence of superficial leakage currents. The guard terminal is connected to a surface where superficial currents may circulate through dust and humidity, e.g.

  • Page 31: Measurement In Voltage Step Mode

    § Pressing START/STOP again stops the measurement. The last result remains displayed until the next measurement is made or the switch is turned. When the insulation measurements stop, the circuit tested is automatically discharged via a resistor in the instrument. The DISPLAY key can be used to consult all information available after the measurement.

  • Page 32: Memory / Rs 232

    § Once the step function is defined, set the switch to Adl. Step and select Step Function n°3 using the " key. § Start the measurement by pressing START/ STOP § During the measurement, the following screens can be accessed by pressing the DISPLAY key. §...

  • Page 33: Recableing / Plyback Of Memory (Mem/Mr)

    Connexion to the serial printer : DB9F ➔ DB9M 2 → 2 5 → 5 3 → 3 6 → 6 4 → 4 8 → 8 q Connexion to a PC or to a parallel printer : DB9F Ô DB9F 2 →...

  • Page 34: Printing Measured Values (Print Key)

    q Estimate of result recableing capacity Total memory space: 128 Kbytes Internal management: 8 Kbytes Memory space available: 120 Kbytes An insulation measurement result requires approximately 80 bytes. It is therefore possible to recable approximately 1500 insulation measurements. q Memory space available This function is automatically activated when a result is recorded.
  • Page 35 - for a Timed Run test, the list of recorded samples. To stop printing, change the setting of the rotary switch. Depending on the measurement performed, the following models are obtained. Any measurement except srep function measurements : CHAUVIN ARNOUX C.A 6549 Instrument number: 000 001 Company:......Address:......
  • Page 36 Date of next test: ../../..Remarks:.............. Operator: ......Signature: ......Step function measurement: CHAUVIN ARNOUX C.A 6549 Instrument number: 000 001 Company:......Address:.............. Tel.:....Fax:....Email:....Description:....... ((printed only in MR mode) OBJECT: TEST: STEP FUNCTION TEST Date 31.01.2003...
  • Page 37 The printing of each group of data is reduced to the main results. Depending on the measurement performed, the following models are obtained. Any measurement except step function measurements : CHAUVIN ARNOUX C.A 6549 Instrument number: 000 001 Company:......Address:......
  • Page 38 -,—- Capacitance 110 nF …etc.…………………………………… Date of next test: ../../..Remarks:............Operator:....... Signature: ......Step function measurement: CHAUVIN ARNOUX C.A 6549 Instrument number: 000 001 Company:......Address:.............. Tel.:....Fax:....Email:....Description:....... OBJECT: TEST: STEP FUNCTION TEST Date 31.01.2003...

  • Page 39: Specifications

    § 6.3.1 to print stored data, proceed as described in § 6.3. 2 ATTENTION: This adapter is designed to be used only with the C.A 6543, C.A 6547, and C.A 6549 and is unsuitable for any other application. 7. SPECIFICATIONS...

  • Page 40: Characteristics Per Function

    CHARACTERISTICS PER FUNCTION 7.2.1 Voltage Characteristics Measurement 100...9 1000...2 2501...5 1.0...99,9 V domain 99 V 500 V 100 V Resolution 0.1 V Precision ± (1% reading + ± (1% reading + 1point) 5 points) Frequency 15 Hz...500 Hz or DC range Input impedance : 750 kΩ...
  • Page 41 q Nominal output voltage: 500, 1000, 2500, 5000 V Precision ± 2% adjustable from 40 V to 1000 V in 10V steps adjustable from 1000 V to 5100 V in 100V steps q Nominal current: ≥ 1 mA q Short-circuit current: <...
  • Page 42 q Precision and resistance range in variable / adjustable voltage mode Max. resistance measured = test voltage / 250pA 40…160V 170…510V 520…1500V 1600…5100 Test voltage Min. 10 kΩ 30 kΩ 100 kΩ 300 kΩ measured resistance 160.0 GΩ 640.0 GΩ 2.080 TΩ...

  • Page 43: Power Supply

    Range 2500 V Range 5000 V Calculation of the DAR and PI terms Specified domain 0.02...50.00 Resolution 0.01 Accuracy ± (5% R + 1 point) Calculation of the DD term Specified do m ain 0.02...50.00 Resolution 0.01 Accuracy ± (10% R + 1 point) q Capacitance measurement (after discharge of tested element) Specified measurement 0.005...9.999 µF...

  • Page 44: Environmental Conditions

    Minimum battery life (as per Nf EN 61557-2) Test voltage 500 V 1000 V 2500 V 5000 V Nominal load 500 kΩ 1 MΩ 2,5 MΩ 5 MΩ Nbr. of 5s measurements on nominal load 6500 5500 4000 1500 (with 25s pauses between measurements) Mean battery life Assuming a 1-minute DAR measurement 10 times a day and a 10-minute PI measurement 5 times a...

  • Page 45: Variations Within Domain Of Use

    If the instrument is started up and the battery voltage > 8 V, normal use of the instrument is allowed. The battery should be replaced by Manumesure or by a repairer approved by CHAUVIN ARNOUX. Attention: changing the battery causes a loss of stored data.

  • Page 46: Metrological Verification

    (extract from our General Conditions of Sale, available on request). 10. TO ORDER C.A 6549............................P01.1397.03 Delivered with a bag containing : 2 3-m safety cables, with an HV plug and an HV crocodile clip (red and blue)
  • Page 47 Accessories : q PC software...........................P01.1019.38A q Serial printer........................P01.1029.03 q serial-parallel adapter......................P01.1019.41 q Set of 2 simplified HT cables (red + black).................P01.2952.31 q Set of 2 crocodile clips (red + black)..................P01.1018.48A q Set of 2 contact pins (red + black)...................P01.1018.55A q Simplified HT guard cable + blue crocodile clip................P01.2952.32 q 8-m blue HT cable with crocodile clip..................P01.2952.14 q 8-m red HT cable with crocodile clip..................P01.2952.15 q 8-m HT cable with crocodile clip with long grounding reminder..........P01.2952.16...
  • Page 48 12 - 2003 Code 689646A00 - Ed. 1 Deutschland - Straßburger Str. 34 - 77694 KEHL /RHEIN - Tél : (07851) 99 26-0 - Fax : (07851) 99 26-60 España - C/ Roger de Flor N°293 - Planta 1 - 08025 BARCELONA - Tél : (93) 459 08 11 - Fax : (93) 459 14 43 Italia - Via Sant’...

Table of Contents