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AEMC 6550 User Manual

Megohmmeters
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User Manual
ENGLISH
Megohmmeters
Models
6550 & 6555
MEGOHMMETERS
WITH AEMC
INSTRUMENTS
®

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Summary of Contents for AEMC 6550

  • Page 1 User Manual ENGLISH Megohmmeters Models 6550 & 6555 MEGOHMMETERS WITH AEMC INSTRUMENTS ®...
  • Page 2 Copyright Chauvin Arnoux , Inc. d.b.a. AEMC Instruments. All rights reserved. © ® ® No part of this documentation may be reproduced in any form or by any means (including electronic storage and retrieval or translation into any other language) without prior agreement and written consent from Chauvin Arnoux , Inc., as governed by United States and International copyright laws.
  • Page 3 Statement of Compliance Chauvin Arnoux , Inc. d.b.a. AEMC Instruments ® ® certifies that this instrument has been calibrated using standards and instruments traceable to international standards. We guarantee that at the time of shipping your instrument has met the instrument’s published specifications.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS 1. INTRODUCTION ..............7 1.1 INTERNATIONAL ELECTRICAL SYMBOLS ......7 1.2 DEFINITION OF MEASUREMENT CATEGORIES (CAT)..8 1.3 PRECAUTIONS FOR USE ..........8 1.4 RECEIVING YOUR SHIPMENT ..........9 1.5 ORDERING INFORMATION ............. 9 1.5.1 Accessories ................9 1.5.2 Replacement Parts ..............
  • Page 5 3.4.3 Resetting the Default Parameters .......... 28 3.4.4 Measurement Parameters ............. 29 3.4.5 Adjustment of the Test Voltages ..........30 3.4.6 Adjustment of the Test Voltages ..........32 4. OPERATION ................33 4.1 CHARGING THE BATTERIES ..........33 4.2 USING THE LEADS ..............34 4.3 AC/DC VOLTAGE MEASUREMENT ........
  • Page 6 6. DATAVIEW SOFTWARE ............60 ® 6.1 INSTALLING DATAVIEW ............60 ® 6.2 MEGOHMMETER CONTROL PANEL ........62 7. SPECIFICATIONS ..............63 7.1 REFERENCE CONDITIONS ........... 63 7.2 ELECTRICAL SPECIFICATIONS ........... 63 7.2.1 Voltage ................... 63 7.2.2 Current ................... 63 7.2.3 Insulation Resistance ............. 64 7.2.4 DAR, PI, and DD ..............

  • Page 7: Introduction

    Analysis of the complete lifecycle has enabled us to control and optimize the effects of the product on the environment. In particular this instrument exceeds regulation requirements with respect to recycling and reuse. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 8: Definition Of Measurement Categories (Cat)

    ■ When handling the leads, test probes, and alligator clips, keep your fingers behind the physical guard. ■ As a safety measure, and to avoid interference, do not move and do not handle the leads during measurements. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 9: Receiving Your Shipment

    Lead - One 45 ft 15 kV black with integral clip ......... Cat. #2151.41 Power cord - 240 V EU ..............Cat. #5000.32 Order Accessories and Replacement Parts Directly Online Check our Storefront at for availability www.aemc.com/store Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 10: Product Features

    They are packaged in a rugged case, have a graphical LCD screen and can operate on battery or AC power. The Model 6550 makes insulation measurements at voltages up to 10,000 V, the Model 6555 up to 15,000 V.

  • Page 11: Front Panel Features

    Power receptacle for recharging the batteries. USB connection for communication with a PC. Seven-position rotary function switch. Navigation buttons for moving the cursor, selecting and changing values. START/STOP measurement button. Eight function buttons (see § 2.4). Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 12: Display

    MΩ GΩ TΩ 10 100 Value of the insulation resistance on the bargraph 2.3.3 Example of Display After Measurement symbol indicates blinking. If values are undetermined, they are represented by Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 13: Button Functions

    Comparing measurements to a single reference temperature makes it easier to evaluate insulation resistance measurements taken at different times and temperatures. Similarly, measuring the humidity improves the correlation between the various measurements made on a given device. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 14 Rc at 40 °C 1.529 GΩ If coefficient ∆T for R/2 is not known, it can be calculated from a minimum of 3 measurements made on the same device at different temperatures. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 15: Alarm Button

    1.0/10 CONFIG ■ Manual Stop: measurements are stopped manually. ■ Manual Stop + DD: measurements are stopped manually and dielectric discharge ratio (DD) is calculated at the end of the programmed duration. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 16 Test Type Burn-in configuration parameter. 1 mA Maximum Ouput Current screen. I-Range Auto(2) Disturbance Level Ω 2500V < 2.5 M DISPLAY Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 17 ■ Stopping the test at a preset current (Break at I-limit) The I-LIM symbol is displayed. I-LIM FIXED VOLTAGE 1000 V 500 V 2500 V Input voltage 10 V AC Frequency 50.0 Hz Input current 24.6 pA Date 2011.05.23 Time 10:31 Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 18 = 10,000 V: Current Range Resistance R > 30 GW 200 MW < R < 16.6 GW 10 MW* < R < 1 GW *10 MW because Imax = 1 mA at 10,000 V. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 19 Input current 24.6 nA Date 2011.05.23 Time 10:31 The High setting is recommended when measurements are made in the presence of strong electromagnetic fields at the network frequency (for example near high-voltage lines). Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 20: During The Measurement

    During the measurement (for V-VAR and V-FIXED), the CONFIG button is used to choose the current range: automatic (default) or fixed. For more details, refer to the previous section. ■ Once the measurement has started, press the CONFIG button. The following screen appears: Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 21: Display Button

    This button is used to browse through the various accessible screens containing all information available before, during or after the measurement. Depending on the measurement mode and the configuration chosen (CONFIG button), the screens are different. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 22: Graph Button

    GΩ GΩ 10.0 10.0 1000 1000 1:00 2:00 3:00 4:00 1:00 2:00 3:00 4:00 If the interval of the scale of an axis is big enough, it may be possible to zoom. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 23 V-STEP). GRAPH DISPLAY This curve is useful primarily in the case of a measurement in V-RAMP mode. There is no cursor and it is not possible to zoom on this curve. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 24: Filter Button

    ■ DF 10: time constant 10 seconds ■ DF 20: time constant 20 seconds ■ DF 40: time constant 40 seconds ■ DF: automatic filter, adapts the filter time to the resistance result changes. ■ no filter Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 25: Help Button

    TEMP: temperature menu HELP , : select test voltage - lower - higher A long press on the HELP button (>2 s) allows setting of the display contrast and the backlighting (see § 3.1). Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 26: Instrument Configuration

    Deutsch Italiano SET-UP Español Svenska Suomi Step Voltage Dansk V RAMP Norsk V VAR 中文 V FIXED CONFIG Installing the new language may take up to 30 seconds. The device then reboots. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 27: Choosing The Measurement Of The Lead Compensation

    V VAR V FIXED FILTER 3.4 CONFIGURING THE INSTRUMENT (SET-UP) The Models 6550 and 6555 are factory configured so that they can be used without modifying the parameters. For most measurements, simply choose the test voltage and press the START/STOP button.

  • Page 28: Configurable Parameters

    ■ Data rate: 38,400 baud ■ Programmed measurement duration: 2 minutes ■ Sampling duration: 10 seconds ■ DAR: 30/60 and PI: 1/10 ■ Test type: Burning ■ Maximum output current: 5 mA Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 29: Measurement Parameters

    ■ Maximum output voltage: 10 kV (6550), 15 kV (6555) ■ Adjustable test voltages: 50 V, 800 V and 7000 V ■ Ramp and step test voltages return to their original values, as do all alarm thresholds ■ The backlight will be turned off 3.4.4 Measurement Parameters...

  • Page 30: Adjustment Of The Test Voltages

    350 V 0:10 150 V 0:10 400 V 0:10 200 V 0:10 450 V 0:10 250 V 0:10 500 V 0:10 DISPLAY 1:40 Total Run Time (m:s) Total Run Time (m:s) 1:40 Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 31 The duration of the steps can range from Start 0:30, Ramp 0:10, End 0:10 to 99:59. Press the ◄ arrow button to exit the menu and go back to the main menu. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 32: Adjustment Of The Test Voltages

    < 5.0 MΩ 5000 V < 10 MΩ 10000 V 15000 V < 15 MΩ Adjustable Voltage 1 < 50 kΩ DISPLAY Adjustable Voltage 2 < 100 kΩ Adjustable Voltage 3 < 250 kΩ Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 33: Operation

    ƒ Full = battery fully charged ƒ Cold = battery too cold to be charged ƒ Hot = battery too hot to be charged ƒ Defect = battery faulty (must be replaced) Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 34: Using The Leads

    Always keep hands behind the protective guards indicated below: Measurements of voltages ≥1000 V on supply lines should be made using the test probes only, with the user’s hands behind the hand guard on the lead. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 35: Ac/Dc Voltage Measurement

    The only errors possible in a voltage measurement are: ■ The frequency is outside the measurement range (see § 7.2.1) ■ The voltage is outside the measurement range (see § 7.2.1) Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 36: Insulation Measurements

    Set the switch to the V-FIXED position. The following screen appears: SET-UP Step Voltage V RAMP V VAR V FIXED Use the ◄ ► ▲▼ buttons to select the test voltage: (500, 1000, 2500, 5000, 10,000) V or 15,000 V Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 37: Using A Variable Voltage

    The adjustment is in 10 V steps up to 1000 V, and in 100 V steps above 1000 V. Keeping the buttons pressed will speed up the adjustment. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 38: Using A Voltage Ramp

    CONFIG button (see § 2.4.3). The duration of the test is the sum of the three durations specified: the duration of the initial level, the duration of the ramp, and the duration of the final level. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 39: Using A Stepped Voltage

    CONFIG button (see § 2.4.3). 4.4.6 Connection Depending on the measurements to be made, there are three ways of connecting the instrument. In all cases, disconnect the device to be tested from the supply line. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 40 Connect the blue high-voltage lead between the insulation and the G terminal of the instrument. Using the guard eliminates the influence of the surface leakage current. A conducting wire must be wrapped around the insulation. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 41: Before The Insulation Measurement

    The instrument generates high voltage. To indicate that the measurement is in progress, the instrument emits an audible beep every ten seconds (if the buzzer is switched on) and the START/STOP button lights up red. START/STOP START/STOP Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 42 (3 steps), the progress of the steps will be indicated. Step 2 of 10 E-BRK 5.03 GΩ Step 2/10 209.4 nA Voltage of the 1030 V second step Remaining Time 00:01:25 Remaining measurement time kΩ MΩ TΩ GΩ 10 100 Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 43 To display the voltage, press the DISPLAY button. In case of an external voltage >25 V the instrument automatically switches to the screen with the test description and small input voltage indication. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 44: After The Insulation Measurement

    The result remains displayed until another measurement is made, the rotary switch is turned to a different position, or the measurement configuration is changed. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 45: Error Indications

    ■ DAR = R 1 min/R 30 s (2 values to be taken during a 1 min measurement) ■ PI = R 10 min/R 1 min (2 values to be taken during a 10 min measurement) Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 46: Dar/Pi Measurement

    978 nA Elapsed Time 00:10:10 DAR (30s/60s) 2.64 PI (1.0m/10m) 1.05 Capacitance START/STOP 320 nF *The terms DAR, PI, DD and the capacity and current leak measurements are included in the quantity MΩ. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 47: Interpretation Of The Results

    PI < 1 DAR < 1.25 Poor or even dangerous 1 ≤ PI < 2 1.25 ≤ DAR < 1.6 2 ≤ PI < 4 Good 1.6 ≤ DAR 4 ≤ PI Excellent Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 48: Dd (Dielectric Discharge Index)

    At the end of the measurement, the instrument induces rapid discharging, during which the capacitance of the insulation is measured, then, one minute later, it measures the residual current flowing in the insulation. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 49: Dd Measurement

    Manual Stop + DD Timed Run (m:s) 2:00 Timed Run (m:s) 2:00 Timed Run + DD Timed Run + DD DAR (s/s) 30/60 DAR (s/s) 30/60 PI (m/m) 1.0/10 PI (m/m) 1.0/10 Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 50 (countdown on the display unit) for the instrument to display the result. During this time, the START/STOP button is lit but the instrument does not emit an audible signal. The result is then displayed. START/STOP Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 51: Interpretation Of Results

    The measurement of the residual current flowing in the device tested is made automatically as soon as the connection to the device tested is made, then during and after the insulation measurement. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 52: Memory Function

    ■ The instrument then asks you if you want to Store Samples with the measurement. Store MEMORY Obj. Test Date Time Fct. 01 01 2011-05-26 09:04 500V Store Samples Min. Sample Time (m:s) Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 53 Press the MEM button one last time to record the measurement. The instrument confirms the storage. The measurement is recorded with all its supporting information. To exit without recording and return to the last measurement, press the ◄ button. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 54: Reading Recorded Values

    Object Object Tests 01 .. 08 SET-UP Step Voltage  : select Object V RAMP  : show list at Object V VAR CONFIG : clear all V FIXED data record Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 55 700 V 0:10 800 V 0:10 0:10 900 V DISPLAY 1000 V 0:10 Recall MEMORY 102 V --- TΩ 00:00:02 102 V --- TΩ 00:00:02 GΩ 10.0 1000 GRAPH 1:00 2:00 3:00 4:00 Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 56: Erasing Memory

    Fct. 2011-05-28 09:04 2550V Selected data set 02 02 2011-05-27 10:43 will be cleared ! 02 01 2011-05-27 10:38 O.K. 01 02 2011-05-26 15:04 1000V 01 01 2011-05-26 14:56 500V CONFIG CANCEL Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 57: Erasing All Records

     : show list at Object O.K. CONFIG : clear all data record CANCEL CONFIG The instrument in this case completely reformats the memory, which takes a few minutes. During this time, it displays WAIT. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 58: Error Codes

    – Error 30 indicates that a resistance measurement has been stopped unexpectedly; check for disturbances. – Errors 31, 32 (see also the second type of error) and 40 indicate that no measurement is possible. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 59 ■ If instead of information on the help screen just the headline HELP and below the number 98 or 99 is shown, this indicates that language data for help is needed. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 60: Dataview ® Software

    3. The DataView setup screen appears. ■ In the upper left corner of the screen, choose the language version of the Setup interface. The Setup screens and dialogs will immediately appear in the selected language. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 61 Control Panel is selected by default. Control Panels take up disk space on the computer, so we recommend that you select Megohmmeter and deselect the rest unless you have other types of AEMC ® instruments. You should also check the option for the DataView Core, which is a requirement if you plan to create DataView reports.

  • Page 62: Megohmmeter Control Panel

    Help system that comes with the product. You can access this Help by clicking the option Help at the top of the Control Panel’s screen or by pressing F1 in the program. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 63: Specifications

    ±5 % Measurement (4.00 to 39.99) (40.0 to 399.9) 400 µA to (4.00 to 9.999) Range (DC) µA µA 3.999 mA Resolution 10 nA 100 nA 1 µA 10 µA Accuracy ±5 % Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 64: Insulation Resistance

    7.2.3 Insulation Resistance ■ Method: Voltage-current measurement per IEC-61557-2 from (300 to 10,000) V and per DIN VDE 0413 Part 1/09.80) ■ Nominal Output Voltage: (500, 1000, 2500, 5000, 10,000) V, and 15,000 VDC for the Model 6555 or adjustable from (40 to 10,000) V and 15,000 VDC for the Model 6555 Inherent accuracy ±1 % adjustable from (40 to 10,000) V...
  • Page 65 7 s x C Time (C at µF) Test Voltage 5000 V 10,000 V 15,000 V Discharge Time (C at µF) 14 s x C 27 s x C 57 s x C Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 66 100 k 10 M 100 M 10 G 100 G 10 T 2500V Range 3000 2500 2000 1500 1000 10 k 100 k 10 M 100 M 10 G 100 G 10 T Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 67 100 G 10 T 15,000V Range 16000 16000 14000 16000 12000 10000 8000 6000 4000 2000 10 k 100 k 10 M 100 M 10 G 100 G 10 T 100 T Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 68: Dar, Pi, And Dd

    The NiMH technology allows a limited number of charging/discharging cycles that depends on the conditions of use and the charging conditions. Under optimum conditions, this number of cycles is 200. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 69: Battery Charger

    Possible consequences are: ■ Failure of the instrument to switch on, as long as the power cord is not connected. ■ A loss of the instrument’s date and time. Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 70: Optimize Battery Charging

    Defect message on the instrument screen. The instrument must then be sent in for repair (see § 8.6). Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 71: Environmental Specifications

    Emissions and immunity in an industrial environment per IEC/EN 61326-1 or BS EN 61326-1. 7.6.2 Mechanical Protections IP 65 according to IEC-60529 with the housing closed and IP 54 with the housing open. IK 04 according to IEC-50102. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 72 MΩ. 7.8 INHERENT AND OPERATING ACCURACY The Megohmmeter Models 6550 and 6555 comply with standard IEC-61557, which requires that the operating accuracy, called B, be less than 30 %. In insulation measurements, B = ± ( |A| + 1,15 √ E1² + E2² + E3² )

  • Page 73: Maintenance

    8.1 CHARGING THE BATTERY Refer § 4.1 for full details on recharging the battery. The Megohmmeter Model 6550/6555 is equipped with a rechargeable NiMH battery. This technology offers several advantages: ■ Long battery charge life for a limited volume and weight ■...

  • Page 74: Replacing The Battery

    ■ Use a soft cloth, lightly dampened with soapy water ■ Wipe with a damp cloth and then dry with a dry cloth ■ Do not splash water directly on the clamp ■ Do not use alcohol, solvents or hydrocarbons Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 75: Storage

    Chauvin Arnoux , Inc. d.b.a. AEMC Instruments ® ® Phone: (800) 343-1391 (Ext. 351) Fax: (603) 742-2346 E-mail: techsupport@aemc.com www.aemc.com Megohmmeter Models 6550 & 6555 - User Manual...

  • Page 76: Limited Warranty

    (603) 749-6434 (Ext. 360) Fax: (603) 742-2346 E-mail: repair@aemc.com Caution: To protect yourself against in-transit loss, we recommend that you insure your returned material. NOTE: You must obtain a CSA# before returning any instrument. Megohmmeter Models 6550 & 6555 - User Manual...
  • Page 77 NOTES:...
  • Page 78 NOTES:...
  • Page 79 NOTES:...
  • Page 80 99-MAN 100374 v22 AEMC Instruments ® 15 Faraday Drive • Dover, NH 03820 USA Phone: +1 (603) 749-6434 • +1 (800) 343-1391 • Fax: +1 (603) 742-2346 www.aemc.com © 2013 Chauvin Arnoux , Inc. d.b.a. AEMC Instruments. All Rights Reserved. ® ®...

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