July 22, 2005 M4000 Insulation Analyzer User Guide Doble Engineering Company 85 Walnut Street Watertown, Massachusetts 02472-4037 (USA) PN 500-0110 72A-1230 Rev.
Copyright © 2000 By Doble Engineering Company All Rights Reserved. This Manual is the sole property of the Doble Engineering Company (Doble) and is provided for the exclusive use of Doble Clients under contractual agreement for Doble Test Equipment and Services.
Preface Structure of this Manual This manual consists of 4 chapters and 4 appendices. “Introduction” introduces the functions and architecture of the M4000 Insulation Analyzer, as well as important safety considerations for its use. Chapter 2 “M4000 Software” provides an overview of M4000 software and its installation. Chapter 3 “Running M4000 Tests” describes procedures for executing specimen tests.
Conventions Used in this Manual The following terms and typographical conventions are used in the manual: Convention Description Windows Refers to the Microsoft Windows operating system, Version 98 or later. Click Quickly press and release the left mouse button. Double-click Quickly press and release the left mouse button twice without moving the mouse. Select Position the cursor on the desired option and click the left mouse button once.
M4000 Insulation Analyzer User Guide Measurement Principles ..................................................................................................................... 1-1 Safety .................................................................................................................................................. 1-1 M4000 Components ........................................................................................................................... 1-2 M4100 Instrument .........
2. M4000 Software July 22, 2005 Upgrading or Installing M4000 Software ........................................................................................... 2-1 Software Installation ........................................................................................................................... 2-1 M4000 Software ........................................................................................................................... 2-1 Doble Test Assistant (DTA) Software (Optional)....
Entering Clipboard Information ......................................................................................................... 3-1 Nameplate Information ................................................................................................................ 3-1 Administrative Information.......................................................................................................... 3-2 Test Conditions ...............................................................................
July 22, 2005 Troubleshooting from Diagnostics ................................................................................................... 4-21 Running Diagnostics................................................................................................................... 4-21 System Status.............................................................................................................................. 4-23 Calibration Verification..................................................
Replacing M4100 Components ....................................................................................................... 4-56 Returning Replaced Components............................................................................................... 4-57 Removing and Replacing the Front Panel Assembly................................................................. 4-58 Replacing the Guard Front Panel Board ....................................................................................
M4000 Firmware/Application Errors ................................................................................................ C-2 M4000 Communications Errors......................................................................................................... C-3 July 22, 2005 Appendix D. Part Numbers 6 72A-1230 Rev.
1. Introduction The M4000 Insulation Analyzer is used to determine the insulation quality of high-voltage power apparatus in the field. This portable test set incorporates automated Doble Testing with high accuracy and sensitivity, over a wide range of values, and with minimal susceptibility to electrostatic interference and noise. The M4000 generates a 0-12 kV test signal with an internal sine wave generator, a 3 kVA power amplifier and a step-up isolation transformer.
M4100 Instrument Both an operator and safety supervisor must be present when specimens are tested. Each person holds a safety switch that directly controls the output of the power amplifier through redundant electromechanical relays. In addition, the control processor can vote to disable the dc supply to the safety relay coils, thereby disabling the amplifier output if certain conditions are not met. NOTE For greater safety details, see ”Safety Practices – General Rules” on page 1-20.
M4000 Insulation Analyzer User Guide polarity reversal technique to reverse the effects of electrostatic interference. Selecting the Line Frequency Modulation Mode of operation will synchronize the time base generator to the crystal oscillator. Two tests will be run for each programmed test sequence. The first test is run at a frequency of 57 Hz and the second test is run at 63 Hz. The measured test results of each test are combined and averaged to give a 60 Hz equivalent test result.
M4100 Instrument July 22, 2005 Figure 1.1 Safety Strobe Two optional items found on the M4100 front panel are the M4151 Field Calibration Reference, which will be discussed below, and a Temperature and Relative Humidity sensor. The Temperature and Relative Humidity Sensor will process temperature and humidity readings at the time of test. Front Panel Figure 1.2 M4100 Instrument 1-4 72A-1230 Rev.
M4000 Insulation Analyzer User Guide Figure 1.3 M4200c Controller • • • • 72A-1230 Rev. F The M4200c Controller is the interface between the operator and the M4000 Insulation Analyzer. The color display, control, data storage, printing and communication functions are all provided by the M4200c Controller. This component is covered in detail in a separate manual.
M4200c Controller • The keyboard is a standard notebook-type keyboard with a flexible skin around the keys to prevent dirt and moisture from contaminating the internal electronics and causing failure of the keyboard. An external keyboard may be used in place of this keyboard. Access to the external keyboard connector is to the right of the video connector behind the access door on the left hand side of the M4200c Controller. Ext. Mouse Ext. Monitor Modem Ext. Keyboard July 22, 2005 LAN USB Figure 1.
M4000 Insulation Analyzer User Guide • • The M4200c has a built in USB port. Data may be stored on an internal hard drive or on a 3 1/2 - inch floppy disk via the floppy disk drive located in the front of the controller. Third-Party Controller Certain PC’s using a Windows-based operating system available from other suppliers can be used as a system controller in lieu of the M4200c controller. These alternative machines can be used to control M4000 operations.
Doble Standard Turns Ratio Capacitor Doble Standard Turns Ratio Capacitor This is an optional small portable capacitor that can be energized at 10 kV for performing turns ratio tests at high voltages with the M4000. Figure 1.6 Doble Turns Ratio Capacitor July 22, 2005 External Reference This is an optional feature allowing the tester to test apparatus at their full operating voltage using the M4000, providing a suitable external power source and reference are provided by the user.
July 22, 2005 M4000 Insulation Analyzer User Guide Figure 1.7 M4300 Transport Doble Test Assistant (DTA) Software Optional Doble Test Assistant® (DTA) software provides standardized apparatus test procedures and templates, data management, and optional expert system software for insulation condition assessment. See Chapters 2 and 3 for further details.
Storage and Moving Mode July 22, 2005 When using this interface, the standard M4000 safety switch and safety strobe are used. The necessary current and voltage cables are provided for connection to the transformer, along with the necessary software, so that this becomes a self-contained kit for this test. The user is only limited by the size of the variac provided. Figure 1.
M4000 Insulation Analyzer User Guide Controller Support Frame High Voltage Cable Cable Carry Bag M4100 Instrument Oil Test Cell July 22, 2005 M4200c Controller Figure 1.9 M4000 Insulation Analyzer in Storage Mode The recommended assembly steps for the Storage and Moving Mode is as follows: 1. Remove the M4200c Controller Support frame from the M4300 Transport. Lay the M4300 Transport down on its back, on a level surface so that the wheels and handle touch the surface. 2.
Storage and Moving Mode 3. Position the closed M4200c Controller upside down into the area with the projections of the top cover of the M4100 Instrument. Buckle and tighten the strap snugly around both the M4100 Instrument and the M4200c Controller. 4. Lift the M4300 Transport into the upright position. 5. Place the Documentation Bag and Cable Carry Bag on top of the M4100 Instrument top cover. Buckle and tighten the strap to secure. 6.
M4000 Insulation Analyzer User Guide Testing Mode When assembled in the Testing Mode, the M4300 Transport serves as the field desk for the M4000 Insulation Analyzer. The Testing Mode (Figure 1.10) was designed to take advantage of the M4100 instrument's concentrated cluster of connections, providing the user with a comprehensible testing setup and a user-friendly environment while testing.
Testing Mode The following instructions describe how to assemble the components of the M4000 Insulation Analyzer into the Testing Mode, from the Storage and Moving Mode: WARNING When preparing for a test, do not attach any test leads to the apparatus to be tested without first attaching them to the M4100 test set! 1.
M4000 Insulation Analyzer User Guide 10. Connect the two safety switches to the two receptacles labeled “Safety Switches” on the front panel of the M4100 Instrument. 11. Connect, as necessary, the red and blue Low-Voltage leads to the corresponding color coded receptacles labeled “LOW VOLTAGE LEADS”, on the front panel of the M4100 Instrument. To avoid unintended measurements, connect only the low voltage lead(s) to be used for the next text. 12.
M4000 PC Cable NOTE Data will be lost if all software application programs are not closed before the M4200c is powered down. To set the M4000 to the Storage and Moving Mode, reverse the previous setup procedure (”Testing Mode” on page 1-13), keeping in mind that the Safety Ground cable is the last cable to be disconnected from the M4100 instrument. Refer also to ”Storage and Moving Mode” on page 1-10.
M4000 Insulation Analyzer User Guide Transport, Storage and Shipping Transporting and Storing the M4000 The M4100 and M4200c should be properly secured within the vehicle when being transported locally, and mounted in the normal upright position (preferably a location, in a van or truck, which is not directly above an axle of the vehicle).
Shipping Instructions Shipping Instructions M4000 Test Set Always ship the M4000 and M4200c in separate containers. Ship in special packing cases provided by Doble or pack in cases with at least 4" of Styrofoam-type padding on all sides. The HV cable pothead-guide receptacle on the M4100 Instrument should be covered to keep out foreign material. On package, write: FRAGILE – PLEASE DO NOT DROP Accessory Case Pack leads, cables, and accessories in the cable bag furnished with the set.
M4000 Insulation Analyzer User Guide The preceding also applies to test sets that have been stored for prolonged periods. Safety Considerations Safety cannot be overemphasized when working on or around high voltage electrical apparatus.
Safety Practices – General Rules • Test Supervisor – This person is responsible for overseeing preparations for the test sequence, overseeing M4000 Insulation Analyzer operation, and ensuring that all safety precautions are put into practice. Safety practices followed should include company policies, applicable government regulations, and any special requirements related to use of the M4000 Insulation Analyzer. Safety Practices – General Rules 1.
M4000 Insulation Analyzer User Guide Grounding 1. The apparatus under test, its tank or housing, and the M4000 Insulation Analyzer must be solidly and commonly grounded or earthed. This also applies to any mobile equipment being tested. 2. When the M4000 Insulation Analyzer is permanently housed in a vehicle, the M4000 Insulation Analyzer ground should be bounded to the vehicle chassis, which in turn is grounded. 3. Exposed terminals of apparatus should not normally be allowed to “float”.
M4000 Connections M4000 Connections 1. The procedures described in the “Testing Mode” section of this chapter on page 1-13, for connecting and disconnecting the M4000 leads in their proper sequence should be observed and acted upon at all times. WARNING In particular, due to the presence of static charges from nearby energized lines, never touch the live end (hook) of the high voltage cable when moving leads. Never hold the High Voltage cable during a test. July 22, 2005 2.
M4000 Insulation Analyzer User Guide M4000 Operation 1. Both safety switches must be used in order to activate the test setup. One is to be controlled by the M4000 operator and the other by a second test crew member, designated the safety supervisor. (This person may be either the Operator’s Assistant or the Safety Observer.) 2.
M4000 Safety Features 6. The M4000 includes a safety strobe with a magnetic base that can be placed on a grounded steel structure where it is visible to substation personnel. The safety strobe is enabled and required to be connected when running a test by default. Although this can be defeated in the process of instrument configuration, this should be done only if the strobe is not working and cannot be used. 7. During operation, an audible beep is heard whenever high voltage is being applied.
M4000 Insulation Analyzer User Guide Safety Precautions Doble insulation analyzers require operation by at least two persons. The M4000 Insulation Analyzer operator has his/her own Operator's Safety Switch. A second switch, called the Extension Safety Switch, is provided. The cable for the Extension Safety Switch is equal in length to the High Voltage Test Cable. Both switches are of the spring-release type for quick action. With either switch off, all voltage to the High Voltage Test Cable is removed.
Safety Precautions for Various Types of Apparatus After the tests are completed, all test leads should be disconnected first from the equipment terminals and brought down to ground level before they are disconnected from the M4100 Instrument. The #6 copper test set ground should be the last lead to be disconnected from the set.
M4000 Insulation Analyzer User Guide Instrument Transformers In addition to isolating and grounding live terminal(s) of the primary winding, secondary fuses and other leads should be removed in order to completely and effectively isolate the unit from the system. This is especially important in the case of potential transformers. Voltage Regulators Check to ensure that there are no closed secondary links in order to eliminate the possibility of backfeed.
Safety Summary Safety Summary In summary, it is worth noting that many of the accidents that happen around high voltage apparatus and its associated conductors involve personnel who are familiar (perhaps too familiar) with high voltage equipment. Staying alert and ever watchful requires constant training and awareness of the inherent hazards. The greatest hazard is the possibility of getting on a “live” circuit. To avoid this requires constant vigilance – for oneself and for one's fellow workers.
2. M4000 Software Upgrading or Installing M4000 Software Your M4200c Controller comes with all necessary software pre-installed. This consists of the Windows XP operating system, the M4000 program, and for users of the Doble Test Assistant, the optional DTA program. You may also request the optional Leakage Reactance Test or External Reference Test software. You may need to install this software if you are loading it onto an office computer or laptop, upgrading from a previous version, or reinstalling it.
M4000 Software If you have already installed the current version of the M4000 software, and you only wish to add either or both of the optional features, Leakage Reactance and External Reference/Source testing, each of these disks contains its own setup function and can be installed separately as described below. To install the M4000 software and/or either of the optional features, follow this procedure: 1. Make sure all your existing test data is backed up! 2.
M4000 Insulation Analyzer User Guide • Launch M4000 at Startup: Select this option if this computer is dedicated to M4000 tests, since it automatically runs the M4000 program when starting the computer (If you have the icon for the old version of the software in your startup folder, remove it). Set the serial communications port to COM2: select this only if installing the software on an M4200c controller. July 22, 2005 • Figure 2.2 M4000 Software Installation Options 8.
M4000 Software • • • • NOTE Both LV leads must be inserted to run test: requires that both the red and blue leads be inserted into the test set to run a test (rarely used). Safety strobe is required to run test: In the event there is a failure of the strobe bulb or cable, this should be disabled so as to be able to continue testing without it. Safety switch must be released between tests: Serves to discourage user from artificially holding safety switch down for the duration of several tests.
M4000 Insulation Analyzer User Guide 13. Since you are able to have both the old and new versions on the same computer, you may wish to be able to switch back and forth at first. To avoid downloading firmware to the M4100 each time you switch, do the following: • • Find the M4i.x0, Bootblok.x0, and Loader.x0 files in the directory where the new version 3.0 is installed (the default is C:\Program Files\Doble\M4000). Copy these 3 files into the directory of the older version you are using.
Time/Date Format • • • From the Windows “Start” button, choose “Control Panel” from the “Settings” menu item. Double-click on the Mouse Icon, then select the “Motion” tab. Click the “Show Pointer Trails box, adjust the scale marker to “Long” and click OK. This will cause the mouse to leave a trail behind it when moved, and increase visibility in bright sunlight. Time/Date Format You may want to change the time/date format. The default is mm/dd/yyyy for date, and 12 hour format for time.
M4000 Insulation Analyzer User Guide Leakage Reactance 10. One Leakage Reactance file can now contain all tests in a series: Three Phase Equivalent, Per Phase, and tests on different taps. Data entry is now more intuitive. External Reference 11. On the External Reference form, both UST and GST tests can be stored all on the same form. 12. You may now store reversal readings on the same line and automatically average the results. 13.
Menu Bar Icon Description Enter DTA Field System Software, or select DTA from the Mode pull-down menu. With DTA, the second test mode available is DTA. See the DTA instruction manual for use of the DTA option. DTA contains specific forms for different apparatus types, along with an expert system to evaluate results. Since this is optional software, this icon will not be active if DTA software is not installed. Enter Clipboard Mode or select Clipboard from the Mode pull-down menu.
M4000 Insulation Analyzer User Guide Clipboard Test Mode To enter Clipboard test mode, click the the Mode pull-down menu item. icon, or select Clipboard from July 22, 2005 The following screen will appear: Figure 2.5 Clipboard Screen Clicking on the following icons will perform the described functions: Icon Description Open a File. If a Clipboard file is saved, it can be retrieved by clicking on this icon, pressing F9, or selecting Open from the File pull-down menu. Save a File.
Menu Bar Icon Description Enter the DTA Field System program. This can also be done by selecting DTA from the Mode pull-down menu item. Click to open a Clipboard screen, where tests may be run and recorded. Click to enter External Reference/Source Mode, or select External Reference/ Source from the Mode pull-down menu. Click to enter Leakage Reactance Test Mode, or select Leakage Reactance Test from the Mode pull-down menu. July 22, 2005 Run a single test.
M4000 Insulation Analyzer User Guide Icon Description Toggle sheet note. Click this icon to display or hide a note area for the entire clipboard sheet at the bottom of the screen. Toggle Nameplate. Click this icon to display or hide all but the test data. This allows the user to hide or display the Nameplate information, time, date, Administration and Test Condition buttons. About M4000 For Windows. This can also be chosen by selecting About M4000 For Windows from the pull down menu item.
Diagnostics Diagnostics This menu contains several self-test options, described in ”Running Diagnostics” on page 4-21. View Menu Commands here allow display or hiding of the: • • • • Toolbar (row of icons) Status Bar (along the bottom of the screen, it includes status of the Caps Lock and Num Lock functions, which should be off) Nameplate data fields Sheet note located just above the Status bar at the bottom of the screen.
M4000 Insulation Analyzer User Guide 2. Click the temperature correction icon Correction from the Tools menu. , or select Temperature 3. In the Temperature Correction window, fill in the rows on the clipboard screen to which you wish to apply the temperature correction. These rows must have temperature data associated with them for this function to work. 4. Select the Equipment Type and Sub-types where applicable. 5.
Clipboard Configuration Ramp Mode - Auto Ramp Mode raises the voltage automatically at a rate selected separately in the Clipboard Configuration and DTA Configuration. Manual Set Voltage allows raising the voltage by pressing the PGUP key to raise the voltage rapidly, the PGDN key to lower the voltage rapidly, the up arrow key to raise the voltage slowly, and the down arrow key to lower the voltage slowly.
Figure 2.7 Clipboard Configuration Test Type - If Line Frequency Modulation is selected, a test at ± 5% of the reference frequency, will be performed. This selection is desirable when testing in the presence of electrostatic interference. If Line Sync Reversal is selected, a test at the positive polarity and a test at the negative polarity in reference to the input voltage at the base frequency is performed.
DTA Field Configuration Loss Factor - There are two options available, Power Factor and Dissipation Factor, practically identical in routine usage. Dissipation Factor may be chosen when the user wishes to duplicate nameplate data from international manufacturers. However, the two are virtually identical at Power Factor readings below 5%. Units may be selected as Percent or Actual (and, for Dissipation Factor, mW/VAr). Power Factor is generally expressed in percent, and Dissipation Factor as Actual.
M4000 Insulation Analyzer User Guide Test Type - See Clipboard Configuration for a description of this item. Voltage Ramp Settings - See Clipboard Configuration for a description of this item. 72A-1230 Rev. F 2-17 July 22, 2005 Figure 2.
Instrument Configuration Instrument Configuration July 22, 2005 When the Instrument Configuration tab is selected, the following appears: Figure 2.9 Instrument Configuration Serial Port - It may be necessary to change this setting to accommodate laptops being used with the M4100. The M4200c uses COM2, and laptops usually use COM1. The “bits per second” setting should not be changed from the default 9600.
M4000 Insulation Analyzer User Guide Settling Time Delay- The time, at maximum test voltage, during which the M4000 samples the data. If it appears that excessive electrostatic interference is affecting test results, the settling time may be increased in order to sample the data over a longer period of time. To change the value in this field, click the mouse in this field and enter in a new value. • • • • Beeper - If the beeper is enabled, four beeps will sound when voltage is applied to a specimen.
Advanced Configuration July 22, 2005 Figure 2.10 Advanced Configuration Language: Choose from English, French, Spanish, and Portuguese, if selected for installation. Filter Type: The default is Slow, and should not be changed without consulting Doble. Capacitor Model: The default is Parallel, and should not be changed without consulting Doble. Inductor Model: The default is Parallel, and should not be changed without consulting Doble.
M4000 Insulation Analyzer User Guide Using Help When Help is selected, two options are presented: 1. Contents F1. 2. About M4000 For Windows... Contents July 22, 2005 The Help/Contents option opens the Help window: Figure 2.11 Help Window When Contents is selected, you can find how to use Help by pressing F1. The contents screen also has a series of buttons along its top: The Glossary button has topics that are specific (such as, Auto Mode Ramp Step).
About M4000 For Windows About M4000 For Windows Selecting this item displays the current version of M4000 Software and firmware. Printer Setup The default printer setting for your M4200c Controller is for a thermal printer. This enables the use of the M4200c Controller's built-in printer. If using a laptop, you must use Windows to add in the necessary printer drivers for your office printers. Printing July 22, 2005 To print a Clipboard form, select Print from the file pull-down menu item, or press F7.
3. Running M4000 Tests There are four test modes available with the M4000 software; all but Clipboard require optional software: • Clipboard Mode This is a generic form for recording and storing test results, nameplate information, weather conditions, test parameters, and notes, and is described below. A new graphing function allows test results to be graphed.
Administrative Information Entering this information is vital to properly identify the test and the equipment tested. Administrative Information July 22, 2005 Next to the Nameplate Section is an Administration button. When clicking this button, the following screen will appear: Figure 3.2 Administrative Information The following is an identification of these terms: Checked By The person who checked the results (if different from the user). Tested By The user of the M4000 Insulation Analyzer.
M4000 Insulation Analyzer User Guide Test Conditions Clicking on this button will show the following screen: The Weather is a pull down menu item with the selections accessed by clicking on the (down arrow icon). Entering Air Temperature and Humidity is unnecessary if using the Temperature Probe. If not, it is necessary to enter data in each field. In either case, Oil Temperature is required if testing oil-filled equipment. For transformers, use the top oil temperature.
Test Conditions Test Results Information July 22, 2005 Each line of the Clipboard test results contain the following fields: 3-4 Column Description No name... Number – indicates the test line (row) number. There are 36 rows, accessible by scrolling down with the down arrow key. TEST ID Test Identification – on each test line, you can enter a serial number or description of the test to be performed.
M4000 Insulation Analyzer User Guide Column Description Corr. Fact. Temperature Correction Factor. This column includes automatic application of temperature correction factors to the Clipboard Form. The default correction factor is 1.00. Corr%PF Corrected Percent Power Factor. In this column, you will find the results of the Measured Percent Power Factor Times the Correction Factor. You cannot enter or change results in this column. Cap. /Ind. Capacitance/Inductance.
Test Conditions Running Single and Multiple Clipboard Tests Either single or multiple tests (up to six at once) may be run. Each row or line of the test form represents one test, and for each test, the following information should be entered into the appropriate columns: • • • • Test ID Line Configuration (LC); the default value: A, Reference to 10 kV, Line Frequency Modulation, 60 Hz, is the most common (use B for a 50 Hz test).
M4000 Insulation Analyzer User Guide Raising Test Voltage Figure 3.4 Safety Screen This screen shows the parameters that will be used when the test is run. Double-check the cable connections and test parameters. If the test parameters are not correct, click on the Abort button or press the ESC key. When the parameters are correct, proceed with the test by depressing both safety push buttons, and either pressing the ENTER key or clicking on the Continue button.
July 22, 2005 Test Results Figure 3.5 Test in Progress The test will proceed automatically if Auto Ramp Mode is selected in the Clipboard Configuration, or will be ramped up by the operator if Manual Set Voltage is selected in the Clipboard Configuration. The digital values for these parameters will be shown to the right of the meters. The table on the screen describes test conditions and power factor test results. The line on the bottom of the screen displays the status of the test.
Figure 3.6 Test Complete There are choices listed at the bottom of the screen. An explanation of each key's function is as follows: Icon Description Pressing F1 will display “Screen Help” which is also available by clicking on this icon. Pressing F2 or FN+F11 will “Restart Test”, also available by clicking on this icon. Pressing F5 will “Accept Results” of the test(s) successfully performed, return to the Clipboard Form, and copy the results into the proper columns.
Clearing Test Results Icon Description Pressing F6 will “Discard Results” and returns you to the Clipboard Form. This is also available by clicking on this icon. Clearing Test Results July 22, 2005 After acceptance of tests, you can clear the test results by selecting Clear/Test Results from the Tools pull-down menu item, or, by pressing F10. When this is done, the following screen appears: Figure 3.
M4000 Insulation Analyzer User Guide Saving Test Results July 22, 2005 To save the nameplate and clipboard data, select the icon, or the Save As... item under the File menu. You will be prompted to select a file name. You may save in the selected folder (typically C:\doble\dta\data). Figure 3.8 Saving Clipboard NOTE As you add tests in Clipboard, you may want to periodically save the file to include added test data. All 200 lines may be saved under a single file name.
Running A UST Test 3. Click the icon. In the pop-up window, select whether you want a Histogram or a Trend. 4. If a Histogram is chosen, select the value you wish to plot. In Bins, select the number of ranges you wish to use to categorize your data, then click Draw. 5. If a Trend is chosen, select values to plot on the X and Y axes, then click Draw. 6. After you have drawn the graph, there are several icons along the top you can select to change the type of graph, or to refine it’s appearance.
M4000 Insulation Analyzer User Guide 1. Select “External Reference” from “Mode” on the M4000 menu bar, or click the External Source icon. 2. There are two test types: UST Measure Blue and GST Guard Blue. Select UST Measure Blue from the Test Mode column. 3. There will be one clipboard sheet per test sequence with a maximum number of tests in a sequence of 12. 4. Before running a test, enter the capacitance and power factor of the reference capacitor, and the maximum test voltage. 5.
Running a GST-Guard Test 10. When the message, “Test Done, Line (x)”, where (x) is the selected line number, press the F5 key to accept results. The mA, Watts, Percent Power Factor, and Capacitance/Inductance is recorded on the clipboard sheet. 11. At this point, a reversal could be run for this line (x). To do this, repeat steps 5 through 10, selecting the same line number, and selecting “Reversal”.
M4000 Insulation Analyzer User Guide 8. The M4000 is now ready to measure. The message “Set Test Voltage, Line (x), Then Press F3 To Measure”, appears (where (x) is the selected line number). 9. When you have set the external source to the desired voltage, press the F3 key. The message, “Do not change voltage - collecting data” appears. 11. At this point, if your test was a Specimen Test, you could run the Setup Correction Test for this line (x).
Running a GST-Guard Test Leakage Reactance Test (Optional Software) July 22, 2005 1. Click on the Leakage Reactance button to display the Leakage Reactance test. Fill in Location, Manufacturer, and Serial Number. 2. Click the Benchmark tab and enter the nameplate data; this includes the transformer impedance, and the MVA, kV, and tap positions at which it was measured in the factory. 3.
M4000 Insulation Analyzer User Guide DTA Mode The remainder of this chapter describes how to run tests in the Doble Test Assistant (DTA) Mode. For a complete description of the DTA program, refer to the DTA Field System for Windows Users Guide. It is recommended that this manual be available for reference. NOTE The DTA Mode is not available unless the DTA software has been purchased and has been loaded onto the M4000.
Running a GST-Guard Test DTA Data Manager July 22, 2005 Figure 3.12 DTA Data Manager If you are using the windows version of DTA for the first time, the working directory may appear as “C:\DOBLE\DTA\DATA”. If you have been using the DOS version of DTA, your working directory is “C\DTA\DATA”. If you wish to continue using the old directory, or wish to change the directory, proceed as follows: 1. Click the Source button under the icons at the top of the screen. 2.
M4000 Insulation Analyzer User Guide 5. In the resulting pop-up Source Directory window, type in the desired directory. 6. Click on “Dir List” if you want to browse through your computer files and locate another. Preparing for a DTA Test NOTE The M4000 software version 3.xx requires DTA software version 5.xx. 1. Click the New icon if no previous tests for this apparatus are available in DTA. This will create a new test and a new apparatus record. 3.
Running a GST-Guard Test 2. Start a test by clicking the icon, or by selecting from the Test menu, Run Test - M4000. The “Test Conditions” window will appear if you haven’t yet filled it in, with “Prb” in the air temperature field. This indicates that air temperature will be entered automatically by the M4000 Temperature and Relative Humidity Sensor. If “Prb” doesn’t appear, then the temperature/humidity sensor is not connected or is not working. An oil temperature is required for oil-filled equipment.
M4000 Insulation Analyzer User Guide 1. Select the “Abort” button to return to DTA and make changes. Make this choice if the test voltage needs to be changed. 2. Select the “Configure” button to change other test parameters, such as Frequency or Test Type. WARNING High voltage will be present after starting the test. Pressing the ESC or F4 key, or releasing a safety switch button, will turn off the high voltage. When the parameters are correct, proceed with the test by: 3.
Running a GST-Guard Test July 22, 2005 The following screen will appear: Figure 3.14 DTA Test In Progress The test will proceed automatically. The test specimen’s current, watts loss, and voltage will be displayed in three analog meters (horizontal bars) on the screen. The digital values for these parameters will be shown to the right of the meters. The table on the screen describes test conditions and test results. The horizontal bar at the bottom of the screen displays the status of the test.
July 22, 2005 M4000 Insulation Analyzer User Guide Figure 3.15 End of DTA Test 72A-1230 Rev.
Running a GST-Guard Test DTA Icons and Function Keys A list of function keys is displayed at the bottom of the screen after the test. In addition, a row of icons appears at the top of the screen. An explanation of each icon and key function follows: July 22, 2005 Selecting this icon or function key… Does this… icon or F1 key Displays screen Help icon or F2 or F11 key Restarts the test icon or F5 key Accepts test results, returns to the DTA form, and copies the results into the proper locations.
M4000 Insulation Analyzer User Guide July 22, 2005 Using A Resonator Figure 3.16 The Doble Resonator The Doble Type C Resonating Inductor is an iron-core reactor with an adjustable air gap, capable of resonating capacitances within a range of 0.05 to 1.0 microfarads at 60 Hz, and a range of 0.07-1.4 at 50 Hz. It is designed to extend the current range of Doble 10 kV Power-Factor Test Sets up to four Amps, assuming a lossless specimen, at voltages up to 10 kV.
Operating Procedure of Type C Resonating Inductor The Resonator, shown schematically in Figure 3.18, is contained in a metal housing measuring 24 x 17 x 15 inches, and weighs approximately 185 pounds. NOTE L adjustable from 7 to 140 Henries @60Hz. Counter dial calibrated per calibration chart supplied with each unit. Resonator chassis ground connected to test ground through cable shield or external test ground lead. July 22, 2005 Figure 3.
M4000 Insulation Analyzer User Guide Accurate tuning of the Resonator is obtained by turning the tuning control until the current taken from the 120 volt supply is a minimum. To do this in the Clipboard test mode, follow this procedure: 1. Set the test for Line Sync Reversal (Under the LC column, select C). 2. Connect the M4000, the resonator, and the specimen as shown in Figure 3.17 3. Select the “System” tab from the “Tools/Configuration” menu of the M4000. 4.
Operating Procedure of Type C Resonating Inductor General Description of Type C-1 Coupler - RIV Test Procedure NOTE Recommended for M2H only. RIV (Radio-Influence Voltage) measurements may be of value in detecting corona on all types of insulation systems. One of the most common applications of RIV is with reference to rotating machinery insulation. The RIV Coupler in Figure 3.
M4000 Insulation Analyzer User Guide Note that the circuit in Figure 3.19 is so arranged that, when the telephone plug is removed from the Coupler, the lower terminal of the coupling capacitor is connected to the test-setguard circuit. In this way, the Coupler may be left connected for power-factor tests. The telephone plug must be removed or the capacitor current and losses will be included in the measurement. Note that if the telephone plug (i.e.
Operating Procedure of Type C Resonating Inductor When the telephone plug is not connected to the Coupling Box, the lower terminal of the Coupling Capacitor is connected to the Test Set Guard Circuit. When the telephone plug is inserted into the receptacle, the Guard connection to the lower terminal of the Coupling Capacitor is removed and ground is applied to the low end of the 600 Ohm resistor via the barrel of the telephone plug. July 22, 2005 NOTE 3-30 72A-1230 Rev.
4. M4100 Instrument Troubleshooting Assigning A Trouble To The M4100 Instrument (Or The M4200c Controller) This section is intended to guide the operator’s initial steps in troubleshooting problems with the performance of the M4000 Insulation Analyzer. It outlines the resources available for diagnosis of problems and points to specific information in this chapter, or to the M4200c Controller manual.
Troubleshooting Resources Table 4.1 Quick Checks: Can You Answer Yes To These Items: Item The communications cable is securely connected between the M4200c (or third-party controller) and the M4100. Both the M4200c and M4100 are turned on and connected to an active, stable power source, appropriately rated and grounded. Both safety switches were held closed during a specimen test and released between tests as required.
M4000 Insulation Analyzer User Guide Resource Description M4100 Reference Symptoms The most basic troubleshooting tool is the observation of a symptom of trouble by the M4000 operator. It is often the starting point for more detailed diagnostics. page 4-12 Error Messages The M4000 Insulation Analyzer automatically recognizes certain exception conditions and displays corresponding error messages to the operator.
Avoiding Problems July 22, 2005 Table 4.3 Isolating the Problem Observation Suggested Action A numbered error message appears in the display. The M4100 is likely to be at fault. See ”Troubleshooting from Error Messages” on page 4-16. Also, click on Help for further guidance. An un-numbered error message appears in the display. The M4200c is likely to be at fault. See ”Troubleshooting from Diagnostics” on page 4-21. Also, click on Help for further guidance.
M4000 Insulation Analyzer User Guide • • • • • The following preventive maintenance actions are suggested: • • • • • • • Periodically check all screw connections for tightness. Examine the High Voltage Test Cable periodically and check for corrosion, loose screws, gouges or cuts in the outer protective jacket, and for signs of tracking on the inboard and outboard potheads. Examine the inboard connectors of the various leads and accessories periodically.
July 22, 2005 Avoiding Problems 4-6 Section Purpose Page Reference Overview of M4100 Get introduced to the M4100 Instrument page 4-7 Overview of Individual Replaceable Components Identify all customer-replaceable components of the M4100 page 4-9 Troubleshooting from Symptoms Obtain detailed guidance on troubleshooting, starting with observed symptoms of malfunction page 4-12 Troubleshooting from Error Messages Obtain detailed guidance on troubleshooting, starting with observed error messages
M4000 Insulation Analyzer User Guide Purpose Page Reference Amplifier Assembly page 4-63 Guard Mode Switch Board page 4-66 Timing Board page 4-68 DSP/CPU Board page 4-70 Safety Board page 4-72 Main Reference Assembly page 4-74 Guard Board page 4-76 Low Voltage Power Supply Board page 4-78 Heater/Temperature Controller Board page 4-80 Field Calibration Reference page 4-82 I/O Protection Board page 4-83 Transformer page 4-85 HV Pothead page 4-91 Fan Filter page 4-93 Fan page 4-
4-8 +5V RS/232 Figure 4.1 M4100 Block Diagram 72A-1230 Rev.
M4000 Insulation Analyzer User Guide Overview of Individual Replaceable Components An overview of each of the instrument’s replaceable components is provided below. While a few other M4100 components exist, they are not field-replaceable. 03D-1056 Guard Front Panel Board 04D-0536 Amplifier Assembly 03D-1055-01 Guard Mode Switch Board 04D-0551 Timing Board 04D-0533 DSP/CPU Board 04D-0520 72A-1230 Rev.
Avoiding Problems Safety Board 04D-0544 Main Reference Assembly 04D-0583 Guard Board July 22, 2005 04D-0527 Low Voltage Power Supply Board 384-0138 Heater/Temperature Controller Board 04D-0547 Field Calibration Reference (Optional) 04D-0524 4-10 The Safety Board latches off the Amplifier Assembly and opens the safety relays when a potential operator safety hazard or hardware overload is detected. It also reports safety status and receives safety commands from the DSP/CPU Board.
M4000 Insulation Analyzer User Guide I/O Protection Board 04D-0546 Transformer 03D-1054 HV Pothead 03C-0056-07 Fan The Transformer steps up the voltage output of the Amplifier Assembly to a maximum of 12 kV for application to the specimen under test. The front panel-mounted HV Pothead is a connector providing a high-voltage connection to the specimen under test. The fan cools the interior of the M4100 by moving air through the instrument when necessary. It is normally not on.
Avoiding Problems Troubleshooting from Symptoms This section provides M4100 troubleshooting guidance based upon observed malfunction symptoms. Find the observed symptom in Table 4.4, and take the suggested action(s) to solve the problem. July 22, 2005 Table 4.4 M4100 Troubleshooting from Symptoms Symptom Suggested Action M4100 does not power up properly In a normal power-up sequence: • Front panel Power indicator comes on and stays on.
M4000 Insulation Analyzer User Guide Table 4.4 M4100 Troubleshooting from Symptoms (Continued) Symptom Suggested Action Cannot begin a test; the test set trips, with an overcurrent error message 1.
Avoiding Problems Table 4.4 M4100 Troubleshooting from Symptoms (Continued) Symptom Suggested Action Instrument takes an unusually long time to make a measurement or never stops ranging 1. Check and clean connections to the specimen. Use a clip lead between the High Voltage Test Cable and specimen to insure good contact. 2. Check the High Voltage Test Cable by referring to ”Checking the High Voltage Test Cable” on page 4-42. Then check the HV Pothead. If either component is faulty, replace it. 3.
M4000 Insulation Analyzer User Guide Symptom Suggested Action Negative watts obtained in UST or GST-Guard circuit This may simply be due to surface dirt and moisture. Clean and dry the specimen’s surface and retest it. This condition is most often found when testing bushing C1 insulation, transformer Ch1 insulation, or rotating machinery interwinding insulation.
Avoiding Problems Troubleshooting from Error Messages The M4000 Insulation Analyzer automatically recognizes certain exception conditions and displays corresponding error messages to the operator. Most error messages that pertain to the M4100 are numbered. These are described below. NOTE A complete list of all M4000 error messages appears in Appendix C.
M4000 Insulation Analyzer User Guide Table 4.5 Error Messages (Continued) # Error Message Suggested Action 33 One or both safety switch cables disconnected 1. Clean all cable terminations. 34 2. If the problem persists, replace the I/O Protection Board (see”Replacing the I/O Protection Board” on page 4-83) 1. Check the AC power source for abnormally low voltage. 3. If the problem is still unresolved, replace the Amplifier Assembly and rerun its diagnostic.
Avoiding Problems Table 4.5 Error Messages (Continued) # Error Message Suggested Action 39 Phase Lock Loop Not Locked 1. If a portable generator is being used to power the M4000, stabilize its output frequency by adding a load, such as a space heater, to load the generator. 2. If the symptom occurs in line sync mode only, replace the Amplifier Assembly. If it occurs in both state modes, reseat the W8 cable connectors between the Guard Board and Guard Mode Switch Board (see Figure 4.26 on page 4-53).
M4000 Insulation Analyzer User Guide Table 4.5 Error Messages (Continued) # Error Message Suggested Action 53 One or Both Low Voltage Leads Disconnected 1. If this error is displayed during Calibration Verification, rerun the test at a temperature above freezing. 2. Clean all cable terminations. 3. If the problem persists, replace the Guard Front Panel Board (see ”Replacing the Guard Front Panel Board” on page 4-61). 54 Overcurrent Occurred Input current is excessive. 1.
Avoiding Problems Table 4.5 Error Messages (Continued) # Error Message Suggested Action 133 No Response from M4000, Check Connections 1. Make sure the M4100 is turned on. & 137 Invalid Message Number 2. For All Error Numbers in the 130’s: If the error appears during a test, there may be another application running on your computer which is interfering with communication to the M4100. Contact Doble for analysis and solution to this problem.
M4000 Insulation Analyzer User Guide Troubleshooting from Diagnostics The M4000 test set supports automated diagnostic tests that are useful in validating system operation and troubleshooting problems that may occur. Diagnostics should be run on a regular basis to ensure that the M4000 Insulation Analyzer is functioning properly. The Diagnostics should also be used to investigate potential causes of error messages. Running Diagnostics Diagnostics can be accessed from the Diagnostics pull-down menu.
Running Diagnostics The first six of these tests are applicable to the M4100; the last one is not. Use of the Communications Loopback Test is described in ”Communications Loopback Test” on page 4-40. Follow these recommendations in deciding when to run each test: Diagnostic Test Run the test when suggested by a displayed message, when indicated in a troubleshooting flow chart or table, or: System Status * Run this test if you are experiencing any malfunction or error. Calibration Verification* 1.
M4000 Insulation Analyzer User Guide Once the operator specifies a particular diagnostic test to run, the following function keys are available for use: F1 Display Help contents F2 Run the selected diagnostic Following are descriptions of each of the five Diagnostics tests that are applicable to the M4100. System Status NOTE Do not run this test when the temperature is below freezing.
July 22, 2005 System Status Figure 4.3 System Status Test Results This test is passed when every item’s status is reported as Enabled. Any other result has the following implications: Guard Status Disabled Critical: This condition must be corrected before testing continues. Corrective Procedure: Replace the Guard Board and run the Field Recalibration Test.
M4000 Insulation Analyzer User Guide • • Field Reference Status Disabled Measurement error uncertainty (1% Capacitance relative and 0.15% Power Factor absolute) Retest failure in Subsystem Diagnostics Non-critical: This condition must be corrected before Calibration Verification can be performed. Corrective Procedure: Replace the Field Calibration Reference.
Calibration Verification If none of the above applies and all statuses are ENABLED the problem is likely to be the inability to successfully complete a Calibration Verification test. Run the diagnostic and the results should indicate the problem. NOTE If the corrective procedures described do not fix the System Status error then Call Doble.
July 22, 2005 M4000 Insulation Analyzer User Guide Figure 4.4 Calibration Verification Initial Screen 2. Press F2. 3. Follow the on-screen directions, as shown in Figure 4.5. Figure 4.5 Calibration Verification Instructions Connections for the Calibration Verification are shown in Figure 4.6 and Figure 4.7.
Calibration Verification July 22, 2005 Figure 4.6 Setup for Blue Resistor Test Figure 4.7 Setup for Red Resistor Test There is a test abort criterion described in the first test of each setup. The test abort allows the operator to correct a setup error and then restart from the point where the error was first detected, without losing successfully completed test information. 4-28 72A-1230 Rev.
M4000 Insulation Analyzer User Guide July 22, 2005 At the conclusion of the Calibration Verification, a summary table like that shown in Figure 4.8 will be displayed. Figure 4.8 Calibration Verification Results The summary table can be printed or saved as a text file. Both options are available on the File pull-down menu. Calver.log File Upon completion of the Calibration Verification, the M4000 software creates a file named Calver.log and stores it in the DTA directory.
Calibration Verification Test Date: 06/29/95 Test Time: 10:14:45 System Serial Number = 59400175 Test Fail: 3mA SinTheta = -0.
M4000 Insulation Analyzer User Guide Field Recalibration Run this test if any of the Calibration Verification test ratings are Re-Cal or Fail. With the M4100 Field Calibration feature, calibration can be done in the field for 7 of the current ranges if the optional M4151 Field Calibration Reference is used, and for 3 ranges if the optional M4150 Field Calibration Reference is used. The optional Field calibration Reference, if available, is located on the face of the M4100 Instrument.
Field Recalibration For situations demanding more complete calibration, Doble offers the M4151 Field Calibration Reference. Using this option, seven current ranges can be checked and calibrated (leaving only the three high current ranges used with a resonator unchecked). The seven ranges tested by the M4151 are 300 µA, 1 mA, 3 mA, 10 mA, 30 mA, 100 mA, and 300 mA.
M4000 Insulation Analyzer User Guide Figure 4.13 Field Recalibration Instructions There is a test abort criterion described in the first test of each setup. The test abort allows the operator to correct a setup error and then restart from the point where the error was first detected, without losing successfully completed test information. At the conclusion of the Field Recalibration, a summary table like that shown in Figure 4.14 will be displayed. Figure 4.14 Field Calibration Results 72A-1230 Rev.
Subsystem Diagnostics The summary table can be printed or saved as a text file. Both options are available on the File pull-down menu. Fieldcal.log File Upon completion of the Field Recalibration, the M4000 software creates a file named Fieldcal.log and stores it in the DTA directory. This file summarizes information on test aborts and test failures. Subsystem Diagnostics Subsystem Diagnostics checks numerous M4100 components.
July 22, 2005 M4000 Insulation Analyzer User Guide Figure 4.15 Subsystem Diagnostics Results Results can be printed either in brief or in full. To print the test results: 3. Select Print from the File menu. The screen shown in Figure 4.16 appears, allowing a choice of the level of detail to be printed. 72A-1230 Rev.
July 22, 2005 Subsystem Diagnostics Figure 4.16 Print Detail A Brief Report contains the text that is displayed on the results screen. If Detailed Report is selected, all the fields shown above become active, allowing the operator to select which specific components’ test results to print. In the example above, since the Safety Board diagnostic failed, that result is selected for a full printout. The printed test result resulting from a typical choice is provided in Figure 4.17.
July 22, 2005 M4000 Insulation Analyzer User Guide Figure 4.17 Component Test Result, Subsystem Diagnostics 72A-1230 Rev.
M4100 Component List M4100 Component List The M4100 Component List provides a listing of recognized system components, which is helpful in diagnosing certain problems. The listing characterizes each component as to its identity and calibration history. To generate this list: 1. Select M4100 Component List from the Diagnostics pull-down menu. 2. Press F2. July 22, 2005 Figure 4.18 shows an example of the resulting list. Figure 4.
M4000 Insulation Analyzer User Guide Thermal Profile The Thermal Profile diagnostic displays internal and external temperatures measured by the M4100. NOTE To monitor external parameters the Remote Sensor must be connected to the M4100. To run a Thermal Profile: 1. Select Thermal Profile from the Diagnostics pull-down menu. 2. Press F2. July 22, 2005 As the profile is running, continuously updated temperature and humidity values are displayed on the screen, as exemplified in Figure 4.19. Figure 4.
Communications Loopback Test Communications Loopback Test The Communications Loopback Test is run to assure that proper communications exist between the M4200c and M4100. It should be run whenever a communications error occurs. This test verifies the serial link between the M4200c and the M4100 using two external Burndy connector pieces (male and female types) included in the Accessories Bag. If these connectors cannot be located, contact Doble (see items 29 & 30, page A-3).
M4000 Insulation Analyzer User Guide 2. Follow the directions provided in Figure 4.21, i.e., remove the test plug and connect the communications cable in its place, then attach the other test plug to the far end of the cable. Press OK to continue. A screen like that shown in Figure 4.22 will appear when the second test is complete. In this example both loopback tests passed. Figure 4.22 Communications Loopback Test, Final Results 72A-1230 Rev. F 4-41 July 22, 2005 Figure 4.
Checking the High Voltage Test Cable Running Other Tests Certain additional tests can be run without gaining access to the M4100 interior. Any of the following tests can and should be run based upon an indicated error message, symptom or diagnostic test result. Checking the High Voltage Test Cable Most of the difficulties encountered with the High Voltage Test Cable are of a mechanical nature, external, and easily identified.
M4000 Insulation Analyzer User Guide Continuity The center conductor and shield should each have less than 1-ohm resistance. The center conductor’s resistance is measured between the clip and Pin 3 of the inboard connector. In order to check the shield, penetrate the outer insulation of the lead (approximately 1-2 inches from the outboard clip) using a thin/sharp pointed electrode (pointed ohmmeter probes are suitable for this purpose).
Voltage Verification The characteristic charging current (capacitance) and watts-loss of the Liquid Insulation Cell should be measured whenever a new instrument or cell is received, and the test data should be recorded for future reference. The test connections and procedure are the same as for testing a liquid-insulation sample, except that the test is conducted in both the UST and GST modes. The cell should be clean and dry, and a stable voltage source should be utilized.
M4000 Insulation Analyzer User Guide • • Select the Clipboard mode to perform the test and configure a test with the potential of 500V. The test must be performed in Manual mode, and any test circuit will do. Raise the test voltage to 500V and record the DVM reading on the Calibration Verification Certificate. July 22, 2005 The setup for the test is shown in the following diagram: 72A-1230 Rev.
Removing the Front and Top Covers Accessing M4100 Components DANGER Ensure that the AC power cable is disconnected prior to removing any of the M4100 covers. To avoid static discharge, ground yourself and the test set before handling any circuit boards.
M4000 Insulation Analyzer User Guide The resulting top view of the instrument is as shown in Figure 4.23. Low Voltage Power Supply Board (under corner brace) Amplifier Assembly (chassis ground) Transformer (connected to guard) Transformer Cover (chassis ground) Main Reference Assembly (connected to guard) Figure 4.23 M4100 Interior View 72A-1230 Rev.
Removing the Card Cage Cover Removing the Card Cage Cover The card cage cover must be removed to gain access to any of the following components: • • • • • NOTE DSP/CPU Board Guard Board Guard Mode Switch Board Safety Board Timing Board These PC boards are sensitive to static electricity. Observe the following precautions when handling them.
M4000 Insulation Analyzer User Guide Low Voltage Power Supply Board W8 Connector DSP/CPU Board W11 Connector Timing Board W9 Connector Safety Board Guard Mode Switch Board July 22, 2005 Guard Board connectors, lowvolt. power supply Figure 4.24 M4100 Card Cage NOTE When replacing boards, the board you need to remove may be underneath a cable attached to another board. If this is the case, release the cable, note where it was connected, and later reconnect it. 72A-1230 Rev.
Fan Operation M4100 Internal Checks Certain internal checks can be performed quite easily, avoiding more complicated measures. Many of these checks can be done with the M4100 unpowered. A few require that AC power be applied with the covers off. DANGER If re-application of power is necessary to perform an internal check, follow the procedural instructions carefully to minimize the risk of electrical shock. In particular, make certain that only voltmeter probes come in contact with internal test points.
M4000 Insulation Analyzer User Guide Low-Voltage Power Checkout Outputs of the Low Voltage Power Supply Board are readily measured at test points accessible on the Heater/Temperature Controller Board (Figure 4.41 on page 4-80), which is mounted directly on the Low Voltage Power Supply Board. Check the following test points for the specified DC voltages: TP1 Ground reference TP2 -5 V TP3 +15 V TP4 +5 V (>4.
LVPS Fuses LVPS Fuses The fuses for the Low Voltage Power Supply Board (LVPS) are located on that board. To access the board, remove the triangular metal plate from the left rear corner of the M4100. The Low Voltage Power Supply Board and Heater/Temperature Board Assembly (Figure 4.25) is then removed after disconnecting the cable from the top of the board.
M4000 Insulation Analyzer User Guide W8/W9/W11 Cable Checkout Check and reseat the W8, W9 and W11 cable connectors, which are identified in Figure 4.26. W8 Connector July 22, 2005 W11 Connector W9 Connector Figure 4.26 Card Cage 72A-1230 Rev.
Orange Cable Checkout Orange Cable Checkout Check the Orange Cable (Figure 4.27) for proper seating. It should not be shorting to the chassis, and its insulation should be intact. Amplifier July 22, 2005 Transformer (cover removed) Main References Assembly HV Pothead Field Calibration Reference box Orange Cable Figure 4.27 M4100 Chassis, Covers Removed Transformer Checks The metal sheet over the transformer (Figure 4.27) is at chassis ground, while the reference box is at guard potential.
M4000 Insulation Analyzer User Guide W46 Cable Checkout The W46 cable is a 12-conductor cable with a white connector on each end. It is located on the Heater/Temperature Controller Board, which is mounted to the Low Voltage Power Supply Board. Take the following steps to check the W46 cable: 1. Locate and remove the Low Voltage Power Supply Board, referring to ”LVPS Fuses” on page 4-52. 2. Disconnect and reseat both connectors on the W46 cable (Figure 4.25 on page 4-52). July 22, 2005 3.
W46 Cable Checkout Replacing M4100 Components Instructions are provided here for the replacement of M4100 internal, replaceable components for the purpose of diagnosing malfunctions or eliminating problems. NOTE It is important to follow the systematic troubleshooting guidelines in Chapter 4 and elsewhere in Chapter 6 before replacing any M4100 component. Forethought will reduce the difficulty and time required to fix a problem.
M4000 Insulation Analyzer User Guide Returning Replaced Components To gain full credit for a replaced component, it must be returned to Doble within 30 days of the replacement component’s delivery. To return a replaced component: • • • • • • RWO#: A Repair Work Order Number assigned to each part by Doble for tracking purposes.
Removing and Replacing the Front Panel Assembly Removing and Replacing the Front Panel Assembly The Front Panel Assembly is located on the front of the instrument. The Front Panel Assembly must be removed in order to replace it and to gain access to the Main Reference Assembly, the Guard Front Panel Board, and the I/O Protection Board. Keep screws that are removed together in a safe location for re-assembly. Take the following steps to remove and replace the Front Panel Assembly: 1.
M4000 Insulation Analyzer User Guide Nut Screws 5. Remove one nut located behind the HV Pothead (Figure 4.29), using a nut driver. 6. Remove two screws in the Field Reference Calibration box. 7. Remove the ten self-locking screws that hold the front panel in place using a #8 Torx screwdriver. NOTE These screws can be difficult to remove. If any of them binds during extraction, lubricate its front and the rear surfaces with a drop of machine oil.
Removing and Replacing the Front Panel Assembly Guard Front Panel Board I/O Protection Board HV Pothead Field Calibration Box Chassis Figure 4.30 M4100 Interior View, Front Panel Removed July 22, 2005 10. To reinstall the Front Panel Assembly, first unpack the replacement unit (or locate the existing one). Position it on the front of the instrument. Reconnect the two ribbon cables coming from the I/O Protection Board. 11.
M4000 Insulation Analyzer User Guide Replacing the Guard Front Panel Board Note the location of the Guard Front Panel Board in Figure 4.30 on page 4-60. It is located immediately behind the Front Panel Assembly. Take the following steps to replace it: 1. If it has not already been done, remove the Front Panel Assembly. See Steps 1-8, ”Removing and Replacing the Front Panel Assembly” on page 4-58. NOTE Do not remove the replacement board from its anti-static bag until instructed to do so.
Replacing the Guard Front Panel Board 6. Disconnect two connectors on cables W27 and W28. Each connector has three wires; W27 has one red and two black wires; W28 has one blue and two black wires. 7. Carefully lift the Guard Front Panel Board out, easing the wires through the holes. 8. Unpack the replacement Guard Front Panel Board and place the new board into the instrument. 9. Replace four #8 nuts that hold the board in place using a 11/32” socket wrench. 10.
M4000 Insulation Analyzer User Guide Replacing the Amplifier Assembly Note the location of the Amplifier Assembly in Figure 4.23 on page 4-47. Take the following steps to replace it: 1. If it has not already been done, remove the card cage cover. See ”Removing the Card Cage Cover” on page 4-48. 2. Remove the Nomex insulator shield to access the four deep-set screws (described in Step 3). The Nomex insulator is a white, flexible board located between the Transformer and the Amplifier Assembly.
Replacing the Amplifier Assembly Top Fan Screws Side Screws July 22, 2005 Figure 4.33 Amplifier Assembly, Additional Screw Locations 5. Remove two Phillips screws (Figure 4.33) holding the top cover of the amplifier and chassis in place using a Phillips-head screwdriver. 6. Disconnect the ribbon cable (W7) from the Guard Board, which is located in the card cage. 7.
M4000 Insulation Analyzer User Guide 11. Tighten one of the captive screws by inserting the 15”-long, flat-blade screwdriver into one of the notches at the top of the assembly, and reach down to tighten the screw. With the first screw in place, use your hands to push the assembly towards the opposite end (away from the screw). 12. Tighten the remaining three captive screws using the 15”-long, flat-blade screwdriver. 13. Replace the three screws on the rear panel using the Phillips head screwdriver.
Replacing the Guard Mode Switch Board Replacing the Guard Mode Switch Board Note the location of the Guard Mode Switch Board in Figure 4.24 on page 4-49 and in Figure 4.34 below. Take the following steps to replace it: 1. If it has not already been done, remove the card cage cover. See ”Removing the Card Cage Cover” on page 4-48. The Guard Mode Switch Board will be visible as in Figure 4.34. W8 Connector Guard Mode Switch Board W11 Connector July 22, 2005 W9 Connector connectors, lowvolt.
M4000 Insulation Analyzer User Guide 5. Remove the replacement Guard Mode Switch Board from its anti-static bag and guide it into the slot. Press down evenly on the insides of the PC extractors until the board is firmly seated. 6. Reattach the two ribbon cables to the board (W8 to J8 and W12 to J5). 7. Reattach the four cables to the board (W9 to J2, W11 to J1, W13 to J3, and the unlabeled cable to J6). 8. Replace the card cage cover by reversing the steps in ”Removing the Card Cage Cover” on page 4-48.
Replacing the Timing Board Replacing the Timing Board Note the location of the Timing Board in Figure 4.24 on page 4-49 and in Figure 4.35 below. Take the following steps to replace it: 1. If it has not already been done, remove the card cage cover. See ”Removing the Card Cage Cover” on page 4-48. The Timing Board will be visible as in Figure 4.35. July 22, 2005 Timing Board connectors, lowvolt. power supply Figure 4.
M4000 Insulation Analyzer User Guide 4. Replace the card cage cover by reversing the steps in ”Removing the Card Cage Cover” on page 4-48. July 22, 2005 5. Replace the top and front covers by reversing the steps in ”Removing the Front and Top Covers” on page 4-46. 72A-1230 Rev.
Replacing the DSP/CPU Board Replacing the DSP/CPU Board Note the location of the DSP/CPU Board in Figure 4.24 on page 4-49 and in Figure 4.36 below. Take the following steps to replace it: 1. If it has not already been done, remove the card cage cover. See ”Removing the Card Cage Cover” on page 4-48. The DSP CPU Board will be visible as in Figure 4.36. July 22, 2005 DSP/CPU Board connectors, lowvolt. power supply Figure 4.
M4000 Insulation Analyzer User Guide 5. Reattach the ribbon cable (W5) to the board. 6. Replace the card cage cover by reversing the steps in ”Removing the Card Cage Cover” on page 4-48. July 22, 2005 7. Replace the top and front covers by reversing the steps in ”Removing the Front and Top Covers” on page 4-46. 72A-1230 Rev.
Replacing the Safety Board Replacing the Safety Board Note the location of the Safety Board in Figure 4.24 on page 4-49 and in Figure 4.37 below. Take the following steps to replace it: 1. If it has not already been done, remove the card cage cover. See ”Removing the Card Cage Cover” on page 4-48. The Safety Board will be visible as in Figure 4.37. July 22, 2005 Safety Board connectors, lowvolt. power supply Figure 4.
M4000 Insulation Analyzer User Guide 5. Reattach the three ribbon cables to the board (W4 to J1, W6 to J3, and W7 to J2). 6. Replace the card cage cover by reversing the steps in ”Removing the Card Cage Cover” on page 4-48. July 22, 2005 7. Replace the top and front covers by reversing the steps in ”Removing the Front and Top Covers” on page 4-46. 72A-1230 Rev.
Replacing the Main Reference Assembly Replacing the Main Reference Assembly Note the location of the Main Reference Assembly in Figure 4.30 on page 4-60. Take the following steps to replace it: 1. If it has not already been done, remove the Front Panel Assembly. See Steps 1-8, ”Removing and Replacing the Front Panel Assembly” on page 4-58. (The Front Panel Assembly must be removed to replace the Main Reference Assembly, but the two assemblies are not attached.
M4000 Insulation Analyzer User Guide 5. Remove six screws, along with internal lock washers and flat washers, using a flat-blade screwdriver. These screws are located on the perimeter of the board (Figure 4.38). 6. With your fingers on the edges of the board, lift the board slightly, tilt it back, then lift it straight up and out. (Tilting the board avoids contact with screws inside the Main Reference Assembly). 7.
Replacing the Guard Board Replacing the Guard Board Note the location of the Guard Board in Figure 4.24 on page 4-49 and in Figure 4.39 below. Take the following steps to replace it: 1. If it has not already been done, remove the card cage cover. See ”Removing the Card Cage Cover” on page 4-48. The Guard Board will be visible as in Figure 4.39. W8 Connector W11 Connector July 22, 2005 W9 Connector Guard Board connectors, lowvolt. power supply Figure 4.
M4000 Insulation Analyzer User Guide 5. Remove the replacement Guard Board from its anti-static bag and guide it into the slot. Press down evenly on the insides of the PC extractors until the board is firmly seated. 6. Reattach the two connectors to the board (W9 to J2 and W9 to J3). 7. Reattach the ribbon cable to the board (W8 to J1). 8. Replace the card cage cover by reversing the steps in ”Removing the Card Cage Cover” on page 4-48. July 22, 2005 9.
Replacing the Low Voltage Power Supply Board Replacing the Low Voltage Power Supply Board Note the location of the Low Voltage Power Supply Board in Figure 4.23 on page 4-47. Take the following steps to replace it: NOTE Do not remove the replacement board from its anti-static bag until instructed to do so. See the Note on page 4-48 for additional ESD precautions. July 22, 2005 1. Remove four screws (Figure 4.40) using a Phillips-head screwdriver.
M4000 Insulation Analyzer User Guide 6. Lift the board out. 7. Remove the replacement Low Voltage Power Supply Board from its anti-static bag and place it in the Instrument. 8. Reconnect the two cables and reposition any other cables previously moved as necessary. 9. Replace the Nomex insulator shield. 10. Place the corner brace back into position and replace the four screws to secure the brace using a Phillips head screwdriver. July 22, 2005 11.
Replacing the Heater/Temperature Controller Board Replacing the Heater/Temperature Controller Board The Heater/Temperature Controller Board is the green board attached to the Low Voltage Power Supply Board. Before replacing the Heater/Temperature Controller Board, you must first remove the entire, two-board assembly from the instrument. Take the following steps to replace the Heater/Temperature Controller Board: NOTE Do not remove the replacement board from its anti-static bag until instructed to do so.
M4000 Insulation Analyzer User Guide 3. Release the two connectors leading to cables W45 and W46. 4. Remove the new Heater/Temperature Controller Board from its anti-static bag and position it onto the Low Voltage Power Supply Board. Place a spacer between the two components at each screw position. 5. Reconnect the two connectors. 6. Replace the four screws that join the components together using a Phillips-head screwdriver. July 22, 2005 7.
Replacing the Optional Field Calibration Reference Replacing the Optional Field Calibration Reference The Field Calibration Reference, if present, is mounted to the instrument’s front panel. Take the following steps to replace it: 1. Unscrew four captive screws (Figure 4.42) using a Phillips-head screwdriver. July 22, 2005 Screws Figure 4.42 Field Calibration Reference, Screw Locations 2. Pull out the Field Calibration Reference. 3.
M4000 Insulation Analyzer User Guide Replacing the I/O Protection Board Note the location of the I/O Protection Board in Figure 4.30 on page 4-60. Take the following steps to replace it: 1. If it has not already been done, remove the Front Panel Assembly. See Steps 1-8, ”Removing and Replacing the Front Panel Assembly” on page 4-58. Place the Front Panel Assembly face down on the bench. NOTE Do not remove the replacement board from its anti-static bag until instructed to do so.
Replacing the I/O Protection Board Ground to Upper Left Standoff Figure 4.44 I/O Protection Board, Cable Connections 5. Carefully lift the I/O Protection Board off the Front Panel Assembly. July 22, 2005 6. Unpack the replacement I/O Protection Board from its anti-static bag and place the new board onto the Front Panel Assembly. 7. Replace six screws that attach the I/O Protection Board to the Front Panel Assembly using a Phillips-head screwdriver.
M4000 Insulation Analyzer User Guide Replacing the Transformer Note the location of the Transformer in Figure 4.23 on page 4-47. NOTE Due to the vibration the instrument encounters in the field, Doble now recommends replacing the originally installed whiz nuts with elastic stop nuts. When replacing the Transformer, check to see if it is mounted using whiz nuts. If so, mount the replacement Transformer with the more reliable elastic stop nuts. Take the following steps to replace the Transformer: 1.
Replacing the Transformer Screws July 22, 2005 Figure 4.46 Transformer Cover, Screw Locations on Side Panel • • Remove four screws and washers, located on the top of the Transformer cover, using a flat-blade screwdriver Lift the cover off. White grommets will come off with the cover. Keep all screws, washers, and grommets together in a safe place. Figure 4.27 on page 4-54 shows the instrument with the Transformer cover removed. 3. Replace the whiz nuts with elastic stop nuts if necessary.
M4000 Insulation Analyzer User Guide Whiz Nut Figure 4.47 Transformer Mounting Nut Locations • Place the elastic stop nuts into position using a 15” screwdriver as a guide. Place a nylon washer, a metal washer, and then the elastic stop nut on the screwdriver (Figure 4.48). Hold these pieces in place while inserting the screwdriver into each corner of the Transformer Assembly (Figure 4.49), then release the washers and nuts. Figure 4.48 Preparing The Screwdriver 72A-1230 Rev.
Replacing the Transformer July 22, 2005 Figure 4.49 Guiding the Transformer Mounting Nuts into Position • Use the 7/16” socket wrench to tighten the nuts. Do not overtighten them. 4. Remove the cover of the Main Reference Assembly. Do this by removing the two screws (Figure 4.50) using a Phillips-head screwdriver. Figure 4.27 on page 4-54 shows the instrument with the Main Reference Assembly cover removed. • 4-88 Remove the four screws (Figure 4.
M4000 Insulation Analyzer User Guide Cover Screws Screws 5. Release the three connectors on cables W2, W3 and W4 (which lead to the Amplifier Assembly) by grasping them and pulling the cables away from the Transformer. Move other cables out of the way as necessary to clear a path for lifting out the Transformer. 6. Remove the Nomex insulator shield located between the Transformer and the Amplifier Assembly. Simply grasp the shield and pull it out. 7.
Replacing the Transformer 12. Replace the cover of the Main Reference Assembly and secure it by replacing the screws using a Phillips-head screwdriver. Notice that there is a blue grommet attached to the cable that connects to the Guard Mode Switch Board. When replacing the screw that secures this cable, set the blue grommet into the notch on the Main Reference Assembly cover. 13. Replace the Transformer cover and white grommets.
M4000 Insulation Analyzer User Guide Replacing the HV Pothead Note the location of the HV Pothead in Figure 4.30 on page 4-60. Take the following steps to replace it: 1. If it has not already been done, remove the Front Panel Assembly. See Steps 1-8, ”Removing and Replacing the Front Panel Assembly” on page 4-58. Place the Front Panel Assembly face down on the bench. 2. Remove one 1/4” elastic nut (Figure 4.51), on the back of the Front Panel Assembly to release the W30 cable, using a socket wrench.
Replacing the HV Pothead July 22, 2005 Ground Screw Figure 4.52 HV Pothead, Ground Screw Location 4. Remove one screw and washer (Figure 4.52), that secure the ground wire and the power outlet wire to the side of the HV Pothead, using a Phillips-head screwdriver. 5. Carefully lift the HV Pothead out. 6. Unpack the replacement HV Pothead and place it onto the Front Panel Assembly. 7.
M4000 Insulation Analyzer User Guide Replacing the Fan Filter Note the location of the fan filter in Figure 4.53. Inspect the filter from time to time to check for accumulated dust or scale. Take the following steps to replace it: July 22, 2005 1. Remove the four screws that hold the fan’s grill in place (Figure 4.53) using a Phillips-head screwdriver. Screws Figure 4.53 Fan Filter Screw Locations 2. Remove the old fan filter and replace it with a new one. 3.
Replacing the Fan Replacing the Fan The fan is part of the Amplifier Assembly, which is shown in Figure 4.23 on page 4-47. Take the following steps to replace it: 1. Remove the Amplifier Assembly from the instrument by following Steps 1-8 in ”Replacing the Amplifier Assembly” on page 4-63. 2. Remove the Amplifier Assembly cover by removing the two screws that hold it in place (Figure 4.54) using a Phillips-head screwdriver. Then, lift the cover off. July 22, 2005 Screws Fan Screws Figure 4.
M4000 Insulation Analyzer User Guide 9. Replace the Amplifier Assembly back into the instrument by following Steps 10-19 in ”Replacing the Amplifier Assembly” on page 4-63. Hot air exhausts from the fan outlet. Do not block it. July 22, 2005 NOTE 72A-1230 Rev.
July 22, 2005 Replacing the Fan 4-96 72A-1230 Rev.
Appendix A. M4000 Components Lists M4000 Insulation Analyzer Components that may be included with the M4000 Insulation Analyzer are as follows: Number Description Qty 1 010-0097-01 Type M4200c Controller (optional) 1 2 010-0096-01 Type M4000 Instrument Case 1 3 02D-0024-02 Type M2 Cable, HV, 60 ft. 1 4 02C-5200-01 Liquid Insulation Cell (w/carrying case) 1 5 03D-1070-02 Transporter (optional) 1 6 02C-5798-09 Accessory Bag 1 7 2FB-2464-01 Documentation Bag 1 72A-1230 Rev.
July 22, 2005 Accessory Bag A-2 No. Number Description Qty 1 RC Revision Level D 0 EA 2 181-0452 Power Cord, 6 ft. #14/3, Receptacle box to Instrument & Controller 2 EA 3 181-0499 Power Cord, 50 ft. #14/3 1 EA 4 181-0117 Cord, Adapter, 1EC320 to Nema5, Receptacle box to female plug (for laptop) 1 EA 5 05B-0430-01 P/A, Cable, Int-Con. (Intercase communication cable) 1 EA 6 02C-0019-01 Cable, Ground, 30 ft. 1 EA 7 02B-0050-07 Cable, Safety SW 8 ft.
M4000 Insulation Analyzer User Guide Number Description Qty 22 09C-0614-01 Temp. & Humid. Sensor (old) (optional) 1 EA 23 03C-1318-01 Temp. & Humid. Sensor (new) (optional) 1 EA 24 05B-0492-01 Cable, Strobe Light (optional) 1 EA 25 05B-0493-01 Cable, Temp./Humid Sensor (optional) 1 EA 26 03C-1074-01 P/A, Box, Power Receptacle. 1 EA 27 05B-0495-01 Diagnostic Test Cable, W51, Fld, Adapter 1 EA 28 181-0095 Power Cord, 10 ft. 18/3, Nemas/IEC 320 1 EA 29 05B-0508-01 Conn.
July 22, 2005 Documentation Bag No. Number Description Qty 1 RC Revision Level C 0 EA 2 2FB-2464-01 Bag, Gray Document 1 EA 3 401-0051 Paper 8 3/4 x 100 ft. Thermal Bl 2 EA 4 903-0023 Paper Tube, 2 in x 9 1/2 in White 2 EA 5 401-0076 Software MS DOS 6 x 3.5 Fullman 1 EA 6 903-0026 Diskette Box M4000 1 EA 7 903-0026 Diskette Box DTA 1 EA 8 903-0026 Diskette Box User 1 EA 9 500-0100 Manual Oper M4K Insul. Analyzer 1 EA 10 903-0030 Drive, 5/64, 5 in Lg.
Appendix B. Warranty RENTAL EQUIPMENT The Doble Service and Equipment Agreement provides perpetual hardware and software maintenance for the M4000 Insulation Analyzer throughout the agreement teen. PURCHASED EQUIPMENT Limited Warranty During the one year warranty period, DOBLE will repair or replace, at its option, any defective products or components thereof at no additional charge, provided that the product or component is returned, shipping pa paid, to DOBLE.
Software Limited Warranty ANY USER FOR ANY DAMAGES, INCLUDING WITHOUT LIMITATION, PERSONAL INJURY OR PROPERTY DAMAGE CAUSED BY THE PRODUCT, ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, EXPENSES, LOST PROFITS, LOST SAVINGS, OR OTHER DAMAGES ARISING OUT OF THE USE OF OR INABILITY TO USE THIS PRODUCT.
M4000 Insulation Analyzer User Guide IN NO EVENT WILL DOBLE BE LIABLE TO PURCHASER FOR ANY DAMAGES, INCLUDING ANY LOST PROFITS, LOST SAVINGS, OR OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE SUCH SOFTWARE PRODUCT EVEN IF DOBLE OR AN AUTHORIZED DEALER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY.
July 22, 2005 For Equipment Maintenance, Contact: B-4 72A-1230 Rev.
Appendix C.
July 22, 2005 Error # Description of Error 31 Unused 32 Internal Amp Cable Disconnected 33 One or Both Safety Switch Cables Disconnected 34 Power Amp Power Bad 35 Overcurrent on Power Amp Output 36 Power Amp DC Supply High 37 Power Amp DC Supply Low 38 M4000 Synchronization Error 39 Phase Lock Loop Not Locked 40 Strobe Cable Not Plugged In 41 Strobe Not Flashing 42 - 49 Reserved for Future Use 50 Lead Changed During Test 51 Safety Switches Not Released Between Tests 52 Softwa
M4000 Insulation Analyzer User Guide Error # Description Of Error 82 Application file is corrupted 83 Error downloading application 84 Error programming FLASH ROM. application not found in FLASH. 85 M4100 FLASH ROM has been corrupted Unable to open M4100 Firmware file. Tests cannot be run M4100 Firmware file is corrupted. Tests cannot be run Error downloading M4100 Firmware. Tests cannot be run Error programming FLASH ROM. M4100 Firmware not found in FLASH.
July 22, 2005 C-4 Error # Description of Error 114 Error Accessing Comm.
M4000 Insulation Analyzer User Guide Description of Error 154 Board slot not found 195 Illegal stop bits 196 Illegal word length 197 Illegal parity setting 198 Timed out 199 Function not supported 295 Handshake Line in use 296 Port Settings failed 297 Windows OS error 298 COM Port not found 299 COM Port in use July 22, 2005 Error # 72A-1230 Rev.
July 22, 2005 C-6 72A-1230 Rev.
Appendix D.
July 22, 2005 D-2 72A-1230 Rev.
M4000 Insulation Analyzer User Guide C Calibration Verification 4-26 Calver.
Index Moving mode 1-11 P PC Connector Cable 1-16 Requirements 1-16 Printer setup 2-22 July 22, 2005 R Ramp mode 2-14 Recalibration 4-31 Reference to 10 kV 2-15 Remove an empty test line 2-12 Resonator tests 3-25 RIV test 3-28 Time/Date format 2-6 Trapped Charges 1-22 Troubleshooting Common user errors 4-1 Guide 4-2 HV Cable 4-42 Liquid Insulation Cell 4-43 LV leads 4-42 M4100 Diagnostics 4-21 M4100 Instrument 4-5 M4100 or M4200c? 4-3 PC COM port 2-5 PC Comport Setting 1-16 U USB to Serial Converter 1-
