July V e - eng SDT-06. Instruction Manual. Surgecraft Inc.

Transcription

1 July 2007 SDT-06 Instruction Manual Surgecraft Inc.

2 July 2007 Table of Contents 1. Description of Front & Rear Panels 2 2. Description of Basic Setting & Function Keys 3 3. MANUAL Mode Operation Setting Up Date and Time Setting Buzzer ON/OFF Basic Setting Acquisition of Master Data Test Zone Setting Setting Parameter Storing Master Data Recall Master Data File Management AUTO Mode Test AUTO Mode Operation Statistical Data Communication Specifications Communication Protocol General Command General Command List General Command Description Extended Command Extended Command List Extended Command Description Other Command Other Command List Other Command Description Key Code Table Data Format Browse Data Sample of BF Command Master Data Sample of GM Command Test Data Sample of GD Command Data Sample of GS Command Data Sample of GA Command 38 1

3 1. Description of Front & Rear Panels 8.4 Color LCD Function Keys Numeric keys Jog Dial Basic Setting Keys Front View POWER Switch AUTO Mode Key MANUAL Mode Key TEST Switch 8.4 Color LCD Panel Basic Setting Keys Jog Dial MANUAL Mode Key POWER Switch Function Keys Numeric Keys AUTO Mode Key TEST Switch Compact Flush Device Keys are color-coded for clear explanation. AC-IN 100 to 240VAC OUTPUT Back View RS-232C EXT. CONTROL POWER Connector RS232C Connector GND Terminal HV Output Connector POWER Connector RS232C Connector GND Terminal HV Output Connector 2

4 :Basic Keys, : Function Keys, : Numeric keys, : AUTO/MANUAL Keys July Description of Basic Setting Keys & Function Keys Basic Setting Keys [VOLTAGE] : for setting applied voltage Impulse voltage actually applied to coils is set. The terms voltage here means the actual voltage applied to coils, not the generated voltage inside (i.e. DAC value). Refer to [LEARN] (voltage calibration) below. [PULSES] : for setting pulse number Number of pulses applied to coils in series is set. [SWEEP] : for setting sweep range Sweep Range (time rate) should be adjusted so that voltage decay waveforms are displayed properly in the LCD screen. Function Keys [SAVE] (F-1) : for storing mater data The voltage decay waveform according to the Basic Setting (i.e. voltage, number of pulses, and sweep range) and parameters can be stored in the memory. The SDT-06 has 15 folders (0 to 14) in the memory, and 15 master data (1 to 15) can be stored in each folder. A total of 225 (15 x 15) master data can be stored in the on-board memory of the SDT-06. [RECALL] (F-2) : for recalling master data The master data stored in the memory can be recalled. A master waveform together with its parameters will be loaded and displayed in the LCD screen. [PARAMETER] (F-3) : for setting parameters (limit) Parameters for Pass/Fail limit in the AUTO mode will be set. The SDT-06 has three kinds of evaluation methods, such as Differential Area, The 2nd Zero Cross Point, and Corona/PD evaluation. [ZONE] (F-4) : for setting test zone Test zones for Differential Area, The 2nd Zero Cross Point and Corona/PD can be set with turning the Jog Dial. [LEARN] (F-5) : for voltage calibration Learning for each coil will be made. A voltage decay waveform will be displayed in the LCD screen after fixing applied voltage according to the Basic Setting (i.e. setting voltage, number of pulses, and sweep range), and also the detector circuit is completed automatically. [FILE] (F-6) : for file managing Selecting the active folder, copying a master data in the memory, and deleting a master data can be done in this menu. [EXT.] (F-7) : Expanded functions In Manual Mode, configuration (such as date & time setting, baud rate, and update of firmware, and buzzer ON/OFF) is made. In AUTO Mode, statistical data is displayed. 3

5 3. Manual Mode Operation It is necessary for automatic PASS/FAIL detection to store master data in Manual Mode first. The process for this will be acquisition of Master waveform, Setting test zone, and setting parameters (PASS/FAIL Limit), and these settings should be stored in the on-board memory of the SDT Setting Up Connect the associated HV cable (1.5m) to the BNC connector (OUTPUT) on the back panel. Then, connect the power supply cable to the power connector (AC-IN) in the same way. The GND terminal should be connected to ground. Back Panel Power Connector GND terminal HV Connector (Output) Plug the power supply cable to the wall outlet (100VAC to 240VAC). And connect the alligator clip of the HV cable with master coil firmly. Turn the Power Switch ON, and the SDT-06 will boot up after showing POST (the power-on self test), including a quick test of the on-board RAM for a brief flash. POST LCD screen in Manual If any master data has already been stored in the memory and you have performed auto mode testing before you switched off, the SDT-06 will boot up in the AUTO mode. 4

6 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Date and Time Setting Because master data are managed with time data, make sure the system clock shows the correct date and time at first. Press the [EXT.] key in Manual mode, and the System Setup window will appear in the LCD screen. If the date is correct, press the [EXT.] key or the [ESC] key to close the System Setup window System Setup --- RTC Beep --- Date : 06/01/04 4 ON Time : 19: Communication --- Baud : 38400bps StopBit: 1 Parity : None --- Program Update --- Present Version : Enter Updatemode : password When the SDT-06 is in AUTO Mode, press the [MANUAL] key to change to Manual. If you hit the [EXT.] key in AUTO Mode, the statistical data window will appear instead of the System Setup window. If you need to change the date and time, press the [1] key. The cursor will prompt you to change the Date. The hour setting uses 24-hours system. Enter 6-digit numbers with the numeric keys. for entering 2006, June 5, hit the following numeric keys. [0][6][0][6][0][5] If necessary, hit the [Enter] key to move the cursor. The cursor will move to Time position. If you need to change the time setting, enter 6-digit numbers with the numeric keys. for setting 5:35 p.m., hit the numeric keys as follows. [1][7][3][5][0][0] When you hit the last digit, time counting up starts. If necessary, hit the [Enter] key to move the cursor. Press the [EXT.] key or [ESC] key to close the System Setup window Buzzer ON/OFF The buzzer is set to ON at the factory. If you do not need a buzzer, turn it off by the following process. Press the [4] key while the System Setup window is displayed. The buzzer will be turned off. Then press the [EXT] key or [ESC] key to close the System Setup window. each time pressing the [4] key will change the buzzer ON/OFF. 5

7 3-4. Basic Setting After making sure that the SDT-06 is in the MANUAL Mode, voltage, number of pulses and sweep range should be set by the following procedure. Wait for more than 10 minutes after the Power Switch is turned ON until the HV power supply unit will be stabilized. Press the [VOLTAGE] key and set proper voltage (kv) to be applied to coils. Enter 3-digit numbers including dot (to two places of decimals) as below. e.g. When setting 1kV, press the numeric keys as [1][ ][0][0]. If you want to set 1.5kV, press the numeric keys as [1][ ][5][0]. Jog dial is also available for setting voltage (by 10V steps). Press the [Enter] key or the Jog dial switch to fix the change. Impulse Voltage from 0.20 to 6.00 (kv) can be set on the SDT-06. The voltage set here does not mean the generated voltage (DAC value) but means voltage actually applied to each coil (Actual Voltage). Press the [PULSES] key, and then hit the numeric keys (from [1] to [8]) for the number of pulses to be applied to coils. The cursor will move to the Pre-Pulse prompt. Hit the numeric keys (from [0] to [8]) for magnetic erasing (degauss). If you do not need degauss, hit the [0] key or the [Enter] key to fix the current number (i.e. [0]). NOTE When 0 is set for the Pre-pulse, pre-pulse for degauss does not applied to coils. The number of pulses set in the above is reflected in the AUTO Mode testing. (Refer to page 21.) Pulse Number and Required Time The pulses are applied to coils by 50.0 millisecond intervals. Therefore, the required time for PASS/FAIL detection will increase in proportion with the number of pulses. Setting magnetic erasing - degauss for remanent magnetism Remaining magnetism may be observed in some coils of motors or solenoids after energization is shut off. If you perform impulse testing under such conditions, the first voltage decay waveform may be different from the second one due to the different initial condition of the electromagnetic oscillation by the residual magnetic flux. In such a case, good coils may be detected as defective coils. To solve the above problems, the SDT-06 has a function of magnetic erasing (degauss) that applies pre-pulses to initialize magnetic direction. 6

8 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Acquisition of Master Data Press the [ ] key to enable Auto Sweep Function. The auto indicator lights in the LCD screen. If you wish to set the Sweep Range manually, press the [SWEEP] key. And then select the proper value between 1 to 400 by hitting the number-key or turning the Jog dial Press the [LEARN] key to perform the voltage calibration after confirming the alligator clip of the HV cable is connected to the master coil firmly. If your desired waveform is not available by the Auto Sweep Function, set the sweep range manually by referring the Manual Adjustment of Sweep Rang on page 8. Impulse Voltage will be applied to the coil and voltage decay waveforms will appear on the LCD screen. In this process, after several red waveforms appearing, a white waveform will appear finally. This is because the CPU reads the actual impulse voltage, and adjusts the applied voltage so that the actual voltage can become the same value to the set voltage in the basic setting. The red waveforms indicate the process of voltage calibration. Set value in the Basic Setting (i.e. voltage, number of pulses, and sweep) will be reflected in the impulse voltage applied to the master coil. value in Y-axis (time axis) Obtained Mater Waveform by LEAN Value in X-axis (Voltage) 1 StepVolt OFF [0] Value of D/A (generated voltage obtained by LEARN - voltage calibration Set voltage actual Voltage Step Voltage interval PD Vale of master coil When the [LEARN] LED lights, the waveform data still exist in the buffer memory. If the LED does not light, press the [LEARN] key again before you proceed to the next step. Error Example in LEARN (Voltage Calibration) 1. Set Voltage is inappropriate (too high) for the coil and discharge occurs in the master coil. Lower the set voltage. Actual voltage cannot reach to the set voltage due to magnetic saturation of the coil. 3. The inductance of the master coil is beyond accepted range of the SDT-06 (below 10uH). 7

9 Manual Operation After the Voltage Calibration (LEARN) is finished, manual operation can be performed by pressing the red-lighted [TEST] switch in Manual Mode. The impulse voltage is applied to the coil, and the voltage decay waveform will appear and be superimposed on the LCD screen when every time you press the [TEST] switch. These waveforms will be remained on the screen until you press the [C] key to clear the screen. The manual operation will be useful for comparing the similar waveforms (such as UVW for three-phase motor, etc). Press the [C] key to erase the waveforms and all the waveforms on the screen will be cleared. NOTE For Manual testing, press the [0] key to select OFF for the step voltage. Step Voltage Testing for impulse sparkover voltage By selecting the [1] to [9] of numeric keys, step voltage testing can be done. It will be useful for finding impulse sparkover voltage. Setting Example of Step Voltage 1. Example of [1] (10V interval) is selected: When the [TEST] switch is pressed, the voltage will go up by 10V step intervals starting from the set voltage and impulse voltage will be applied 5 times in series. For example: In the case of 1kV for the set voltage, voltage of 1000V, 1010V, 1020V, 1030V, and 1040V will be applied into the coil in a row and the waveforms will be superimposed on the screen. 2. Example of [3] (30V interval) is selected: When the [TEST] switch is pressed, the voltage will go up by 30V step intervals starting from the set voltage and impulse voltage will be applied 5 times in series. For example: In the case of 1.5kV for set voltage, voltage of 1500V, 1530V, 1560V, 1590V, and 1620V will be applied into the coil in a row and the waveforms will be superimposed on the screen. Numeric keys Description Numeric keys Description [0] 1 time at set voltage [5] 5 times by 50V step interval [1] 5 times by 10V step interval [6] 5 times by 60V step interval [2] 5 times by 20V step interval [7] 5 times by 70V step interval [3] 5 times by 30V step interval [8] 5 times by 80V step interval [4] 5 times by 40V step interval [9] 5 times by 90V step interval Manual Adjustment of Sweep Range (time axis) Level Speed Shape of Waveform 1 maximum speed Voltage decay waveform is extended in the time axis. 400 minimum speed Voltage decay waveform is reduced in the time axis. Min. (Level 400) Sweep Range (time axis) Max. (Level 1) Rotate the Jog Dial in clockwise to increase sweep range. Appropriate waveform Rotate the JogDial in anti-clockwaise to reduce seeep range NOTE By pressing the [ ] key, the Auto Sweep Function is available. If necessary, make changes as you desire. ( Auto Sweep Function is no guarantee of the best waveforms for every user.) 8

10 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Test Zone Setting Now, set the testing zone for the master waveform obtained in the previous chapter. By pressing the [ZONE] key, the pink perpendicular line will appear. Rotate the Jog Dial, and adjust the cursor line at the start-point for the Differential Area. Push the Jog Dial to change the active cursor. Press the [Enter] key after adjusting the cursor line at the end-point. The color of perpendicular line will become orange for setting the Corona/PD zone. Push the Jog Dial to change the active line for the Start-point and the End-point. The upper flag is active and the lower flag is inactive. In the same way, rotate the Jog Dial, and adjust the orange cursor line at the start-point for the Corona/PD. Then, push the Jog Dial to change the active cursor. Press the [Enter] key after adjusting the cursor line at the end-point. The ZONE LED will be put out, and pink and orange lines will appear below the waveform grid area. Y (time)-coordinate Pink for Diff. Area and Orange for Corona/PD. Interval value of Y (time) axis between the start-point and the end-point. The value on the flags of perpendicular line indicates the Y-coordinate (time axis). The time axis has 620 dots from 0 to 619. The interval value of the time axis between the start-point and the end-point is shown below the waveform grid area. Test zone of Differential Area is shown in pink while that of Corona/PD is shown in orange. 9

11 Estimation of Inductance Fit each perpendicular line of the start-point and the end-point at the peak points as shown below. Inductance of the coils can be calculated by the value (0.011uF) of the resonance capacitors in the HV unit of the SDT-06. Calculation error will increase for low Q coils. Start-point Fit the line at peak point. End-point Fit the other line at the lower peak point. Inductance (L) is shown here. In this case, the inductance of the coil will be 1834mH. 10

12 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Setting Parameters For Auto PASS/FAIL detection, you need to set the parameters (Pass/Fail Limit). Setting the parameters should be done by the following sequence. If one of the three parameters will be set, Auto Mode testing can be performed. 1. Differential Area 2. 2nd Cross Point (the second zero crossing point) 3. Corona/PD Area Differential Area Evaluation What is Differential Area Evaluation? The Differential Area Evaluation is to compare the master s area size (cream color in Fig 2) and deviation (yellow area in Fig 1) of the test waveform path from the master waveform path in arbitrary zone A and B. The differential area is expressed in percentage and its denominator is master s area size (Fig 2) while the numerator is the difference area size (Fig 1). Master waveform path Test waveform path A B Fig 1 Master area size A B Fig 2 11

13 Press the [PARAMETER] key and the LED lights. Also the cursor of Differential Area will blink to prompt. Set proper value for this parameter (Pass/Fail Limit) by the numeric keys and the cursor will move and blink at 2nd Cross Point. The key input should be done to one place of decimals. For instance, when you want to input 2% for the parameter, press the numecic keys as follows. You don t need to press the [Enter] key here. [2][ ][0] If you don t need some of the evaluation items, input [9][9][ ][9]. _ will appear instead of the numbers, and the evaluation will be skipped The Second Zero Cross Point (2nd Cross Point) What is the Second Zero Cross Point Evaluation? By comparing the value of the second zero crossing point for the master coil and that of the test coil, the difference of the length between two coils will be expressed in permillage (1/1000). If the length of test coil is shorter than that of master, value will be described in negative numbers. On the contrary, if length of test coil is longer than that of master s, the value will become in positive. Although the sampling speed of the SDT-06 is 10 nano-second (100MHz), the detection accuracy of the zero cross point is calculated with 1 nano-second resolution by seeking the incident angle at the second zero cross point. Input the proper value for the second zero cross point evaluation by the numeric keys, and the cursor will move to the Corona/PD prompt. The key input should be done to one place of decimals. For instance, when you want to input 1% for the parameter, press the numeric keys as follows. You don t need to press the [Enter] key here. [1][ ][0] If you don t need some of the evaluation items, input [9][9][ ][9]. _ will appear instead of the numbers, and the evaluation will be skipped. 12

14 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Corona/PD What is Corona/PD? Corona/PD is the evaluation method that detects high-frequency component amount of corona/pd instead of the difference of the waveform path between a master coil and a test coil. The judgment is done by detecting the corona/pd for the specified zone and counting its physical volume. This parameter is set in percentage (%). When the test result is within criteria, the judgment will be PASS. The denominator of this calculating formula is the area designated by the perpendicular lines of the start-point and the end-point (i.e. between A and B as in below), and the numerator is the difference of Laplacian value (i.e. subtraction that a test coil PD noise minus the master PD noise). If you designate the shorter interval for the test zone, the Corona/PD value will become bigger because the numerator will become smaller. When the multiple pulse number is input in the basic setting, the biggest Laplacian value is selected as the numerator instead of sum total of all the Laplacian value. Denominator of the formula A B What is Laplacian method? The Laplacian procedure, which is called the curvature, is the two-story differential calculus of the function. L( t) = f ( t) 2 f ( t + t) + f ( t + 2 t) 2 t The value of the Laplacian procedure is not big on the gentle curve. Using this property, subtle discharge waves on the gentle curve of the impulse waveforms can be detected. The impulse waveforms have the simple increasing (or decreasing) quantitative change of at most 1 dot in the almost all areas. Therefore, if any value that exceeds the above is detected, such a value can be considered to the electric discharge. Making sure that the cursor is in the Corona/PD prompt, input the proper value in percentage for this parameter. The [PARAMETER] LED will be put out, and all the parameter setting will be finished. The key input should be done to one place of decimals. For instance, when you want to input 1% for the parameter, press the numeric keys as follows. You don t need to press the [Enter] key here. [1][ ][0] If you don t need this evaluation items, input [9][9][ ][9]. _ will appear instead of the numbers, and this evaluation will be skipped. 13

15 Error Area Evaluation We do not think that Error Area Evaluation is a good method as an evaluation function because it completely disregards the waveform features, and we do not recommend using this. So, the Error Area evaluation is not available on your SDT-06 in the default configuration. If you desire this function, please ask your local distributor. On the SDT-06, we use only the positive area for the Error Area detection. Therefore, if you use this parameter instead of the 2nd Zero Cross Point, we recommend setting the perpendicular lines (i.e. test zone) as in the drawing below. The end-point position of the perpendicular line does not give much effect to the test result for the Differential Area evaluation. the lowest peak If the test waveform is appointed to be f(t), and the master waveform to be m(t) Error Area detects by the following formula. 1 N n t f ( t) f(t) 0 indicates the number of sample frames Differential Area detects the following value at all the observed frames. max t fn( t) m( t) m( t) t 14

16 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Storing Master Data The master waveform data obtained by the LEARN (voltage calibration) and the test conditions set by the parameter setting should be stored in the built-in memory of the SDT-06 as a master data. Before starting AUTO Mode testing with the SDT-06, the above setting is necessary. The built-in memory of the SDT-06 has 15 folders (#0 to #14), and also 15 kinds of master data can be stored with specified ID in each folder. Therefore, a total of 225 kinds of master data can be stored in the memory of the SDT-06 (15 data 15 folders = 225). After making one of the 15 folders active, operation of Data Saving or Data Recall is done for this active folder. When you save some master data by pressing the [SAVE] key, the data will be stored into the active folder. If you wish to make another folder active, change the active folder first before storing the master data with referring to File Management on page 18. For the ID of master data, numeric characters, alphabets, and some symbols can be used. Note that number of characters should be within 20. Even one character is accepted as a master ID. By rotating the Jog Dial, alphabets and symbols are available Storing Master Data with ID After making sure the [LEARN] LED lights, press the [SAVE] key. The following window will appear on the LCD screen. Master File in Folder 0 No File ID Volt Puls Swep No File ID Volt Puls Swep Save File Select file No. : _ 15

17 Select the File No. from 1 to 15, and press the [Enter] key. Select file No. : 1 Enter File ID :_ When you select 2-digit number like 13 for the File No., you don t need to press the [Enter] key. When you select the File No. on which a master data exists already, the following message will appear. Press the [Enter] key for overwrite, and input the master ID within 20 characters. If not, press the [ESC] key and go back to. Then, select the empty File No. Select file No. : 1 File exists. Overwrite? (Yes:ENT, No:ESC) If you input the already existing ID, the alarm sounds. different ID. In this case, store the master data with Input the master ID within 20 characters, and press the [Enter] key. Select file No. : 1 Enter File ID : n When you use alphabets or symbols, select the characters by rotating the Jog Dial. Push the Jog Dial to fix the character. Master data will be stored in the built-in memory, and the file window will be closed. The master ID just stored will be shown in the lower right portion of the screen. Stored Master ID The master data has already been recalled. Press the [AUTO] key, and now you can start Auto Mode Testing (refer to page. 21) To start the AUTO Mode testing, press the [AUTO] key. The color of master waveform will change from white to dark blue, and the SDT-06 will become ready for Auto Mode testing. Refer to 4. AUTO Mode Test on page 21 to start the Auto Mode testing. 16

18 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Recall Master Data If the master data has already been displayed on the LCD screen, go to 4. Auto Mode Test on Page 21. If you wish to recall the other master data, follow the procedure below. Press the [RECALL] key, and the Master File List window for the active folder will appear. Master File in Folder 0 No File ID Volt Puls Swep No File ID Volt Puls Swep n / Recall File Select file No. : _ Input the File No. to be recalled, and press the [Enter] key. The master waveform, value of basic setting (i.e. voltage, pulses, & sweep), and parameters will be shown on the screen. The color of recalled master waveform should be dark blue. For starting the AUTO Mode Testing, press the [AUTO] key. The SDT-06 will become in Auto Mode. 17

19 3-10. File Management The following operation can be used for managing master data. In the Manual Mode, press the [FILE] key, and the following Master Files menu window will open. Master Files in Folder 0 1. ChangeFolder 2. FolderCopy 3. DeleteFile No File ID Volt Puls Swep No File ID Volt Puls Swep n / File Manager Menu Description 1. Change Folder to change active folder 2. Folder Copy to copy all the data in the active folder into another folder 3. Delete File to delete the selected file in the active folder If there is active master data in the file, the master data is shown in yellow green Changing Active Folder In the Master Files window, press the [1] key to select 1. Change Folder. The following Sub-window will appear. Select Folder No. Change Folder : _ Enter the Folder No. for the new active folder, and press the [Enter] key. The selected master data will become active. When you select 2-digit number like 11 for the File No., you don t need to press the [Enter] key. Press the [FILE] key or [ESC] key to close the Master Files window. 18

20 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July Folder Copy In the Master Files menu, select the 2. Folder Copy. The following sub-window will appear. Copy Folder Source Folder No. : _ Enter the Folder No. to be copied and press the [Enter] key. At the destination prompt, enter the Folder No. for the destination and press the [Enter] key. Copy Folder Select Folder No. : 0 Dest. Folder No. : _ When you select 2-digit number like 11 for the File No., you don t need to press the [Enter] key. All the master data will be copied from the source to the destination folder. Press the [FILE] key or [ESC] key to close the Master Files window. 19

21 File Delete Press the [3] key in the Master File menu to select 3. Delete File. The following sub-window will open. Delete File Select File No. : _ Enter the File No. to be deleted and press the [Enter] key. The sub-window will close, and you can find the selected file has been deleted from the Master Files window. Delete File Select File No. : 2 Master File in Folder 0 1. ChangeFolder 2. FolderCopy 3. DeleteFile No File ID Volt Puls Swep No File ID Volt Puls Swep n / / / /

22 :Basic Keys, : Function Keys, : Numeric Keys, : AUTO/MANUAL Keys July AUTO Mode Test In the AUTO Mode Testing, the Pass/Fail detection is performed automatically by pressing the [TEST] switch according to the preset parameter value (Pass/Fail Limit). Before starting the Auto Mode Testing, master coil data and the parameters (Pass/ Fail criteria) should be stored in the built-in memory of the SDT-06. If you have not stored master data yet, save the master data first referring to the 3. Manual Operation on page AUTO Mode Operation If a master data has not loaded yet, recall the master data first referring to 3-9. Recall of master data on page 17. ID for the active master data loaded To display the master data list, press the [RECALL] key. The active master data is shown in yellow green. Only the [RECALL] key and [EXT.] key are effective in the Auto Mode. All the Function keys are effective in the Manual Mode. After confirming that the test coil is firmly connected with the alligator clip of the HV cable, press the [TEST] switch. The impulse voltage will be applied to the coil and the automatic Pass/Fail detection will be performed based on the preset parameters. Either PASS (in green) or FAIL (in red) will be displayed in the lower right portion of the LCD screen. 21

23 4-2. Statistical Data The Statistical Data can be available by pressing the [EXT.] key in the Auto Mode. Eight (8) statistical data tables (0 to 7) are available, and selected by the numeric keys. To reset the statistical data, press the [C] (Clear) key. Each time you press the [ ] key, the table will be switched from Differential Area table to the 2nd Cross Point table (or Error Area table) alternately. Press the [EXT.] key to close the statistical data table Differential Area Cursor Statistical Data Table #0 is selected here. Statistical Data 0 (Diff) X = 2.8% Y = 1 AV= 0.4% SS =3.28 Statistical Data X : deviation distribution of parameter value Y : Quantity at x-coordinate AV : average SS : variance (at normal value = 100%) Total PASS FAIL Ratio Corona % 0 Statistical Data Table of Differential Area The cursor (perpendicular line) will travel by rotating the Jog Dial (X= 0.0%, 0.1%, 0.2% ), and the Y value (quantity at the x-coordinate) will change. This indicates the number of pieces distributed at the x-coordinate of deviation value (%). The range of the X axis for Differential Area is from 0.0% to 38.0% while that of 2nd Cross Point is 19.0%. If deviation value exceeds 38.0% (or 19.0%), it will be sorted and counted up as the 38.0% deviation (or 19.0% deviation). The max. of Y value is 999, nd Cross Point (or Error Area ) Statistical Data 0 (Area) X = 2.8% S = 1 AV= 0.4% SS =3.28 Statistical Data X : deviation distribution of parameter value Y : Quantity at the above x-coordinate AV : average SS : variance (at normal value = 100%) minus ( ) region Plus (+) region Total Ratio Corona % 0 22