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NBN 6500B Series User Manual

Precision impedance analyzers
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Precision Impedance Analyzers
6500B Series
User Manual
Issue A4
Part Nº 9H6500B

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  • Page 1 Precision Impedance Analyzers 6500B Series User Manual Issue A4 Part Nº 9H6500B...
  • Page 2 Wayne Kerr Electronics Limited Worldwide Wayne Kerr Electronics Inc. Wayne Kerr Electronics 165L New Boston Street Vinnetrow Business Park Woburn MA 01801-1744 Vinnetrow Road Tel: +781 938 8390 Chichester Fax: +781 933 9523 West Sussex PO20 1QH Email: sales@waynekerr.com Tel: +44 (0)1243 792200 service@waynekerr.com Fax: +44 (0)1243 792201 Email: sales@wayne-kerr.co.uk...

  • Page 3: Table Of Contents

    CONTENTS 1. SAFETY..........................1–1 General..........................1–2 General..........................1–2 AC Power Supply ......................... 1–3 Power Cable........................1–3 Adjustment, Maintenance and Repair................... 1–3 Safety Interlock........................1–4 Static Electricity........................1–4 2. INTRODUCTION....................... 2–1 Measurement Parameters...................... 2–2 Instrument Modes ......................... 2–3 Analysis ..........................2–3 Meter..........................
  • Page 4 Measurement Keys......................4–3 Control Keys ........................4–3 Data Entry Keypad......................4–4 Fixture Interface........................ 4–5 Operation Overview......................4–6 Measuring a Component ....................... 4–7 1J1011 Component Fixture....................4–7 Example..........................4–7 5. TRIMMING & HIGH FREQUENCY (HF) COMPENSATION........5–1 Overview ..........................5–2 Overview ..........................5–2 Trimming..........................
  • Page 5 Calibrate..........................7–9 Settings..........................7–9 Measurement Settings (Meas Setup) ..................7–9 Measurement Parameters....................7–10 Trace 1 and 2 ........................7–10 Equivalent Circuit ......................7–10 AC Drive Level....................... 7–10 DC Bias (/D1 Option) ..................... 7–11 Speed..........................7–11 Range ..........................7–11 Trace Setup ......................... 7–12 Parameter ........................
  • Page 6 10. BINNING MODE......................10–1 11. REMOTE CONTROL....................11–1 ILLUSTRATIONS......................11–5 GPIB Interface ........................11–6 Introduction ........................11–6 Remote Programming ......................11–7 Remote Messages and Commands.................. 11–7 Command Structure ......................11–8 Data Output ......................... 11–8 Output Syntax ......................... 11–8 Real Data Errors......................11–9 Status Groups ........................
  • Page 7 Start – the Trace X Axis First Measurement Point............11–31 Stop – the Trace X Axis Last Measurement Point ............11–31 Title – the Graph......................11–32 Trigger a Measurement Sweep ..................11–32 Delta Marker ......................... 11–33 Selected Marker ......................11–33 Calibration ........................
  • Page 8 Safety ..........................12–7 EMC ..........................12–7 13. THEORY REFERENCE....................13–1 Abbreviations ........................13–2 Formulae ..........................13–3 Series / Parallel Conversions ..................13–4 Polar Derivations......................13–4 14. MAINTENANCE, SUPPORT AND SERVICES ............14–1 Guarantee ..........................14–2 Maintenance ........................14–2 Cleaning .......................... 14–2 Safety Checks........................

  • Page 9: Safety

    1. SAFETY This chapter details the safety guidelines which must be observed when operating a 6500 series Precision Impedance Analyzer. Ensure that all sections of this chapter have been read and guidelines followed prior to using the instrument. CHAPTER CONTENTS AC Power Supply .........................

  • Page 10: General

    Safety General This equipment has been designed to meet the requirements of EN61010-1 ‘Safety requirements for electrical equipment for measurement, control & laboratory use’ and has left the factory in a safe condition. The following definitions in EN61010-1 are applicable: OPERATOR Person operating equipment for its intended purpose.

  • Page 11: Ac Power Supply

    Safety AC Power Supply Power Cable Power cable and connector requirements vary between countries. Always use a cable that conforms to local regulations, terminated in an IEC320 connector at the instrument end. If it is necessary to fit a suitable AC power plug to the power cable, the user must observe the following colour codes: WIRE EUROPEAN...

  • Page 12: Safety Interlock

    Safety When the equipment is connected to the local AC power supply, internal terminals may be live and the opening of the covers or removal of parts (except those to which access can be gained by hand) is likely to expose live parts. Capacitors inside the equipment may still be charged even if the equipment has been disconnected from all voltage sources.

  • Page 13: Introduction

    2. INTRODUCTION For a detailed specification of each instrument in the range see Chapter 12, Specifications. CHAPTER CONTENTS Measurement Parameters...................... 2–2 Instrument Modes ......................... 2–3 Analysis ..........................2–3 Meter..........................2–3 2–1...

  • Page 14: Measurement Parameters

    Introduction Figure 2-1 6500B Precision Impedance Analyzer The 6500B series of Precision Impedance Analyzers provides impedance measurement capability of components from 20Hz up to 120MHz. A comprehensive range of functions enables a component to be accurately characterised over a wide frequency range with a choice of Analysis and Meter modes allowing swept, single and repetitive measurements.

  • Page 15: Instrument Modes

    Introduction Instrument Modes Analysis Graphical sweep of two measurement parameters displayed on the large, TFT colour display. Two user-selectable parameters can be swept against frequency, drive level or DC bias. Meter The instrument may be used as a standard LCR meter in single shot or repetitive mode. Full control of instrument measurement settings is available with two user selectable component parameters being displayed for each measurement.
  • Page 16 Introduction This page left blank 2–4...
  • Page 17 3. INSTALLATION Ensure that all sections of Chapter 1 and the installation guidelines within this chapter have been read prior to using the instrument for the first time. CHAPTER CONTENTS AC Line Connections......................3–2 Power Cable........................3–2 AC Input Voltage and Frequency Adjustment ..............3–2 AC Input Fuse Rating ......................

  • Page 18: Ac Line Connections

    Installation AC Line Connections Before connecting the AC power, read the AC Power Supply section page 1–3. Power Cable The unit is provided with a power cable capable of carrying the input current for both 115V and 230V operation. This cable should be connected via a suitable connector to the local AC power supply.

  • Page 19: Rack Mounting

    Installation Rack Mounting There is a rack mounting kit available as an option (part number 7SM5593) to fit a standard 19” rack. This kit contains the mounting brackets and screws required for the conversion. To fit these brackets, carefully remove the insert in the outer face of both front handles, see Figure 3-1 below.

  • Page 20: The Rear Panel

    Installation The Rear Panel Figure 3-2 The Rear Panel IEC Socket and Fuse Holder Read Chapter 1 before using the instrument for the first time. WARNING! Disconnect the mains supply before opening the fuse holder. Any replacement fuse must comply with the AC Input Fuse Rating on page 3–2. This equipment should only be serviced by suitably trained and competent persons.

  • Page 21: Rear Panel Control Connections

    Installation Rear Panel Control Connections Many of the external interface connectors are mounted on the rear panel. For the location of each interface please see Figure 3-2 The Rear Panel Label Type Handler 25-way D-type (male) Bin Handler option Parallel Printer 25-way D-type (female) To send results to local printer Aux.

  • Page 22: Auxiliary Control Out

    Installation Parallel Printer Output Description Description Strobe Auto Feed Data Line 0 Error Data Line 1 Initialize Printer Data Line 2 Select Input Data Line 3 Ground (Data bit 0) Data Line 4 Ground (Data bit 1) Data Line 5 Ground (Data bit 2) Data Line 6 Ground (Data bit 3)

  • Page 23: Safety Interlock (Dc Bias Option /D1)

    Installation Safety Interlock (DC Bias Option /D1) DC bias is inhibited until the safety interlock circuit is complete. This is achieved by completing the connection between the Sleeve and Ring terminals of the Safety Interlock Plug when it is plugged into the Safety Interlock Socket on the rear panel. SAFETY INTERLOCK SOCKET ON REAR PANEL SLEEVE...

  • Page 24: Local Area Network (Lan)

    Installation Local Area Network (LAN) The industry standard RJ45 connector enables the instrument to be connected to a 10/100Mbps Fast Ethernet compatible network. A networked HP-PCL compatible graphics printer may be also used with the instrument. See chapter 11, Remote Control for further information. General Purpose Interface Bus (GPIB) The General Purpose Interface Bus (GPIB) is designed to be used for communication between instruments and control devices such as PCs fitted with a suitable interface card.

  • Page 25: Operation

    4. OPERATION This chapter describes the basic operation of the instrument. Topics covered include front panel controls, trimming, calibration and making a basic component measurement using Meter Mode. CHAPTER CONTENTS The Front Panel........................4–2 Switching the Instrument ON ................... 4–2 Switching the Instrument OFF..................

  • Page 26: The Front Panel

    Operation The Front Panel Figure 4-1 The Front Panel Switching the Instrument ON With the instrument connected to the correct AC power supply (see chapter 3—Installation) press the POWER switch. The power indicator will light, the bias indicator will flash and after running the start up routine the instrument will display Analysis Mode.

  • Page 27: The Navigation Keys

    Operation The Navigation Keys Figure 4-2 The Navigation Keys The navigation keys can be used in place of the touch screen display or mouse to move around the screen. Measurement Keys Figure 4-3 Measurement Control Keys Trigger When in single shot mode, the Trigger key initiates a single measurement. If it is pressed and held, the analyzer will continue to make measurements until the key is released.

  • Page 28: Data Entry Keypad

    Operation Figure 4-5 File Menu Items Selects the next menu, test parameter or option. ← Deletes the last entered character when the screen data input keypad is displayed. F1 and F2 Menu specific functions Enter Confirm data entry when the screen data input keypad is displayed. Save Saves the instrument set-up.

  • Page 29: Fixture Interface

    Operation The data-entry keypad is a multi-function key set permitting manual entry of data values when the appropriate screen data input keypad is displayed. The +/- key may be used before or after a value to change its sign. If the key is pressed more than once, the value will toggle between + and -.

  • Page 30: Operation Overview

    Operation Operation Overview The 6500B series of Precision Impedance Analyzers features a touch screen display which enables the instrument to be controlled by selecting menu items, measurement parameters and control functions directly from the displayed image. It is recommended that a stylus always be used when controlling the instrument using the touch screen interface.

  • Page 31: Measuring A Component

    Operation Measuring a Component The following instructions illustrate the process of measuring a component in Meter mode. For a full description of instrument measurement procedures see Chapters 6 and 7. 1J1011 Component Fixture Figure 4-9 1J1011 Component Fixture Example This example will take the user through the process of measuring the capacitance and dissipation factor of a capacitor.
  • Page 32 Operation 4) Using the Speed, Drive and Range screen control panels set each of the following parameters in turn. To increment or decrement the numeric value of a parameter use the screen icons. Alternatively a numeric data entry keypad may be displayed by selecting the current parameter value on the screen.

  • Page 33: Trimming & High Frequency (Hf) Compensation

    5. TRIMMING & HIGH FREQUENCY (HF) COMPENSATION The section describes the procedures for Trimming and High Frequency Compensation. CHAPTER CONTENTS Overview..........................5–2 Trimming ..........................5–3 Open and Short Circuit Trims................... 5–4 High Frequency (HF) Compensation..................5–4 ILLUSTRATIONS Component Fixture 1J1011 Short Circuit Trim..............5–3 5–1...

  • Page 34: Overview

    Trimming & HF Compensation Overview The instrument is supplied with a 1J1011 Component Fixture. The Trim and HF Compensation values stored in the instrument when it is first shipped apply uniquely to this fixture. The Trim and HF Compensation procedures should only be required when the fixture is changed; when cable accessories are used;...

  • Page 35: Trimming

    Trimming & HF Compensation 3. Instrument after trim or User Volatile No calibration errors HF Compensation and ‘Save’ User Non-volatile (new values copied to User Factory Non-volatile Non-volatile) 4. State 3 after instrument is User Volatile No calibration errors turned off and back on (User User Non-volatile Volatile values lost so User Factory Non-volatile...

  • Page 36: Open And Short Circuit Trims

    Trimming & HF Compensation Open and Short Circuit Trims. 1) Select Calibrate from the Mode menu. The analyzer will display the Calibration form. 2) Open - or short-circuit the fixture jaws as appropriate. 3) Select Open Circuit or Short Circuit 4) Wait until the analyzer has finished trimming.

  • Page 37: Meter Mode

    6. METER MODE This chapter describes using the Meter Mode to make single and repetitive measurements. CHAPTER CONTENTS Mode Menu........................... 6–4 Analysis ..........................6–4 Calibrate..........................6–4 Settings..........................6–4 File Menu..........................6–5 Internal Memory.............................6–5 External Memory ............................6–6 Alpha Numeric Screen Interface..................6–6 Save Set-up ........................
  • Page 38 Meter Mode ILLUSTRATIONS Meter Mode........................... 6–3 Mode Menu........................... 6–4 File Menu ..........................6–5 Internal Memory Locations....................6–5 Set-up External File location ....................6–6 Screen Data Entry Keypad....................6–6 Display Menu........................6–8 Deviation Display Option ..................... 6–8 Test Parameter Selection ...................... 6–9 Equivalent Circuit Selection ....................
  • Page 39 Meter Mode Figure 6-1 Meter Mode Meter mode is selected from the ‘Mode’ drop down menu. Meter mode provides a traditional LCR meter interface with single or repetitive measurements with two measurement terms displayed as absolute or deviation from a preset nominal. Absolute or relative scale bars may be displayed which compare each measurement to nominal and limit values.

  • Page 40: Mode Menu

    Meter Mode Mode Menu Figure 6-2 Mode Menu Analysis Selects the graphical swept measurement mode. For a full description of Analysis Mode see Chapter 7. Calibrate See Chapter 5 -Trimming & High Frequency (HF) Compensation. Settings To set the Date, Time, instrument GPIB address or calibrate the Touch Screen see Chapter 9 - Settings.

  • Page 41: File Menu

    Meter Mode File Menu Figure 6-3 File Menu The File menu enables set-up information to be saved or recalled from internal or external memory. A screenshot facility enables a bit map representation of the displayed screen to be saved to external memory to enable a representation of the screen to be transferred to a PC. Internal Memory The instrument has 20 internal non-volatile memory locations which may be used to store instrument setups.

  • Page 42: Alpha Numeric Screen Interface

    Meter Mode External Memory Figure 6-5 Set-up External File location Selection of Screenshot or the External Memory command button from Load Set-up or Save Set-up displays the External File form. External files may be saved to the USB memory plugged into either of the USB ports on the instrument back panel.

  • Page 43: Save Set-Up

    Meter Mode The screen data entry keypad is a full alpha numeric keypad typically displayed when defining file names or adding a title to an Analysis mode trace. The instrument date and time short cut keys enable test results to be chronologically identified while still enabling other text to be included.

  • Page 44: Display Menu

    Meter Mode Display Menu Figure 6-7 Display Menu Absolute Displays component measurements as absolute values. Deviation Figure 6-8 Deviation Display Option Instrument readings are referenced to nominal values. Nominal values may be entered by testing a component followed by ‘Save Nom’ or the measurement term selected and the nominal value entered using the on screen numeric date entry keypad.

  • Page 45: Making A Measurement

    Meter Mode The black circle to the left of the Term 1 or Term 2 measurement identifies whether the deviation is calculated for Term 1 or Term 2. Making a Measurement Measurement AC Function Figure 6-9 Test Parameter Selection Each measurement displays two terms, which may be set to any one of the available functions. Select ‘Term1’...

  • Page 46: Speed

    Meter Mode Speed Figure 6-11 Speed Selection The ‘Speed’ command button enables the time taken to make a measurement to be varied. The greatest measurement accuracy will be achieved when the speed is set to Slow. Five speed options are available, Max, Fast, Medium, Slow and Custom. The selected measurement speed is always displayed.

  • Page 47: Range

    Meter Mode The measurement frequency may be set by using the screen icons which increment or decrement the set value or set to a specific frequency using the on screen numeric date entry keypad. To access the numeric date entry keypad select the displayed frequency. Enter the desired frequency followed by any unit multipliers and ‘OK’.

  • Page 48: Dc Bias (Option)

    Meter Mode The instrument has seven measurement ranges. If the ‘Auto’ option is chosen then during the next measurement the instrument will select the most appropriate range and display the set range in the top right hand corner of the screen measurement results window. The range selected is dependant on the impedance of the Device Under Test (DUT) and the measurement frequency.

  • Page 49: Trigger A Measurement

    Meter Mode Trigger a Measurement Figure 6-17 Trigger a Measurement The instrument has two trigger modes, ‘Single’ and ‘Repetitive’. To change the mode, toggle the on screen trigger mode command button. Single In Meter Mode individual measurements may be made using the front panel keyboard Trigger button or the on screen ‘Trigger’...

  • Page 50: Limit Scale

    Meter Mode Limit Scale Figure 6-18 Scale Bars The instrument can indicate the difference between the last component measurement and preset limits. For each measurement Term the last result may be displayed as a horizontal bar, red in colour if outside the set limits or green if the measurement is within the limits. Within the bar, a marker indicates the measurement relative to the set limits.

  • Page 51: Relative And Absolute Limits

    Meter Mode Relative and Absolute Limits Figure 6-20 Scale Bar Relative or Absolute Options For each measurement term the scale may be individually enabled and the scale mode set to ‘Relative’ or ‘Absolute’. The Relative mode compares the measurement term result with a nominal value; the limits are entered as a percentage of the nominal value.

  • Page 52: Resonance Search

    Meter Mode Resonance Search Resonance Search uses a binary search technique over a frequency range specified by the user in order to locate a DUT (Device Under Test) resonance. It calculates the resonant frequency as well as the equivalent circuit values and the Q value. The user specifies the frequency range in which the resonance is thought to lie and the type of resonance to be found (i.e.

  • Page 53: Use Freq

    Meter Mode Figure 6-23 Searching for Resonance When the search is complete, the resonant frequency and equivalent circuit values are displayed. Use Freq ‘Use Freq’ exits resonance search mode and sets the frequency of Meter Mode to the resonant frequency. Exit Exits resonance search mode and returns to Meter Mode.
  • Page 54 Meter Mode This page left blank 6–18...

  • Page 55: Analysis Mode

    7. ANALYSIS MODE This chapter describes using the Analysis Mode to make graphical plots of measurements against frequency, AC drive level or DC bias. CHAPTER CONTENTS Introduction........................... 7–4 File Menu..........................7–4 Internal Memory.............................7–5 External Memory ............................7–5 Alpha Numeric Screen Interface..................7–6 Save Set-up ........................
  • Page 56 Analysis Mode Trigger or Stop Measurements.................... 7–16 Repetitive Sweep......................7–16 Single Sweep........................7–16 Auto Fit ..........................7–16 Trace Markers ........................7–16 Short Cut Key........................7–17 Marker ..........................7–17 Properties ........................7–17 Normal................................. 7–17 Delta ................................7–17 Relative to Marker ............................7–17 Hide Marker ..............................
  • Page 57 Analysis Mode Find Dip ..........................7–20 Dip Next Left and Right ..................... 7–20 Dip Next Low and High ..................... 7–21 Zoom In – selecting frequency range ................. 7–21 Confirm Zoom ........................7–22 Zoomed In........................... 7–22 7–3...

  • Page 58: Introduction

    Analysis Mode Introduction Analysis mode allows swept measurements to be made where the swept parameter can be frequency, AC drive level or dc bias (option). For the purposes of this chapter it is assumed that the swept parameter is frequency and that AC drive level and dc bias (option) are fixed. See paragraph headed Trace Setup for information on configuring other types of sweep.

  • Page 59: Internal Memory

    Analysis Mode A screenshot facility enables a bit map representation of the displayed screen to be saved to external memory to enable a representation of the screen to be transferred to a PC. The measurements used to create the trace may be saved (in 3 columns) to external memory as a .csv file.

  • Page 60: Alpha Numeric Screen Interface

    Analysis Mode Selection of Screenshot, Export Trace or the External Memory command button from Load Set-up or Save Set-up displays the External File form. External files may be saved to the USB memory plugged into either of the USB ports on the instrument back panel.

  • Page 61: Load Set-Up

    Analysis Mode Quick Save The Quick Save facility is useful when the instrument settings need to be quickly saved and do not need to be associated with a particular component or set of test results. The Quick Save set- up data is held in the instrument non-volatile memory and is loaded when the instrument is powered up.

  • Page 62: Screenshot

    Analysis Mode Screenshot The screen image is saved, in .BMP format, to a USB memory attached to one of the USB ports on the rear panel. Use the on screen data entry keypad or external keyboard to set the filename. The display resolution is 640 x 480 pixels.

  • Page 63: Mode Menu

    Analysis Mode Mode Menu Figure 7-8 Mode Menu Meter Selects Meter Mode. For a full description of Meter Mode see Chapter 6. Calibrate See Chapter 5 - Trimming & High Frequency (HF) Compensation Settings To set the Date, Time, Calibrate the Touch Screen or change the GPIB address see Chapter 9 - Settings.

  • Page 64: Measurement Parameters

    Analysis Mode Figure 7-9 Measurement Settings Measurement Parameters Figure 7-10 Trace Measurement Parameters Trace 1 and 2 Each trace measurement parameter may be set independently. Equivalent Circuit The equivalent circuit, ‘Series’ or ‘Parallel, is displayed on the button. Simply toggle the button to change the option.

  • Page 65: Dc Bias (/D1 Option)

    Analysis Mode entry keypad enter the desired value followed by any numeric data multipliers. Terminate drive level entry by selecting ‘Volts’ or ‘Amps’ or ‘Cancel’ if the existing drive level is to be retained. The drive level may also be set using the short cut button at the bottom of the display. This button displays the voltage/current level set.

  • Page 66: Trace Setup

    Analysis Mode current is being used with a high impedance DUT. It may be necessary to reduce the range in order to obtain a valid (i.e. not O/R) reading. Trace Setup Figure 7-12 Trace Set-up Trace Set-up is used to define the type of sweep to be performed (frequency, AC drive level or dc bias) and expected measured component values together with other trace display options.

  • Page 67: Frequency/Level Range

    Analysis Mode Frequency/Level Range Figure 7-13 Trace Frequency In this section, level refers to either AC drive level or DC bias level as appropriate. The trace Start and Stop values are shown in the respective command buttons. To change the settings select the frequency/level setting you wish to change and enter the new frequency/level in the on screen display keypad.

  • Page 68: Points

    Analysis Mode Points Increasing the number of measurement points ensures that the characteristics of the component are measured at a greater number of frequencies and taking an increased time to complete a trace. The set number of points is displayed on the parameter points command button, selecting the button enables the number of points to be changed.

  • Page 69: Add A Title

    Analysis Mode Figure 7-15 Split Trace Add a Title Figure 7-16 Add Title to Trace A title may be added to a trace. This is done by selecting Title, and then using the on screen keypad or external keyboard. Averaging Each measurement point is averaged over a number of measurement traces, the number being set by the ‘Averaging’...

  • Page 70: Trace On/Trace Off

    Analysis Mode CAUTION:- If Averaging is set and the component is changed the readings will move between successive sweeps until the averaging is complete. This can give the impression that the readings are drifting with time. Trace On/Trace Off Either of the traces may be turned on /off by toggling the on/off buttons in the top right hand corner of the display.

  • Page 71: Short Cut Key

    Analysis Mode Short Cut Key The frequency and measured values for the active trace marker are displayed at the bottom of the screen. To change the active marker, select the short cut key and then select the marker to display Marker The marker settings sub form may be displayed or hidden using the ‘Markers’...

  • Page 72: Peak Search

    Analysis Mode Hide Marker Disables the selected marker. Peak Search Figure 7-19 Peak Search The Peak Search facility may be used to identify peaks, or dips in a measurement trace. Selecting the Peak Search command button will produce a new set of command buttons at the top of the display.

  • Page 73: Dip

    Analysis Mode Next Left and Right Each time, Next Left finds the next peak to the left of the marker’s current position, and Next Right finds the next peak to the right of the marker’s current position. Figure 7-21 Peak Next Left and Right Next Low and High Each time, Next Low finds the peak which is next closest to (in value), and less than the marker’s current position.

  • Page 74: Next Left And Right

    Analysis Mode Figure 7-23 Find Dip Next Left and Right Each time, Next Left finds the next dip to the left of the marker’s current position, and Next Right finds the next dip to the right of the marker’s current position. Figure 7-24 Dip Next Left and Right Next Low and High Each time, Next Low finds the dip which is next closest to (in value), and less than the marker’s...

  • Page 75: Zoom

    Analysis Mode Figure 7-25 Dip Next Low and High Zoom The Zoom facility is a short cut which allows the x-axis to be expanded before the trace is re- plotted to reveal more detail. Zoom In Figure 7-26 Zoom In – selecting frequency range To Zoom In, select ‘Zoom’...

  • Page 76: Zoom Out

    Analysis Mode Figure 7-27 Confirm Zoom Figure 7-28 Zoomed In Zoom Out To zoom out, select ‘Zoom’ then drag the stylus from RIGHT to LEFT. The currently displayed frequency range will be fitted into the area highlighted, and the whole frequency range of the new trace will be expanded accordingly.

  • Page 77: Chapter Contents

    8. DC BIAS OPERATION This chapter describes how to use the dc bias options. CHAPTER CONTENTS General..........................8–2 DC Voltage (/D1 option) ....................8–2 DC Current (/D1 option)....................8–3 Analysis Mode ........................8–3 Meter Mode .......................... 8–5 8–1...

  • Page 78: Dc Bias Operation

    DC Bias Operation General DC Bias allows a DC level to be applied to the DUT while a measurement is being performed. Depending on the option fitted this can be a DC voltage or a DC current. DC voltages can be applied to capacitors, DC currents can be applied to inductors or resistors.

  • Page 79: Dc Current (/D1 Option)

    DC Bias Operation 1) The required DC voltage has been reached. The dialog will close and measurements can be triggered. 2) The user presses the ‘Bias off’ button. The DUT will be discharged back to 0V 3) The charging timeout is exceeded, which can occur for 2 reasons:- a) The capacitance is too large b) The capacitor has a very high leakage current which will prevent ac measurements being made.
  • Page 80 DC Bias Operation 1) In the Trace dialog box select DC Bias as the parameter. This will change the fields in the Start/Stop set-up. Figure 8-3 Bias Setup 2) Set Start and Stop to the required values. Note Log can only be set if Start and Stop are both >0.

  • Page 81: Meter Mode

    DC Bias Operation 6) When bias is enabled (indicated by the front panel red LED and the bias symbol at the bottom of the screen changing), press Trig/Trigger to enable a bias sweep. Figure 8-5 Bias Sweep Note that when the bias is enabled and before the sweep is triggered, the bias level will be set to the level that existed in the bias set-up before the Sweep Parameter was set to DC Bias, i.e.
  • Page 82 DC Bias Operation This page left blank. 8–6...

  • Page 83: Settings

    9. SETTINGS This chapter describes how to set the time and date and calibrate the touch screen interface. CHAPTER CONTENTS Settings Menu ........................9–2 Setting the Time........................9–3 Setting the Date........................9–3 Touch Screen Calibration ..................... 9–4 Setting the GPIB Address ..................... 9–4 Setting the LAN Address......................

  • Page 84: Settings Menu

    Settings Settings Menu Figure 9-1 Mode Menu The settings menu is accessible from the Mode menu in either Meter or Analysis mode. Figure 9-2 Navigation Keys Press the menu key and using the navigation keys highlight the Mode menu Settings item. Use the Enter key to display the Settings menu.

  • Page 85: Setting The Time

    Settings Setting the Time Figure 9-4 Time Entry Select the button displaying the time on the settings menu and enter the hours, in 24 hour format, using the on screen keypad. Terminate the entry with OK and then enter the minutes and seconds completing each entry with OK.

  • Page 86: Touch Screen Calibration

    Settings Touch Screen Calibration The touch screen alignment may be calibrated by running the touch screen panel calibration procedure. Select the Calibrate button from the Settings menu using the stylus, navigation keys or external mouse to highlight the button followed by the Enter key on the front panel. Figure 9-6 Touch Screen Calibration Display The touch screen calibration screen displays twenty five crosses in turn, each cross corresponding to a section of the display.

  • Page 87: 10. Binning Mode

    10. BINNING MODE Separate document. 10–1...
  • Page 88 Binning Mode This page left blank 10–2...
  • Page 89 11. REMOTE CONTROL The 6500B series of instruments may be remotely controlled using the General Purpose Interface Bus (GPIB) or a Local Area Network (LAN). This chapter describes the interface specification and the command structure for both forms of remote instrument control.
  • Page 90 Remote Control DEViation-TERM ............................. 11–16 DEViation-TERM?............................ 11–16 DEViation-TYPE ............................11–16 DEViation-TYPE?............................. 11–16 Display Format......................11–16 DISPlay ..............................11–16 DISPlay?..............................11–16 Drive Type – Signal Source ..................11–17 DRIVE?..............................11–17 Equivalent Circuit ......................11–17 EQU-CCT..............................11–17 EQU-CCT?..............................11–17 Frequency........................11–17 FREQuency ............................... 11–17 FREQuency?..............................
  • Page 91 Remote Control SHOW-SCALE2? ............................11–22 Speed of Measurement....................11–22 SPEED ...............................11–22 SPEED? ..............................11–22 Trigger a Measurement....................11–22 TRIGger ..............................11–23 Analysis Mode ........................11–24 Trace Averages ......................11–24 AVERAGES ..............................11–24 AVERAGES?.............................11–24 RESET-AVERAGING..........................11–24 DC Bias......................... 11–24 BIAS ................................11–24 BIAS?.................................11–24 BIAS-STATe..............................11–25 BIAS-STATe?............................11–25 BIAS-TYPE ...............................11–25 BIAS-TYPE? .............................11–25 Drive Type –...
  • Page 92 Remote Control Property of Device to be Measured................11–29 PROPerty1..............................11–29 PROPerty2..............................11–29 PROPerty1?............................... 11–29 PROPerty2?............................... 11–29 Range – Instrument Measurement Range ..............11–30 RANGE ..............................11–30 RANGE?..............................11–30 Measurement Nearest to a Specified Frequency............11–30 RESULT? ..............................11–30 Speed of Each Individual Measurement ............... 11–31 SPEED...............................

  • Page 93: Illustrations

    Remote Control SELECT? ..............................11–37 STATE ...............................11–37 STATE? ..............................11–37 TYPE .................................11–37 TYPE?................................11–37 Calibration ........................11–38 Open Circuit Trim......................11–38 OC-TRIM..............................11–38 OC-TRIM? ..............................11–38 Short Circuit Trim......................11–38 SC-TRIM ..............................11–38 SC-TRIM?..............................11–38 ILLUSTRATIONS Remote Message Structure ....................11–7 Command Paths ........................11–7 Command Path Example ....................11–8 GPIB Command Structure ....................

  • Page 94: Gpib Interface

    Remote Control GPIB Interface Introduction The General Purpose Interface Bus (GPIB) is a parallel port designed to be used for communication between instruments and control devices such as PCs fitted with a suitable interface card. The GPIB interface is used where relatively local control and data logging of an instrument is required.

  • Page 95: Remote Programming

    Remote Control Remote Programming Remote Messages and Commands A remote message is made up of one or more commands. Remote commands are divided into two groups. • Common commands – These commands query/change the instrument’s status, e.g. querying the status groups or identifying the instrument. •...

  • Page 96: Command Structure

    Remote Control For example to access the marker sub system command to move the marker right: :ANALYSIS:MARKER RIGHT Path Command Figure 11-3 Command Path Example Command Structure DISCRETE LUNIT COMMAND REAL INTEGER Figure 11-4 GPIB Command Structure Examples No parameter: :ANALYSIS:MARKER:LEFT Discrete parameter: :METER:BIAS-STAT ON...

  • Page 97: Real Data Errors

    Remote Control Examples String data: IMPEDANCE vs. FREQUENCY Real data: 1.344517e+005 Integer data: Multiple data: 9.243736e+002, 4.748015e+004 Real Data Errors Real data may be output from the instrument containing a leading ‘#’ character. This indicates that the instrument encountered a numerical error while processing the previous GPIB command.
  • Page 98 Remote Control Name Description Not used. Not used. Message available in output queue. Standard Event group summary bit. Service Request. Standard Operation group summary bit. Table 11-4 Status Group Group summary bits are set when the value of the group register masked with the value of the enable register (logical AND) is not zero (logical OR).

  • Page 99: Common Commands

    Remote Control Common Commands Common Commands Standard Event *ESE *ESE? Set the value of the Standard Event Enable group. Query the Standard Event Group enable mask. (See Status Groups section). Parameter Parameter None. The Standard Event Enable group value as an Response integer.

  • Page 100: Options Fitted To The Instrument

    Remote Control Common Commands Options Fitted to the Instrument *OPT? Query the instrument options. Parameter None. Response A comma separated list of options, D1 = /D1 option fitted, 0 = not fitted. Position Option /D1dc bias Status Byte *SRE (GPIB only) *SRE? (GPIB only) Set the value of the Status Byte Enable group.

  • Page 101: Trigger A Measurement

    Remote Control Common Commands Trigger a Measurement *TRG Trigger a measurement. Parameter None. Response Mode dependant. 11–13...

  • Page 102: Status Commands

    Remote Control Status Commands Status (:STATUS) OPERation:ENABle Set the value of the Standard Operation Status group enable register. Parameter The value of the register as an integer Response None. OPERation:EVENt? Query the Standard Operation Group event register, this register latches transitions of the condition register. Parameter None.

  • Page 103: Meter Mode

    Remote Control Meter Mode Meter Mode (:METER) DC Bias BIAS BIAS? Set the output level of the selected bias source. Query the bias source level. Parameter Parameter The required output level as a real. None. Response Response None. The bias source output level as a real number. Example Set 100mA bias current: :METER:BIAS-TYPE CUR...

  • Page 104: Deviation Mode Measurement Display

    Remote Control Meter Mode (:METER) Deviation Mode Measurement Display DEViation-TERM DEViation-TERM? Select the measurement result to use for deviation Query the deviation display measurement term display. Parameter Parameter None. First result. Response Second result. First result. Response Second result. None. DEViation-TYPE DEViation-TYPE? Set the deviation display type.

  • Page 105: Drive Type - Signal Source

    Remote Control Meter Mode (:METER) Drive Type – Signal Source DRIVE? Query the signal source drive type. Parameter None. Response Voltage drive. Current drive. Equivalent Circuit EQU-CCT EQU-CCT? Select the equivalent circuit. Query the equivalent circuit.1` Parameter Parameter Series circuit. None.

  • Page 106: Func:1

    Remote Control Meter Mode (:METER) Functions L, C, Q, D, R, X, Z, Y, θ θ θ θ , B, G FUNC:1 FUNC:1? FUNC:2 FUNC:2? Select 1 or 2 result measurement property. Query the 1 or 2 result measurement property. Parameter.

  • Page 107: Level - Signal Source Output

    Remote Control Meter Mode (:METER) Level – Signal Source Output LEVEL LEVEL? Set the signal source output level. Query the signal source output level. Parameter Parameter The drive level as real number followed by the None. drive type suffix if required: Response Voltage drive.

  • Page 108: Range - Instrument Measurement Range

    Remote Control Meter Mode (:METER) Range – Instrument Measurement Range RANGE RANGE? Select the measurement ranging setting. Query the measurement ranging settings. Parameter Parameter AUTO Auto-range. None. Range 1 Response Range 2 The value returned is the set range prior to making a measurement.

  • Page 109: Scale1-Low

    Remote Control Meter Mode (:METER) SCALE1-Low <real> SCALE1-LOw? SCALE2-Low <real> SCALE2-LOw? Set the 1 or 2 result scale bar low limit. Query the 1 or 2 result scale bar low limit. Parameter Parameter The required limit as a real number. None.

  • Page 110: Speed Of Measurement

    Remote Control Meter Mode (:METER) SHOW-SCALE1 SHOW-SCALE1? SHOW-SCALE2 SHOW-SCALE2? Set the 1 or 2 result scale bar visibility. Query the 1 or 2 result scale bar visibility. Parameter Parameter Scale bar off. None. Scale bar visible. Response Response The result 1 scale bar state. None.

  • Page 111: Trigger

    Remote Control Meter Mode (:METER) TRIGger Trigger a measurement. Parameter None. Response The measurement results as comma delimited real numbers. Example Trigger a meter mode measurement. :METER:TRIG Reply 9.246517e+002, 1.184251e-003 11–23...

  • Page 112: Analysis Mode

    Remote Control Analysis Mode Analysis Mode (:ANAlysis) Trace Averages AVERAGES AVERAGES? Set the number of trace averages. Query the number of trace averages. Parameter Parameter The number of averages as an integer. None. Response Response None. The number of averages as an integer. RESET-AVERAGING Reset the trace averaging values to zero.

  • Page 113: Drive Type - Signal Source

    Remote Control Analysis Mode (:ANAlysis) BIAS-STATe BIAS-STATe? Change the state of the selected bias source. Query the state of the selected bias source. Parameter Parameter Turn bias on. None. Turn bias off. Response Response Bias is off. None. Bias is on. Example Turn bias on: :ANA:BIAS-STAT ON...

  • Page 114: Equivalent Circuit

    Remote Control Analysis Mode (:ANAlysis) Equivalent Circuit EQU-CCT EQU-CCT? Set the equivalent circuit. Query the equivalent circuit. Parameter Parameter Series circuit None. Parallel circuit. Response Response Series circuit. Parallel circuit. None. Auto Fit Fit the Y axes traces to the measured data. Parameter Trace 1 Trace 2...

  • Page 115: Level - Signal Source Output

    Remote Control Analysis Mode (:ANAlysis) Level – Signal Source Output LEVEL LEVEL? Parameter Parameter Set the signal source drive level in non-level None. sweeps. Response Response The signal source drive level as a real number. Use DRIVE? to query the drive type. None.

  • Page 116: Points On The Measurements Results Trace

    Remote Control Analysis Mode (:ANAlysis) MINimum1 MINimum1? MINimum2 MINimum2? Set trace 1 or 2 Y-axis minimum value. Query the trace 1 or 2 Y-axis minimum value. Parameter Parameter The value as a real number. None. Response Response None. The value as a real number Points on the Measurements Results Trace POINT? Query a point on the result trace.

  • Page 117: Property Of Device To Be Measured

    Remote Control Analysis Mode (:ANAlysis) Property of Device to be Measured PROPerty1 PROPerty1? PROPerty2 PROPerty2? Select the measurement property trace 1 or 2. Query the trace 1 or 2 measurement property. Parameter. None. Parameter Response Inductance. Inductance. Capacitance. Capacitance. Q-factor. Resistance.

  • Page 118: Range - Instrument Measurement Range

    Remote Control Analysis Mode (:ANAlysis) Range – Instrument Measurement Range RANGE RANGE? Select the measurement ranging setting. Query the measurement ranging settings. Parameter Parameter AUTO Auto-range. None. Range 1 Response Range 2 Auto-range Range 3 Range 1 Range 4 Range 2 Range 5 Range 3 Range 6...

  • Page 119: Speed Of Each Individual Measurement

    Remote Control Analysis Mode (:ANAlysis) Speed of Each Individual Measurement SPEED SPEED? Set the required measurement speed Query the measurement speed. Parameter Parameter. MAXimum Maximum speed. Maximum speed. FAST Fast speed. Fast speed. MEDium Medium speed. Medium speed. SLOW Slow speed. Slow speed.

  • Page 120: Title - The Graph

    Remote Control Analysis Mode (:ANAlysis) Title – the Graph TITLE TITLE? Set the graph title. Query the graph title. Parameter Parameter The graph title as a string enclosed in single None. quotes. Response Response The graph title that is currently set as a string. None.

  • Page 121: Delta Marker

    Remote Control Analysis Mode – Marker (ANAlysis:MarKeR) Delta Marker DELTA-PARAMETER DELTA-PARAMETER? Set the parameter value to which the delta marker Query the delta marker parameter value. will be relative. Parameter Parameter None. The value as a real number. Response Response The delta parameter value as a real number.

  • Page 122: Position

    Remote Control Analysis Mode – Marker (ANAlysis:MarKeR) POSITION POSITION? Move the selected marker to the position nearest Query the marker position. the parameter value. Parameter Parameter None. The parameter value as a real number. Response Response The parameter value of the selected marker None.

  • Page 123: Right

    Remote Control Analysis Mode – Marker (ANAlysis:MarKeR) RIGHT Move the selected marker right. Parameter None. Response None. SEARCH-FIND Move the marker to the peak/dip for the selected trace. Parameter None. Response None. SEARCH-LEFT Move the marker to the next left peak/dip. Parameter None.

  • Page 124: Search-Next-Low

    Remote Control Analysis Mode – Marker (ANAlysis:MarKeR) SEARCH-NEXT-LOW Move the selected marker to the next lowest peak/dip. Parameter None. Response None. SEARCH-RIGHT Move the selected marker right. Parameter None. Response None. SEARCH-TRACE SEARCH-TRACE? Parameter Select the trace to use for peak searching as Parameter None.

  • Page 125: Select

    Remote Control Analysis Mode – Marker (ANAlysis:MarKeR) SELECT SELECT? Select the active marker Query the active marker selected Parameter Parameter An integer in the range 1 to 8 None Response Response None. An integer in the range 1 to 8 STATE STATE? Enable disable the active marker...

  • Page 126: Calibration

    Remote Control Calibration Calibrate (:CAL) Open Circuit Trim OC-TRIM OC-TRIM? Perform an open circuit trim. Query the trim status. Parameter Parameter None. None. Response Response The trim result. The trim status. Trim passed. Trim valid. Trim failed. Trim invalid. Short Circuit Trim SC-TRIM SC-TRIM? Perform a short circuit trim.

  • Page 127: 12. Specifications

    12. SPECIFICATIONS This chapter details the nominal specification for the 6500B series. CHAPTER CONTENTS Measurement Parameters....................12–2 AC Functions ........................12–2 Equivalent Circuit ......................12–2 Test Conditions........................12–2 Frequency Range ......................12–2 AC Drive......................... 12–3 Internal DC Bias /D1 (Optional)..................12–3 Measurement Speeds ......................

  • Page 128: Measurement Parameters

    Specifications Wayne Kerr Electronics Limited reserves the right to change specification without notice Measurement Parameters Any of the following parameters can be measured and displayed. AC Functions Capacitance (C), Inductance (L), Resistance (R), Reactance (X), Conductance (G), Susceptance (B), Dissipation Factor (D), Quality Factor (Q), Impedance (Z), Admittance (Y) and Phase Angle (θ).

  • Page 129: Ac Drive

    Specifications AC Drive Drive Level (AC Measurements) Open Circuit Voltage Short Circuit Current 10mV to 1V rms (< 50MHz ) 200µA to 20mA rms (< 50MHz) 10mV to 0.5V rms ( > 50MHz ) 200µA to 10mA rms ( > 50MHz ) Signal source impedance: 50 nominal Internal DC Bias /D1 (Optional) Current...

  • Page 130: Measurement Accuracy

    Specifications When set to the maximum speed the typical 6500 measurement times are as follows:- Meter Mode Analysis Mode 1kHz 250ms 190ms 10kHz 70ms 70ms 100kHz 70ms 70ms >1MHz 60ms 60ms Measurement Accuracy The accuracy statements given apply when the instrument is used under the following measurement conditions.

  • Page 131: Measurement Ranges

    Specifications Measurement Ranges R, Z, X 0.01m to >2G G, Y, B 0.01nS to >2kS 0.1nH to >2kH 1fF to >1F 0.00001 to >1000 0.00001 to >1000 Internal Hardware Ranges The impedance of the Device under Test (DUT) and the measurement frequency determine the hardware range used internally.

  • Page 132: Set-Up Data

    Specifications Set-up Data Up to 20 instrument set-ups may be locally stored for each mode. Additional set-ups in either mode may be stored on the external USB memory. General Power Supply Input Voltage 90V – 264V AC, auto-ranging Frequency 47 – 63Hz VA rating 150VA max Input fuse rating...

  • Page 133: Mouse Interface

    Specifications Mouse interface Standard USB or PS/2 mouse port. Touch screen remains enabled with the mouse. Keyboard interface Standard USB or PS/2 keyboard port. Instrument front panel remains active with the keyboard. Mechanical Height 190mm (7.5") Width 440mm (17.37") Depth 525mm (20.7") Weight 13.8kg (30.4 lbs)
  • Page 134 Specifications This page left blank. 12–8...

  • Page 135: 13. Theory Reference

    13. THEORY REFERENCE Outlined in this chapter are the abbreviations used in this manual and the 6500 series instruments. The formulae section documents the derivation of the measurement parameters. CHAPTER CONTENTS Abbreviations........................13–2 Formulae ..........................13–3 Series / Parallel Conversions ..................13–4 Polar Derivations ......................

  • Page 136: Abbreviations

    Theory Reference Abbreviations Susceptance (= 1/X) Resistance Capacitance Reactance Dissipation factor (tan δ) Admittance (= 1/Z) Voltage Impedance Conductance (= 1/R) ω 2π x frequency Current Inductance Subscript s ( ) = series Quality (magnification) factor Subscript p ( ) = parallel 13–2...

  • Page 137: Formulae

    Theory Reference Formulae (all terms complex) ω ω ω ω where ω ω ω ω ω (series values) ω ω (parallel values ω ω (parallel values) ω ω (series values) ω Note value constant regardless series/par allel convention 13–3...

  • Page 138: Series / Parallel Conversions

    Theory Reference Series / Parallel Conversions                 Conversions using the above formulae will be valid only at the test frequency. Polar Derivations θ θ θ θ...

  • Page 139: 14. Maintenance, Support And Services

    14. MAINTENANCE, SUPPORT AND SERVICES Consult this chapter if the instrument requires calibration or maintenance. Service centre addresses are given at the end of the chapter. CHAPTER CONTENTS Guarantee ..........................14–2 Maintenance........................14–2 Cleaning .......................... 14–2 Safety Checks ......................... 14–2 Service Centres ........................

  • Page 140: Guarantee

    Maintenance, Support and Services Guarantee The equipment supplied by Wayne Kerr Electronics is guaranteed against defective material and faulty manufacture for a period of twelve months from the date of dispatch. In the case of materials or components employed in the equipment but not manufactured by us, we allow the customer the period of any guarantee extended to us.

  • Page 141: Service Centres

    Maintenance, Support and Services Service Centres In the event of difficulty, or apparent circuit malfunction, it is advisable to contact the service centre or your local sales engineer or agent (if overseas) for advice before attempting repairs. For repairs and recalibration it is recommended that the complete instrument be returned to one of the following:- Wayne Kerr Electronics Inc.
  • Page 142 Maintenance, Support and Services This page left blank 14–4...
  • Page 143 INDEX Bias ............................3–7 Cleaning ..........................14–2 Connections aux control out ........................3–5 DC bias input ........................3–5 parallel printer........................3–5 Control keys..........................4–3 Data entry keypad key sequence examples ......................4–5 Data entry keys ......................... 4–4 DC bias current ......................... 3–7 Frequency range............................
  • Page 144 O/C trim ..........................5–3, 5–4 Power cable connections........................1–3, 3–2 fuse rating..........................1–3 ground conductor ........................1–3 Printer connector..........................3–5 output ............................ 3–6 Rack mounting .......................... 3–3 S/C trim ..........................5–3, 5–4 Safety check each year ........................14–2 general ........................... 1–2 power supply .........................

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