Fluke Calibration 9500B Calibration Manual Download Page 125

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High Performance Oscilloscope Calibrator

9510/9530/9550/9560 Head Calibration Procedures

119

Equipment Requirements

•

The UUT Active Head, connected to a verified Model 9500B Mainframe.

•

A high resolution Standards DMM with RMS AC Voltage accuracy of ±0.3 % or

better, from 10 mV to 3 V at 1 kHz.
Example: Model 1281 Digital Multimeter.

•

An adaptor to convert from BNC or PC3.5 to 4 mm leads.
Example: Model 4955 Calibration Adaptor.

•

Short, high-quality 4 mm leads for connection between the Calibration Adaptor

the DMM.

Calibration Setup

Connections: Ensure that the 9500B is connected to the DMM as shown in Figure 18,

or via a similar BNC or PC3.5 to 4 mm adaptor, and that both instruments

are powered on and warmed up.

erw238

Figure 18. LF Sine Voltage Calibration — Interconnections

Summary of Contents for 9500B

Page 1: ...9 Fluke Corporation All rights reserved Specifications subject to change without notice All product names are trademarks of their respective companies 9500B High Performance Oscilloscope Calibrator Ca...

Page 2: ...Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destinati...

Page 3: ...the Filter Element 4 Refitting the Top Cover 4 Replacement Parts 4 Firmware Upgrade 4 Introduction 4 Procedure 5 Active Heads 7 Model 9500B Test and Selftest 7 Types of Tests 7 Test Mode 7 Base Heads...

Page 4: ...ter User Calibration 36 Equipment Requirements 36 Interconnections 37 Verification Points 37 Specification Limits 37 Verification Procedure 37 9500B Mainframe Verification by Functions 37 Verifying th...

Page 5: ...Configurations 89 Waveform Selection 90 Hardware Configurations 90 Channel Selections 90 Retained Channel Memory 91 Default or Saved Targets 91 The Adjustment Screen 91 Setting Target Values 91 Select...

Page 6: ...ibration Procedures 118 Levelled Sine Function LF Gain 118 Levelled Sine Function HF Calibration 120 Calibrating the Edge Function 128 Calibrating the Timing Markers 9510 only 140 Load Capacitance Fun...

Page 7: ...ations See Specifications Erw001 Figure 1 General View of Model 9500B with an Active Head Contact Fluke Calibration Calibration To contact Fluke Calibration Calibration call one of the following telep...

Page 8: ...e General Cleaning W Warning To prevent fire explosion or personal injury disconnect the power line cord before cleaning Remove dust from the top cover using a soft brush do not use a cloth unless it...

Page 9: ...the two screws securing the top cover to the rear panel 3 Pull the top cover to the rear to clear the front bezel then lift off to the rear Top Guard Shield and Calibration Seal W Caution With the cov...

Page 10: ...rivets become damaged by removal or refitting the following parts can be ordered through your Fluke Calibration Sales and Service Center See Table 1 Table 1 Order Details for Replacement Parts Part No...

Page 11: ...f the results 2 Prepare the 9500B a Switch 9500B Power OFF b Locate the FACTORY SET switches on the 9500B rear panel erw162 1 Remove the switch cover by releasing its retaining screw erw163 2 Set Swit...

Page 12: ...ard switch the 9500B Power ON and wait for approximately 40 seconds until the Power On Selftest is complete e On the right of the 9500B front panel press the Mode key f At the bottom of the 9500B LCD...

Page 13: ...Test and Selftest Types of Tests There are four main types of selftest Base Heads All and Fast The Fast selftest is also performed automatically at power on In addition the interface for front panel o...

Page 14: ...FAST Runs the same confidence selftest as at Power On INTERFACE This key allows checks of the display and display memory the front panel keyboard the Procedure mode memory card slots the tracker ball...

Page 15: ...nd displays the appropriate ABORTED screen For example erw170 If there were no failures up to the point of aborting this is shown on the screen EXIT Returns to the Select test menu screen PRINT Prints...

Page 16: ...ountered described later in Viewing the Test Results Selftest Runs to Completion If the selftest is not aborted it will run to completion and if the test is successful with no failures a screen will a...

Page 17: ...r A brief description of the test is also given in a box beneath the values The screen for viewing the test results is shown below This can also appear when a test has been aborted erw174 Note If the...

Page 18: ...ch Power Off and report the fault to your Service Center The first normal action at power on is to show the Fluke Calibration logo and Product name and then the 9500B will run a fast selftes If System...

Page 19: ...acker ball and the correct operation of a connected printer Access to Interface Tests Once the Test mode has been selected Interface Test is selected by pressing the INTERFACE screen key in the Select...

Page 20: ...on the Select test menu screen transfers to the Memory test screen and the sequence of tests begins The test in progress is reported on the screen erw180 erw181 The other tests reported are Performin...

Page 21: ...If a failure is reported rectification will require access to the internal circuitry so no further user action is recommended except to report the result to your Fluke Calibration Service Center EXIT...

Page 22: ...te closely to the physical layout of keys The Key name Z is the name in words which describes the last key to be pressed If the reported key name does not coincide with the function of the last key to...

Page 23: ...band as it jumps back to the top of the screen If there are elements of the screen which do not show light in the light background or dark in the dark band as it is advanced down the screen then this...

Page 24: ...urally will be the one to choose The WARNING gives notice that the inserted memory card will be overwritten by this test This is because reformatting is required to perform the checks and the card ins...

Page 25: ...w191 If there is no battery in the card or if the battery cannot support read write operations then the statement will be Battery level is dead Note For a re chargeable card with a low battery the low...

Page 26: ...into Results Card format A new message appears on the display Performing RESULTS CARD format Providing that the full range of tests and formatting is completed successfully the PASS statement is adde...

Page 27: ...in the other slot then if this is successful check a new card in the original slot This should narrow the fault down to one slot or one card If it is suspected that the 9500B is at fault it is wise t...

Page 28: ...s not correspond to the last physical movement then a failure is implied It is possible to diagnose the defect source by checking a second tracker unit on the same 9500B or the same tracker unit on a...

Page 29: ...t is possible to diagnose the defect source by checking a second printer unit on the same 9500B or the same printer unit on a different 9500B Rectification may require access to the internal circuitry...

Page 30: ...line after printing This line is fixed _H high by the 9500B to disable autofeed 15 ERROR_L Input Printer is in Paper End Offline or Error state 16 INIT_L Output Commands printer to reset to power up s...

Page 31: ...FAILURES D 8 1 5 289216 5 4 5 5 6 D 8 2 5 486493 5 2 5 6 4 72 D 8 3 14 646128 15 14 25 15 75 47 ERR Gives the achieved percentage of full tolerance for that test FAILURES In this column a failure is s...

Page 32: ...following errors an error number will be allocated at run time UNDEFINED SYSTEM TRIP ERROR OPERATING SYSTEM ERROR Recoverable Errors Type of Errors These consist of Command Errors Execution Errors Que...

Page 33: ...t 5 is set true in the Standard defined Event Status Byte and the error code number is appended to the Error Queue Command Error Reporting The error is reported by the mechanisms that deal with status...

Page 34: ...ller fails to follow the Message Exchange Control Protocol as follows DEADLOCK State The device has been asked to buffer more data than it has room to store the Output Queue is full blocking the Respo...

Page 35: ...orrect 7010 Month entry is not a valid month 7011 Day entry is not a valid day 7012 Hours entry is not a valid number 7013 Minutes entry is not a valid number 7014 Entry does not give a valid time set...

Page 36: ...lid test number 9062 No more failures to view 9063 No more tests to execute 9067 Search procedure NO test point 9068 Search procedure Function ID expected 9069 Test must be executed first 9070 Please...

Page 37: ...on 1024 Head interrupt OFF timeout 1025 Zero Skew requires at least two heads 1026 Output must be ON 1027 Alignment must be adjusted before deselecting default 1028 Head on channel 1 has not been reco...

Page 38: ...M 5013 Corrupt VCO correction 5014 Failed to save VCO correction 5015 Corrupt lf sin dc offset correction 5016 Failed to save lf sin dc offset correction 5017 Corrupt timing marker zero correction 501...

Page 39: ...no 1st reading 4052 Cap meas no 2nd reading 4053 Cap meas outside limits 4055 Corrupt calibration factors 4056 Failed 4057 Corrupt selfcal factor 4058 Corrupt res ref factor 4059 Corrupt offset DAC f...

Page 40: ...DAC positive FR 4514 Limits DAC negative FR 4515 Limits DAC FR ratio 4516 Limits DAC max DAC min 4517 Limits resistor ratios 4518 Failed to save resistor ratios 4519 Limits main DAC offset 4520 Failed...

Page 41: ...s must be within the range 0 30 7017 Safety voltage must be within the range 10V and 110V 7018 Borderline value must be within the range 10 00 99 99 7019 Entry does not match previous password entry 7...

Page 42: ...racy Without these standards users may rely on an external support organization for verification probably also using these organizations to recalibrate the unit at appropriate intervals Verification a...

Page 43: ...its specification As mentioned earlier the accuracy specifications detailed in the 9500B Extended Specifications found online are absolute accuracies which incorporate all the uncertainties involved i...

Page 44: ...rconnections in Interconnections The DC Function is verified by carrying out measurements of amplitude in the sequence given in Verification Setup at the verification points shown in Tables 2 and 3 Eq...

Page 45: ...er Ratio if required Verification Procedure Refer to Tables 2 and 3 Follow the correct sequence of verification points as shown on the tables and carry out the following operations 1 to 6 at each veri...

Page 46: ...5 mV 6 0265 mV DC6 19 000 mV 18 9703 mV 19 0297 mV DC7 23 000 mV 22 9693 mV 23 0307 mV DC8 50 000 mV 49 9625 mV 50 0375 mV DC9 60 000 mV 59 960 mV 60 040 mV DC10 190 00 mV 189 928 mV 190 073 mV DC11 2...

Page 47: ...02625 mV DC5 6 0000 mV 5 9735 mV 6 0265 mV DC6 19 000 mV 18 9703 mV 19 0297 mV DC7 23 000 mV 22 9693 mV 23 0307 mV DC8 50 000 mV 49 9625 mV 50 0375 mV DC9 60 000 mV 59 960 mV 60 040 mV DC10 190 00 mV...

Page 48: ...Voltage accuracy of 0 01 or better from 2 5 mV to 35 V at 1 kHz Example Model 1281 Digital Multimeter An adaptor to convert from BNC to 4mm leads Example Model 4955 Calibration Adaptor Short high qual...

Page 49: ...0B Set the O P Volts p p and waveform as required for the verification point 4 4955 If using the Model 4955 Calibration Adaptor set its switch to SQV o c If not using the Model 4955 ensure that the DM...

Page 50: ...ication points Note Please copy the following table Enter the measurements in the Measured Value column on the copy Table 4 DC Square Square Verification at 1 kHz into 1 M Load Verif Point 2 Frequency...

Page 51: ...lue column on the copy Table 6 DC Square Square Symmetrical Verification at 1 kHz into 1 M Load Verif Point Frequency Output Voltage pk pk Absolute Limits pk pk Output Voltage RMS Absolute Limits RMS...

Page 52: ...Calibration Adaptor Short high quality 4 mm leads Interconnections Refer to Figure 5 given below Verification Setup 1 Connections Ensure that the 9500B is connected to the DMM as shown in Figure 4 or...

Page 53: ...ote This factor applies only when the Standards DMM input is AC Coupled through a large capacitance It is based on the use of a model 4955 set to SQV 50 6 Amplitude a Measure the RMS Output Voltage va...

Page 54: ...carrying out measurements of Period in the sequence given in Verification Procedure at the verification points shown in Table 8 Equipment Requirements The UUT Model 9500B Mainframe with 9510 or 9530...

Page 55: ...the table and carry out the following operations 1 to 5 at each verification point 1 Verification Points Refer to Table 8 2 Counter Select the correct display time trigger source and level to measure...

Page 56: ...r For example a Model 1281 Digital Multimeter An adaptor to convert from BNC to 4mm leads incorporating switchable 50 and 1 M reference loads For example a Model 4955 Calibration Adaptor Short high qu...

Page 57: ...1 Verification Points Refer to Table 9 2 9500B Ensure that OUTPUT is OFF 3 If using the Model 4955 Calibration Adaptor a Ensure that the Active Head output BNC is disconnected from the Model 4955 inp...

Page 58: ...ect the Active Head output BNC to the Model 4955 input 8 If not using the Model 4955 disconnect the load resistor from the DMM and reconnect it to the 9500B Active Head output BNC 9 Press the ON key t...

Page 59: ...0 Active Head Digital counter for 0 25 ppm clock accuracy measurements Example Hewlett Packard Model HP53131A with Option 012 Interconnections Refer to Figure 8 erw206 Figure 8 Pulse Width Verificatio...

Page 60: ...er PW1 4 0000 ns 3 6000 ns 4 4000 ns PW2 20 000 ns 18 800 ns 21 200 ns PW3 100 00 ns 95 20 ns 105 20 ns 9510 9530 9550 9560 Head Verification by Functions This section is a guide to the process of ver...

Page 61: ...Procedure at the verification points shown in Table 11 Equipment Requirements The UUT Active Head connected to a verified Model 9500B Mainframe refer to Verifying the LF Sine Voltage Function A high...

Page 62: ...le and carry out the following operations 1 to 7 at each verification point 1 Verification Points Refer to Table 11 2 DMM Select the correct RMS Voltage range for the verification point RMS Output Vol...

Page 63: ...rif Point Freq Output Voltage pk pk Limits pk pk Output Voltage RMS Limits RMS Measured Value RMS Calculated Value Lower Higher Lower Higher SGN1 1kHz 1 0000V 0 020V 0 020V 0 35355V 7 07mV 7 07mV SGN8...

Page 64: ...on points shown in Tables 12 13 14 and 15 Note Heads can be verified only within the bandwidth of the mainframe E g Head Model 9510 with Mainframe Variant 9500B 600 can only be verified to 600 MHz Equ...

Page 65: ...ON 4 Power Meter Select a power range which gives an on scale reading the example Power Meter auto ranges to accommodate the input power 5 Ref a Measure the 9500B output power at 50kHz and calculate...

Page 66: ...e is compared against the power meter reading at 50 kHz by checking that it is within Acceptance tolerance limits about the 50 kHz value To calculate the Acceptance tolerance limits at each verificati...

Page 67: ...hat the Measured p p Voltage is at or between the Flatness Acceptance Limits Note Please copy the following table Enter the measurements in the Measured Value column on the copy Table 12 Sine Flatness...

Page 68: ...its Measured p p Voltage for Flatness Check of Output Um Lower Higher Ref 2 1 V 50 kHz SF13 10 MHz 2 0 SF14 50 MHz 2 0 SF15 100 MHz 2 0 SF16 250 MHz 2 0 SF17 400 MHz 2 5 SF18 550 MHz 2 5 SF19 600 MHz...

Page 69: ...ncertainty Flatness Acceptance Limits Measured p p Voltage for Flatness Check of Output Um Lower Higher Ref 3 300 mV 50 kHz SF26 10 MHz 2 0 SF27 50 MHz 2 0 SF28 100 MHz 2 0 SF29 250 MHz 2 0 SF30 400 M...

Page 70: ...its Measured p p Voltage for Flatness Check of Output Um Lower Higher Ref 4 100 mV 50 kHz SF39 10 MHz 2 0 SF40 50 MHz 2 0 SF41 100 MHz 2 0 SF42 250 MHz 2 0 SF43 400 MHz 2 5 SF44 550 MHz 2 5 SF45 600 M...

Page 71: ...ck The Edge Function is verified by carrying out measurements of risetime in the sequences given in Verification Setup and Verification Measurement Procedure at the verification points shown in Table...

Page 72: ...scope Select the required function to measure edge response W Caution The 9500B Edge function output is capable of generating voltages that may cause damage to sampling oscilloscope inputs with limite...

Page 73: ...loscope a Select the correct channel b Select the correct sweep speed trigger level trigger edge and channel sensitivity to measure at the verification point 5 9500B Set Output ON 6 Oscilloscope a Adj...

Page 74: ...ps to 150 ps Considering the upper limit Acceptance Limit 2 2 50 20 ps ps 53 85 ps We must now add this Acceptance Limit to the Nominal value of 500 ps giving the Upper Acceptance Limit of 553 85 ps C...

Page 75: ...9500B Displayed Rise Time Value 10 90 pk pk EDG01 25 000 mV 150 ps 50 ps ps ps ps ps EDG02 ps ps ps ps EDG03 50 000 mV 150 ps 50 ps ps ps ps ps EDG04 ps ps ps ps EDG05 250 00 mV 150 ps 50 ps ps ps ps...

Page 76: ...rification points EDG11 to EDG20 available for Active Head Model 9530 only 9500B displayed value accuracy specification for s 40 ps for 15 ps for 11 ps for 4 ps Verification points EDG21 to EDG28 avai...

Page 77: ...between 85 pF and 95 pF Suitable capacitance values can be constructed from a length of coaxial cable fitted with a BNC connector at one end and open circuit at the other Measure the capacitance valu...

Page 78: ...front panel Press the soft key on the bottom row b Select the required output Signal Channel 9500B Absolute Limit Calculations 1 Refer to Table 17 Ensure that the Test Capacitance Calibrated Values ha...

Page 79: ...ut ON and wait for the Load Capacitance reading to settle 4 Reading a Record the 9500B reading in the Measured Value column of the copy of the Table b Check that the Measured Value is at or between th...

Page 80: ...ssary to lose the entire system while it is being performed In addition to being supported by traditional scope calibration standards the 9500B s mainframe and its Active Heads are calibrated separate...

Page 81: ...measurement functions Termination Compensation functions Head calibration involves the use of a verified 9500B Mainframe Note Heads can be calibrated only within the bandwidth of the mainframe For exa...

Page 82: ...sting the 9500B output values to calibrate Cal Ranges thereby storing correction factors in non volatile Calibration Memory 3 Front Panel Base Calibration by Functions section details front panel oper...

Page 83: ...rame Standard Calibration STD CAL o Function Selection o Cal Mode Function Screens o Hardware Configurations o Target Calibration Values Overview of Calibration Operations Mode Selection Mode Key Sele...

Page 84: ...re the Calibration mode menu screen can be accessed 1 The rear panel Calibration Enable switch must be in the ENABLE position 2 A valid password must have been entered via the front panel keypad Calib...

Page 85: ...l appear on the screen as shown above Once the correct password has been entered pressing the Enter key will result in the Calibration Mode menu screen being displayed If the wrong password is used th...

Page 86: ...password These calibration operations only need to be performed when the instrument is manufactured or after certain types of repair have been carried out on it The password is not given in this manu...

Page 87: ...total quality management system this artificial step would need to be determined and suitably recorded in these records There are no performance advantages to be gained by characterizing at any time...

Page 88: ...on at 100 MHz This is applied to the external frequency standard and the internal frequency DAC factor is adjusted until the external counter registers 100 MHz When to Adjust The 9500B Frequency Uncer...

Page 89: ...n in Selecting Special Calibration Sequence of Operations erw218 1 9500B In the Special Cal screen press the Adjust FREQ soft key on the bottom row This transfers to the Frequency Adjustment screen 2...

Page 90: ...BASE CAL screen softkey displays a DC Square DC CAL function screen the Target Selection screen shown below which appears on entry to Standard Calibration erw219 Other available Mainframe calibrations...

Page 91: ...d for life during manufacture or are adjusted during Head calibration Attempting to select these functions during Mainframe calibration while the Model 9500B is in CAL mode will result in an error mes...

Page 92: ...se to the lower and upper extremes of the hardware configuration s output capability Overview of Calibration Operations In general calibration of each of the 9500B s hardware configurations can be bro...

Page 93: ...High Performance Oscilloscope Calibrator The Model 9500B Calibration Mode 87 erw223 Figure 13 Access to Functions in Calibration Mode...

Page 94: ...nel Selections o Retained Channel Memory o Default or Saved Targets The Adjustment Screen o Setting Target Values o Selecting Default Calibration Targets o Modifying a Calibration Target Calibrating t...

Page 95: ...9500B s output error at each of these target values and generate a suitable compensating correction factor This section Standard Calibration Basic Sequences describes the general process of calibrati...

Page 96: ...V to 55 60 V 11 55 60 V to 222 40 V Hence hardware configuration 1 can be selected by setting the Cal Range to 1 Hardware configuration 2 can be selected by setting the Cal Range to 2 etc using the a...

Page 97: ...an the default target The save action is described later in The Adjustment Screen The Adjustment Screen Using this screen action is taken to perform the adjustment at or close to the selected calibrat...

Page 98: ...s rather than the values at which your 9500B was previously calibrated assuming that the saved and default values are different simply press the DEFAULT TARGETS softkey on the Target Selection screen...

Page 99: ...have appeared against that saved target unless the DEFAULT TARGETS key is highlighted If default targets remain selected then they will not have changed merely press the DEFAULT TARGETS key to return...

Page 100: ...as the target value Note that the O P Amplitude display will now include the error Note Limits are placed on the extent to which the Output Amplitude value can be changed In our example at 1 0000 mV t...

Page 101: ...ration Service Center Standard Calibration of AC Functions Standard calibration of the Square Voltage and Sine Voltage functions in the 9500B uses the same procedure as that described in sections Intr...

Page 102: ...de frequency range is given Once the target has been saved the new saved Frequency will be shown as well as any new saved Target Amplitude on the Target Selection screen when the DEFAULT TARGETS soft...

Page 103: ...he cal due date or its advance warning period press the EXIT key This terminates the calibration session and you will be returned to the Mode Selection screen to select another mode Update the Date St...

Page 104: ...y Setting the Cal Due Date To set a new CAL DUE DATE use the alphanumeric keypad to type in the required due date then press the Enter key Note that the screen presentation uses the DATE TIME format s...

Page 105: ...of calibrating the Model 9500B s functions from the front panel Other Functions No calibration is required for the following functions as they are either calibrated for life at manufacture or calibrat...

Page 106: ...the Special Calibration screen Note The Characterize operations 8 12 below should be performed once only immediately before performing Standard Calibration of the 9500B It is not necessary to repeat...

Page 107: ...tput values to select them can be found in the detailed procedures provided later in this section 18 a If you wish to use the saved target calibration points used during the previous calibration of th...

Page 108: ...yed in the Target Selection screen 26 Repeat steps 16 to 24 for each of the Cal Ranges associated with the 9500B function that is being calibrated 27 Repeat steps 14 to 25 for each function of the 950...

Page 109: ...ng the Model 9500B s DC Square Function DC Voltage using its front panel controls Calibration Equipment Requirements Interconnections Calibration Setup Calibration Procedure Calibration Equipment Requ...

Page 110: ...rigger channel and Trigger Ratio if required via the Target Selection screen Calibration Procedure 1 Starting at Cal Range 1 calibrate at all calibration points listed in Table 19 by performing operat...

Page 111: ...DMM is the same as the displayed Target Amplitude value Note Make sure to allow for any settling time required by the external measuring instrument 10 When you are satisfied with the measurement pres...

Page 112: ...90 V 24 610 V 50 000 V 46 500 V 53 500 V 11 55 60 V 222 40 V 60 000 V 55 800 V 64 200 V 190 00 V 176 70 V 203 30 V Table 20 DC Square DC Voltage Negative Hardware Configurations and Calibration Target...

Page 113: ...uirements Interconnections Calibration Setup Calibration Procedure Calibration Equipment Requirements The UUT Model 9500B with 9510 or 9530 Active Head A high resolution Standards DMM with RMS AC Volt...

Page 114: ...us calibration of the 9500B do not press the DEFAULT TARGETS screen key b If you wish to use the default target calibration points defined for this hardware configuration press the DEFAULT TARGETS scr...

Page 115: ...urement press the ACCEPT CALIB key to generate and implement the correction factor required by the 9500B to ensure that its displayed O P Amplitude value and measured output value coincide The O P Amp...

Page 116: ...V 46 500 V 53 500 V 11 1 kHz 0 9500 kHz 1 0500 kHz 55 60 V 222 40 V 60 000 V 55 800 V 64 200 V 190 00 V 176 70 V 203 30 V Table 22 DC Square Square Waveform Negative Hardware Configurations and Calibr...

Page 117: ...mV 465 00 mV 535 00 mV 7 1 kHz 0 9500 kHz 1 0500 kHz 556 00 mV 2 10 V 600 00 mV 558 00 mV 642 00 mV 1 9000 V 1 7670 V 2 0330 V 8 1 kHz 0 9500 kHz 1 0500 kHz 2 10 V 5 56 V 2 3000 V 2 1390 V 2 4610 V 5...

Page 118: ...ure that the 9500B is in BASE CAL mode and then select the LF Sine function From entry default in the Target Selection screen press the key on the right of the Front Panel Select the required output S...

Page 119: ...24 b If you wish to change the target calibration point amplitude use the TAB key to position the cursor on the Target Amplitude value Now use any editing mode to change this value note that the new...

Page 120: ...unctions are being calibrated in addition to Square Waveform refer to Table 15 for information on sequencing calibrations Table 24 LF Sine Function Hardware Configurations and Calibration Targets Func...

Page 121: ...Setup Calibration Procedure Calibration Equipment Requirements The UUT Model 9500B with 9510 or 9530 Active Head A traceable high resolution Standards DMM used to measure resistance at 50 50 k 1 M and...

Page 122: ...he 9500B do not press the DEFAULT TARGETS screen key b If you wish to use the default target calibration points press the DEFAULT TARGETS screen key c Saved default targets should be considered as nom...

Page 123: ...the cursor controls and or spinwheel 12 Press the ACCEPT CALIB key to generate and implement the correction factor The Measured Res value will change to the Target Res value and the adjustment of the...

Page 124: ...functions should be calibrated Head calibration requires the use of a verified 9500B Mainframe Note Heads can be calibrated only within the bandwidth of the mainframe see Table 26 e g Head Model 9510...

Page 125: ...kHz Example Model 1281 Digital Multimeter An adaptor to convert from BNC or PC3 5 to 4 mm leads Example Model 4955 Calibration Adaptor Short high quality 4 mm leads for connection between the Calibra...

Page 126: ...til no TARGETs remain Table 27 Levelled Sine Function LF Gain Cal Point Frequency O P Volts O P Loads Target 1 1 kHz 1 3 0000 V 50 Target 2 1 kHz 1 0072 V 50 Target 3 1 kHz 316 49 mV 50 Target 4 1 kHz...

Page 127: ...Meter model 6960B Rhode and Swartz NRVZ with NRV 25 Head Precision N to BNC or PC3 5 Adapter for signal connection from the UUT Active Head to the input of the RF Power Meter head for Amplitude measu...

Page 128: ...0 MHz Target 3 2 0000 V 250 MHz Target 4 3 0000 V 250 MHz Target 5 5 5000 V 250 MHz Calibration Procedure Levelled Sine Function HF Flatness 1 9500B Ensure that the 9500B is in HEAD CAL Sine Hi Frq Si...

Page 129: ...z Levelled Sine Function HF Linearity 9530 only 1 9500B Ensure that the 9500B is in HEAD CAL Sine 3 GHz Sine mode LIN 2 The following process takes you through all TARGETs in Table 30 3 9500B Set Outp...

Page 130: ...ower 20 6 Press ACCEPT CALIB 7 Select the next TARGET and return to step 4 repeat until no TARGETs remain 8 Press NEXT FREQ then select TARGET 1 and return to step 4 repeat until no TARGETs remain Tab...

Page 131: ...00 mV 1 2 GHz Target 2 700 00 mV 1 2 GHz Target 3 1 0000 V 1 2 GHz Target 4 1 6000 V 1 2 GHz Target 5 2 4000 V 1 2 GHz Target 6 3 5000 V 1 2 GHz Calibration Procedure 6 GHz Levelled Sine Function HF F...

Page 132: ...GHz Targets 56 60 2 90 GHz Targets 26 30 2 20 GHz Targets 61 65 3 00 GHz Targets 31 35 2 30 GHz Targets 66 70 3 10 GHz Targets 36 40 2 45 GHz Targets 71 75 3 20 GHz Calibration Procedure 6 GHz Levell...

Page 133: ...sequentially calibrates all amplitudes at one frequency before repeating the same amplitude calibration points at the next frequency step 2 9500B Set Output ON 3 Power Meter Select a range that gives...

Page 134: ...e Function Summary The Edge Function is calibrated by applying risetime corrections in the sequences given in Calibration Procedure 500ps Edge Linearity through Calibration Procedure 25ps Edge Speed E...

Page 135: ...andwidth coaxial attenuator may be required if 9500B edge output voltage exceeds oscilloscope input capability Example HP8493C opt 20 26 5 GHz 3 5mm 20 dB attenuator Calibration Setup 1 Connections En...

Page 136: ...til no TARGETs remain Table 36 Edge Function 500 ps Edge Linearity Cal Point Voltage Frequency Edge Target 1 1 0000 V 100 kHz Rising Target 2 2 0000 V 100 kHz Rising Target 3 2 5000 V 100 kHz Rising T...

Page 137: ...a measurement device range that gives an on scale reading 7 Note the rise or fall time of the edge and enter it into the Edge Speed field on the 9500B Make sure allowance is made for the rise time of...

Page 138: ...TARGET in Table 39 by pressing NEXT TARGET and return to step 4 repeat until no TARGETs remain Table 39 Edge Function 150 ps Edge Linearity Cal Point Voltage Frequency Edge Target 1 1 0000 V 100 kHz R...

Page 139: ...onnected to the oscilloscope as shown in Figure 20 and that both instruments are powered on and warmed up 2 Select the required 9500B Trigger Channel Cable Select and Trigger Ratio settings 3 Select t...

Page 140: ...earity 1 Ensure that the 9500B is connected to the oscilloscope as shown in Figure 20 and that both instruments are powered on and warmed up 2 Select the required 9500B Trigger Channel Cable Select an...

Page 141: ...connected to the oscilloscope as shown in Figure 20 and that both instruments are powered on and warmed up 2 Select the required 9500B Trigger Channel Cable Select and Trigger Ratio settings 3 Select...

Page 142: ...mV 1 MHz Rising Calibration Procedure 25 ps Edge Speed Ensure that the 9500B is connected to the oscilloscope as shown in Figure 21 and that both instruments are powered on and warmed up Be sure to us...

Page 143: ...c Press the TRIGGER CHANNEL selection d Select the proper TRIGGER CH setting as connected with the external trigger cable select among CH1 to CH5 alternatives e Confirm the wording Trigger Cable is di...

Page 144: ...edge rise time value for later use in calibrating the head 16 Prepare to measure the 9550 s falling edge transition time by selecting the falling edge with the soft key On the 9500B confirm operation...

Page 145: ...n is due leave at default 30 days unless otherwise requested Modify the calibration due date default 1 year from calibration date 11 Select STORE Use the CHANNEL SELECT softkey to change to the approp...

Page 146: ...ives an on scale reading 6 Adjust the 9500B s output amplitude to give a reading equal to Target Amplitude on the measuring device The conversion from power to pk pk voltage is pk pk Voltage power 20...

Page 147: ...e recorded in Table 45 for use during the calibration and for future reference 1 Make connections as shown in Figure 23 2 9500B Ensure that the 9500B is in HEAD CAL Other Load Cap 3 The following proc...

Page 148: ...d Calibration Mode to make and note the result of four measurements Using the Mode key return the instrument to Manual Mode and select the DC Square Function 3 9500B Select DC Positive waveform at 5 0...

Page 149: ...r Turn the 9500B Output ON allow the DMM to settle and note the measurement in Table 46 Please note that the DMM reading average DC level should be multiplied by two pk pk level Having made the necess...

Page 150: ...period before recalibration is due Modify the cal due date Below the displayed dates is a message that reads These heads have unsaved data followed by a line that identifies the heads e g CH1 CH4 If t...

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