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1. 4205 MP8 MP13 EA 5820A Final Assembly Sheet 6 of 9 yu176f eps Figure 6 1 Final Assembly cont 6 6 13 5820A Service Manual GH WITHOUT SIGNAL MODUL SCALE 2 0 CABLE DIAGRAM FIVE CHANNE o o oO Lu o oO a as Lu a o gt BOTTOM VIEW COAX CONNECTIONS 5 CH TRIGGER CABLE 5800A 4403 TO FRONT PANEL OUTPUT BLOCK 5820A Final Assembly Sheet 7 of 9 yu177f eps Figure 6 1 Final Assembly cont 6 14 Replaceable Parts List of Replacement Parts Table 6 6 Single Channel With GHZ Option List of Replaceable Parts Reference Description Qty Fluke Stock Number Designator A54MP2 ADAPTER COAX SMA F SMA M SMA P 1 688710 TEE A54MP8 CABLE SMA RT TO RT 2 659968 A54MP13 A54W6 CABLE TRIGGER 5 CHANNEL 1 926009 A54W9 12 CABLE SMA ST TO RT 4 626017 A56MP9 AUX CABLE SMA RT RT 1 647104 A64MP51 CABLE GHZ OUT 1 661964 A99MP6 CABLE CURRENT LOOP 1 673092 6 5820A Service Manual WHT BLK GHZ Lol
2. A WHT BRN SEE SECTION A A SHEET J HHT BLU SEE DETAIL A BLY WHT BLU ATTACHMENT OF WIRES FROM TRANSFORMER LE CONNECTION SINGLE CHANNEL WITH Ss S 5 ES SHOWN CLEAR OF POWER SWITCH S a FORM WIRES AS lt L or lt L ES Lu m lt L Q TO GHZ IN o 5800A 4413 P51 5820A 44ll7 MODIFICATION OF ROUTING WIRES ON FILTER 5820A Final Assembly Sheet 8 of 9 yu178f eps Figure 6 1 Final Assembly cont 6 16 Replaceable Parts 6 List of Replacement Parts JINGOW TYN9IS A Err voss E mess o E FIVE CHANNEL WITH GHZ CABLE DIAGRAM JINGOW ZH9 5820 4417 o o E o Lu o o a Az Lu gt o o E BOTTOM VIEW COAX CONNECTIONS 5 CHANNEL TRIGGER CABLE 5800A 4403 IO J4 P4 P5 J5 TO FRONT PANEL OUTPUT BLOCK 5820A Final Assembly Sheet 9 of 9 yu179f eps Figure 6 1 Final Assembly cont 6 1
3. yh001f eps 5820A Service Manual 1 4 e External reference e Auxiliary input e 5 channel output 5 Channel Option The 5 Channel Option allows you to calibrate up to five oscilloscope channels simultaneously without changing cables e Simultaneous output of a signal and a trigger signal e 600 MHz Leveled Sine wave output e Optional 600 MHz 2 1 GHz Leveled Sine wave output with 150 ps fast edge e Standard IEEE 488 GPIB interface complying with ANSVIEEE Standards 488 1 1987 and 488 2 1987 e EIA Standard RS 232 C serial data interface for printing displaying or transferring internally stored calibration constants and for remote control of the 5820A e Pass through RS 232 C serial data interface for communicating with the Unit Under Test UUT e Extensive automatic internal self testing and diagnostics of analog and digital functions How to Contact Fluke USA and Canada 1 888 99 FLUKE 1 888 993 5853 Europe 31 402 675 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 446 5500 For additional information about Fluke its products and services visit Fluke s web site at www fluke com Instruction Manuals The 5820A Manual Set provides complete information for operators and service or maintenance technicians The set includes e 58204 Operators Manual PN 802154 e 5820A Service Manual PN 673142 The 5820A Operators Manual ships with th
4. IEEE ff _ sss w ss ESA O O O EST rsss ff ss remo po _ ss Cremoso ss EE ff _ s aam ff ss remo _ s isso ff ss isso _ es Fismoo ff CEA e Cremos ff DTSC ff _ eso isso ff aam _ 9 5820A Service Manual Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec Fm IE IS IO IE o EZ H _ w0 550 eso _ eo mom s am _ 8 1 rasgos G 8 aam s sd aam s raras ss s G _ ss 1 Tssrscoome zs sd Gew _ 0 mom 0 somo _ 0 Tseascoome 0 Gaw 0 DECO 55 0 Cosmo _ _ 55 01 Dose esmo _ 5501 ww 55 SS mom __ 0 Presses SS mom e aam SS Gawo S aam 55 room _ 55 0 Tssescoome Gaw _ 5 20 Options Verification Tables for Channels 2 5 Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec mom IS IS IS O IO IESO DECIA _ IAEA f DETECTO ue Crw us DECIA us DEC
5. acvh topline 130 1000 0 6501 aberration acvh baseline 130 1000 0 6501 aberration 5 29 5820A Service Manual Table 5 33 Edge Amplitude Measured Spec Channel Measurement aaa ELN Value Deviation EE CE topline 25 10 kHz 0 0145 aberration 5 22 Capacitance Table 5 34 Capacitance Channels 2 5 Measured Channel Measurement Value Value Deviation Cap F 5 30 Chapter 6 Replaceable Parts Title Page Gade Introduction dia 6 3 6 2 How to Obtain PartS oooconnnnnnnninnnnnnnconnconnonnnononoconoconoconncan nro ei 6 3 6 3 List of Replacement Parts ccann THERE aZe E T re 6 3 6 1 5820A Service Manual 6 2 6 1 6 2 Replaceable Parts 6 Introduction Introduction This chapter contains a list of replaceable parts for the Fluke 5820A Oscilloscope Calibrator Parts are listed by assembly and alphabetized by reference designator Each assembly is accompanied by and illustration showing the location of each part and it s reference designator The parts lists give the following information e Reference designator e An indication if the part is subject to damage by static discharge e Description e Fluke stock number e Total quantity e Any special notes 1 e factory selected part ACaution A symbol indicates a device that may be damaged by static discharge How to Obtain Parts Electrical components may be ordered directly from the manufacturer by using the manufacturers
6. 0 remo _ e isso ff s remos ff ess Como ff 0 eos ff 0 Domw DECI ff o o reses po www 50 9 5820A Service Manual Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec mom ff IS E IS E ETC rasgos o posso aam ff IEC Gaw _ T aam ff ss Tsarsoona00 ff _ 50 isso ff so isso ff _ 50 Fismoo ff 0 rm ff 0 Cremoso 2 remo ss isso ff po os ff po ss eos ff o po Dave esmo ff s0 essom ff _ fis mom o o EEE ff so Cremoso ss G w ff 50 Cremoso ff ss remo ff _ s Cremoso ff ss ITESO _ iso ssw ff ss isso ff _ ss Ts7eooon000 ff ss remo _ ss aam sso remo ff _ fis 5 16 Options 5 Verification Tables Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec mom ff e eos ff sso Dow DESTA _ T w o ss ww s esw ff so rasgos ff _ is aam ff ss EE ff 50 aam ff sso Gewn S _ 50 isso ff po ss isso ff o _ so IEC ff sm 0 RHH H H o SHH o 2 RHH
7. TO BE TORQUED 3 5 INCH LBS TO BE TORQUED 5 7 INCH LBS 2X aT I A US FRONT PANEL MODULE FRONT VIEW 5820A Final Assembly Sheet 1 of 9 Figure 6 1 Final Assembly 6 5 5820A Service Manual FRONT PANEL MODULE REAR VIEW gt ao G mn a La ao o SN Le o E a 5820A Final Assembly Sheet 2 of 9 yu173f eps Figure 6 1 Final Assembly cont 6 6 Table 6 3 Rear Panel Module List of Replaceable Parts Replaceable Parts List of Replacement Parts Reference Description Qty Fluke Stock Number Designator A65MP4 HANDLE INSTRUMENT GREY 7 2 886333 AG5MP5 A65MP8 AIR FILTER 1 945287 A65W20 FAN ASSEMBLY 1 843029 6 5820A Service Manual 6 8 REAR PANEL MODULE FROM TRANSFORMER ASSEMBLY WHT BLK 2x TO BE TORQUED 5 1 Ua REAR VIEW Figure 6 1 Final Assembly cont ion A A 2 0 5820A Final Assembly Sheet 3 of 9 yu174f eps Table 6 4 Chassis Module List of Replaceable Parts Replaceable Parts List of Replacement Parts Reference Description Qty Fluke Stock Number Designator A3A3 PCA MOTHER GHZ A03 1 662221 A11A101 PCA MANUAL A2 A6 A
8. YN A al Chapter 1 Introduction and Specifications Title Page Intro dU CM dirias 1 3 How to Contact Fluke eee 1 4 Instruction Manuals sees ee eee eee 1 4 5820A Operators Manual eee 1 4 S820A Service Malal ina dal 1 5 SPeCificatIONS asn K HR caian diia n LET eT Raa T 1 5 General Specihcaniong eee eee eee 1 7 Voltage Output Specihcationg sees ee eee 1 8 DC Volt Measure Specifications sese eee eee 1 8 Edge Specifications sese eee eee 1 9 Leveled Sine Wave Specifications 600 MHZ eee eee 1 10 Time Marker Specifications sese eee eee 1 10 Wave Generator Specifications see eee eee 1 11 1 ns Pulse Generator Specifications see eee eee 1 11 Trigger Signal Specifications Pulse Functions eee 1 11 Trigger Signal Specifications Time Marker Function 1 12 Trigger Signal Specifications Edge Function sese 1 12 Trigger Signal Specifications Square Wave Voltage Function 1 12 Trigger Signal Specifications TV 1 12 Tunnel Diode Drive Capability sss sese sees eee 1 12 Oscilloscope Input Resistance Measurement Specifications 1 12 Oscilloscope Input Capacitance Measurement Specifications 1 12 Overload Measurement Specifications sese ee 1 12 External Reference Input Specifications sese eee eee eee 1 12 Auxiliary Input Output Specifications 20 0 0 eceeeeseeeeeeetecneeeeeeeees 1 13 Current Output Specifications sees eee eee 1 13 5820A Service Manual 1 2 Introduction
9. de and ac signals that are amplified or attenuated to provide the complete range of output voltage signals Output trigger capability is available with the ac voltage signal Edge Mode The edge clock originates on A55 and is used on A90 to generate the lt 300 ps edge signal The edge signal is passed through the attenuator section of A90 and then like all of the signals is passed to the front panel high frequency switch Output trigger capability is available with this signal Leveled Sine Wave Mode Leveled sine wave signals from 50 kHz to 600 MHz are produced on A55 The leveled sine wave signal is passed from A55 to the A90 The A90 provides range attenuation and also contains a power detector that maintains the amplitude flatness across the frequency range The signal is then passed to the front panel high frequency switch Output trigger capability is not available with this signal Time Marker Mode There are 4 primary ranges of time marker operation 5 s to 50 ms 20 ms to 2 us 1 us to 20 ns and 10 ns to 2 ns 2 7 5820A Service Manual 2 8 2 10 The 5 s to 50 ms markers are generated on A6 and are passed to A55 for filtering and shaping The 20 ms to 2 Us markers are derived from a square wave signal that is generated on A55 and passed through wave shaping and external trigger generation The 1 us to 20 ns periods are derived from leveled sine or square wave signals The 10 ns to 2 ns sine markers are gene
10. 0001 001 1000 0 0000055 0000055 acvh topline 0 001 1000 0 000105 aberration acvh baseline 0 001 1000 0 000105 ae EN ES 001 1 cc EE 0000425 acvh amplitude 0 001 001 1000 0 0000055 0000055 acvh topline 0 001 1000 0 000105 aberration acvh baseline 0 001 1000 0 000105 EDS e e E s E 32504 acvh amplitude 130 1000 0 065005 065005 acvh topline 130 1000 0 6501 aberration acvh baseline 1000 0 6501 il e a E Ea 32504 acvh amplitude 180 1000 0 065005 065005 acvh topline 130 1000 0 6501 aberration acvh baseline 130 1000 0 6501 aberration Table 5 21 Edge Amplitude Measured Spec Channel Measurement E Ea Value Deviation ae p edge topline aberr 2 Em 10 note EN 0145 15 ns 5 26 Options Verification Tables for Channels 2 5 5 19 Channel 3 DMM Input Table 5 22 Levsine Amplitude Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p Table 5 23 DC Voltage 1 MQ Measured Channel Amplitude Value Deviation Spec V O T o fom fom IO IO LT s fom oo 00225 E dm o O as ERC jao o Table 5 24 AC Voltage 1 MO Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p 5 ash of 001 o H 000 e rom amme foor fo f fos acvh topline 0 001 1000 0 000105 aberration acvh baseline 0 001 1000 0 000105 aberration oo oo 000425 e IET ooo o ass
11. HP 8592L must be used gt 600MHz BNC F to Type N M Adapter yu081f eps Figure 5 7 Setup for Leveled Sine Wave Harmonics Verification Set the Calibrator Mainframe to the Levsine menu Follow these steps to verify the leveled sine wave harmonics 1 Using the N to BNC cable and BNC f to Type N m adapter connect the CHAN 1 connector on the Calibrator Mainframe to the HP 8592L Options 5 Verification Tables 2 Program the Calibrator Mainframe to 3 5 V p p at each frequency listed in Table 5 6 Press ay on the Calibrator Mainframe to activate the output 3 Set HP 8592L start frequency to the Calibrator Mainframe output frequency Set HP 8592L stop frequency to 10 times the Calibrator Mainframe output frequency Set the HP 8592L reference level at 19 dBm 4 Record the harmonic level reading for each frequency and harmonic listed in Table 5 6 For harmonics 3 4 and 5 record the highest harmonic level of the three measured Harmonics should be below the levels listed in the Deviation column of Table 5 6 5 12 Verification Tables Table 5 4 through Table 5 7 are to be used to verify channels 2 5 The verification test points are provided here as a guide when verification to one year specifications is desired For more information on verification see Chapter 3 Table 5 4 GHz Leveled Sine Wave Frequency Verification Channels 1 2 and 5 Calibrator Mainframe PM 6680 PM 6680 Tolerance Frequency S
12. s5 590000000 oz 2 tovsine fatness 85 00000000 oz NIN ML MLM MIM PM MI MI NIN N 5 21 5820A Service Manual Table 5 9 Leveled Sine Flatness 5 5 V Channel 3 Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p esne fatness os 1000000 og 5 ewe remes 55 10000000 om ra evene remes 55 soooo000 ooa ears fatness 55 70000000 oos eare fatness 855 20000000 omo ears fatness 5 200000000 foros ears fatness 85 Tamal ors ears fatness 55 Tamal oras Fievsine fatness 55 somo ors Fievsne fatness 85 2000000 oras ears fatness 55 s7o000000 __ oar ears fatness 5 Tamal ome ears fatness 55 Tamal oa ears fatness 55 Tamal _ o2a0r Table 5 10 Leveled Sine Flatness 5 5 V Channel 4 Measured Channel Measurement Amplitude Frequency Value Deviation Vp p CG lG l o TI BI I RP RT RIT A D o A 5 22 Options Verification Tables for Channels 2 5 Table 5 11 Leveled Sine Flatness 5 5 V Channel 5 Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p COC ss Tio _ Tos ee ass Lss mono __ Tae COCO E Tas CONC Lss Tm __ Tae CONC CI A form CONC CI A A CONC EIN COCO CI A forma COC 65 Ta O CN COCO 66 Ta A forms esne tanes lss Tooo Tozo COCO 55 Tooo A oao COC 55 Tae oao CONC ss am A o
13. 3 19 High Frequency Calibration ss sees eee eee 3 20 Pulse Width Calibration sss eee eee 3 21 MeasZ Calibration scos nanpi eane raataa T RAEE eT 3 22 Leveled Sine Wave Flatness Calibration GHz Option E LA OPON acord 3 24 Verification TTT 3 25 DC Voltage Verhcanion sees eee 3 26 Verification atl MO toi iia actas 3 27 Verification at 50 LZ 3 28 AC Voltage Amplitude Verification serenas 3 29 Verification at 1 MO ecserin nanti aa iae 3 30 Verification 1 S ds 3 31 AC Voltage Frequency Verification eee 3 32 DC Measurement Verification eee 3 33 Current MerificatION sarto nariak anna an TA aeos 3 34 DC Current Verification ee eee ee 3 35 AC Current VY en canion see eee eee 3 36 Edge Amplitude Verification sese sese eee 3 37 Edge Frequency Verification ccccccccecssecsseessceseceeeceeeceeeeeeeeeseeeeaes 3 38 Edge Duty Cycle Verification sss sese eee 3 39 Edge Rise Time Verification sese eee 3 40 Edge Aberrations sss eee eee Contents continued 3 41 Tunnel Diode Pulser Drive Amplitude Verification 3 35 3 42 Leveled Sine Wave Amplitude Verification sees sese eee 3 35 3 43 MHz Leveled Sine Wave Flatness Verification sse eee eee 3 36 3 44 Equipment Setup for Low Frequency Flatness 3 36 3 45 Equipment Setup for High Frequency Flatness 3 37 3 46 Low Frequency Verification sese eee eee 3 37
14. the rising trigger edge against the rising pulse Press amp gy on the Calibrator to activate the output Press the soft key under SKEW Auto set the DSO Then set the DSO to these starting values Main Time Base position initial 2 ns div Vertical scale channel 1 Pulse 200 mV div Vertical scale channel 2 Ext Trig 100 mV div Trigger source ext level 200 mV ext atten x1 slope mode auto Measurement Function none 1 Set skew 0 0 ns Verify the skew between the 30 level of the trigger and pulse edge is less than 500 ps 2 Use the values in the Table 3 27 to verify the skew specification Change the horizontal scale of the DSO as needed Record the skew measurement made and compare to the tolerance column of Table 3 27 Continue through the values in the table recording results Calibration and Verification 3 Verification Table 3 27 Pulse Skew Pulse Measured a 68 pos meen oe van rea SS for amo Amp Value 3 57 Pulse Period Verification This procedure uses the following equipment e PM 6680 Frequency Counter with an ovenized timebase Option PM 9690 or PM 9691 e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Pulse menu Press on the Calibrator Mainframe to activate the output Then follow these steps to verify the Pulse period 1 Set the PM 6680 s FUNCTION to measure period on channel A with auto trigger DC couple 50 2 impedance and fi
15. 10 1000 0 250500 3 36 Edge Amplitude Verification For the edge amplitude verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable supplied with the Calibrator Mainframe the external 50 Q termination and the BNC f to double banana adapter The 50 Q termination is closest to the HP 3458A input 1 For measurements of a 1 kHz signal set the HP 3458A to DCV NPLC 01 LEVEL 1 TRIG LEVEL and the DELAY to 0002 for measuring the upper part of the wave form i e topline and the DELAY to 0007 for measuring the lower part of the wave form i e baseline For measurements of a 10 kHz signal set the HP 3458A to DCV NPLC 001 LEVEL 1 TRIG LEVEL and the DELAY to 00002 for measuring the topline and the DELAY to 00007 for measuring the baseline Manually lock the HP 3458A to the range that gives the most resolution for the baseline measurements Use this same range for the corresponding baseline measurements at each step Note that in the EDGE function the topline is very near 0 V and the baseline is a negative voltage See Table 3 14 For each calibration step take samples for at least two seconds using the HP 3458A MATH functions to enter the average or mean value The peak to peak value of the wave form is the difference between the topline and baseline measurements correcting for the load resistance error To make this correction multiply the readings by 0 5 50
16. 2 4 2 2 Block Diagram of Scope Module sese 2 5 2 3 Signal Diagram of Scope Module sss 2 6 3 1 Setup for Scope Calibrator Voltage Square Wave Measurements 3 8 3 2 Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements 3 9 3 3 Connecting the Calibrator Mainframe to the 5790A AC Measurement Standard 3 14 3 4 Setup for MeasZ Calibration sss sees eee eee 3 17 3 5 Setup for AC Voltage Frequency Verification sees eee 3 26 3 6 Setup for Edge Rise Time Verification sss esse eee eee 3 32 3 7 Setup for Leveled Sine Wave Harmonics Verification sees eee eee ee 3 47 3 8 Setup for Wave Generator Function ccoo nono nono noc nn cnn rnnnrnnn nana 3 50 3 9 Setup for Overload Function VYennca ion sss sees eee eee 3 58 3 10 Adjusting the Leveled Sine Wave Balance sss see 3 60 3 11 Adjusting the Leveled Sine Wave Harmonics sss sees eee eee 3 61 3 12 Adjusting Short Term Edge sss 3 63 4 1 Accessing the Fusce 4 4 4 2 Accessing the Arr Ple TTT 4 5 S k GHz Block Diagrams iio ii A idad 5 6 5 2 Fast Edge Full Wave Form sese 5 7 O 210 66 A EN 5 8 5 4 a B ller On the Porche left ess 5 8 5 5 Critically Triggered Edge at Porch Height Level L 5 9 5 6 Critically Distorted Edge at Porch Height Level IL 5 9 5 7 Setup for Leveled Sine Wave Harmonics Verification 5 10 O A E 6 5 vii 5820A Service Manual vili Ea ml pl ld ld pl md pl do pd bd pd pl do pd o pl o pd o pd pd do do Al
17. 21 5 24 5 14 Edge Rise Time Channel 31 5 24 5 15 Edge Rise Time Channel 4 ccescscsscssssssrecessesssesssecsaecascnseesseesseeseeesenesenesenes 5 24 5 16 Edge Rise Time Channel S 5 24 5 17 PUSE SA A ir 5 25 JS LSYSIME Amplitude ic AA A Ads 5 25 3219 DC Voltage LS rl io ia 5 25 3 20 AG Voltage DMO iia E A ea A RAE 5 26 5 21 Edge Amplitude a a ia Sai Ss dea ai ds 5 26 3 22 evsine Amplitude econ 5 27 3 23 DEV ota MO ala id 5 27 5 24 AG Voltage DMO a A A EE RE na pecas 5 27 5 25 Edge Amplitude 0 A Aia 5 27 3 20 Levsine Amplitudes it AAA AA Ad is 5 28 5 27 DEV ola 0 ii dd 5 28 5 28 AC Voltage 5002 E A A gab Saad da 5 28 3 29 Edge Amplitude snesena E E 5 29 3 30 Leysine Amplitude eiii dis 5 29 3 DC Voltage Mave i o ida 5 29 5232 5 NG Voltage PMO ad ti it lia dea 5 29 5 33 Edge lei Te 5 30 5 34 Capacitance Channels D 5 30 6 1 15820A Manuals micno ara ias 6 4 6 2 Front Panel Module List of User Replaceable Parts sss 6 4 6 3 Rear Panel Module List of Replaceable Parts sese 6 7 6 4 Chassis Module List of Replaceable Parts sss 6 9 6 5 Single Channel Without GHz Option List of Replaceable Parts 6 12 6 6 Single Channel With GHZ Option List of Replaceable Parts 6 15 vi List of Figures Figure Title Page 1 1 5820A Multi Product Calibrator sss sese eee eee 1 3 1 2 5820A Calibrator Dimensional Outline sss sees eee eee 1 6 2 1 Signal Diagram of Chassis see
18. 27 5820A Service Manual 3 35 AC Current VY en canion see eee eee 3 28 3 36 Edge Amplitude Verification sese 3 30 3 37 Edge Frequency Verification ccccccecssecsseeseceseceeeceeeeeeeeeeeeeeeeenaes 3 31 3 38 Edge Duty Cycle Verification sss sese eee 3 32 3 39 Edge Rise Time Verification sese eee 3 32 3 40 Edge Aberrations sss eee eee 3 34 3 41 Tunnel Diode Pulser Drive Amplitude Verification 3 35 3 42 Leveled Sine Wave Amplitude Verification sees sese eee 3 35 3 43 MHz Leveled Sine Wave Flatness Verification sse eee eee 3 36 3 44 Equipment Setup for Low Frequency Flatness 3 36 3 45 Equipment Setup for High Frequency Flatness 3 37 3 46 Low Frequency Verification sees eee eee 3 37 3 47 High Frequency VY enncanion sss eee eee eee 3 42 3 48 lt 600 MHz Leveled Sine Harmonic Verification 3 52 3 49 Time Marker Verification cccccccecsseesseesceesteeseceeceeeceeeeseneenneeenes 3 53 3 50 Wave Generator Verification sese eee 3 55 3 51 Verification at 1 MG 3 55 3 52 Verification at 50 LZ 3 57 3 53 Pulse Width Verification sees eee 3 58 3 54 Pulse Skew Calibration and VYernhcanion sees eee 3 59 3 55 Calibration A RN 3 60 3 56 Verification sireni aeia nono nono aA aa r rara ran 3 60 3 57 Pulse Period Verification cccccecscecsseeseeseeseceeeceeeeseeeseeeeeeeeeneenses 3 61 3 58 MeasZ Resistance Ve
19. 4 3 4 2 Replacing the Line Fuse ooooonccnnonoonnoonnconocononononnnconaconon EE E non noo 4 3 4 3 Cleaning the Arr Filters T 4 4 4 4 General Clone cin aii 4 6 4 5 Service Information eisini ie innata aora ibi 4 6 4 6 O IN 4 6 4 7 Cables 220s ick ue eel eae E E RN 4 6 4 8 Channel Select Switches 4 6 4 9 Clock Frequency tc tds 4 6 4 10 50 Q Resistance Measurement cccccccssssscscscsescscsesescssseseseseseeees 4 7 Opinas 5 1 Seda Ito du T 5 3 5 2 5820A S Option AAA AA A Aia ines 5 3 5 3 GHz Module tc da 5 3 5 4 GHz Option Specifications eee 5 3 5 5 Fast Edge Specifications cccccccssecssecsteceteceseceseceeecseeeseeeseeeseneeeaes 5 3 5 6 Leveled Sine Wave gt 600 MHz Specifications sees eee eee 5 4 5 7 Time Marker Specifications sese eee eee 5 5 5 8 Theory of Operation reserse eree EET ELE 5 5 5 9 Fast Edge Adjustment for the GHz Module esse 5 6 5 10 GHz Leveled Sine Wave Frequency Verification sese eee eee 5 9 5 11 GHz Leveled Sine Wave Harmonics Verification 5 10 iii 5820A Service Manual Index 5 12 Verification Tables sse eee 5 11 5 13 Verification Tables for Channels 2 5 eee 5 21 5 14 Leveled Sine Flatness lt 600 MHZ see eee 5 21 5 15 Pulse Width a iia 5 23 5 16 Edge Rise Time Verification Channels 27 51 5 24 5 17 NA ENE 5 25 5 18 Channel 2 DMM Input sss sese eee ee eee 5 25 5 19 Channel 3 DMM Input sese eee eee ee eee 5 27 5 20 Channel 4 DMM Input ss
20. Assumes connectors and cables are in good condition 1 9 DC Volt Measure Specifications A Caution Input voltages exceeding 30 VDC may cause damage to the instrument Voltage Range Voltage Accuracy 0 to 5 99 V 0 05 1 mV DCV 10 V maximum with 1 mV resolution 6 to 10 V 0 25 10 mV gt 1 MQ input impedance measure voltage across 1 MO input resistor 1 8 Introduction and Specifications 1 Specifications 1 10 Edge Specifications Note The GHz Option offers a Fast Edge function The specifications for the Fast Edge function can be found in Chapter 8 of the 58204 Operators Manual Edge Characteristics into 50 0 load 1 Year Absolute Uncertainty tcal 5 C Rise Time S300pS 20 100 ps Amplitude Range p p 4 0 mV to2 5V 2 of output 200 uV Adjustment Range E around each sequence value a 5 mV 10 mV 25 mV 50 mV 60 mV 80 mV Sequence Values 100 mV 200 mV 250 mV 300 mV 500 mV 600 mV 1 V 2 5 V Frequency Range 1 kHz to 10 MHz 0 33 ppm of setting C within 2 ns from 50 of rising edge Leading Edge Aberrations IN EE TE HT 0 5 MOF OUTPUT 2 mV 45 to 55 1 Frequency range above 2 MHz has rise time specification 350 ps typical 2 The leading edge aberrations below 250 mV are typical All readings are referenced to a Tek11801 with an SD26 module or a Tek820 oscilloscope with an 8 GHz bandwidth option 1 9 5820A Service Manual 1 11 Leveled Sine Wave Speci
21. Compare to the tolerance column of Table 3 9 Table 3 9 AC Voltage Frequency Verification Calibrator Mainframe PM 6680 Reading Frequency Frequency Tolerance Output O 2 1 V p p q y 3 32 DC Measurement Verification This procedure uses the following equipment e Fluke 5520A Calibrator 1 Select Voltage Measurement mode 3 26 Calibration and Verification 3 Verification 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the Fluke 5520A Calibrator voltage binding posts using a BNC to banana connector Record the 5820A reading for each voltage in Table 3 10 Table 3 10 DC Voltage Measurement Verification Nominal Value 1 year Spec Measured Value Deviation V dc V p p Do Too o sm Du o me De o o A o o o 0 00225 0 0035 0 02625 0 03475 3 33 Current Verification This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter with cable e 1 Q 10 Q 100 Q and 1000 Q precision resistor assemblies Remove the front panel Current Loop using the 2 mm hex head driver 3 34 DC Current Verification 1 Connect the DMM directly to the vacant banana jacks on the calibrator 2 Program the Calibrator Mainframe to output the Currents listed in Table 3 11 Press on the Calibrator Mainframe to activate the output 3 Allow the HP 3458A reading to stabilize then record the HP 3458A reading for each current in Table 3 11 4 Compa
22. Generator Mode sese 2 7 MNAC erererereeeaeeeaceracarecarnerenareneraneranos 2 8 Input DC Voltage Measurement Mode sss sese eee 2 9 Input Impedance Mode Resistance sss sese 2 10 Input Impedance Mode Capacianc l sss sese eee 2 11 Current Module sese 2 12 A inean orta a nen E E ETA EARE 2 13 NN 2 14 High Frequency Switching sse eee eee eee 2 15 5 Channel Opo sese eee 2 16 GHz Option Module TT 3 Calibration and Verification cccccessseccceeeeeeeeeseeeeeeeesseeeeeeeseeneeeeeeeees Beds A O OO 3 2 Equipment Required for Calibration and Verification 3 33 Calibration Setups asi es Tania sda NUAS Cgi naar caida 3 4 Calibration and Verification of Square Wave Voltage Functions 3 5 Overview of HP3458A Operation eee 3 6 Setup for Scope Calibrator Voltage Square Wave Measurements 3 7 Setup for Scope Calibrator Edge and Wave Gen Square Wave MERC ce CEE EEE EErEE E EEEO EER iE 3 8 DC Voltage Calibration enian ienna a a a 3 9 AC Voltage Calibration sees eee 3 10 DC Measurement Calibration sss eee eee eee 3 11 Current Calibration mica daa nts 3 12 DC Current Calibration miosina dario dale 3 13 AC Current Calibrations ienser a E 3 14 Wave Generator Calibration sees eee eee 3 15 Edge Amplitude Calibration sse eee eee 3 16 Leveled Sine Wave Amplitude Calibration sss sees eee 3 17 Leveled Sine Wave Flatness Calibration sese eee eee 3 18 Low Frequency Calibration sees
23. H H H s0 HHH _ H HHH sso Dow esmo ss essom _ s EM esr SE ff 2 RHH es RHH po _ H RHH o H H H RHH H _ H RHH H H H H SHH o _ fio 5 17 5820A Service Manual Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec isso gt gt Y less 16500000 se imo fT tet EC e O ES isso fT tet t9750000 Tora aos Tt ter 200000 te eve 1 seso Tila O Lm 1 ess soco Tila LSR TR 1200000 R isso TR 18750 R tes TR tere R 15250000 pp aa 15750000 ss tes tet 17500000 we SH HH E A RS gt A 19250000 To tt isso Tee zos o te eos tt ten esve J oo o pop esmo 1 es remo Jams somo ees tt2500000 o To faso 5 18 Options Verification Tables Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec mom remo _ _ s remos ff T remo _ s Cremoso ff o ss isso ff _ ss isso ff isso _ ss izango ff remo o isso ff remo _ 5 DETECTO ff eos ff _ sa es
24. O 0 10 MA 1k O 1 099 mA 100 O 1 099 mA 100 Q 1 099 mA 100 O 1 099 mA 100 Q 1 099 mA 100 Q 1 099 mA Q 100 Q 1 10 MA 100 O 0 000750 0 000750 0 000750 0 003248 0 003248 0 003248 0 003248 0 003248 0 003248 0 003250 A B C e R ES EEE EA EA a E T Le Et AAA E E gt 1 od E LC L ES L EA EA Es al A ns pea es E omara ls ouso tiomae ion 80 Tass ssomae soon so L A fed al Eos E a IVAR PANA La E FE o L I H Eq ESSES ESE L L L I A EE o E AE AE A ESE Ed EE SE El 1 10 mA 100 Q 1000 1 10 mA 100 Q 1000 0 003250 0 003250 0 003250 10 99 mA 10 0 0 027975 10 99 mA O 10 Q9 10 99 mA 100 10 99 mA O 10 Q9 10 99 mMA 100 1000 10 99 mA O 10 Q9 1000 0 027975 0 027975 0 027975 0 027975 0 027975 11 00 mA O 100 0 028000 11 00 mA O 102 0 028000 11 00 mA O 102 0 028000 11 00 mA O 10 O 11 00 mMA 102 1000 50 00 mA 1 0 0 028000 0 028000 0 125500 3 29 5820A Service Manual 3 30 Table 3 13 AC Current Verification cont Nominal Output Frequency Actual Topline Baseline Calculated Tolerance Current O Reading Reading Current Resistance Value 50 00 mA O 1 Q 50 00 mA O 1 Q 50 00 mA O 12 0 125500 0 125500 0 125500 50 00 mA O 1 Q 1000 0 125500 50 00 mA O 1 Q 0 125500 100 mA O 10 0 250500 100 mA O 10 0 250500 100 mA O 10 0 250500 100 mA O 10 0 250500 100 mA O 10 0 250500 100 mA O
25. ONC O DELAY topline DELAY baseline Com om 00002 00007 s Calibration and Verification 3 DC Voltage Calibration HP 3458A 5820A Cable 50 Q Feedthrough Termination BNC F to Double Banana Adapter yu055f eps Figure 3 2 Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements For all measurements the HP 3458A is in DCV manual ranging with level triggering enabled A convenient method to make these measurements from the HP 3458A s front panel is to program these settings into several of the user defined keys on its front panel For example to make topline measurements at 1 kHz you would set the DMM to NPLC 01 LEVEL 1 DELAY 0002 TRIG LEVEL To find the average of multiple readings you can program one of the keys to MATH OFF MATH STAT and then use the RMATH MEAN function to recall the average or mean value DC Voltage Calibration This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC f to Double Banana adapter e N to BNC cable supplied with the Scope Calibrator Note Calibrating dc voltage requires ac voltage calibration Note When dc voltage calibration is started the calibrator uses a special configuration of WAVEGEN mode with a zero frequency ordinarily undefined to source approximately 3 Vdc After the operator enters the true dc value this value is then transferred to the internal DACs and A D through
26. OR LOSSES INCLUDING LOSS OF DATA WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT TORT RELIANCE OR ANY OTHER THEORY Since some countries or states do not allow limitation of the term of an implied warranty or exclusion or limitation of incidental or consequential damages the limitations and exclusions of this warranty may not apply to every buyer If any provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction such holding will not affect the validity or enforceability of any other provision Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 98206 9090 5602 BD Eindhoven U S A The Netherlands 5 94 Safety Information This Calibrator complies with IEC publication 1010 1 1992 1 Safety Requirements for Electrical Measuring Control and Laboratory Equipment and ANSI ISA S82 01 1994 and CAN CSA C22 2 No 1010 1 92 This manual contains information warnings and cautions that must be followed to ensure safe operation and to maintain the Calibrator in a safe condition Use of this Calibrator in a manner not specified herein may impair the protection provided by the Calibrator This Calibrator is designed for IEC 1010 1 Installation Category Il use It is not designed for connection to circuits rated over 4800 VA Warning statements identify conditions or practices that could result in personal injury or loss of life Caution statements identify conditions
27. Table 3 21 High Frequency Flatness Verification cont Calibrator Mainframe Flatness Spec eom H E H H H RES ome an i II DEC O O O E Es Complete Columns A G as follows Enter the 437B present frequency Reading W Enter the 437B 10 MHz Reading W Apply power sensor correction factor for present deta W CF Column A entry Apply power sensor correction factor for 10 MHz W CF Column B entry Compute and enter Error relative to10 MHz 100 SEO C Column D entry 1 Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example T m D OW gt 9 Compute and enter the calibration mainframe flatness deviation Column E Column F 3 46 Calibration and Verification 3 Verification Table 3 21 High Frequency Flatness Verification cont Calibrator Calibrator i Mainframe Freq Flatness MHz ce o 100 MHz Complete Columns A G as follows A Enter the 437B present frequency Reading W B Enter the 437B 10 MHz Reading W C Apply power sensor Correction factor for present deta W CF Column A entry D Apply power sensor correction factor for 10 MHz W CF Column B entry E Compute and enter Error relative to10 MHz 100 SEO C Column D entry 1 F Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example G Compute and enter the calibration mainfra
28. This calibration procedure uses the same equipment as in the 5820A Leveled Sine Wave Flatness High Frequency calibration procedure See the GHz section for details 3 23 5820A 5 Option The 5820A 5 Option allows you to calibrate up to five oscilloscope channels simultaneously without changing cables This allows you to perform fast automated calibrations with documented procedures and results while freeing the operator to complete other work You can find this option discussed throughout the manual where appropriate Note If the 58204 is equipped with the 5 channel option the Mainframe will indicate when to move to the next channel 3 24 Verification All of the Oscilloscope Calibration functions should be verified at least once per year or each time the Scope Calibrator is calibrated The verification procedures in this section provide traceable results however the factory uses different procedures of higher precision than those described here The procedures in this manual have been developed to provide users the ability to verify the Scope Calibrator at their own site if they are required to do so Fluke strongly recommends that if possible you return your unit to Fluke for calibration and verification All equipment specified for Scope Calibrator verification must be calibrated certified traceable if traceability is to be maintained and operating within their normal specified operating environment It is also important to ensu
29. a series of internal calibration steps On firmware version 1 5 and earlier the output displayed is 6 V pp 0 00 Hz at this step This is a side effect of the special configuration used As of firmware version 1 6 the output display indicates 3 V 0 00 Hz Set the Calibrator to Cal DCV by pressing the SETUP CAL and 5820A CAL blue softkeys then follow these steps to calibrate dc voltage 3 9 5820A Service Manual 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana adapter 2 Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on Press the GO ON blue softkey 4 Ensure the HP 3458A reading is 0 0 V dc 10 uV If not adjust R121 on A41 see Hardware Adjustments in this chapter Press the GO ON blue softkey 6 Calibration voltages 33 V and greater will automatically put the Calibrator Mainframe output in standby When this occurs press sfsy on the Calibrator Mainframe to activate the output Allow the HP 3458A dc voltage reading to stabilize Enter the reading via the Calibrator Mainframe front panel keypad then press ENTER Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the reading insuring proper multiplier i e m 4 n p If the warning still occurs repair may be necessary 7 Repeat steps 6 until the Calibrator M
30. display 3 67 5820A Service Manual 3 68 3 69 Adjusting the Edge Aberrations Refer to Figure 3 12 while making the following adjustments 1 10 11 12 Adjust A90R13 to set the edge signal at the right edge of oscilloscope display at 10 ns to the reference level set above Adjust A90R36 so the first overshoot is the same amplitude as the next highest aberration Adjust A90R35 so that the second and third overshoot aberrations are the same amplitude as the first aberration Adjust A90R12 to set the edge signal occurring between 2 ns and 10 ns to the reference level set above Readjust A90R36 and A90R35 to obtain equal amplitudes for the first second and third aberrations Adjust A90R13 to set the edge signal occurring between 0 ns and 2 ns to the reference point set above Center any aberrations so the peaks are equal above and below the reference level Readjust A90R12 if necessary to keep the edge signal occurring between 2 ns and 10 ns at the reference level Readjust A90R 13 if necessary to keep the edge signal occurring between 0 ns and 2 ns at the reference level Set the UUT output to 250 mV and the oscilloscope vertical to 2 mV div Check the aberrations Connect the 10 dB attenuator to the oscilloscope input Connect the UUT to the attenuator and program the UUT output to 2 5 V Set the oscilloscope vertical to 5 mV div Check the aberrations Check for rise time lt 300 ps at 250 mV 1 V a
31. display indicates that the next steps calibrate Leveled Sine flatness Press the STORE CONSTS blue softkey to store the new calibration constants Gen SS S JE E a BE yu034f eps Figure 3 3 Connecting the Calibrator Mainframe to the 5790A AC Measurement Standard 3 17 Leveled Sine Wave Flatness Calibration Leveled Sine Wave flatness calibration is divided into two frequency bands 50 kHz to 10 MHz low frequency and gt 10 MHz to 600 MHz high frequency The equipment setups are different for each band Flatness calibration of the low frequency band is made relative to 50 kHz Flatness calibration of the high frequency band is made relative to 10 MHz Leveled Sine Wave flatness is calibrated at multiple amplitudes Both low and high frequency bands are calibrated at each amplitude Calibration begins with the low frequency band then the high frequency band for the first amplitude followed by the low frequency band then the high frequency band for the second amplitude and so on until the flatness calibration is complete Press the NEXT SECTION blue softkey until the display reads Set up to measure leveled sine flatness 3 18 Low Frequency Calibration Connect the Calibrator Main
32. example T m D OW gt 9 Compute and enter the calibration mainframe flatness deviation Column E Column F 3 49 5820A Service Manual Table 3 21 High Frequency Flatness Verification cont Calibrator Mainframe Flatness mom TITS som acom po aa LAA H EH Complete Columns A G as follows A Enter the 437B present frequency Reading W B Enter the 437B 10 MHz Reading W C Apply power sensor correction factor for present frequency W CE Column A entry D Apply power sensor correction factor for 10 MHz W CF Column B entry E Compute and enter Error relative to10 MHz 100 sqrt Column C Column D entry 1 F Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example G Compute and enter the calibration mainframe flatness deviation Column E Column F 3 50 Calibration and Verification 3 Verification Table 3 21 High Frequency Flatness Verification cont Calibrator Calibrator i Mainframe Freq Flatness MHz Spec a 100 MHz ER Man See IE ES ome f J TT py 250 MHz Complete Columns A G as follows Enter the 437B present frequency Reading W Enter the 437B 10 MHz Reading W Apply power sensor correction factor for present ae W CF Column A entry Apply power sensor correction factor for 10 MHz W CF Column B entry Compute and enter Error relativ
33. f to Double Banana adapter e 50 Q feedthrough termination e N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Volt menu Follow these steps to verify the wave generator function Verification at 1 MQ For the 1 MQ verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable and the BNC f to Double Banana adapter Make sure the Calibrator Mainframe impedance is set to 1 MQ The blue softkey under Output toggles the impedance between 50 Q and 1 MQ 1 Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on 2 Program the Calibrator Mainframe to output the voltage listed in Table 3 5 Press on the Calibrator Mainframe to activate the output 3 Allow the HP 3458A reading to stabilize then record the HP 3458A reading for each voltage in Table 3 5 4 Compare result to the tolerance column Verification at 50 2 For the 50 Q verification connect the CHAN 1 connector to the HP 3458A input using the cable and the 50 Q termination connected to the N to BNC to Banana Plug adapter Make sure the Calibrator Mainframe impedance is set to 50 Q The blue softkey under Output toggles the impedance between 50 Q and 1 MQ 1 Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on 2 Program the Calibrator Mainframe to output the voltage listed in Table 3 6 Press on the Calibrator Mainframe to activate the output 3 Allow the HP 3458A rea
34. for importation costs of repair replacement parts when product purchased in one country is submitted for repair in another country Fluke s warranty obligation is limited at Fluke s option to refund of the purchase price free of charge repair or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period To obtain warranty service contact your nearest Fluke authorized service center or send the product with a description of the difficulty postage and insurance prepaid FOB Destination to the nearest Fluke authorized service center Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines that the failure was caused by misuse alteration accident or abnormal condition of operation or handling Fluke will provide an estimate of repair costs and obtain authorization before commencing the work Following repair the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges FOB Shipping Point THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES
35. for the proper equipment connections SOURCE MEASURE EXTTRIG CHAN 1 BNC F to Double Banana Feed Through Adapter Termination yu060f eps Figure 3 8 Setup for Wave Generator Function Set the Calibrator Mainframe to the Wavegen menu Press on the Calibrator Mainframe to activate the output Set the offset to 0 mV anid th the frequency to 1 kHz Then follow these steps to verify the wave generator function 3 51 Verification at 1 MQ Set the Calibrator Mainframe impedance to 1 MQ The blue softkey under SCOPE Z toggles the impedance between 50 Q and 1 MO 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end ofthe N to BNC cable to the 5790A INPUT 2 using the BNC f to Double Banana adapter 2 Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on 3 Program the Calibrator Mainframe to output the wave type and voltage listed in Table 3 24 4 Allow the 5790A reading to stabilize then record the 5790A rms reading for each wave type and voltage in Table 3 24 5 Multiply the rms reading by the conversion factor listed to convert it to the peak to peak value Compare result to the tolerance column 3 55 5820A Service Manual Table 3 24 Wave Generator Verification at 1 MQ Calibrator calibrator 5790A 5790A Reading x Mainframe f Conversion Tolerance Mainframe Reading Conversion Factor Wave Type Output V rms Fa
36. frame a b Squeeze the edges of the frame towards each other to disengage the filter tabs from the slots in the calibrator Pull the filter frame straight out from the calibrator C 3 Clean the filter element Wash the filter element in soapy water a b Rinse the filter element thoroughly Shake out the excess water then allow the filter element to dry thoroughly before reinstalling it C 4 Reinstall the filter element by performing the filter removal steps in reverse order Y 7 E NI ES ANIVET EVAT TIPUD EVIE gag EI Degg alg ZAR DDD DUDO ND FID TODD BE Y aag062f eps Figure 4 2 Accessing the Air Filter 4 5 5820A Service Manual 4 6 4 4 4 5 4 6 General Cleaning For general cleaning wipe the case front panel keys and lens using a soft cloth slightly dampened with water or a non abrasive mild cleaning solution that does not harm plastics ACaution To prevent damage do not use aromatic hydrocarbons or chlorinated solvents for cleaning They can damage the plastic materials used in the calibrator Service Information The warranty for the original purchaser of each Model 5820A Calibrator is 1 year beginning on the date received The warranty is located at the front of this manual Note If sending the 58204 in for servicing be sure to send all BNC cables back with the unit Periodic Tests Cables Test the provided 5820A 5800A ca
37. or practices that could result in damage to equipment SYMBOLS MARKED ON THE CALIBRATOR WARNING Risk of electric shock Refer to the manual see the Index for references GROUND Ground terminal to chassis earth A Attention Refer to the manual see the Index for references This symbol indicates that information about usage of a feature is contained in the manual AC POWER SOURCE The Calibrator is intended to operate from an ac power source that will not apply more than 264V ac rms between the supply conductors or between either supply conductor and ground A protective ground connection by way of the grounding conductor in the power cord is required for safe operation USE THE PROPER FUSE To avoid fire hazard use only the specified replacement fuse e For 100 V or 120 V operation use a 5A 250V time delay fuse Fluke PN 109215 e For 220 V or 240 V operation use a 2 5A 250V time delay fuse Fluke PN 851931 GROUNDING THE CALIBRATOR The Calibrator uses controlled overvoltage techniques that require the Calibrator to be grounded whenever normal mode or common mode ac voltages or transient voltages may occur The enclosure must be grounded through the grounding conductor of the power cord or through the rear panel CHASSIS GROUND binding post USE THE PROPER POWER CORD Use only the power cord and connector appropriate for the voltage and plug configuration in your country Use only a power cord that is in good con
38. part number or from the Fluke Corporation and its authorized representatives by using the part number under the heading Fluke Stock Number See Chapter 4 for Fluke contact information List of Replacement Parts The following is a list of replacement parts for the Fluke 5820A 6 3 5820A Service Manual Table 6 1 5820A Manuals Description Qty Fluke Stock Number MANUAL ADDENDUM SET ASIA 5820A OPERATOR 1 802238 MANUAL ADDENDUM SET INTL 5820A OPERATOR 1 802170 MANUAL ENG 5820A OPERATOR 1 802154 Table 6 2 Front Panel Module List of User Replaceable Parts Reference Description Qty Fluke Stock Number Designator A1A1 PWB KEYBOARD 1 760868 A63H19 27 SCREW WH P THD FORM STL 5 20 312 9 494641 A63H29 CLAMP CABLE 50 ID ADHESIVE MOUNT 1 688629 A63MP2 ASSEMBLY FRONT PANEL 1 673087 A63MP3 HANDLE INSTRUMENT GREY 7 2 886333 A63MP4 A63MP7 FRONT PANEL GHZ 1 673084 A63MP8 DECAL OUTPUT BLOCK 1 673191 A63MP9 LENS BEZEL 1 945246 A63MP12 KEYPAD ELASTOMERIC 1 1586646 A63MP13 LCD MODULE 16X2 CHAR TRANSMISSIVE 1 929179 A63MP14 LCD MODULE 40X2 CHAR TRANSMISSIVE 1 929182 A63MP22 KNOB ENCODER GREY 1 868794 A99H4 SCREW SET SCKT SS LOCK 8 32 187 2 801446 A99H5 A99MP6 CABLE CURRENT LOOP 1 673092 A99A99 PCA LOOP GHZ 1 661667 A99MP3 RECEPTABLE LOOP 2 662338 A99MP4 Replaceable Parts 6 List of Replacement Parts
39. the peak to peak value of the signal It is set to DCV using various analog to digital integration times and triggering commands to measure the topline and baseline of the square wave signal Setup for Scope Calibrator Voltage Square Wave Measurements By controlling the HP 3458A s integration and sample time it can be used to make accurate repeatable measurements of both the topline and baseline of the Voltage Square Wave up to 10 kHz To make these measurements the HP 3458A s External Trigger Calibration and Verification 3 Calibration and Verification of Square Wave Voltage Functions function is used in conjunction with the Scope Calibrator External Trigger output In general the HP 3458A is setup to make an analog to digital conversion after receiving the falling edge of an external trigger The conversion does not take place until a time determined by the 3458A DELAY command The actual integration time is set according to the frequency that the DMM is measuring Table 3 2 below summarizes the DMM settings required to make topline and baseline measurements Figure 3 1 shows the proper equipment connections Table 3 2 Voltage HP3458A Settings Voltage HP 3458A Settings Input Frequency NPLC DELAY topline DELAY baseline For all measurements the HP 3458A is in DCV manual ranging with external trigger enabled A convenient method to make these measurements from the HP 3458A s front panel is to program these setting
40. to BNC cable supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of 3 59 5820A Service Manual 3 60 3 55 3 56 the N to BNC cable to one BNC f to SMA m adapter then to the DSO s channel 1 sampling head through the 3 dB attenuator Using the second N to BNC cable connect to the Calibrator Mainframe s EXT TRIG channel 5 connector Connect the BNC end of the cable to a BNC f to SMA m adapter Next connect the adapter to one end of the SMA T connector Connect the T connector to the 3 dB attenuator and attached the attenuator to the DSO s channel 2 sampling head The other end of the T connector should be connected through a 0 5 M cable to the trigger input of the DSO Calibration On the Scope Calibrator keypad select SETUP On the display select the Cal soft key Next select Cal 58XXA soft key For the next soft key selections press Options followed by Next until you see the message Adjust Trigger Skew to 0 0 Follow the front panel skew calibration procedure until you see the message Connect 40 ohm Resistor At this point select Options and then Save the calibration constants Verification On the Calibrator keypad select WSs On the display press the soft key under Pulse Press the soft key under TRIG to select the TRIG 1 External Trigger output Program the Calibrator Mainframe to output 1 ns pulse width and 3 us period at 1 5 V with no skew i e
41. 14 Wave Generator Calibration This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC f to Double Banana adapter e N to BNC cable supplied with the Scope Calibrator Within the calibration menu press the NEXT SECTION blue softkey until the display reads WAVEGEN Cal Then follow these steps to calibrate the Wave Generator 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana adapter 2 Set the HP 3458A to DCV NPLC 01 LEVEL 1 TRIG LEVEL and the DELAY to 0002 for measuring the upper part of the wave form i e topline and the DELAY to 0007 for measuring the lower part of the wave form i e baseline Manually range lock the HP 3458A to the range that gives the most resolution for the topline measurements Use this same range for the corresponding baseline measurements at each step 3 For each calibration step take samples for at least two seconds using the HP 3458A MATH functions to retrieve the average or mean value See Setup for Scope Calibrator Edge and Wave Generator Measurements for more details 3 15 Edge Amplitude Calibration This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC f to Double Banana adapter e N to BNC cable supplied with the Scope Calibrator e 50 Q feedthrough termination Press the NEXT SECTION blue softkey until the di
42. 22 For harmonics 3 4 and 5 record the highest harmonic level of the three measured Harmonics should be below the levels listed in the tolerance column of Table 3 22 Calibration and Verification 3 Verification Table 3 22 Leveled Sine Wave Harmonics Verification Calibrator Mainframe Output Frequency HP 8590A Reading dB Tolerance O 5 5 V p p HAT T J as sas U TTT 2 0 sas owm 845 seas moi 2 SSB eom 845 00 sede U Door 2 sas aki H seas ok 2 000 se sow 845 00 eds Dome 2 0 sas Dom O 845 sas Cem 2 T Come 845 eds Dm 2 sa Demi 845 sas L J gt o o oe eme H sss Oo o T ows om J gt P o T se om J sss T om J gt o o T oe ome sss O T om J gt o sas om sss T eom J gt oo T some sss o T TT 2 sas room 845 oe om o gt ooo T S eomz sss o T Y 1 2 0 SB oome J sass oOo T eom J gt P o oe eomz H sss o oe 3 49 Time Marker Verification This procedure uses the following equipment e PM 6680 Frequency Counter with a prescaler for the Channel C input Option PM 9621 PM 9624 or PM 9625 and ovenized timebase Option PM 9690 or PM 9691 e BNC f to Type N m adapter e N to BNC cable supplied with the Scope Calibrator Set the PM 6680 s FUNCTION to measure frequency with auto trigger measurement time set to 1 second or longer and 50 Q impedance 3 53 5820A Service
43. 3 of p p output 100 uV Ramp Linearity 2 PI Better than 0 1 10 Hz to 10 kHz Resolution 4 or 5 digits depending upon 4 or 5 digits depending upon Frequency Frequency 1 Year Absolute Uncertainty tcal 5 C Y 2 5 ppm 5 Hz Y 2 5 ppm 5 uHz Y The DC offset plus the wave signal must not exceed 30 V rms Applies to the 10 to 90 of the triangle waveform 500 mV p p to 10 V p p No specification below 10 Hz or above 10 kHz With 10 MHz external reference selected the uncertainty becomes that of the external clock plus 5 uHz Uncertainties below 10 Hz are typical Square wave rise fall time typically less than 500 ns 1 14 1 ns Pulse Generator Specifications Pulse Generator Characteristics Positive pulse into 50 0 Typical Rise fall Time lt 500 ps Typical Available Amplitudes 1 5 V 600 mV 150 mV 60 mV 15 mV Pulse Width 1 ns to 500 ns 5 200 ps 20 ms to 200 ns 1 ns lt Pulse width lt 9 9 ns 20 ms to 200 ns 4 or 5 digits depending upon frequency and width 20 33 ppm May generate pulses below 1 ns but pulse width accuracy is not specified Assumes that trigger is used in divide by 1 mode Other divide modes are not specified Pulse skew measured from 30 of trigger signal amplitude to 30 of pulse range amplitude Uncertainty specification applies only for pulse periods that are 3 us or greater in duration Otherwise skew uncertainty is typical 1 15 Trigger Signal Specifications Pulse Fu
44. 3 47 High Frequency Verification eee 3 42 3 48 lt 600 MHz Leveled Sine Harmonic Verification 3 52 3 49 Time Marker Verification cccccccecsseesseeseeseessecseceeeeseeeeseeesneennes 3 53 3 50 Wave Generator Verification sese eee 3 55 3 51 Verification at 1 MG asea gne da ngatain aa 09T 3 55 3 52 Verification at O Uta aa 3 57 3 53 Pulse Width Verification sees eee 3 58 3 54 Pulse Skew Calibration and VYernhcanion sese eee 3 59 3 55 Calibracion diia 3 60 3 56 Verification A ithe ata tee ida deetcteste ko etl as 3 60 3 57 Pulse Period Verification ccccccccscecssessecsseeseceseceeecseeeseeeseeeseneeeses 3 61 3 58 MeasZ Resistance Verification eee eee eee 3 61 3 59 MeasZ Capacitance Verification sse eee ee 3 62 3 60 Overload Function VYen canion sss eee eee eee 3 63 3 61 Hardware AdjUStIMEN S oooonococonoconononnconnconnonn ccoo ncnn nono nono nnconn cnn ran rnna naar 3 65 3 62 Equipment Required sss sese 3 65 3 63 Adjusting the Leveled Sine Wave Function sese 3 65 3 64 Equipment Setra liada 3 65 3 65 Adjusting the Leveled Sine Wave VCO Balance 3 65 3 66 Adjusting the Leveled Sine Wave Harmonics ccccesceeeee 3 66 3 67 Adjusting the Aberrations for the Edge Function 3 67 3 68 Equipment Setup ocios is 3 67 3 69 Adjusting the Edge Aberration eee eee 3 68 Maintenance icon c ini 4 1 del Introduction iia
45. 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 1 500 Calibration and Verification Table 3 20 Low Frequency Flatness Verification cont Lt po 4 ESA ES E El ES EA E E E E ps ES E Ed DO E Flatness Verification 3 3 41 5820A Service Manual 3 47 High Frequency Verification This procedure provides an example of testing high frequency flatness using a 5 mV to 5 5 V output Follow the same procedure for testing other amplitudes only compare results against the flatness specification listed in Table 3 21 For this voltage range you will use the model HP 8482A power sensor 1 Program the Calibrator Mainframe for an output of 5 mV 30 MHz Press on the Calibrator Mainframe to activate the output 2 Allow the power meter reading to stabilize The power meter should display approximately 75 mW Enter the power meter s reading in Column A of Table 3 21 3 Enter 10 MHz into the Calibrator Mainframe Allow the power meter reading to stabilize then enter the power meter s reading in Column B of Table 3 21 4 Enter the next frequency listed in Table 3 21 Allow the power meter s reading to stabilize then enter the reading into Column A of the table 5 Enter 10 MHz into the Calibrator Mainframe Allow the power meter reading to stabilize then
46. 7 5820A Service Manual 6 18 5 5820A Operator Manual 1 4 5820A Service Manual 1 5 A AC Voltage frequency function Verification 3 25 Air filter cleaning the 4 4 Auxiliary input specifications 1 14 C Calibration Scope Calibrator MeasZ 3 16 Pulse Width 3 15 setup 3 6 Calibration 3 6 Calibration and Verification Required Equipment 3 3 Caution 4 4 4 6 Cleaning the air filter 4 4 Cleaning general 4 6 CURRENT Verification 3 27 D DC Voltage function Verification 3 9 3 11 3 20 3 26 E Edge Duty Cycle function Verification 3 31 Edge Frequency function Verification 3 30 Index Edge function Rise time verification 3 31 specifications 1 8 Theory of Operation 2 7 External reference input specifications 1 14 F Fuse replacing the 4 3 G General cleaning 4 6 General specifications 1 6 H Hardware adjustments 3 58 Hardware adjustments for 3 58 Instruction manuals 1 4 L Leveled sine wave function specifications lt 600 Mhz 1 9 Leveled Sine Wave function adjusting the harmonics 3 59 adjusting VCO balance 3 58 Amplitude Verification 3 34 equipment setup 3 13 Flatness Verification High frequency 3 15 High frequency at 5 5V 3 37 Low frequency 3 14 Low frequency at 5 5V 3 36 Low frequency equipment setup 3 34 3 36 Frequency Verification 5 9 Service Manual Harmonics Verification 3 47 5 10 Theory of Op
47. 9 1 617198 A11A101 ENCODER 5520A 7602 1 627232 A11A101 IN GUARD 5520A 7606 1 626900 A11A101 OUT GUARD 5520A 7609 1 626934 A55A55 SIGNAL GHZ A55 1 662301 A55A55 SIGNAL MHZ A55 1 661519 A56MP9 AUX CABLE SMA RT RT 1 647104 A57W6 CABLE TRIGGER SINGLE 1 661485 A64H13 28 SCREW FHU P LOCK MAG SS 6 32 250 20 320093 A64H78 H81 A64H29 CLAMP CABLE 50 ID ADHESIVE MOUNT 1 688629 A64MP2 COVER INSTRUMENT TOP 1 647146 A64MP3 COVER INSTRUMENT BOTTOM 1 627213 A64MP4 REAR PANEL 1 617230 A64MP14 BOTTOM FOOT MOLDED GREY 7 4 868786 A64MP15 A64MP22 A64MP24 A64MP16 21 PLASTIC PART CAP POLYETH 5 8 24 41 6 689320 A64MP51 CABLE GHZ OUT 1 661964 A64MP54 CABLE MHZ GHZ 1 661998 A64MP56 CABLE TRIGGER MHZ GHZ 1 662228 A64MP72 COVER ANALOG 1 673126 A64W1 CABLE SMA ST TO RT 1 626025 A64W7 ASSY OUTPUT BLOCK MODULE GHZ 1 66239 A80A80 PCA VOLTAGE A80 1 626033 A81 CURRENT OUTPUT 5820A 4081 1 662304 A92A93 BANDWIDTH GHZ MODULE 1 659950 6 5820A Service Manual 6 10 REAR PANEL MODULE GHz MODULE SIGNAL MODULE GHz OPTION IG DDS MODULE VE CHANNEL SINGLE CHANNEL QTY FIVE 7 TTION ONLY CHANNEL QTY 2 ADDITIONAL 3X x E O UU O MOTHER BD KNIS SINGLE CHANNEL QTY VE 4 FIVE CHANNEL OTY 4 ADDITIONAL 12X SINGLE CHANNEL OTY 2 FIVE gy CHANNEL OTY 4 ADDITIONAL CABLING DIAGRAM SEE SHEET 6 FOR SINGLE CHANNEL WITHOUT GHZ SEE SHEET 7 FOR FIVE CHANNEL WITHOUT GHZ SEE SHEET 8 FOR SINGLE CHAN
48. 9690 or PM 9691 uncertaint N to BNC Cable supplied with Scope Calibrator Calibration and Verification 3 Equipment Required for Calibration and Verification Table 3 1 Scope Calibrator Calibration and Verification Equipment cont Edge Duty Cycle Minimum Use Specifications Instrument Model Frequency Counter PM 6680 N to BNC Cable supplied with Scope Calibrator Overload Functional Verification Termination E Feedthrough 50 Q 1 N to BNC Cable supplied with Scope Calibrator MeasZ Resistance Capacitance Verification Resistors 40 Q 60 Q 600 kQ and 1 5 MQ nominal values Capacitors 5 pF 28 pF and 50 pF nominal value at the end of BNC f connector Adapters PEN to connect resistors and capacitors to BNC f connector N to BNC Cable supplied with Scope Calibrator Leveled Sine Wave Flatness High Frequency Calibration and Verification Power Meter Hewlett Packard 437B 42 to 5 6 dBm Power Sensor 20 to 19 dBm 10 600 MHz Power Sensor 42 to 20 dBm 10 600 MHz 30 dB Hewlett Packard Range 30 dB Reference 11708A Attenuator supplied with HP 8481D Frequency 50 MHz Adapter Hewlett Packard BNC f to Type N f PN 1250 1474 N to BNC supplied with Scope Cable Calibrator Leveled Sine Wave Frequency Time Marker Verification Frequency PM 6680 with option 2 ns to 5 s 50 kHz to 600 MHz lt 0 1 ppm uncertainty Counter PM 9621 PM 9624 or PM 9625 and PM 9690 or PM 9691 Adapter Pom
49. ESO Complete Columns A E as follows A Enter the 437B or equivalent present frequency Reading W Enter the 437B or equivalent 10 MHz Reading W Apply power sensor correction factor for present frequency W CF Column A entry Apply power sensor correction factor for 10 MHz W CF Column B entry Compute and enter Error relative to 10 MHz 100 sqrt Column C entry sqrt Column D entry sart Column D entry 100 1004V nominal voltage 5 13 Verification Tables for Channels 2 5 The following Verification Tables are to be used to verify channels 2 5 for other functions The verification test points are provided here as a guide when verification to one year specifications is desired 5 14 Leveled Sine Flatness lt 600 MHz Table 5 8 Leveled Sine Flatness 5 5 V Channel 2 Measured Spec Channel Measurement Amplitude Frequency Value Deviation vp p L taness 55 too000 fome 2 tovsine femes 85 1000000 ooz 2 tovsine fatness s5 80000000 ooz 2 evne fatness 85 70000000 ooz 2 tevsine fatness s5 te0000000 ono 2 tevsine fatness 85 Pa0000000 onor 2 tevsine fatness 55 360000000 f oe 2 tovsine fatness s5 aso000000 os o 2 tovsine fatness s5 400000000 gt ox 2 levine femes s5 a0000000 0o12 2 tevsine fatness 55 870000000 ozo 2 levine femes s5 seo000000 ozo 2 tevsine fatness
50. FLUKE 5820A Oscilloscope Calibrator Service Manual PN 673142 June 1999 Rev 2 11 06 1999 2006 Fluke Corporation All rights reserved Printed in U S A All product names are trademarks of their respective companies LIMITED WARRANTY 8 LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service The warranty period is one year and begins on the date of shipment Parts product repairs and services are warranted for 90 days This warranty extends only to the original buyer or end user customer of a Fluke authorized reseller and does not apply to fuses disposable batteries or to any product which in Fluke s opinion has been misused altered neglected or damaged by accident or abnormal conditions of operation or handling Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non defective media Fluke does not warrant that software will be error free or operate without interruption Fluke authorized resellers shall extend this warranty on new and unused products to end user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Warranty support is available if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price Fluke reserves the right to invoice Buyer
51. HP 3458A to DCV NPLC 001 LEVEL 1 TRIG LEVEL and the DELAY to 00012 for measuring the topline and DELAY to 00007 for measuring the baseline Manually range lock the HP 3458A to the 100 V dc range 4 Change the Calibrator Mainframe output frequency to 10 kHz Push the operate key and use the HP 3458A to measure the topline and baseline 5 The peak to peak value is the difference between the topline and baseline Record these values in Table 3 18 and compare against the listed tolerance Table 3 18 Tunnel Diode Pulser Verification Nominal Value Frequency Measured Value Deviation 1 Year Spec V p p Hz V p p V p p V p p Pot too 802 pts ttn O oo 5 poa poo Ino 55 1o00 a Ef wo too po 200 100 10000 oo To 20002 3 42 Leveled Sine Wave Amplitude Verification This procedure uses the following equipment e 5790A AC Measurement Standard e BNC f to Double Banana Plug adapter e 50 Q feedthrough termination e N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Levsine menu Press S on the Calibrator Mainframe to activate the output Then follow these steps to verify the leveled sine wave amplitude 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to the 50 Q feedthrough termination then to the 5790A INPUT 2 using the BNC f to Double Banana adapter 2 Set the 5790A
52. LA LA LA LA LA LA LA LA LA LA LA LA t t t t t OONA Ln E UN S ON Si Chapter 2 Theory of Operation Title Page Intro GUCHI OM ii ia 2 3 Voltage MOE weiss cecseare devs can tengued side evessi adere e caeevtcade de agua es 2 7 Edges Mode id 2 7 Leveled Sine Wave Mode 2 7 Time Marker Mode ei 2 7 Wave Generator LT T 2 8 Pulse Grenieratores a ata 2 8 Input DC Voltage Measurement Mode sss sese 2 8 Input Impedance Mode Resistance sss sss eee 2 8 Input Impedance Mode Capacianc l sss sees 2 8 Current Module os idad 2 9 Overload Mode siii tii indie 2 9 Trigger INN 2 9 High Frequency Switching eee eee 2 9 Channel Option ii iria 2 9 GHz Option Module oooooonocnconcnocnnonononnconcconccon E E 2 9 5820A Service Manual 2 2 Theory of Operation 2 Introduction Introduction The following discussion provides a brief overview of the following 5820A operating modes Voltage Edge Leveled sine wave Time marker Wave generator Video Pulse generator Input impedance Overload Current 5 Channel Option DC Volts Measure GHz Option 2 1 GHz Leveled Sine and Fast Edge This discussion will allow you to identify which of the main plug in boards of the Calibrator Mainframe are defective Figure 2 1 shows a block diagram of the 58204 Note that while ac power is filtered on the A3 Mother Board most supply voltages are derived on the A80 Voltage Board The components in the scope module are shown in F
53. Mainframe to the Spectrum Analyzer Adjust the Spectrum Analyzer so that it displays one peak across its horizontal center line The far right of the peak is fixed at the far right of the center line as shown below Adjusting the Leveled Sine Wave VCO Balance Once you have completed the setup described above perform the following procedure to adjust the VCO balance for the leveled sine wave function 1 Program the Calibrator Mainframe for an output of 5 5 V 600 MHz 2 Set the Spectrum Analyzer to the parameters listed below Spectrum Analyzer Setup Start Frequency 10 MHz Stop Frequency 800 MHz Resolution Bandwidth 30 kHz Video Bandwidth 3 kHz Reference Level 20 dBm 3 65 5820A Service Manual The Spectrum Analyzer will display a spur at 153 MHz Refer to Figure 3 10 to identify the spur 3 You need to adjust the wave until the spur is at a minimum To do this slowly rotate R1 shown in Figure 3 10 counterclockwise until the spur is at a minimum As you adjust it the spur will move down the waveform towards the right As soon as the spur is minimized stop rotating R1 If you rotate it too far the spur will reappear Once you have turned R1 to the point at which the spur is at a minimum the signal is balanced between the VCOs and you have completed the adjustment Ri 153 MHz Spur om052f eps Figure 3 10 Adjusting the Leveled Sine Wave Balance 3 66 Adjusting the Levele
54. Manual Set the Calibrator Mainframe to Marker mode Press on the Calibrator Mainframe to activate the output Then follow these steps to for each period listed in Table 3 23 1 Program the Calibrator Mainframe to the output as listed in Table 3 23 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the PM 6680 at the channel indicated in Table 3 23 You will need the BNC N adapter for the connection to Channel C 3 Set the filter on the PM 6680 as indicated in the table Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed for the Calibrator Mainframe 4 Invert the PM 6680 s frequency reading to derive the period For example a reading of 1 000006345 kHz has a period of 1 1 000006345 kHz 0 999993655 ms Record the period in the table and compare to the tolerance column Table 3 23 Marker Generator Verification Period Measured Value a 1 Year Spec s s ee A O A gt 2 E O asma oo txt TA E PAN ES gt O IIS ES E E CI ARA oo AO Sox fo ss gt gt gt o pp meses TT E E E Y SE INE L E EEE Sox ES 20x10 ENT 3 54 Calibration and Verification 3 Verification 3 50 Wave Generator Verification This procedure uses the following equipment e 5790A AC Measurement Standard e BNC f to Double Banana adapter e 50 Q feedthrough termination e N to BNC cable supplied with the Calibrator Mainframe See Figure 3 8
55. NEL WITH GHZ SEE SHEET 9 FOR FIVE CHANNEL WITH GHZ 5820A Final Assembly Sheet 4 of 9 yul75f eps Figure 6 1 Final Assembly cont Replaceable Parts 6 List of Replacement Parts r H13 H28 H78 H81 16X 5820A Final Assembly Sheet 5 of 9 yu180f eps Figure 6 1 Final Assembly cont 5820A Service Manual 6 12 Table 6 5 Single Channel Without GHz Option List of Replaceable Parts Reference Description Qty Fluke Stock Number Designator A54MP2 ADAPTER COAX SMA F SMA M SMA P 1 688710 TEE A54MP8 CABLE SMA RT TO RT 2 659968 A54MP13 A54W2 4 CABLE SMA ST TO RT 3 626025 A54W6 CABLE TRIGGER 5 CHANNEL 1 926009 A54W9 12 CABLE SMA ST TO RT 4 626017 A56MP9 AUX CABLE SMA RT RT 1 647104 A99MP6 CABLE CURRENT LOOP 1 673092 A99A99 PCA LOOP GHZ 1 661667 Replaceable Parts List of Replacement Parts GHZ SEE SECTION A A SHEET ra AM WHT BRN a HHT BLU ATTACHMENT OF WIRES FROM TRANSFORMER DETAIL A SINGLE CHANNEL WITHO SHOWN CLEAR OF FORM WIRES AS POWER SWITCH om OUT MODIFICATION OF ROUTING WIRES ON FILTER lt L EE YD lt L A LU EE lt L CO
56. Rload Rload where Rload actual feedthrough termination resistance Record each reading as indicated in Table 3 14 Calibration and Verification 3 Verification Table 3 14 Edge Amplification Verification a baterai HP 3458A Topline Baseline gain Tolerance Mainframe Edgel Range Readin Readin Peak xX V Output 9 9 9 Correction S 100 mV 1 kHz 100 mV de 5 mV 10 kHz 100 mV dc 10 mV 10 kHz 100 mV de 25 mV 10 kHz 50 mV 10 kHz 100 mV 10 kHz 1Vdo 500 mV 10 kHz 1Vdo 1 00 V 10 kHz 2 5 V 10 kHz 3 37 Edge Frequency Verification This procedure uses the following equipment e PM 6680 Frequency Counter with an ovenized timebase Option PM 9690 or PM 9691 e N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Edge menu Press on the Calibrator Mainframe to activate the output Then follow these steps to verify Edge frequency 1 Set the PM 6680 s FUNCTION to measure frequency on channel A with auto trigger measurement time set to 1 second or longer 50 impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A 3 Program the Calibrator Mainframe to output 2 5 V at each frequency listed in Table 3 15 4 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed in Table 3 15 Compare to the tolerance column of Table 3 15 3 31 5820A Service Manual Tab
57. Tunnel diode drive capability 1 13 V Verification Scope Calibrator 3 19 AC Voltage frequency 3 25 DC Voltage 3 9 3 11 3 20 3 26 3 27 Edge Duty Cycle 3 31 Edge Frequency 3 30 Edge rise time 3 31 Leveled Sine Wave Amplitude 3 34 Leveled Sine Wave Frequency 5 9 Leveled Sine Wave Harmonics 3 47 5 10 MeasZ Capacitance 3 56 MeasZ Resistance 3 55 Overload function 3 57 Pulse period 3 55 Pulse width 3 53 Time Marker 3 48 Wave Generator 3 50 Volt function specifications 1 7 W Wave generator specifications 1 11 Wave Generator function Verification 3 50
58. Wave Frequency Verification GHz Leveled Sine Wave Harmonics Verification Verification Tables sese eee Verification Tables for Channels 2 5 Leveled Sine Flatness lt 600 MHz Pulse Widthia siso ss sais varias tiene ia Edge Rise Time Verification Channels 2 5 NO A TN Channel 2 DMM Input sss sees eee eee Channel 3 DMM Input sese sees ee eee eee Channel 4 DMM Input sss sees eee eee Channel 5 DMM Input sese sees eee eee Capacinet Chapter 5 Options 5 1 5820A Service Manual 5 2 Options 5 Introduction 5 1 Introduction The following describes additional options to the standard 5820A Calibrator 5 2 5820A 5 Option The 5820A 5 option allows you to calibrate up to five oscilloscope channels simultaneously without changing cables This allows you to perform fast automated calibrations with documented procedures and results while freeing the operator to complete other work All signals except for current are routed through this switch system This option is discussed throughout the manual where appropriate The specifications for 5820A calibrators with the 5820A 5 Option are the same as for units without this option Note If the 58204 is equipped with the 5 channel option the Mainframe will indicate when to move to the next channel 5 3 GHz Module The GHz option extends leveled sine from 600 MHz to 2 1 GHz and adds a 150 ps 250 mV fast edge signal The GHz Module off
59. a jack Assembly mounting 1000 Q User Supplied Measured to 0 05 125 mW including banana jack Resistor mounting Assembly N to BNC supplied with Scope Cable Calibrator Pulse Width Calibration and Verification High Frequency Digital Tektronix 11801 with Tektronix SD Storage Oscilloscope 22 26 sampling head or Tektronics TDS 820 scope with 8 GHz option Attenuator 2 Ee RA o o 3 dB SMA m f SMA T connector E 74 m f m 0 5 M SMA cable PL ery Adapter 2 Po BNC to SMAM N to BNC Cable 2 supplied with Scope Calibrator Leveled Sine Wave Frequency Verification Frequency PM 6680 with option PM 9621 PM 9624 50 kHz to 600 MHz lt 0 1 ppm Counter or PM 9625 and PM 9690 or PM 9691 uncertainty Adapter Pomona 3288 BNC f to Type N m N to BNC Cable supplied with Scope Calibrator Leveled Sine Wave Flatness Low Frequency Calibration and Verification AC Measurement Fluke 5790A 5 mV p p to 5 5 V p p Standard with 03 option 50 kHz to 10 MHz Adapter Pomona 3288 BNC f to Type N m N to BNC Cable supplied with Scope Calibrator Leveled Sine Wave Harmonics Verification Spectrum Analyzer HP 8590A 600 MHz and below HP 8592L Above 600 MHz GHz Option Adapter Pomona 3288 BNC f to Type N m N to BNC Cable supplied with Scope Calibrator Pulse Period Edge Frequency AC Voltage Frequency Verification Frequency Counter PM 6680 with option PM 20 ms to 150 ns 10 Hz to 10 MHz lt 0 12 ppm
60. able is used to route the output signal to the high frequency switches on the front panel 5 5 5820A Service Manual 5 6 New PCB Aux Input 5 9 10 MHz Ref osc From 600 MHz Bd with Trigger Attenuator removed 1 2 2 4 GHz Synthesizer and Amplifier i 10 MHz Reference Signal 8 dB Step Attenuator 150 pS Edge Aux Switch aag072f eps Figure 5 1 GHz Block Diagram Fast Edge Adjustment for the GHz Module The GHz module consists of two boards A93 and A92 The fast edge is generated on A92 There are two adjustments for the fast edge e R175 adjusts the edge trigger level e R188 adjusts the amplitude of the porch signal on which the fast edge signal rides While R175 can be adjusted through a hole in the machined cover adjusting R188 requires that the A92 cover be removed Before the module is taken apart the fast edge should be checked against the specifications when viewed through a scope set to 1 ns division If no signal above the porch appears try adjusting R175 Failure of the edge to appear above the porch may indicate that R188 also needs adjustment A typical fast edge waveform looks like Figure 5 2 Notice how the fast edge signal rides on top of a porch signal Note All 5820A Calibrators shipped after serial number 8750001 and Calibrators sent in for installation or repair of the fast edge after Octo
61. ainframe display indicates that the next steps calibrate ac Voltage Press the STORE CONSTS blue softkey to store the new calibration constants AC Voltage must now be calibrated Continue with the next section AC Voltage Calibration This procedure uses the same equipment and setup as dc voltage calibration DC voltages are measured and entered in the Calibrator Mainframe to calibrate the AC Voltage function Set up the Calibrator Mainframe to Cal ACV Press the NEXT SECTION blue softkey until the display reads The next steps calibrate Scope Calibrator ACV Then follow these steps to calibrate ac voltage 1 Press the GO ON blue softkey 2 Allow the HP 3458A dc voltage reading to stabilize Enter the reading via the Calibrator Mainframe front panel keypad then press ENTER Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the reading insuring proper multiplier i e m u n p If the warning still occurs repair may be necessary 3 Repeat step 2 until the Calibrator Mainframe display indicates that the next steps calibrate WAVEGEN Press the STORE CONSTS blue softkey to store the new calibration constants Calibration and Verification DC Measurement Calibration 3 10 DC Measurement Calibration This procedure uses the following equipment e 5520A calibrator To set 5820A to the Voltage Measurement Calibration mode
62. al Specifications cc eee rereeerererererenerenerenos 1 7 1 8 Voltage Output Specihcationg sees ee eee 1 8 1 9 DC Volt Measure Specifications sese eee eee 1 8 1 10 Edge Specifications cid ds 1 9 1 11 Leveled Sine Wave Specifications 600 MHZ eee eee 1 10 1 12 Time Marker Specifications sese eee eee 1 10 1 13 Wave Generator Specifications see eee eee 1 11 1 14 1 ns Pulse Generator Specifications ee 1 11 1 15 Trigger Signal Specifications Pulse Functions eee 1 11 1 16 Trigger Signal Specifications Time Marker Function 1 12 1 17 Trigger Signal Specifications Edge Function sese eee 1 12 1 18 Trigger Signal Specifications Square Wave Voltage Function 1 12 1 19 Trigger Signal Specifications TV see 1 12 1 20 Tunnel Diode Drive Capability sss sese sees eee 1 12 1 21 Oscilloscope Input Resistance Measurement Specifications 1 12 1 22 Oscilloscope Input Capacitance Measurement Specifications 1 12 1 23 Overload Measurement Specifications sese ee 1 12 1 24 External Reference Input Specifications sese ee ee eee eee 1 12 1 25 Auxiliary Input Output Specifications sese ee ee eee ee eee ee 1 13 1 26 Current Output Specifications sees eee eee eee 1 13 Theory of Operation iia ii 2 1 A OTERO 2 3 2 2 Voltage O Lee a ii 2 7 2 3 Eder Mods A da A dake 2 7 2 4 Leveled Sine Wave Mode sese 2 7 2 5 Time Marker Modernas tana 2 7 5820A Service Manual 2 6 Wave
63. ance column of Table 3 26 3 Change the pulse amplitude and repeat the measurements for an amplitude of 0 15 V Y ou will need to change the vertical scale of the DSO Table 3 26 Pulse Generator Verification Pulse Width Nominal Value Pulse Width Period Measured Deviation 1 Year Spec aa p p E Ea Value Ps E s 10x10 200 0 10 250x10 ss sone roma NEC amo roxo 1 Casto MEC ooo ICO CTA emo mono tower IT 0150 so00x10 eane 252xw 3 54 Pulse Skew Calibration and Verification The following equipment is used to Calibrate and verify Pulse Skew e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e SMA T m f m connector e 3 dB attenuator SMA m f e BNC f to SMA adapter 2 e 0 5m SMA m SMA m cable e N to BNC cable supplied with the Scope Calibrator 2 The skew function was introduced in December 1998 It is available only in Scope Calibrators shipped since that time Skew calibration and verification is normally performed as part of the pulse width calibration and verification procedure For these procedures skew is measured from 30 of the trigger signal amplitude to 30 of pulse amplitude As an example the trigger output is 1 0 V into 50 Q if the pulse amplitude is 1 5 V the skew would be measured from 450 mV point on the pulse to 300 mV on the trigger Put the Calibrator into standby Connect the N
64. and Specifications 1 Introduction 1 1 Introduction The Fluke Model 5820A Oscilloscope Calibrator Figure 1 1 is a precise instrument that calibrates analog and digital oscilloscopes Specifications are provided in this chapter AA Warning To prevent electric shock or other possible injuries the 5820A Calibrator must be operated in the way specified by this manual or other documentation provided by Fluke A Caution Input voltages exceeding 30 V dc may cause damage to the instrument Do not apply voltages except in voltage measurement mode Features of the 5820A Calibrator include the following e Automatic meter error calculation s and keys that change the output value to pre determined cardinal values for various functions e Programmable entry limits that prevent invalid amounts from being entered e Edge Leveled Sine Pulse Marker and Wave Generation modes e Accurate oscilloscopic input impedance measurement e Tunnel Diode Pulse compatibility e DC Volt Measure Mode e Current Mode generates both DC and low frequency ac current e ns to 500 ns pulse width capability with skew controlled trigger ee Z ES gt E W 3 3 3 Se RSS HS 0 r ll 010 SEE E AL A caga EE am DOG 008 DB DB EG ONO 000 00 BE 2000 000 e NO 000 ce e Figure 1 1 5820A Oscilloscope Calibrator SES HS ES
65. andard Interfaces IEEE 488 GPIB RS 232 Temperature Performance Operating 0 C to 50 C Calibration tcal 15 C to 35 C Storage 20 C to 70 C Electromagnetic Compatibility Designed to operate in Standard Laboratory environments where the Electromagnetic environment is highly controlled If used in areas with Electromagnetic fields gt 1 V m there could be errors in output values From 80 252 MHz the current output is susceptible to a field strength of gt 0 165 V M Temperature Coefficient Temperature Coefficient for temperatures outside tcal 5 C is 0 1X C of 1 year specification Relative Humidity Operating lt 80 to 30 C lt 70 to 40 C lt 40 to 50 C Storage lt 95 noncondensing Altitude Operating 3 050 m 10 000 ft maximum Nonoperating 12 200 m 40 000 ft maximum Safety Designed to comply with IEC 1010 1 1992 1 ANSI ISA S82 01 1994 CAN CSA C22 2 No 1010 1 92 Output Impedance The 5820A is designed to drive both 50 O and 1 MO loads Analog Low Isolation 20V EMC Complies with EN 61326 1 Line Power Line Voltage selectable 100 V 120 V 220 V 240 V Line Frequency 47 to 63 Hz Line Voltage Variation 10 about line voltage setting Power Consumption 250 VA Dimensions Weight Height 17 8 cm 7 inches standard rack increment plus 1 5 cm 0 6 inch for
66. ao 5 15 Pulse Width Table 5 12 Pulse Width Measured Channel Measurement Amplitude Period Value Deviation Spec s 5 23 5820A Service Manual 5 16 Edge Rise Time Verification Channels 2 5 Table 5 13 Edge Rise Time Channel 2 Measured Channel Measurement Amplitude Frequency Value Deviation Spec s Table 5 14 Edge Rise Time Channel 3 Measured Channel Measurement Amplitude Frequency Value Deviation Spec s Table 5 15 Edge Rise Time Channel 4 Measured Channel Measurement Amplitude Frequency Value Deviation Spec s Table 5 16 Edge Rise Time Channel 5 Measured Channel Measurement Amplitude Frequency Value Deviation Spec s 5 24 Options Verification Tables for Channels 2 5 5 17 Pulse Skew Table 5 17 Pulse Skew Measured Channel Measurement Period Value Deviation Spec s Tas ston aes lens beer amem ra nite ston hea hens beer soen o nite ston Tans hens beer T Ten ra nite on haea les beer amem o nite ston aes roscas beer lT Ten 5 18 Channel 2 DMM Input Table 5 18 Levsine Amplitude Measured Channel Measurement Amplitude Frequency Value Deviation Spec s Table 5 19 DC Voltage 1 MQ Measured Channel Amplitude Value Deviation Spec V 5 25 5820A Service Manual Table 5 20 AC Voltage 1 MQ Measured Channel Function Measurement Amplitude Frequency Value Deviation Spec Vp p acvh amplitude
67. ber 1 2004 have a new fast edge circuit that is factory set and requires no adjustment The new fast edge has slightly larger amplitude 300 mVpp but the rise time meets all specifications Unlike the previous fast edge the product has no porch as was shown in Figure 5 2 Adjustment holes for the older product have been blocked Options 5 GHz Module Amplitude from porch to top 250mV Rising edge lt 150ps yu005 eps Figure 5 2 Fast Edge Full Wave Form The fast edge testing procedure uses the following equipment A Tektronix TDS 820 with 8 GHz bandwidth option or a Tektronix 11801 with an SD 26 module 3 DMM It is suggested that an extender card be used during adjustment Use the following steps to test and adjust the circuits on A92 1 2 RAE OY A Remove the GHz module and remove the machined cover over the A92 module Before the adjustment check that the resistance measured across the tunnel diode CR21 is between 2 Q and 5 Q If this measurement is less than 2 Q or more than 5 O the tunnel diode may be damaged Install the GHz module on the extender board Connect the trigger signal from A55 to the trigger input J2 SMB on the A92 board Connect a scope to the GHz signal output connector J4 SMA Apply power No other cables need to be attached Set the 5820A edge function to fast edge on via the front panel Adjust the oscilloscope vertical offset so tha
68. bles every 100 uses and replace cables after 5000 uses Cables should be inspected for lose boots over cable and lose or weak crimps on the cable braiding outer shell The test should verify that a gentle tug does not pull the cable apart Resistance between shell and center should be greater than 100 MQ Resistance should be less than 0 3Q for either the center pin to center pin or BNC inner shell to N inner shell Channel Select Switches Test the 5 channel select switches before every oscilloscope calibration The test involves multiplexing all of the channels into the AUX channel and using a DMM to measure a short at the end of each cable BNC female connector with wire solder between center pin and barrel works well Check each channel five times cycle through all five channels each cycle for stable ohms measurement 200 mQ Successive readings in a channel that vary by more than 200 mQ indicate a bad channel If the bad reading is occurring on all five channels the SPDT AUX switch may be bad If channel 1 or channel 5 is bad the SPDT TRIGGER switches may be bad or the 5 channel select switch may be bad If channel 2 3 or 4 is bad the 5 channel select switch is suspect Replacing any switch will likely require 58XXA recalibration for the channels involved Clock Frequency Check the clock frequency at every calibration The 5820A should be set to Leveled Sine function at 10 MHz and adjustment should be made so that a Fluke 6680A or equi
69. c 35 1250000000 as 2ngharmonie 35 1285000000 s Orce harmonte 35 1285000000 e 2ndharmonie as 197000000 es O Srd hamonie 35 1875000000 e 2ngharmonie as 1425000000 as O Srd hamonie 35 1425000000 e 2ngharmonie as 1475000000 as O Srd hamonie 35 1475000000 e 2ndharmonie 35 15000000 s Sidrharmonic 35 18500000000 e 2ndharmonie as 1525000000 s Srd harmonte 35 1526000000 as 2ngharmonie 35 16000000 s Srd harmonie 35 1600000000 e 2ngharmonie as 1650000000 s O Srd harmonte 35 1650000000 e 2ngharmonie 35 1750000000 s Orce harmonte 35 1750000000 as 2ndharmonie as 1850000000 es O Srd harmonte 35 1850000000 e 2ndharmonie as 19000000 s O Srd harmonie 35 1980000000 e 2ngharmonie 35 19000000 s Srd harmonte 35 190000000 e emahamorio 35 eeo fe Srd harmonie 35 2080000000 e 2ngharmonie as 2080000000 s Srd harmonie as 208000000 we 5 5820A Service Manual Table 5 7 GHz Leveled Sinewave Verification Flatness Channels 1 2 and 5 Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec Pas eso faso room so mom so mom _ fuso rasgos _ ro Presos fuso Psrsomo0 fuso IEC _ f
70. cated at the left side of the compartment cover Pry the tab out of the slot and the compartment cover will pop part way out Remove the compartment cover with your fingers The fuse comes out with the compartment cover and can be easily replaced ONS a es ee To reinstall the fuse push the compartment cover back into the compartment until the tab locks with the ac input module Table 4 1 Replacement Fuses A109181 2A 250V SB Time Delay 100 V or 120 V A To ensure safety use exact replacement fuse only A109272 1A 250V SB Time Delay 200 V or 240 V 4 3 5820A Service Manual aag067f eps Figure 4 1 Accessing the Fuse 4 3 Cleaning the Air Filter A A Warning To avoid risk of injury never operate or power the 5820A calibrator without the fan filter in place ACaution To avoid possible damage caused by overheating keep the area around the fan unrestricted If the air intake becomes restricted the intake air will be too warm or the filter will become clogged The air filter must be removed and cleaned every 30 days or more frequently if the calibrator is operated in a dusty environment The air filter is accessible from the rear panel of the calibrator 4 4 4 8 3 Si Ss 2 lt So SS gt S q D O To clean the air filter refer to Figure 4 2 and proceed as follows 1 Disconnect line power 2 Remove the filter element Grasp the top and bottom of the air filter
71. ctor V p p V p p YP 10 kHz PD square 18mv 20000 0000 square 10mv 20000 0000457Y square 2tomy 20000 000075Y square 220mv 20000 000076 square s60my 20000 0B square s99mv 20000 oov square omv 20000 00 square 155mv 20000 000475Y square 2omv 20000 0o00667v square 220mv 20000 oov square seomv 20000 omev square eoomv 20000 oov square ogov 20000 ot square 375v 20000 tt square 6s0v 20000 HIRR square sev 20000 Ct square g8v 20000 Cat square ssov 20000 tO sine temvo 2e ooos4v sine zsm 2s oov sine coomy 2s oar sine atamv ases oooezv sine smv 2s oov sine esv 2s tore sine sv Teepe o ov tange 18mv sen 00014 tiange 29m sen 0757 tiange es9mv sen HOUREN tiange 219mv sen oooezv tiange eomv sen oov tiange esov sen tore tiange ssv sen tesowv 3 56 Calibration and Verification 3 Verification 3 52 Verification at 50 42 Set the Calibrator Mainframe impedance to 50 Q The blue softkey under SCOPE Z toggles the impedance between 50 Q and 1 MQ 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to the 50 Q feedthrough term
72. d Sine Wave Harmonics The following procedure adjusts the harmonics for the leveled sine wave function Note This procedure should only be used for adjusting the leveled sine wave harmonics Do not use this procedure as a verification test The specifications in this procedure are not valid for verification 1 Set the Spectrum Analyzer to the parameters listed below Spectrum Analyzer Setup Start Frequency 50 MHz Stop Frequency 500 MHz Resolution Bandwidth 3 MHz Video Bandwidth 3 kHz Reference Level 20 dBm 2 Use your Spectrum Analyzer s Peak Search function to find the desired reference signal The Analyzer should show the fundamental and second and third harmonics The harmonics need to be adjusted so that the second harmonic is at 33 dBc and third harmonic should typically be at 38 dBc as shown in Figure 3 11 3 To adjust the harmonics adjust R8 as shown in Figure 3 11 until the peaks of the second and third harmonic are at the correct dB level You may find that you can 3 66 3 67 3 68 Calibration and Verification 3 Hardware Adjustments place the second harmonic at 33 dBc but the third harmonic is not at 38 dBc If this is the case continue adjusting R8 The second harmonic will fluctuate but there is a point at which both harmonics will be at the correct decibel level 2nd harmonic 3rd harmonic aag051f eps Figure 3 11 Adjusting the Leveled Sine Wave Ha
73. ding Reading Correction 1 kHz Gw fume H o om meme o q o Com mma o dt To sw owd o em owd o T E IO EOS IES WS IO EE IES III IE IS IES IA IO IE IES INSI AOS IES IES ANA 0 000043 0 000065 0 000065 0 000103 0 000103 500 mV 0 00129 0 00129 0 00554 0 00554 0 01654 0 01654 3 31 AC Voltage Frequency Verification This procedure uses the following equipment e PM 6680 Frequency Counter with an ovenized timebase Option PM 9690 or PM 9691 e N to BNC cable supplied with the Scope Calibrator Refer to Figure 3 5 for the proper equipment connections 3 25 5820A Service Manual 5820A Cable 0 1 At 50 MHZ X SOURCE MEASURE PM 6680A i JOO cme an CHAN 3 Le 1 AUX 00 A yu057f eps Figure 3 5 Setup for AC Voltage Frequency Verification Set the Calibrator Mainframe to the Volt menu Press on the Calibrator Mainframe to activate the output Then follow these steps to RT ac voltage frequency 1 Set the PM 6680 s FUNCTION to measure frequency on channel A with auto trigger measurement time set to 1 second or longer IMQ impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A 3 Program the Calibrator Mainframe to output 2 1 V at each frequency listed in Table 3 9 4 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed in Table 3 9
74. ding to stabilize then record the HP 3458A reading for each voltage in Table 3 6 4 Multiply the readings by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Calibration and Verification 3 Verification Table 3 5 DC Voltage Verification Into 1 MQ Impedance Unless Noted V dc V dc V dc E ES 25 LV 000125 po 25 3 uV oons AA 25 3 uV 000249 _______ 25 6 uV 00029 _ 25 6 uV 00285 pp 25 6 uV 00058 25 6 uV 0006625 ______ 26 5 uV 00085 26 5 uV 009 27 5 uV 0008 27 5 uV PIS IE 27 5 uV oa O E 27 5 uV oors po 29 4 uV 00175 pp 29 4 uV 00249 pp 31 2 uV 0049 oo 31 2 uV 0o25 IO 31 2 uV 0005 op 31 2 uV 0065 T 41 8 uV 0067 ____ 41 8 uV otws 52 5 uV tos 52 5 uV E fo A 52 5 uV E A 52 5 uV Loss pp 101 50 uV ess po 101 50 uV Estou 150 uV o o oo 150 uv 3 21 5820A Service Manual Table 3 5 DC Voltage Verification cont Nominal Value Measured Value Deviation 1 Year Spec V de V de V dc di IE 1d EA PET ooo o NE oos E 88 Pass 882 Pato re pe AE AECE 22 14 E AA e 1 1 E AA ce mv pe Jo dot 10990 mv og Tm E TA O A 1 A Ea aio O OO zs Pt mV mn F tm P08 mv IEC 8 eso tS mV Table 3 6 DC Voltage Verification at 50 Q Calibrator Mainframe HP 3458A Rdg V dc Reading x Correction To
75. dition Refer power cord and connector changes to qualified service personnel DO NOT OPERATE IN EXPLOSIVE ATMOSPHERES To avoid explosion do not operate the Calibrator in an atmosphere of explosive gas CHECK INSULATION RATINGS Verify that the voltage applied to the unit under test does not exceed the insulation rating of the UUT and the interconnecting cables DO NOT REMOVE COVER DURING OPERATION To avoid personal injury or death do not remove the Calibrator cover without first removing the power source connected to the rear panel Do not operate the Calibrator without the cover properly installed Normal calibration is accomplished with the cover closed Access procedures and the warnings for such procedures are contained in the Service Manual Service procedures are for qualified service personnel only DO NOT ATTEMPT TO OPERATE IF PROTECTION MAY BE IMPAIRED If the Calibrator appears damaged or operates abnormally protection may be impaired Do not attempt to operate the Calibrator under these conditions Refer all questions of proper Calibrator operation to qualified service personnel Chapter 1 Table of Contents Title Page Introduction and Specifications esse eeseee sees sees ees seeseee esec eee ee e 1 1 O O ON 1 3 1 2 How to Contact Fluke ross 1 4 1 3 Instruction Manuals sse sese eee eee 1 4 1 4 5820A Operators Manual eee 1 4 1 5 5820A Service Manual sse ee ereer 1 5 I Spec ACAO ONS ii da 1 5 1 7 Gener
76. e o po o of woe Complete Columns A G as follows A Enter the 437B present frequency Reading W B Enter the 437B 10 MHz Reading W C Apply power sensor Correction factor for present deta W CF Column A entry D Apply power sensor correction factor for 10 MHz W CF Column B entry E Compute and enter Error relative to10 MHz 100 SEO C Column D entry 1 F Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example G Compute and enter the calibration mainframe flatness deviation Column E Column F 3 44 Calibration and Verification 3 Verification Table 3 21 High Frequency Flatness Verification cont Calibrator Calibrator i Mainframe Freq Flatness MHz Spec ECON ces Tan comme Y YO 250 MHz Complete Columns A G as follows Enter the 437B present frequency Reading W Enter the 437B 10 MHz Reading W Apply power sensor correction factor for present deta W CF Column A entry Apply power sensor correction factor for 10 MHz W CF Column B entry Compute and enter Error relative to10 MHz 100 SEO C Column D entry 1 Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example Compute and enter the calibration mainframe flatness deviation Column E Column F T m D OW gt 9 3 45 5820A Service Manual
77. e instrument The 5820A Service Manual is optional Order additional copies of the manuals separately using the part number provided For ordering instructions refer to the Fluke Catalog or ask a Fluke sales representative These manuals are also available on Fluke s web site www fluke com 5820A Operators Manual The 5820A Operators Manual provides complete information for installing the 5820A Oscilloscope Calibrator and operating it from the front panel keys and in remote configurations The manual also provides a glossary of calibration specifications and error code information The 58204 Operators Manual includes the following topics e Installation e Operating controls and features including front panel operation e Remote operation IEEE 488 bus or serial port remote control Introduction and Specifications Specifications e Serial port operation printing displaying or transferring data and setting up for serial port remote control e Operator maintenance including verification procedures and calibration approach for the 5820A e Accessories e Error Messages 5820A Service Manual This 58204 Service Manual includes product specifications appropriate theory of operation calibration and verification procedures maintenance information and options Specifications The following paragraphs describe the details for the 5820A specifications All specifications are valid after allowing a warm up period of 30 minutes
78. e optional GHz module if installed High Frequency Switching For the standard single channel calibrator output signals except for current and trigger are routed to a high frequency switch From the switch the signals are cabled to the 5820A 4096 output block For the single channel unit the trigger signal and current signal are cabled directly to the output block and current loop respectively A high frequency relay is used to select between the auxiliary input signal Auxin and the output signal The selected signal is cabled to connectors on the front panel In five channel units additional high frequency switches are used to route the trigger signal out channel 1 or channel 5 5 Channel Option This option multiplexes the output to one of the 5 channels All signals except for current are routed through this switch system GHz Option Module The GHz option extends leveled sine from 600 MHz to 2 1 GHz and adds a 150 ps 250 mV fast edge signal For more information on the GHz Option Module see the Options Chapter 2 9 5820A Service Manual LA LY LY Y UY WW ADUANA UY UY UY UY UY UY UY UY UY UY UY UY Uy UY UY UY UY WW UY UY UY UY Uy Uy W Uy A E A o ee Chapter 3 Calibration and Verification Title Page INTO DST ii A An aiii 3 3 Equipment Required for Calibration and Verification 3 3 Calibration Setup a illa 3 6 Calibration and Verification of Square Wave Voltage Functions 3 6 O
79. e to10 MHz 100 SEO C Column D entry 1 Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example T m D OW gt G Compute and enter the calibration mainframe flatness deviation Column E Column F 3 51 5820A Service Manual 3 52 3 48 lt 600 MHz Leveled Sine Harmonic Verification This procedure uses the following equipment e Hewlett Packard 8590A or better Spectrum Analyzer e BNC f to Type N m adapter e N to BNC cable supplied with the Scope Calibrator See Figure 3 7 for the proper equipment connections HP 8590A or equivalant SOURCE MEASURE BNC F to Type N M Adapter yu059f eps Figure 3 7 Setup for Leveled Sine Wave Harmonics Verification Set the Calibrator Mainframe to the Levsine menu Follow these steps to verify the leveled sine wave harmonics 1 Using the N to BNC cable and BNC f to Type N m adapter connect the CHAN 1 connector on the Calibrator Mainframe to the HP 8590A 2 Program the Calibrator Mainframe to 5 5 V p p at each frequency listed in Table 3 22 Press on the Calibrator Mainframe to activate the output 3 Set HP 8590A start frequency to the Calibrator Mainframe output frequency Set HP 8590A stop frequency to 10 times the Calibrator Mainframe output frequency Set the HP 8590A reference level at 19 dBm 4 Record the harmonic level reading for each frequency and harmonic listed in Table 3
80. eee eee 3 36 3 20 Low Frequency Flatness Verification sese eee ee 3 38 3 21 High Frequency Flatness VYerihcation sese eee 3 43 3 22 Leveled Sine Wave Harmonics Verification ee eee ee 3 53 3 23 Marker Generator Verification sees eee eee 3 54 3 24 Wave Generator Verification at 1 MG 3 56 3 25 Wave Generator Verification at 50 L eee 3 57 3 26 Pulse Generator Verification Pulse Wid 3 59 O PUSE SKEW O ON 3 61 3 28 Pulse Generator Verification Pernod sese eee 3 61 3 29 MeasZ Resistance Verification see eee 3 62 3 30 MeasZ Capacitance Verification sese eee 3 63 Al Replacement FUSE vada bevowecausdaassivaesesseng spat T area ARLETE asd S 4 3 5 1 Fast Edge Specifications TT 5 3 5 2 Leveled Sine Wave Specifications gt 600 MHZ 5 4 5 3 Time Marker Specifications see eee eee eee 5 5 5 4 Leveled Sine Wave Frequency Verification Channels 1 2 and 5 5 11 5820A Service Manual 5 5 Fast Edge Rise Time for Channels 1 2 and 5 5 11 5 6 Leveled Sine Wave Harmonics Verification Channels 1 2 and 5 5 12 5 7 GHz Leveled Sinewave Verification Flatness Channels 1 2 and 5 5 14 5 8 Leveled Sine Flatness 5 5 V Channel 21 5 21 5 9 Leveled Sine Flatness 5 5 V Channel 31 sese 5 22 5 10 Leveled Sine Flatness 5 5 V Channel n 5 22 5 11 Leveled Sine Flatness 5 5 V Channel 51 5 23 5 12 Pulse Wii A tri 5 23 5 13 Edge Rise Time Channel
81. enter the power meter s reading in Column B of Table 3 21 6 Repeat steps 4 and 5 for all of frequencies listed in Table 3 21 Continue until you have completed Columns A and B 7 When you have completed Columns A and B press to remove the Calibrator Mainframe s output Complete Table 3 21 by performing the calculations for each column Compare Column G to the specifications listed in the final column 3 42 Calibration and Verification 3 Verification Table 3 21 High Frequency Flatness Verification Calibrator Calibrator i C Mainframe Freq Flatness MHz Spec com some mr o sa E _ IS IO EL 300 MHz Complete Columns A G as follows Enter the 437B present frequency Reading Watts Enter the 437B 10 MHz Reading Watts Apply power sensor correction factor for present frequency Watts CF Column A entry Apply power sensor correction factor for 10 MHz Watts CF Column B entry Compute and enter Error relative to 10 MHz 100 sqrt Column C Column D entry 1 Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example T m D OD gt 9 Compute and enter the calibration mainframe flatness deviation Column E Column F 3 43 5820A Service Manual Table 3 21 High Frequency Flatness Verification cont Calibrator Calibrator i C Mainframe Freq Flatness MHz pec ms som
82. eon topline EC 001 a poo 000105 aberration 3 acvh baseline 0 001 1000 0 000105 aberration ENE offset 130 1000 0 32504 ao a E st 065005 san topline 130 1000 0 6501 aberration acvh baseline 1000 0 6501 aberration SS Pofset 1801000 0 ossos e eon E O A acvh topline 130 1000 0 6501 aberration acvh baseline 130 1000 0 6501 aberration Table 5 25 Edge Amplitude Measured Spec Channel Measurement Amplitude S Value Deviation Vp p edge topline aberr 2 5 10 Loe 0 0145 15 ns 5 27 5820A Service Manual 5 28 5 20 Channel 4 DMM Input Table 5 26 Levsine Amplitude Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p ra eene emmae Jos sooo Tomos Table 5 27 DC Voltage 50 Q o pts amen SY ers ae Channel Amplitude Value Deviation Spec V a ss a fam Joo FS E ooo ao fam 007 O oo os a fon Jv J o os a om fev o O IN Table 5 28 AC Voltage 50 Q Measured Spec TE Measurement Amplitude Frequency E Vp p acvh 0 001 1000 0 0000425 a amplitude 0 001 a 0 0000055 eon topline oo 001 1000 0 000105 aberration acvh baseline 0 001 1000 0 000105 aberration ja offset 0 001 001 1000 0 0000425 oo as 0055 0 0000055 acvh topline 0 001 1000 0 000105 aberration acvh baseline 0 001 1000 0 000105 aberration offset 1000 0 32504 acvh IC 0 0 065005 065005 acvh t
83. eration 2 7 M MeasZ Capacitance Verification 3 56 MeasZ function Calibration 3 16 MeasZ Resistance Verification 3 55 Q options 5820 5 option 5 channel option 5 3 Ghz option specifications 5 3 verification tables for 5 11 Oscilloscope input capacitance specifications 1 13 Oscilloscope input resistance specifications 1 13 Overload function Verification 3 57 Overload measurement specifications 1 14 P Pulse generator specifications 1 12 Pulse period verification 3 55 Pulse Width function Calibration 3 15 equipment setup 3 16 Verification equipment setup 3 53 Pulse width verification 3 53 R Replacing the line fuse 4 3 S Scope Calibrator Verification 3 19 SCOPE CALIBRATOR Theory of Operation 2 7 Service information 4 6 Specifications 1 5 Specifications general 1 6 T theory of operation 5 Channel option 2 9 5 3 dc voltage measurement mode 2 8 GHz module 2 9 5 5 high frequency switching 2 9 input impedance mode capacitance 2 8 input impedance mode resistance 2 8 overload mode 2 9 pulse generator 2 8 trigger 2 9 wave generator mode wavgen 2 8 Time marker function specifications 1 10 5 5 Time Marker function Theory of Operation 2 7 Verification 3 48 Trigger signal edge function specifications 1 13 Trigger signal square wave voltage specifications 1 13 Trigger signal specifications 1 13 Trigger specifications 1 12
84. ero and self calibrate the power meter with the power sensor being used Refer to the Hewlett Packard 437B Operators Manual for details e PRESET e RESOLN 3 e AUTO FILTER e WATTS e SENSOR TABLE 0 default Low Frequency Verification This procedure provides an example of testing low frequency flatness using a 5 mV output Follow the same procedure for testing other amplitudes only compare results against the flatness specification listed in Table 3 20 1 Program the Calibrator Mainframe for an output of 5 mV 500 kHz Press on the Calibrator Mainframe to activate the output 2 Allow the 5790A reading to stabilize Enter the 5790A reading in Column A of Table 3 20 3 Enter 50 kHz into the Calibrator Mainframe Allow the 5790A reading to stabilize then enter the 5790A reading in Column B of Table 3 20 4 Enter the next frequency listed in Table 3 20 Allow the 5790A reading to stabilize then enter the reading into Column A of the table 5 Enter 50 kHz into the Calibrator Mainframe Allow the 5790A reading to stabilize then enter the 5790A reading in Column B of Table 3 20 6 Repeat steps 4 and 5 for all of frequencies listed in Table 3 20 Continue until you have completed Columns A and B for all amplitudes 3 37 5820A Service Manual 7 When you have completed Columns A and B press J to remove the Calibrator Mainframe s output Complete Table 3 20 by performing the calculations for column C Compare Co
85. ers extended specifications for many of the 5820A Oscilloscope Calibrator functions See the GHz Option Specifications section later in this chapter 5 4 GHz Option Specifications Inclusion of the GHz option modifies several of the Calibrator s specifications The following specification tables supersede those with the similar titles in Chapter 1 e Fast Edge Specifications e Leveled Sine Wave Specifications 600 MHz e Time Marker Specifications 5 5 Fast Edge Specifications Table 5 1 Fast Edge Specifications 1 Year Absolute Uncertainty Edge Characteristics into 50 Q teal 5 C Amplitude Range p p 250 300 mV Adjustment Range Other Edge Characteristics Frequency Range 1 1 kHz to 1 MHz 0 33 ppm of setting Rise Time lt 150 ps 0 50 ps 1 All readings are referenced to a Tek11801 with an SD26 module or a Tek820 oscilloscope with a 8 GHz bandwidth option 5 3 5820A Service Manual 5 6 Leveled Sine Wave gt 600 MHz Specifications Note To ensure applied frequencies above 600 MHz meet factory specifications the user MUST use the special 10 MHz reference that is installed in the high frequency section of the 5820A To use this reference frequency follow these instructions 1 In the Lev Sine mode press the MORE OPTIONS blue softkey The menu will change 2 Push the SET TO R 10MHz blue softkey If there is no GHz Option loaded into the 58204 then the SET TO R 10MHz menu option is not prese
86. ettings Reading Output 3 5 V p p Channel Filter Frequency Hz Table 5 5 Fast Edge Rise Time for Channels 1 2 and 5 Measured Channel Measurement Amplitude Frequency Value Deviation Spec s 5820A Service Manual Table 5 6 GHz Leveled Sine Wave Harmonics Verification Channels 1 2 and 5 PARE V p p Frequency Value dB dB dB maramo oo room E Cora ramon om oo Pensramone oo room fe Parra oo room fe Pensramone oss room fe Por mamen om ooo mommo 12 foon Sid serem 12 room fe Pensramone fos room fe oacramone as mom V fe s Pensramone 35 ezsomoe fe Par ramon os esomo M fe Pensramone os _ essomoo Sid gt oacramone as essoooseo ue Pensramone 35 esoo O um nenem os somo ue Pensramone 35 osoo O um Por mamen os rs Pensramone E um Para namone os EHH ue araram EHH um Corseramono os om fe araram fos foso V um ara namone 3s osoo M e 5 12 Options Verification Tables Table 5 6 GHz Leveled Sinewave Verification Harmonics Channels 1 2 and 5 cont em A mem a LE 8 V p p Frequency Value dB dB dB 2ngharmonie 35 1000000000 es O Srd harmonie 35 1000000000 e 2ngharmonie 35 1075000000 s O Srd hamonie 35 1075000000 e 2ngharmonie 35 1146000000 s O Srd harmonte 35 1445000000 e 2ngharmonie as 1260000000 s Sidrharmoni
87. f the warning still occurs enter a value between the displayed pulse width and the previously entered value Keep attempting this moving closer and closer to the displayed pulse width until the value is accepted Complete the pulse width calibration procedure The pulse width calibration procedure must now be repeated until all entered values are accepted the first time without warning 8 Repeat steps 5 to 7 until the Calibrator Mainframe display prompts to connect a resistor Press the STORE CONSTS blue softkey to store the new calibration constants 3 21 MeasZ Calibration The MeasZ function is calibrated using resistors and capacitors of known values The actual resistance and capacitance values are entered while they are being measure by the Calibrator Mainframe The resistors and capacitor must make a solid connection to a BNC f to enable a connection to the end of the N to BNC cable supplied with the Scope Calibrator The resistance and capacitance values must be known at this BNC f connector Fluke uses a HP 3458A DMM to make a 4 wire ohms measurement at the BNC f connector to determine the actual resistance values and an HP 4192A Impedance Analyzer at 10 MHz to determine the actual capacitance value This procedure uses the following equipment e Resistors of known values 40 Q 60 Q 600 kQ and 1 5 MQ nominal e adapters to connect resistors to BNC f connector e adapters and capacitors to achieve 5 pF 28 pF and 50 pF nomina
88. feet on bottom of unit Width 43 2 cm 17 inches standard rack width Depth 47 3 cm 18 6 inches overall 20 kg 44 pounds Absolute Uncertainty Definition The 5820A specifications include stability temperature coefficient linearity line and load regulation and the traceability of the external standards used for calibration You do not need to add anything to determine the total specification of the 5820A for the temperature range indicated Specification Confidence Interval 99 1 After long periods of storage at high humidity a drying out period with the power on of at least one week may be required 4 1 7 5820A Service Manual 1 8 Voltage Output Specifications Volt Function DC Signal Square Wave Signal D Load into 500 into 1 MO into 500 into 1 MO Amplitude Characteristics O EEC V to 130 Y Po Resolution S O Resolution 1 mV to 24 999 mV 25 mV to 109 99 mV 110 mV to 2 1999 V 2 2 V to 10 999 V 11 V to 130 V Adjustment Range Continuous on 0 25 of 0 025 of 0 25 of output 0 05 of output 1 Year Absolute Uncertainty tcal 5 C output 40 uV output 25 uV 40 uv 5 uV Typical Aberration from 50 of leading trailing edge 25 mV to 130 V within 4 us lt 0 5 of output 100 uV 10 mV to 25 mV within 8 us 1 mV to 10 mV within 14 us 1 Positive or negative zero referenced square wave 2 Above 1 kHz 0 25 of output 40 uV
89. fications lt 600 MHz Note The GHz Option offers an extended 600 MHz to 2 1 GHz Leveled Sine Wave range If the GHz Option is installed see the Leveled Sine Wave Specifications gt 600 MHz table in Chapter 8 of the 58204 Operators Manual F R Leveled Sine Wave se eal Meal h Characteristics into 50 O 50 KHz 50 KHz to 100 MHz to 300 MHz to 500 MHz to reference 100 MHz 300 MHz 500 MHz 600 MHz Amplitude Characteristics Range p p 5 mV to 5 0 V F lt 100 mV 3 digits Resolution a gt 100 mV 4 digits Adjustment Range Continuously adjustable 3 5 of output 300 uV 1 5 of E n 2 of output 3 5 of output 4 4 of output Flatness relative to 50 kHz not applicable PE 100 uV 100 uV 100 uV Short Term Amplitude Stability lt 1 Frequency Characteristics Ts 1 Year Absolute Uncertainty tcal 0 33 ppm 0 4 Hz C Distortion Characteristics Y lt 33 dBc 3 and Higher Harmonics lt 38 dBc 1 As measured near Oscilloscope bandwidth frequency 1 Year Absolute Uncertainty tcal 2 of output 300 uV 4 of output 5 5 of output 7 6 of output 300 uV 300 uV 300 uV 2 Within one hour after reference amplitude setting provided temperature varies no more than 5 C 3 Harmonics above 500 MHz are typical 4 As measured with a 1 second gate on a Fluke 6680B or equivalent 1 12 Time Marker Specifications Note If you
90. frame s CHAN 1 connector Connect the other end of the N to BNC cable to one BNC f to 3 5 mm m adapter then to the DSO s sampling head through the 3 dB attenuator 2 Using the second BNC f to 3 5 mm m adapter and N to BNC cable connect the Calibrator Mainframe s TRIG OUT connector to the 11801 s Trigger Input 3 15 5820A Service Manual 3 Set the DSO to these parameters e Main Time Base position initial 40 ns e Vertical scale 200 mV div 900 mV offset e Trigger source ext level 0 5 V ext atten x10 slope mode auto e Measurement Function positive width 4 Press the GO ON blue softkey Adjust the DSO horizontal scale and main time base position until the pulse signal spans between half and the full display If no pulse is output increase the pulse width using the Calibrator Mainframe front panel knob until a pulse is output 6 If prompted to adjust the pulse width by the Calibrator Mainframe display adjust the pulse width to as close to the displayed value as possible using the Calibrator Mainframe front panel knob then press the GO ON blue softkey 7 Allow the DSO width reading to stabilize Enter the reading via the Calibrator Mainframe front panel keypad then press ENTER Note The Calibrator Mainframe issues a warning when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the reading with the proper multiplier i e m u n p I
91. frame CHAN 1 connector to the 5790A WIDEBAND input as described under Equipment Setup for Low Frequency Flatness Follow these steps to calibrate low frequency Leveled Sine Wave flatness for the amplitude being calibrated 1 Press the GO ON blue softkey 2 Establish the 50 kHz reference e Allow the 5790A rms reading to stabilize e Press the 5790A Set Ref blue softkey Clear any previous reference by pressing the 5790A Clear Ref blue softkey prior to setting the new reference if required 3 Press the GO ON blue softkey Calibration and Verification 3 Pulse Width Calibration 4 Adjust the amplitude using the Calibrator Mainframe front panel knob until the 5790A reference deviation matches the 50 kHz reference within 1000 ppm 5 Repeat steps 1 to 4 until the Calibrator Mainframe display indicates that the reference frequency is now 10 MHz Continue with the high frequency calibration 3 19 High Frequency Calibration Connect the Calibrator Mainframe CHAN 1 connector to the power meter and power sensor as described under Equipment Setup for High Frequency Flatness Follow these steps to calibrate high frequency Leveled Sine Wave flatness for the amplitude being calibrated 1 Press the GO ON blue softkey 2 Establish the 10 MHz reference e Press the power meter SHIFT key then FREQ key and use the arrow keys to enter the power sensor s 10 MHz Cal Factor Ensure that the factor is correct then press the powe
92. icated in Table 3 29 The blue softkey under MEASURE toggles the MeasZ ranges 2 Using the N to BNC cable connect the CHAN 1 connector to the BNC f connector attached to the nominal resistance values indicated in Table 3 29 The 600 KQ nominal value can be achieved by connecting the 1 5 MQ and 1 MQ resistors in parallel 3 Allow the Calibrator Mainframe reading to stabilize then record the Calibrator Mainframe resistance reading for each nominal value listed in Table 3 29 Compare the Calibrator Mainframe resistance readings to the actual resistance values and the tolerance column of Table 3 29 Table 3 29 MeasZ Resistance Verification Calibrator Calibrator Nominal E Actual Mainframe a Mainframe x Resistance E Resistance Tolerance MeasZ Resistance Range Reading 0 04 9 0 05 Q 3 59 MeasZ Capacitance Verification The MeasZ capacitance function is verified by measuring capacitors of known values The measurement value is then compared to the capacitor actual value The capacitors must make a solid connection to a BNC f to enable a connection to the end of the N to BNC cable supplied with the Scope Calibrator Due to the small capacitance values care must be taken to know the actual capacitance at this BNC f connector The capacitance values must be determined at a 10 MHz oscillator frequency Fluke uses an HP 4192A Impedance Analyzer at 10 MHz to determine the actual capacitance values This procedure uses the follow
93. ied with the Calibrator Mainframe See Figure 3 9 for the proper equipment connections 3 63 5820A Service Manual 5820A Cable pd EXTTRIG CHAN 1 E EE 50 Q Feedthrough Termination yu061f eps Figure 3 9 Setup for Overload Function Verification Set the Calibrator Mainframe to the Overload menu Connect the N to BNC cable to the Calibrator Mainframe CHAN 1 connector Then follow these steps to verify the overload function 1 Connect the 50 Q feedthrough termination to the end of the N to BNC cable 2 Program the Calibrator Mainframe output for 5 000 V de OUT VAL blue softkey and time limit 60 s T LIMIT blue softkey 3 Press on the Calibrator Mainframe to activate the output and verify that the OPR display timer increments 4 Remove the 50 Q feedthrough termination before 60 seconds and verify that Calibrator Mainframe goes to STBY 5 Reconnect the 50 Q feedthrough termination to the end of the N to BNC cable Program the Calibrator Mainframe output for 5 000 V AC OUT VAL blue softkey 7 Press on the Calibrator Mainframe to activate the output and verify that the OPR display timer increments 8 Remove the 50 Q feedthrough termination before 60 seconds and verify that Calibrator Mainframe goes to STBY 3 64 Calibration and Verification 3 Hardware Adjustments 3 61 Hardware Adjustments 3 62 3 63 3 64 3 65 Hardware adjustments must be made to the leveled si
94. igh Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e 3 dB attenuator SMA m f e BNC f to SMA adapter 2 e N to BNC cable supplied with the Scope Calibrator 2 Put the Calibrator into standby Connect the N to BNC cable supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to one BNC f to SMA m adapter then to the DSO s sampling head through the 3 dB attenuator Using the second BNC f to SMA m adapter and N to BNC cable connect the Calibrator Mainframe s EXT TRIG channel 5 connector to the 11801 s Trigger Input On the Calibrator keypad select M985 On the display press the soft key under Pulse Press the soft key under TRIG to select the TRIG 1 External Trigger output Press JR Jon the Calibrator to activate the output Auto set the Digital Scope Then set the Digital Scope to these starting values Main Time Base position initial 2 ns div Vertical scale 200 mV div 3 58 Calibration and Verification 3 Verification Trigger source ext level 200 mV ext atten x10 slope mode auto Measurement Function positive width 1 Program the Calibrator Mainframe to output the pulse width and period at 1 5 V as listed in Table 3 26 2 Change the horizontal scale of the DSO so that you can view one positive pulse width Record the width measurement made by the DSO Compare to the toler
95. igure 2 2 A signal diagram is shown in Figure 2 3 The scope module consists of the following The A55 Main Scope Board which generates leveled sine marker capacitance measurement and trigger The A51 Voltage Video Board which generates precision de and ac low frequency square wave video overload measurement and resistance measurement The A90 Attenuator Edge Attenuator which attenuates the signal by 0 to 48 dB and generates the lt 300 ps edge The A52 Pulse Board which generates pulse generator signals 2 3 5820A Service Manual Mother Board A03 Protection Isolation Relays A V Control Power gt Front Panel Processor Board Guard Processor Board A2 A9 Direct Digital Synthesis A6 Wave Gen Function Scope Board A55 Power Board A80 UG Output gt Trigger Switch m Relay Control C1 Optional 5 Channel Matrix Single Trigger Channel Output Sense Bd Current Current Board Po Di tlet A81 cule Cc E q oO E E O 8 2 a LO Rs Chan1 Out 2 NC 3 NC 4 NC 5 Trigger Aux in Figure 2 1 Signal Diagram of Chassis yu068f eps Theory of Operation Introduction Clock From DDS A6 Ext Ref Clock Main Scope Board A55 Trigger Out Contro
96. ination then to the 5790A INPUT 2 using the BNC f to Double Banana adapter 2 Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on 3 Program the Calibrator Mainframe to output the wave type and voltage listed in Table 3 25 4 Allow the 5790A reading to stabilize then record the 5790A rms reading for each wave type and voltage in Table 3 25 5 Multiply the rms reading by the conversion factor listed to convert it to the peak to peak value 6 Multiply the peak to peak value by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Compare result to the tolerance column Table 3 25 Wave Generator Verification at 50 Q 5790A Rdg x Conversion Factor V p p Conversion Factor V p p Value Tolerance x correction V p p 0 000154 V 0 000292 V 0 000427 V 0 00043 V 0 00094 V 0 001447 V 0 00145 V 0 00244 V 0 00337 V 0 0034 V 0 0085 V square lt 0 01357 V 3 57 5820A Service Manual Table 3 25 Wave Generator Verification at 50 Q cont i 790A R Calibrator Calibrator 57904 S790A RdgX y pn value 3 Mainframe Conversion Conversion Mainframe Reading X Fact Wave Type Gaat V rms ga 10 kHz Pave soem T Tolerance ange seem range lma rense ov over Cese eov owe o CT 3 53 Pulse Width Verification The following equipment is used to verify the pulse width e H
97. ing equipment e Adapters and capacitors to achieve 5 pF 29 pF 49 pF nominal values at the end of BNC f connector e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the MeasZ menu Follow these steps to verify the MeasZ capacitance function 1 Set the Calibrator Mainframe MeasZ capacitance range to cap The blue softkey under MEASURE toggles the MeasZ ranges 3 62 Calibration and Verification 3 Verification 2 Connect the N to BNC cable to the Calibrator Mainframe CHAN 1 connector but do not connect any thing to the end of this cable 3 Allow the Calibrator Mainframe reading to stabilize then press the SET OFFSET blue softkey to zero the capacitance reading 4 Connect the end of the N to BNC cable to the BNC f connector attached to the nominal capacitor values indicated in Table3 30 5 Allow the Calibrator Mainframe reading to stabilize then record the Calibrator Mainframe capacitance reading for each nominal value listed in Table 3 30 Compare the Calibrator Mainframe capacitance readings to the actual capacitance values and the tolerance column of Table 3 30 Table 3 30 MeasZ Capacitance Verification Calibrator Nominal Mainframe Actual Capacitance s Tolerance Capacitance Value Capacitance Value Reading 0 75 pF 1 95 pF 2 95 pF 3 60 Overload Function Verification This procedure uses the following equipment e 50 Q feedthrough termination e Nto BNC cable suppl
98. l gt Voltage Bd A51 gt Pulse Bd A52 E Attenuator Bd A90 L Signal Out 5820 Scope Module Figure 2 2 Block Diagram of Scope Module yu070f eps 2 5820A Service Manual AG DDS External Clock In LF PWB I I 500 I i I Time Mark I LF Mux O I O lt O 50 msto 10 ns o I Oscilloscope Calibrator Trigger BNC nn pp 1 Trigger 1 10 100 1000 I I I I R PEA SEE a A E aos ies a te ee E EE AEE Sear Sl HF PWB Leveled Sine Wave SCOPE and Time Mark II Step Attenuator Module Output BNC 10 ns to 2 ns HEM i Unleveled ux l a Leveled La Ei o BFOpp Detect i S 1 Pwr Amp HF Mux l Leveling Loop i ore Edge A Level i 10 MHz Clock A55 Main Scope Board J Figure 2 3 Signal Diagram of Scope Module aag031f eps 2 2 2 3 2 4 2 5 Theory of Operation a Introduction Other than the scope module the A81 Current Board the A6 Direct Digital Synthesis Board and the A3 Mother Board provide the other functions in the 5820A Digital controls are provided by the 5520A 4002 for the front panel display and by 5520A 4009 Out Guard CPU on the rear panel for all external and internal communication The A6 provides low frequency marker frequencies the wave generator functions and also contains the acquisition circuitry used in the dc voltage measurement In addition the main voltage reference signal
99. l value at the end of BNC f connector e Nto BNC cable supplied with the Scope Calibrator Calibration and Verification 3 MeasZ Calibration SOURCE MEASURE CHAN2 MAX CHAN 4 CHAN 4 EXT TRIG CHAN 5 yu056f eps Figure 3 4 Setup for MeasZ Calibration Set the Calibrator Mainframe in Scope Cal mode at the prompt to connect a 40 Q resistor Then follow these steps to calibrate MeasZ 1 Connect the N to BNC cable to the SCOPE connector Connect the other end of the N to BNC cable to the BNC f connector attached to the 40 Q resistance Refer to Figure 3 4 for the proper equipment connections Press the GO ON blue softkey Enter the actual 40 2 resistance When prompted by the Calibrator Mainframe disconnect the 40 Q resistance and connect the 60 Q resistance 5 Press the GO ON blue softkey 6 Enter the actual 60 resistance AWN Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the actual resistance insuring proper multiplier i e m u n p If the warning still occurs repair may be necessary 7 When prompted by the Calibrator Mainframe disconnect the 60 Q resistance and connect the 0 6 MQ resistance to the end of the N to BNC cable 8 Press the GO ON blue softkey 9 Enter 0 6 MQ resistance 10 When prompted by the Calibrator Mainframe disconnect the 0 6 MQ resistance and connect the 1 5 MQ resi
100. le 3 15 Edge Frequency Verification Calibrator Mainframe Frequency Output 2 5 V p p PM 6680 Reading Frequency Tolerance T O ETC INICIOS IO IES DUETO O EAT T IO ATI 3 38 Edge Duty Cycle Verification This procedure uses the following equipment e PM 6680 Frequency Counter e N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Edge menu Press J on the Calibrator Mainframe to activate the output Then follow these steps to verify Edge duty cycle 1 Set the PM 6680 s FUNCTION to measure duty cycle on channel A with auto trigger measurement time set to 1 second or longer 50 Q impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A Program the Calibrator Mainframe to output 2 5 V at 1 MHz 4 Allow the PM 6680 reading to stabilize Compare the duty cycle reading to 50 5 3 39 Edge Rise Time Verification This procedure tests the edge function s rise time Aberrations are also checked with the Tektronix 11801 oscilloscope and SD 22 26 sampling head The following equipment is used to verify the edge rise time e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e 3 dB attenuator 3 5 mm m f e BNC f to 3 5 mm m adapter 2 e N to BNC cable supplied with the Scope Calibrator e second N to BNC cable Connect the N to BNC cable
101. lerance V dc Output ANCIANO IE EEE NT T Cid SSS EOS esw asse eow sas som MTS DE asw IS SSS Dome 00002 os Onda EC IE EE TT VAN TU TVN EV IESO EE VTA T IO EE TA TT Cd IES tv esv MVT VAN T IS EE MOT VAN 3 22 3 28 3 29 Calibration and Verification 3 Verification AC Voltage Amplitude Verification This procedure uses the following equipment Hewlett Packard 3458A Digital Multimeter BNC f to Double Banana adapter 50 Q feedthrough termination N to BNC cable supplied with the Scope Calibrator N to BNC cable to connect the Calibrator Mainframe TRIG OUT to the HP 3458A Ext Trig Set the Calibrator Mainframe to the Volt menu Follow these steps to verify the ac voltage function Verification at 1 MQ For the 1 MQ verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable supplied with the Calibrator Mainframe and the BNC f to Double Banana adapter Connect the Calibrator Mainframe TRIG OUT connector to the HP 3458A Ext Trig connector located on the rear of that instrument Make sure the Calibrator Mainframe impedance is set to 1 MQ The blue softkey under Output toggles the impedance between 50 Q and 1 MQ 1 When making measurements at 1 kHz set the HP 3458A to DCV NPLC 01 TRIG EXT and the DELAY to 0007 for measuring the topline of the wave form and the DELAY to 0012 for measuring the baseline of the wave for
102. litude from the porch to the top of the edge is 250 mV 5 10 GHz Leveled Sine Wave Frequency Verification This procedure uses the following equipment e PM 6680 Frequency Counter with a prescaler for the Channel C input Option PM 9621 PM 9624 or PM 9625 and ovenized timebase Option PM 9690 or PM 9691 e BNC f to Type N m adapter 5 9 5820A Service Manual 5 11 e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Levsine menu Follow these steps to verify the leveled sine wave amplitude 1 Set the PM 6680 s FUNCTION to measure frequency with auto trigger measurement time set to 1 second or longer and 50 Q impedance 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the PM 6680 at the channel indicated in Table 5 4 You will need the BNC N adapter for the connection to Channel C Set the filter on the PM 6680 as indicated in the table 4 Program the Calibrator Mainframe to output as listed in Table 5 4 Press on the Calibrator Mainframe to activate the output 5 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed in Table 5 4 GHz Leveled Sine Wave Harmonics Verification This procedure uses the following equipment e Hewlett Packard 8592L Spectrum Analyzer e BNC f to Type N m adapter e N to BNC cable supplied with the Scope Calibrator See Figure 5 7 for the proper connections
103. lter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A 3 Program the Calibrator Mainframe to output the pulse width and period at 1 5 V as listed in Table 3 28 4 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each period listed for the Calibrator Mainframe Table 3 28 Pulse Generator Verification Period Nominal Value a e C Measured el 1 Year Spec EE p p Value CER s 50x10 200x10 66x10 3 58 MeasZ Resistance Verification The MeasZ resistance function is verified by measuring resistors of known values The measurement value is then compared to the resistor actual value The resistors must make a solid connection to a BNC f to enable a connection to the end of the N to BNC cable supplied with the Scope Calibrator The resistance values must be known at this BNC f connector Fluke uses an HP 3458A DMM to make a 4 wire ohms measurement at the BNC f connector to determine the actual resistance values This procedure uses the following equipment e Resistors of known values 1 5 MQ 1 MQ 60 Q 50 Q 40 Q nominal 3 61 5820A Service Manual e adapters to connect resistors to BNC f connector e N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the MeasZ menu Follow these steps to verify the MeasZ resistance function 1 Set the Calibrator Mainframe MeasZ resistance range as ind
104. lumn C to the specifications listed in the final column Table 3 20 Low Frequency Flatness Verification B 50 kHz Flatness Frequency flatness offset as of input Input Amplitude 0 005 V Complete Columns A C as follows A Enter 5790A Reading mV for the present frequency B Enter 5790A Reading mV for 50 kHz C Compute and enter the Calibrator Mainframe Flatness Deviation 100 Column A entry Column B entry Column B entry Input Amplitude 0 075 V Input Amplitude 0 0099V 3 38 Calibration and Verification 3 Verification Table 3 20 Low Frequency Flatness Verification cont F B c Flatness dd 50 kHz flatness offset as of input Input Amplitude 0 01 V Input Amplitude 0 025 V Input Amplitude 0 039V Input Amplitude 0 04V Input Amplitude 0 07V 3 39 5820A Service Manual Table 3 20 Low Frequency Flatness Verification cont Fr a B c Flatness S 50 kHz flatness offset as of input Input Amplitude 0 099V Input Amplitude 0 1V Input Amplitude 0 25V Input Amplitude 0 399V Input Amplitude 0 4V 3 40 Frequency Input Amplitude 0 8V mn T Cwe oo ome T me T owm T Input Amplitude 1 2V mn T ET m T m T owm T Input Amplitude 1 3V mn T Cwe o ome T ms T owm T Input Amplitude 3 4V mn T Cwe oo eme T me T ans T Input Amplitude 5 5V mn T Cwe o owe T me T an T B 50 kHz flatness offset as of input 1
105. m Manually lock the HP 3458A to the range that gives the most resolution for the topline measurements Use this same range for the corresponding baseline measurements at each step Enable the Calibrator Mainframe external trigger by toggling the blue softkey under TRIG to 1 Measure the topline first as indicated in Table 3 7 For each measurement take samples for at least two seconds using the HP 3458A MATH functions to determine the average or mean value Measure the baseline of each output after the corresponding topline measurement as indicated in Table 3 7 The peak to peak value is the difference between the topline and baseline measurements Compare the result to the tolerance column When making measurements at the other frequencies set up the HP 3458A NPLC and topline and baseline DELAY per Table 3 2 3 23 5820A Service Manual Table 3 7 AC Voltage Amplitude Verification V p p Hz p p te _ p S E p p 55w Co O AA 0025 100 BWN 0 098 100 o BWN pon 100 con O pon 000 con 05 100 RN os tw ___ ______ _ css l 22 100 tv 22 000 o amy A A AAA O ee Pott o mv tao too mv mM rr A eee eee 3 30 Verification at 50 2 For the 50 Q verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable supplied with the Calibrator Mainframe the external 50 Q termination and the BNC f to Double Banana adapter The 50 Q
106. me flatness deviation Column E Column F 3 47 5820A Service Manual Table 3 21 High Frequency Flatness Verification cont Calibrator Mainframe ae Complete Columns A G as follows A Enter the 437B present frequency Reading W B Enter the 437B 10 MHz Reading W C Apply power sensor Correction factor for present deta W CF Column A entry D Apply power sensor correction factor for 10 MHz W CF Column B entry E Compute and enter Error relative to10 MHz 100 SEO C Column D entry 1 F Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an example G Compute and enter the calibration mainframe flatness deviation Column E Column F 3 48 Calibration and Verification 3 Verification Table 3 21 High Frequency Flatness Verification cont Calibrator Calibrator i Mainframe Freq Flatness MHz Spec come o EZ 100 MHz ca E O VE E ve 150 MHz Etica ca 250 MHz Complete Columns A G as follows Enter the 437B present frequency Reading W Enter the 437B 10 MHz Reading W Apply power sensor correction factor for present deta W CF Column A entry Apply power sensor correction factor for 10 MHz W CF Column B entry Compute and enter Error relative to10 MHz 100 SEO C Column D entry 1 Enter 10 MHz Error for the amplitude tested use column C from table 3 20 for 5 5 V as an
107. nction Pulse Period Amplitude into 50 O p p Typical Rise Time 20 ms to 200 ns EIS Skew between Pulse and Trigger programmable from 10 ns to 30 ns 5820A Service Manual 1 16 Trigger Signal Specifications Time Marker Function Time Marker Period Amplitude into 50 O p p Typical Rise Time 551035 ms 34 9 ms to 75018 SO GT BE 5 off100 1 17 Trigger Signal Specifications Edge Function ypical Amplitude intoj Typical Rise Time Typical Lead Time Edge Signal Frequenc Division Ratio soi Division Ratio 50 0 p p Tezo 10 MHz 1 18 Trigger Signal Specifications Square Wave Voltage Function AC Voltage Frequency Division Ratio Pico Amplitude into Typical Rise Time Typical Lead Time 1 19 Trigger Signal Specifications TV Adjustable 0 to 1 5 V p p into 50 ohm load 7 accuracy 1 20 Tunnel Diode Drive Capability TD Pulse Drive Square wave at 100 Hz to 100 kHz with variable amplitude of 60 V to 100 V p p 1 21 Oscilloscope Input Resistance Measurement Specifications Scope Input Selected Measurement Range 40 N to 60 O 500 KO to 1 5 MO TE 1 22 Oscilloscope Input Capacitance Measurement Specifications Scope Input Selected Measurement Range 5 pF to 50 pF Uncertainty 5 of input 0 5 pF 1 Measurement made within 30 minutes of capacitance zero reference 1 23 Overload Measurement Specifications The Overload test function applies for de or ac 1 kH
108. nd 2 5 V outputs Calibration and Verification 3 Hardware Adjustments 1st Aberration 2nd Aberration 3rd Aberration om050f eps Figure 3 12 Adjusting Edge Aberrations 3 69 5820A Service Manual 3 70 1 NA T 1 e hahahahaha Introduction sss esse eee Replacing the Line Fuse Cleaning the Air Filter General Cleaning sse eee eee Service Information Clock Freduency sse sese 50 O Resistance Measurement Chapter 4 Maintenance 4 1 5820A Service Manual 4 2 4 1 4 2 Maintenance 4 Introduction Introduction This chapter explains how to perform routine maintenance to keep a normally operating 5820A Calibrator in service These tasks include e Replacing the fuse e Cleaning the air filter e Cleaning the external surfaces Replacing the Line Fuse The line power fuse is accessible on the rear panel The fuse rating label above the ac power input module shows the correct replacement fuse for each line voltage setting Table 4 1 lists the fuse part numbers for each line voltage setting To check or replace the fuse refer to Figure 4 1 and proceed as follows 1 Disconnect line power 2 The line power fuse and line voltage switch are located in a compartment on the right end of the ac input module To open the compartment and remove the fuse insert the blade of a standard screwdriver to the left of the tab lo
109. ne and edge functions each time the 5820A is repaired In addition to the adjustment procedures this section provides lists of the required equipment and some recommendations on models that have the capabilities required by these procedures Equivalent models can be substituted if necessary Equipment Required The following equipment is necessary for performing the hardware adjustments described in this section The models listed are recommended for providing accurate results e Standard adjustment tool for adjusting the pots and trimmer caps e Extender Card e Oscilloscope Mainframe and Sampling Head Tektronix 11801 with SD 22 26 or Tektronix TDS 820 with 8 GHz bandwidth e 10 dB Attenuator Weinschel 9 10 SMA or Weinschel 18W 10 or equivalent e Cable provided with 5820A e Spectrum Analyzer Hewlett Packard 8590A Adjusting the Leveled Sine Wave Function There are two adjustment procedures that need to be made for the leveled sine wave function The first procedure adjusts the balance out of the LO VCO so that the signal is balanced between the two VCOs The second procedure adjusts the harmonics Equipment Setup This procedure uses the spectrum analyzer Before you begin this procedure verify that the Calibrator Mainframe is in leveled sine wave mode the Levsine menu is displayed and program it to output 5 5 V p p 600 MHz Press to activate the output Refer to Figure 3 7 for setup connections and connect the Calibrator
110. nt Table 5 2 Leveled Sine Wave Specifications gt 600 MHz Leveled Sine Wave Frequency Range Characteristics into 10 MHz 600 MHz to 50 Q reference 1 1 GHz Amplitude Characteristics Range p p 5 mV to 3 5 V Resolution lt 100 mV 3 digits gt 100 mV 4 digits Adjustment Range continuously adjustable 1 Year Absolute 2 of output 7 of output 7 of output 8 of output Uncertainty tcal 5 C 300 uV 300 uV 300 uV 300 uV Flatness not 5 of output 5 of output 6 of output relative to 10 MHz 1 applicable 100 uV 100 pV 100 uV Short term Amplitude lt 1 2 Stability Frequency Characteristics Resolution 100 kHz 1 Year Absolute Uncertainty tcal 5 C Distortion Characteristics 2nd Harmonic 3rd and Higher Harmonics 1 As measured near Oscilloscope bandwidth frequency 2 Within one hour after reference amplitude setting provided temperature varies no more than 5 C Options 5 GHz Module 5 7 Time Marker Specifications Table 5 3 Time Marker Specifications Time Marker into 50 Q 2ns to 500 ps Wave Shape sine Typical Output Level gt 1V p p Typical Jitter p p lt 1 ppm Sequence 5 2 1 from 5 s to 2 ns e g 500 ms 200 ms 100 ms Period Resolution 4 digits 1 Year Absolute Uncertainty tcal 5 C 0 33 ppm 5 8 Theory of Operation The GHz Module consists of two portions the A93 Main Board and the A92 Piggy Board A93 contain
111. ona 3288 BNC f to Type N m N to BNC supplied with Scope Cable Calibrator Wave Generator Verification AC Fluke 5790A Range 1 8 mV p p to 55 V p p Measurement Standard 10 Hz to 100 kHz Pomona 1269 BNC f to Double Banana FTeminaion __ Feeathrough 50 0 1 N to BNC supplied with Scope Cable Calibrator 5820A Service Manual 3 6 3 3 3 4 3 5 3 6 Calibration Setup The procedures in this manual have been developed to provide users the ability to calibrate the Scope Calibrator at their own site if they are required to do so It is strongly recommended that if possible you return your unit to Fluke for calibration and verification The hardware adjustments are intended to be one time adjustments performed in the factory however adjustment may be required after repair Hardware adjustments must be performed prior to calibration Calibration must be performed after any hardware adjustments See Hardware Adjustments in this chapter The AC Voltage function is dependent on the DC Voltage function Calibration of the AC Voltage function is required after the de voltage is calibrated The Calibrator Mainframe must complete a warm up period prior to calibration to allow internal components to thermally stabilize The Calibrator Mainframe warm up period is at least twice the length of time the calibrator was powered off up to a maximum of 30 minutes The Scope Calibrator is enabled by pressing the Opera
112. opline 6 KLANN a ee 6501 aberration acvh baseline 6V 1000 0 6501 aberration gt gt Cs fev io os a feon H foo H acvh topline 6V 1000 0 6501 aberration acvh baseline 6V 1000 0 6501 aberration Options Verification Tables for Channels 2 5 Table 5 29 Edge Amplitude Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p 4 edge amplitude 25 tokHz 0002 4 edge topline aberr 2 5 10 kHz 0 0145 15 ns 5 21 Channel 5 DMM Input Table 5 30 Levsine Amplitude Spec EEE Amplitude Measured Value Vp p 5 levsine amplitude 55 50000 ossos Table 5 31 DC Voltage 1 MQ ca e acao SES oa am Channel Amplitude Value Deviation Spec V 5 Tam Jo es 5 dem 001 000002525 5 dm os ET 5 fon o as 5 im 50 o o O ses Table 5 32 AC Voltage 1 MQ Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p 5 sm potser ooo Jim 1 0 000026 feon emp ude oot 1000 000000855 acvh topline 0 001 1000 0 000105 aberration acvh baseline 0 001 1000 0 000105 aberration ooma Ps cw Y ena nor ro 000005 acvh topline 0 001 1000 0 000105 aberration acvh baseline 0 001 1000 0 000105 aberration o po Tosa 5 aew aa o tr o oo acvh topline 130 1000 0 6501 aberration acvh baseline 1000 0 6501 aberration Tosa 5 cw ena 0 cos
113. or twice the time the 5820A has been turned off For example ifthe 5820A has been turned off for 5 minutes the warm up period is 10 minutes All specifications apply for the temperature and time period indicated For temperatures outside of tcal 5 C tcal is the ambient temperature when the 5820A was calibrated the temperature coefficient is less than 0 1 times the 1 year specification per C limited to 0 C 50 C If you ordered the GHz Option the following specification tables are supplemented by the tables with similar headings in Chapter 5 e Edge Specifications e Leveled Sine Wave Specifications Refer to Figure 1 2 for the dimensional outline of the 5820A Calibrator 4 5820A Service Manual 43 2 cm 17 in _ SOURCEMEASURE SO e PREV ese umd MENU LI JE Da OE E Mw SP cHana MAK 1 E omi JOHO e JE BE 20V PK MAX grd i 8 e A se M0 47 0 cm 18 5 in 6 4 cm 2 5 in For Cable Access Figure 1 2 5820A Calibrator Dimensional Outline 1 6 yh003f eps Introduction and Specifications Specifications 1 7 General Specifications Warmup Time Twice the time since last warmed up to a maximum of 30 minutes Settling Time 5 seconds or faster for all functions and ranges St
114. ordered the GHz Option the following specification table is superseded by the table with the same heading in Chapter 8 of the 5820A Operators Manual Time Marker into 50 0 5sto50ms 20 ms to 100 ns 50 ns to 20 ns 10ns 5nsto2ns E Spike Square or F Wave Shape Spike or Square 20 pulse Spike or Square 5 2 1 from 5 s to 2 ns e g 500 ms 200 ms 100 ms At least 10 around each sequence value indicated above Amplitude Resolution 4 digits 1 Year Absolute Uncertainty teal 5 C H 2 5 ppm 5 uHz 2 0 33 ppm 0 33 ppm 0 33 ppm 0 33 ppm Time marker uncertainty is 50 ppm when measured off of cardinal points 5s 2s 1s 500 ms 200 ms 100 ms 50 ms 20 ms 10 ms 5 ms 2 ms 1 ms 500 us 200 us 100 us 50 us 20 us 10 us 5 us 2 us 1 us 500 ns 200 ns 100 ns 50 ns 20 ns 10 ns 5 ns and 2 ns As an example a 5s 0 2 Hz marker would have an uncertainty of 0 2 Hz 2 5 ppm 5 uHz 5 5 uHz The valid values are 0 2000055 to 0 1999945 Hz or 4 9998625 s to 5 0001375 s Introduction and Specifications 1 Specifications 1 13 Wave Generator Specifications Wave Generator Characteristics Square Wave and Sine Wave into Triangle Wave into 50 O or 1 MO 50 Q or 1 MO Amplitude ande into 1 MO 1 8 mV to 55 V p p into 1 MO 1 8 mV to 55 V p p a into 50 Q 1 8 mV to 2 5 V p p into 50 O 1 8 mV to 2 5 V p p 1 Year Absolute Uncertainty tcal 5 C 10 Hz to 10 kHz 3 of p p output 100 uV
115. ough 50 Q 1 used with Edge Amplitude Calibration and AC Voltage Verification N to BNC Cable supplied with Scope Calibrator Edge Rise Time and Aberrations Verification High Frequency Tektronix 11801 with Frequency 8 to 20 GHz Digital Storage Tektronix SD 22 26 Oscilloscope sampling head or Tektronix TDS 820 with 8 GHz bandwidth 1 Resolution 4 5 mV to 2 75 V Attenuator Weinschel 9 10 SMA 10 dB SMA m f or Weinschel Tae 10 or equivalent Adapter BNC f to SMA m N to BNC Cable supplied with Scope Calibrator DC and AC Voltage Calibration and Verification DC Voltage Verification Digital HP 3458A Multimeter Adapter Pomona 1269 BNC f to Double Banana Plug Termination Do O Feedthrough 50 Q 1 N to BNC Cable supplied with Scope Calibrator 1 Note that Fluke Met Cal certified procedures use the Tek 11801 scope 5820A Service Manual Table 3 1 Scope Calibrator Calibration and Verification Equipment cont Current Calibration AC DC Current Verification Minimum Use Specifications Instrument Model Digital HP 3458A Voltage 1 mV to 2 Vp p Uncertainty 0 06 Multimeter Adapter Pomona 1269 BNC f to Double Banana Plug 1 Q Resistor User Supplied Measured to 0 05 125 mW including banana jack Assembly mounting 10 Q Resistor User Supplied Measured to 0 05 250 mW including banana jack Assembly mounting 100 Q Resistor User Supplied Measured to 0 05 125 mW including banan
116. put and trigger Set the DSO vertical to 10 mV div and horizontal to 10 ns div Next set the signal edge against the left side of the DSO display Mentally note the signal amplitude 90 ns from the edge use this point as the reference level It maybe helpful to set the DSO to average 4 per reading Now set the DSO to 1 ns div and look at the first 10 ns of the edge signal with the rising edge at the left edge of the DSO display With the vertical setting each line on the DSO represents a 1 i e 10 mV of aberration Determine that the Scope Calibrator falls within the typical specifications shown in Table 3 17 For time greater than 10 ns set the DSO to 10 ns div Verify the aberrations are within specification Table 3 17 Edge Aberrations Time from 50 of Rising Edge Typical Edge Aberrations 3 41 Calibration and Verification 3 Verification Tunnel Diode Pulser Drive Amplitude Verification This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC f to Double Banana adapter e N to BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to Edge Proceed with the following steps 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana adapter 2 Activate the TD Pulser output by pushing the TDPULSE blue softkey The output should now be at 80 V peak to peak 100 kHz STANDBY 3 Set the
117. quivalent e HP 8481D Power Sensor e HP 8482A Power Sensor e N female to BNC female adapter e Nto BNC cable supplied with the Scope Calibrator Select the NEXT SECTION blue softkey until the display reads Set up to measure leveled sine amplitude Then follow these steps to calibrate Leveled Sine Wave amplitude 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to the 50 Q feedthrough termination then to the 5790A INPUT 2 using the BNC f to Double Banana adapter Refer to Figure 3 3 for the proper equipment connections 2 Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on Press the GO ON blue softkey 4 Press to activate operating mode on the Calibrator Mainframe Allow the 5790A rms reading to stabilize Multiply the 5790A reading by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Enter the corrected rms reading via the Calibrator Mainframe front panel keypad then press ENTER Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and calculation and carefully re enter the corrected rms reading insuring proper multiplier i e m u n p If the warning still occurs repair may be necessary 3 13 5820A Service Manual 6 Repeat step 5 until the Calibrator Mainframe
118. r meter ENTER key e Allow the power meter reading to stabilize e Press the Power meter REL key 3 Press the GO ON blue softkey 4 Press the power meter SHIFT key then FREQ key and use the arrow keys to enter the power sensor s Cal Factor for the frequency displayed on the Calibrator Mainframe Ensure that the factor is correct then press the power meter ENTER key 5 Adjust the amplitude using the Calibrator Mainframe front panel knob until the power sensor reading matches the 10 MHz reference within 0 1 6 Repeat steps 1 to 5 until the Calibrator Mainframe display indicates that either the reference frequency is now 50 kHz or that the next steps calibrate pulse width Repeat the low frequency calibration procedure for the next amplitude unless the Calibrator Mainframe display indicates that the next steps calibrate pulse width Press the STORE CONSTS blue softkey to store the new calibration constants 3 20 Pulse Width Calibration This procedure uses the following equipment e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e 3 dB attenuator 3 5 mm m f e BNC f to 3 5 mm m adapter 2 e 2 Nto BNC cables supplied with the Scope Calibrator Press the NEXT SECTION blue softkey until the display reads Set up to measure Pulse Width Then follow these steps to calibrate pulse width 1 Connect the N to BNC cable supplied with the Scope Calibrator to the Calibrator Main
119. rated from the leveled sine wave generator on ASS This signal is also split to drive the external trigger circuits If the trigger is turned on the signal is then connected to the Trig Out on the front panel The other path routes the signal to the marker circuits on A55 where the signal is shaped into the other marker waveforms The marker signals are passed from A55 to the A90 and on to the front panel high frequency switch Filters on A55 shape the signal into spike and 20 pulse The marker signal passing through A55 is connected to the A90 assembly The signal is then passed to the front panel high frequency switch Output trigger capability is available with these signals Wave Generator Mode All amplitude and frequency for the Wavegen function are generated on A6 and the signals are routed through A55 The signals are then sent to the A90 assembly where range attenuation occurs Wavegen signals are then sent to front panel high frequency switch Output trigger capability is not available with these signals Pulse Generator Pulse Gen Pulse Generator Modes signals are derived from A52 While the maximum pulse period is 20 ms or 50 Hz the minimum is 200 ns The pulse width can be set to less than 1 ns or set as wide as 500 ns The pulse can be skewed with the output trigger so that it leads or lags the trigger in 250 ps increments Output trigger capability is available with this signal Input DC Voltage Measurement Mode The dc vol
120. re result to the tolerance column 3 27 5820A Service Manual Table 3 11 DC Current Verification Calibrator Mainframe HP 3458A Reading Tolerance mA dc output mA dc omom OOO S ooo T 0750 osom ers osom ers TT H H T H roma so oa so som omisso som omisso T ars wom O oos nom owo mnom no 5000 ma tes o soma eso 000 ma ossos soon osso 3 35 AC Current Verification The setup to measure the topline and baseline of ac current uses the HP 34584 triggered by a change in input level see Table 3 12 for HP3458A settings The trigger level is set to 1 of the DCV range with ac coupling of the trigger signal Connect the precision resistor assemblies as indicated to the banana jacks on the front panel Connect the DMM to the precision resistor Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on Use the same delays and settings used in the section AC Current Calibration Record the HP3458A readings in Table 3 13 Table 3 12 AC Measurement HP3458A Settings HP 3458A Settings Input Frequency NPLC DELAY topline DELAY baseline 3 28 Calibration and Verification 3 Verification Table 3 13 AC Current Verification Actual Topline Baseline Calculated Nominal Output Resistor Reading de BOA Current O mA Resistance Value Tolerance EmA D 0 10 mA O 1kQ 0 000750 0 10 m O 1kQ 0 000750 0 10 mA O 1kQ 0 000750 0 10 MA 1k Q 0 10 mA 1k
121. re that the equipment has had sufficient time to warm up prior to its use Refer to the operating manual for each piece of equipment for details Calibration and Verification 3 Verification Before you begin verification you may wish to review all of the procedures in advance to ensure you have the resources to complete them All of the Scope Calibrator functions are listed in Table 3 4 with the verification technique indicated Table 3 4 Verification Methods for Scope Calibrator Functions on Tana OOOO DC Voltage Procedure provided in this manual Measurement Procedure provided in this manual Edge amplitude Procedure provided in this manual Edge frequency duty Procedure provided in this manual cycle rise time Tunnel Diode Pulser Procedure provided in this manual See Voltage and Edge Calibration amplitude and Verification for details Leveled sine wave Procedures provided in this manual amplitude frequency harmonics and flatness Time marker period Procedure provided in this manual Wave generator Procedure provided in this manual amplitude Pulse width period Procedure provided in this manual MeasZ resistance Procedure provided in this manual capacitance Overload functionality Procedure provided in this manual 5820A Service Manual 3 20 3 25 3 26 wes DC Voltage Verification This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC
122. rent called the baseline is measured and stored in the Calibrator Remove the DMM direct connection and set up the DMM to measure dc volts Follow the instructions in the section Setup for Scope Calibrator Voltage AC Current Measurements above for setting up the DMM 1 Plug in the 1000 Q precision resistor into the Calibrator front panel 2 Attach the DMM to the ends of the precision resistor 3 Take voltage measurement across the resistor at 900 uA convert to mA and enter the DMM value on the Calibrator front panel 4 Press the GO ON blue softkey 5 Plug in the 100 Q precision resistor into the Calibrator front panel 3 5820A Service Manual 6 Take voltage measurement across the resistor at 9 00 mA convert to mA and enter the DMM value on the Calibrator front panel 7 Press the GO ON blue softkey Plug in the 10 Q precision resistor into the Calibrator front panel 9 Take voltage measurement across the resistor at 90 0 mA convert to mA and enter the DMM value on the Calibrator front panel 10 Press the GO ON blue softkey 11 To complete the Current calibration press the STORE CONSTS blue softkey to store the new calibration constants Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs check the setup again and carefully re enter the reading insuring proper multiplier i e m 4 n p If the warning still occurs repair may be necessary 3
123. rification eee eee eee 3 61 3 59 MeasZ Capacitance Verification sse ee eee ee 3 62 3 60 Overload Function VYen canion sse eee eee 3 63 3 61 Hardware AdjUStIMEON S ooooocococonononononnconnconnoon ccoo nono nono nono noc na cnn ran rnna nano 3 65 3 62 Equipment Required HT 3 65 3 63 Adjusting the Leveled Sine Wave Function sese 3 65 3 64 Equipment Setup se eee eee eee 3 65 3 65 Adjusting the Leveled Sine Wave VCO Balance 3 65 3 66 Adjusting the Leveled Sine Wave Harmonics sese eee e 3 66 3 67 Adjusting the Aberrations for the Edge Function 3 67 3 68 Equipment Setup se eee eee eee 3 67 3 69 Adjusting the Edge Aberration eee eee 3 68 3 2 Calibration and Verification 3 Introduction 3 1 Introduction Use this chapter as a guide to calibration and for verification of the Scope Calibrator s performance to specifications 3 2 Equipment Required for Calibration and Verification Table 3 1 lists the equipment recommended models and minimum specifications required for each calibration and verification procedure Table 3 1 Scope Calibrator Calibration and Verification Equipment Wave Generator and Edge Amplitude Calibration AC Voltage and TD Pulser Verification Minimum BEE Specifications pemen at 3458A 1 8 mV to 130 V p p Uncertainty 0 06 Multimeter 4 5 mV to 2 75 V p p Uncertainty 0 06 Adapter Pomona 1269 BNC f to Double Banana Plug Termination Feedthr
124. rmonics Adjusting the Aberrations for the Edge Function Adjustments need to be made after repair to the edge function to adjust the edge aberrations Note To verify the edge aberrations back to national standards you should send your Calibrator Mainframe to Fluke or other facility that has established traceability for aberrations Fluke for example has a reference pulse that is sent to the National Institute of Standards and Technology NIST for characterization This information is then transferred to high speed sampling heads which are used to adjust and verify the 58204 Equipment Setup The following equipment is needed for this procedure e Oscilloscope Tektronix 11801 with SD22 26 input module or Tektronix TDS 820 with 8 GHz bandwidth e 10 dB Attenuator Weinschel 9 10 SMA or Weinschel 18W 10 or equivalent e Output cable provided with the 5820A Before you begin this procedure verify that the 5820A is in the edge mode the Edge menu is displayed and program it to output 1 V p p 1 MHz Press to activate the output Refer to Figure 3 6 for the proper setup connections and connect the Calibrator Mainframe to the oscilloscope Set the oscilloscope vertical to 10 mV div and horizontal to 1 ns div Set the oscilloscope to look at the 90 point of the edge signal use this point as the reference level Set the oscilloscope to look at the first 10 ns of the edge signal with the rising edge at the left edge of the oscilloscope
125. s are generated on this board TheA3 is used to provide the routing for all control signals from the guard processor and the signal path for all low frequency signals including the voltage sense signals An auxiliary input Auxin is a feature that allows a signal to be routed from the front panel to the output port Optional features for the 5820A include 5 channel multiplexing capability and GHz extended frequency capability The 5 channel option allows the output signals to be routed to one of five output ports The GHz gigahertz option provides a 2 1 GHz leveled sine and 150 ps fast edge Information about the optional feature can be found in the Options chapter of this manual Note In the following discussion the circuit boards are generally referenced by their last two digits As an example the 58204 4055 Main Scope Board is referred to as the A55 Voltage Mode All ac and dc voltage function signals are generated from the A51 Voltage Video Board a daughter card to the A55 Main Scope Board A dc reference voltage is supplied to A51 from the A6 Direct Digital Synthesis Board this reference is used for all de and ac amplitudes All frequency signals clock are generated on the A55 The output of the A51 is passed to the A55 board which then passes through the A90 Edge Attenuator Board The signal is then passed to the front panel high frequency switch The de reference signal is used to generate both positive and negative
126. s into several of the user defined keys on its front panel For example to make topline measurements at 1 kHz you would set the DMM to NPLC 01 DELAY 0007 TRIG EXT To find the average of multiple readings you can program one of the keys to MATH OFF MATH STAT and then use the RMATH MEAN function to recall the average or mean value Note For this application if making measurements of a signal gt 1 kHz the HP 3458A has been known to have 05 to 0 1 peaking For these signals lock the HP 34584 to the 1V range 3 7 5820A Service Manual HP 3458A Front 5820A Cable A 50 Q Feedthrough Termination o J Adapter EXTTAIG CHANS HP 3458A Rear yu054f eps Figure 3 1 Setup for Scope Calibrator Voltage Square Wave Measurements 3 7 Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements The setup to measure the topline and baseline of Edge and Wave Generator signals differs slightly from the Voltage Square Wave method described above The HP 3458A is triggered by a change in input level instead of an external trigger The trigger level is set to 1 of the DCV range with ac coupling of the trigger signal The delay after the trigger event is also changed for the Edge and Wave Generator functions See Table 3 2 Refer to Figure 3 2 for the proper equipment connections Table 3 3 Edge and Wave Generator HP3458A Settings HP 3458A Settings Input Frequency
127. s sees eee ee eee 5 28 5 21 Channel 5 DMM Input sss sees eee ee eee 5 29 5 22 ETT TTT 5 30 Replaceable Parts ui td 6 1 O NO 6 3 6 2 How to Obtam Parts vicio tar acid ibi 6 3 6 3 List of Replacement Parts sese eee 6 3 List of Tables Table Title Page 3 1 Scope Calibrator Calibration and Verification Equipment sese 3 3 3 2 Voltage HP3458A Settings see eee eee 3 7 3 3 Edge and Wave Generator HP3458A Settings eres 3 8 3 4 Verification Methods for Scope Calibrator Functions sse eee 3 19 3 5 DC Voltage Verification esse sees eee eee 3 21 3 6 DC Voltage Verification at 50 Q oo sese 3 22 3 7 AC Voltage Amplitude Verification sees 3 24 3 8 AC Voltage Verification at 50Q oo eee 3 25 3 9 AC Voltage Frequency Verification sese ee eee 3 26 3 10 DC Voltage Measurement Verification cccccccescesscessceeseeeeeeeseeeseesseeeseeeseesaes 3 27 3 11 DC Voltage Verification at MG 3 28 3 12 Edge and Wave Generator HP3458A Settings eee ee 3 28 3 13 AC Current Verification 0 ccccccccccccsseessecssecsecesecesecesecsseceeeeseeeseeeeeseceseeeseeseeesaes 3 29 3 14 Edge Amplification Verification ccccccccsccssecesecesecessceeeceeeeseeeeeeeeeseesseeeeeeseeentes 3 31 3 15 Edge Frequency Verification sss eee 3 32 3 16 Edge Rise Time Verification eee 3 34 3 17 Edge Aberrations a das dais is 3 34 3 18 Tunnel Diode Pulser Verification sss sees sese eee 3 35 3 19 Leveled Sine Wave Amplitude Verification sss
128. s the power supply filtering and all of the control circuitry used to control the module This board contains the high frequency VCO used to generate leveled sine signals to 2 1 GHz The main board also routes the signals from A55 to A92 Refer to Figure 5 1 for a block diagram of the GHz Module A 10 MHz reference clock is provided by the A55 module from its internal crystal external reference circuit The reference clock is routed through the mother board to the VCO circuit on main Harmonics from the synthesized VCO circuit are removed by a switched filter system A92 contains the high frequency attenuator switching relays the fast edge circuit the leveled sine power amplifier and all of the high frequency connectors The attenuator switching relays replace the A90 board used on A55 In fact when the GHz module is installed A90 is replaced with the A91 board The A91 contains the lt 300 ps edge circuitry but does not provide any attenuation The fast edge circuit uses a tunnel diode to generate a lt 150 ps 250 mV square wave This is a single amplitude signal The period frequency is controlled by the trigger signal from A55 A special high frequency switch is used to switch between other signals and the fast edge signal The leveled sine signal is derived from A93 but the power amplifier and coupling circuits are on this board There is a high frequency switch used to select between the signals on A55 and this leveled sine signal A c
129. select the CAL MORE CAL and MEAS V CAL blue softkeys 1 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the Fluke 5520A Calibrator voltage binding posts using a BNC to banana connector 2 Set the Fluke 5520A Calibrator to 6 Vdc Operate 3 Enter the actual Fluke 5520A Calibrator output 4 When prompted by the Calibrator Mainframe set the Fluke 5520A Calibrator to 6 Vdc Operate 5 Enter the actual Fluke 5520A Calibrator output The Calibrator Mainframe will display that the calibration is complete Press the STORE CONST blue softkey to store the new calibration constants 3 11 Current Calibration These procedures use the following equipment e Hewlett Packard 3458A Digital Multimeter with cable e 100 100 Q and 1000 Q precision resistor assemblies Set the Calibrator Mainframe in CURRENT CAL mode Remove the front panel Current Loop using the 2 mm hex head driver and proceed with the following procedures 3 12 DC Current Calibration 1 Set the DMM to measure dc current 2 Connect the DMM directly to the vacant banana jacks 3 Take de current measurements at 110 uA 1 10 mA and 11 0 mA and enter the values on the Calibrator front panel 4 Press the GO ON blue softkey to proceed through the calibration points 5 Follow the procedures on the front panel until the display reads 900 uA 1000 Hz 3 13 AC Current Calibration For the ac calibration the offset from 0 mA cur
130. splay reads Set up to measure fast edge amplitude Then follow these steps to calibrate edge amplitude Calibration and Verification 3 Leveled Sine Wave Amplitude Calibration 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana 2 Set the HP 3458A to DCV NPLC 01 LEVEL 1 TRIG LEVEL and the DELAY to 0002 for measuring the upper part of the wave form i e topline and the DELAY to 0007 for measuring the lower part of the wave form i e baseline Manually lock the HP 3458A to the range that gives the most resolution for the baseline measurements Use this same range for the corresponding baseline measurements at each step Note that in the EDGE function the topline is very near 0 V and the baseline is a negative voltage 3 For each calibration step take samples for at least two seconds using the HP 3458A MATH functions to enter the average or mean value See Setup for Scope Calibrator Edge and Wave Generator Measurements for more details The true amplitude of the wave form is the difference between the topline and baseline measurements correcting for the load resistance error To make this correction multiply the readings by 0 5 50 Rload Rload where Rload actual feedthrough termination resistance 3 16 Leveled Sine Wave Amplitude Calibration This procedure uses the following equipment e HP 437A Power Meter or e
131. stance to the end of the N to BNC cable 11 Press the GO ON blue softkey Note Calibrating the capacitance for the Scope Calibrator uses 4 capacitors 0 pF 5 pF 28 pF and 50 pF Starting with 0 or no input you proceed through each capacitor entering the exact value each time 12 When prompted for the first reference capacitor by the Calibrator Mainframe disconnect the 1 5 MQ resistance and leave nothing attached to the end of the N to BNC cable 5820A Service Manual 13 Press the GO ON blue softkey 14 Enter 0 15 When prompted by the Calibrator Mainframe connect the 5 pF capacitor to the end of the N to BNC cable 16 Press the GO ON blue softkey 17 Enter the actual 5 pF capacitance value 18 When prompted by the Calibrator Mainframe disconnect the 5 pF capacitor and connect the 28 pF to the end of the N to BNC cable 19 Press the GO ON blue softkey 20 Enter the actual 28 pF capacitance value 21 When prompted by the Calibrator Mainframe disconnect the 28 pF capacitor and connect the 50 pF to the end of the N to BNC cable 22 Press the GO ON blue softkey 23 Enter the actual 50 pF capacitance 24 The Calibrator Mainframe will prompt that the calibration is complete Press the STORE CONSTS blue softkey to store the new calibration constants 3 22 Leveled Sine Wave Flatness Calibration GHz Option Leveled Sine Wave Flatness Calibration is only applicable if the 5820A has the GHz Option installed
132. supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to one BNC f to 3 5 mm m adapter then to the DSO s sampling head through the 3 dB attenuator Refer to Figure 3 6 for the proper equipment connections Using the second BNC f to 3 5 mm m adapter and N to BNC cable connect the Calibrator Mainframe s EXT TRIG channel 5 connector to the 11801 s Trigger Input 3 32 Calibration and Verification 3 Verification Tek 11801 With 5D26 Sampling Head 3 dB Attenaator 3 5 mm m f car SOURCEMEASURE EXT TRIG CHAN 1 si i QUO o EXT TRIG CHAN 5 BNC F to 3 5 mm m Adapter yu058f eps Figure 3 6 Setup for Edge Rise Time Verification The Calibrator Mainframe should have the Edge menu on the display Press on the Calibrator Mainframe to activate the output Press the softkey under TRIG to KE the TRIG 1 External Trigger output Program the Calibrator Mainframe to output 250 mV 1 kHz Set the DSO to these parameters Digital Storage Oscilloscope Setup Main Time Base position initial 40 ns Horizontal scale 500 ps div Measurement Function Rise Time 1 Program the Calibrator Mainframe to output the voltage and frequency listed in Table 3 16 Press on the Calibrator Mainframe to activate the output 2 Change the vertical scale of the DSO to the value listed in the table Adjust the main time base position and ver
133. t the porch level is centered in the display screen See Figure 5 3 5 7 5820A Service Manual yu002f eps Figure 5 3 Porch 9 Adjust R175 so that a porch waveform can be observed refer to Figure 5 3 10 Adjust the oscilloscope vertical setup to be 5 mV Div 11 Adjust R188 to make the bullet waveform shown in Figure 5 4 Its amplitude should not be less than 7 mV yu001f eps Figure 5 4 Bullet on the Porch 12 Adjust R175 to raise the porch level to the height at which fast edge is stable refer to figure 5 5 13 Use a cursor on the scope to mark this porch level Level I 14 By adjusting R175 continue to raise the porch level to the height at which the fast edge waveform is unstable 15 Use a cursor on the scope to mark this porch level Level II A typical voltage difference between Level I and Level Il is 20 mV Refer to Figure 5 6 5 8 Options 5 GHz Module Level yu003 eps Figure 5 5 Critically Triggered Edge at Porch Height Level 16 Adjust R175 to reduce the porch level setting it in the middle of Level I and Level II 17 Adjust the vertical horizontal settings of the oscilloscope so that an entire fast edge waveform can be viewed It should look like the waveform in Figure 5 2 Level II yu004f eps Figure 5 6 Critically Distorted Edge at Porch Height Level II 18 Verify that the edge rise time is lt 150 ps at the cable end and that the amp
134. tage measurement mode is provided through A6 The input signal to be measured is filtered on A3 The DCV reference signal and measuring signals are on A6 Maximum input voltage is 10 V dc Caution Input voltages above 30 V dc may cause damage to the unit Input Impedance Mode Resistance The reference resistors for input resistances are on A51 while the actual measurement takes place on A6 Input Impedance Mode Capacitance Capacitance measurement circuits are contained on A55 Signals from the leveled sine signals are used in the measurement 2 11 2 12 2 13 2 14 2 15 2 16 Theory of Operation a Introduction Current Module For the A81 Current Board A55 supplies the reference signal This signal is inverted with respect to polarity of the output current a negative voltage results in a positive current output A81 has three ranges 100 uA to 1 0999 mA 1 1 mA to 10 999 mA and 11 mA to 100 mA The board limits the compliance to 2 V Overload Mode The source voltage for the overload mode is generated on the A51 Voltage Video Board The voltage is applied to the external 50 Q load and the circuit current is monitored by A6 Trigger The A55 marker clock signal is used to generate the trigger signals There are two trigger output SMB connectors on A55 The right angle SMB should be used to route the trigger signal to the front panel The vertical connector should be used to route the trigger signal to th
135. te Standby key SE Much of the Scope Calibrator can be calibrated interactively from the front panel Enter 5820A Cal mode by pressing the front panel SETUP key CAL blue softkey and 5820A CAL blue softkey Entering the CAL mode prior to a 30 minute warmup period will cause a warning message to be displayed All equipment specified for Scope Calibrator calibration must be calibrated certified traceable if traceability is to be maintained and operating within their normal specified operating environment It is also important to ensure that the equipment has had sufficient time to warm up prior to its use Refer to the operating manuals for each piece of equipment for details Before you begin calibration you may wish to review all of the procedures in advance to ensure you have the resources to complete them The Calibrator Mainframe first prompts the user to calibrate the DC Voltage function If another function is to be calibrated alternately press the NEXT SECTION blue softkey until the desired function is reached Calibration and Verification of Square Wave Voltage Functions The Voltage Edge and Wave Generator functions have square wave voltages that need to be calibrated or verified The HP3458A digital multimeter can be programmed from either the front panel or over the remote interface to make these measurements Overview of HP3458A Operation The Hewlett Packard 3458A digital multimeter is setup as a digitizer to measure
136. termination is closest to the HP 3458A input Connect the Calibrator Mainframe TRIG OUT connector to the HP 3458A Ext Trig connector located on the rear of that instrument Make sure the Calibrator Mainframe impedance is set to 50 Q The blue softkey under Output toggles the impedance between 50 Q and 1 MQ Proceed with the following steps 1 Set the HP 3458A to DCV NPLC 01 TRIG EXT and the DELAY to 0007 for measuring the topline of the wave form and the DELAY to 0012 for measuring the baseline of the wave form Manually lock the HP 3458A to the range that gives the most resolution for the topline measurements Use this same range for the corresponding baseline measurements at each step See Table 3 8 2 Enable the Calibrator Mainframe external trigger by toggling the blue softkey under TRIG to 1 3 Measure the topline first as indicated in Table 3 8 For each measurement take samples for at least two seconds using the HP 3458A MATH functions to determine the average or mean value 4 Measure the baseline of each output after the corresponding topline measurement as indicated in Table 3 8 The peak to peak value is the difference between the topline and baseline measurements Compare the result to the tolerance column 3 24 Calibration and Verification 3 Verification Table 3 8 AC Voltage Verification at 50 Q Calibrator Mainframe HP 3458A Topline Baseline Peak to Peak Peak to Peak x Tolerance Output Range Rea
137. tical offset until the edge signal is centered on the display Record the rise time measurement in column A of Table 3 16 3 Correct the rise time measurement by accounting for the SD 22 26 sampling head s rise time The SD 22 26 rise time is specified as lt 28 ps Column B sqrt Column A SD 22 26 rise time 4 The edge rise time measured should be less than the time indicated in Table 3 16 3 33 5820A Service Manual 3 34 Table 3 16 Edge Rise Time Verification DSO Calibrator Mainframe Output Vertical B Axis Frequency mV div ee Tolerance lt 300 ps lt 300 ps lt 350 ps Reading 1 kHz 200 1 MHz 200 10 MHz 200 1 kHz 500 1 MHz 500 sd 10 MHz 500 1 kHz too 1 MHz 1000 f 10 MHz 100 f 1 kHz 2000 1 MHz 2000 10 MHz 200 f 3 40 ES L L DJ ETE DJ ETT DJ ESTE DO lt 0ops DJ lt 30ps DJ ESTE DJ lt 300ps DO ESTE DO lt 30ps Edge Aberrations The following equipment is needed for this procedure e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e N to BNC output cables provided with the Scope Calibrator 2 Before you begin this procedure verify that the Scope Calibrator is in the edge mode the Edge menu is displayed program it to output 1 V p p 1 MHz and press the soft key under TRIG to select the TRIG 1 External Trigger output Press to activate the out
138. to AUTORANGE digital filter mode to FAST restart fine and Hi Res on 3 Program the Calibrator Mainframe to output the voltage listed in Table 3 19 3 35 5820A Service Manual 4 Allow the 5790A reading to stabilize then record the 5790A s rms reading for each voltage listed in Table 3 19 5 Multiply the rms reading by the conversion factor of 2 8284 to convert it to the peak to peak value 6 Multiply the peak to peak value by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Compare result to the tolerance column Table 3 19 Leveled Sine Wave Amplitude Verification Calibrator Mainframe 5790A Reading 5790A Reading x V p p value x Tolerance Output V rms 2 8284 V p p Correction V p p 50 kHz som o Dum Do aso eow o sr woow Do soon sow moon sow em Dom ATT VE mom o ow eow msm Doom som ow ETE C ssow IES SSS Cov J o SSS tt rv i Cov J o o sam avi A EE NET VA AA as yO H T sav H H H 10 3 43 MHz Leveled Sine Wave Flatness Verification Leveled Sine Wave flatness verification is divided into two frequency bands 50 kHz to 10 MHz low frequency and gt 10 MHz to 600 MHz high frequency The equipment setups are different for each band Leveled Sine Wave flatness is measured relative to 50 kHz This is determined directly in the low frequency band The high freq
139. uency band requires a transfer measurement be made at 10 MHz to calculate a flatness relative to 50 kHz 3 44 Equipment Setup for Low Frequency Flatness All low frequency flatness procedures use the following equipment e 5790A 03 AC Measurement Standard with Wideband option e BNC f to Type N m adapter e N to BNC cable supplied with the Scope Calibrator 3 36 3 45 3 46 Calibration and Verification 3 Verification Connect the Calibrator Mainframe CHAN 1 connector to the 5790A WIDEBAND input with the BNC f to Type N m adapter Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on Equipment Setup for High Frequency Flatness All high frequency flatness procedures use the following equipment e Hewlett Packard 437B Power Meter e Hewlett Packard 8482A and 8481D Power Sensors e BNC f to Type N f adapter e N to BNC cable supplied with the Calibrator Mainframe Note When high frequencies at voltages below 63 mV p p are verified use the 8481D Power Sensor Otherwise use the 8482A Power Sensor Connect the HP 437B Power Meter to either the 8482A or the 8481D Power Sensor For more information on connecting the two instruments see the power meter and power sensor operators manuals Connect the power meter power sensor combination to the CHAN 1 connector on the Calibrator Mainframe The Hewlett Packard 437B Power Meter must be configured by setting the parameters listed below Z
140. uso Parsomo _ ro Presos fuso somo _ fuso remo _ se E 0 rasos seo isso fue iso _ fre eesoom ro eosom _ fue anse _ eso ao room s0 eooom so Presos fuso zoom _ o fuso Presos 0 ro EE _ fuso esmo ao rsrs _ o faso Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 10 MHz Reading W C NSL power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor for 10 MHz W CF Column B entry E Compute and enter error relative to 50 kHz plus floor 100 sqrt Column C Column D entry 1 100 100uV nominal voltage 5 14 Options Verification Tables Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq C Calibrator Mainframe MHz Flatness Spec somo O ETC SHH _ so BECA ff rm _ 0 Cremoso ff e remo sso remo ff _ om ff e eos EE IO A E O FO IEA O O IE o IET resmom O mom po IEC EE ff _ so Cremoso ff o po ss remo _ is CEA O ET remo ff ss Cremona ff ss isso ff ss serene ff o pos IEC ff o po ss sro ff o
141. valent frequency counter measures 10 MHz 1 0 Hz Adjustment is made on R189 on the A55 board or on U60 on the A50 board If adjustment is needed the 5820A top cover can be removed to expose an adjustment hole located on the analog cover and adjacent to the A55 circuit board tab top center right as you look from the front panel Adjustment of U60 on the 5800 should be returned to the factory since the procedure requires placing the PCB on an extender card 4 10 Maintenance Periodic Tests 50 2 Resistance Measurement Check the 50 Q resistance measurement once every two months This can be done by measuring a 50 Q 1 resistor using a calibrated DMM like the Fluke 8840A or equivalent just prior to testing it with the 5820A If the measurement is made within minutes of the DMM measurement the measurements should agree within 0 1 Only one channel needs to be measured 4 4 7 5820A Service Manual 4 8 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 5 10 5 11 5 12 5 13 5 14 5 15 5 16 5 17 5 18 5 19 5 20 5 21 5 22 O siena NON S820A 5 Option cocoooccooccoonnoonnnononannonn nono ncon cono nocnnccnnnnos GAZ Module uote lacio GHz Option Specifications Fast Edge Specihcaniong sees eee Leveled Sine Wave gt 600 MHz Specifications Time Marker Specifications sees eee eee eee Theory of Operation sss eee eee eee Fast Edge Adjustment for the GHz Module GHz Leveled Sine
142. verview of HP3458A Operation sse eee eee 3 6 Setup for Scope Calibrator Voltage Square Wave Measurements 3 6 Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements coxmsia id ita 3 8 DC Voltage Calibration sese ee eee 3 9 AC Voltage Calibration eee 3 10 DC Measurement Calibration ocooooonnnoncccnononncononanancnnnnncconannanocnnnnonoos 3 11 Current Calibracion aio dile a ae 3 11 DC Current Calibration sace E a EA 3 11 AC Current R T r TT 3 11 Wave Generator Calibration ono nenia A RANE ARA 3 12 Edge Amplitude Calibration sss sese 3 12 Leveled Sine Wave Amplitude Calibration sss sees 3 13 Leveled Sine Wave Flatness Calibration sss eee eee ee 3 14 Low Frequency Calibration sees sese eee 3 14 High Frequency Calibration ss sees eee eee 3 15 Pulse Width Calibration eiccne rri E A 3 15 Meas Calibration tdi dd cias 3 16 Leveled Sine Wave Flatness Calibration GHz Option 3 18 5820A NO PON in dt oda ne ACRE ada 3 18 NN 3 18 DC Voltage Verhcanion sees eee 3 20 Verification at MO iia ias 3 20 Verification ACA a ces ade 3 20 AC Voltage Amplitude Verification 3 23 Verification at T MO ill tii 3 23 Verification at 50 T 3 24 AC Voltage Frequency Verification eee 3 25 DC Measurement VerlfiCatiON cocoocccnnnonnnononannnonnnananononanononannnnonnnoss 3 26 Current ELEGOET aaoi ao oad ciones 3 27 DC Current VerificatiQM ococococoncnccnnnnnnnnnnnnanccnnnnnnnnanonorononanannnnnss 3
143. z square wave power into the 50 Q oscilloscope input and monitors the current The time measurement counter indicates the time duration of the applied overload signal When the input protection circuit reacts and opens the 50 O load the calibrator indication is set to off on the right hand side of the display In order to prevent front end damage to the oscilloscope a limited amount of energy is applied by a user selectable time limit Typical On current Typical Off current Typical Maximum Time Limit DC So rce Voltage Indication Indication or AC 1 kHz AC 5 V to 9 V 100 mA to 180 mA settable 5 to 60 sec 1 24 External Reference Input Specifications The External Reference Input selection allows the user to provide their own high stability 10 MHz reference clock for the 5820A for all functions except the Wave Generator function For all other modes the frequency stability is determined by the external reference stability The external reference input must be between 1 to 5 V p p Introduction and Specifications Specifications 1 25 Auxiliary Input Output Specifications The maximum input voltage for the auxiliary input is 40 V p p 1 26 Current Output Specifications Amplitude compliance voltage 2 V max 100 uA to 100 mA 100 uAp p to 100 mAp p 1 2 5 or continuous 1 Amplitude uncertainty for frequency range 45 Hz to 1 kHz at lt 120 mV compliance voltage 4 5820A Service Manual LA LA LA LA

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