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Keithley 7035, Инструкция по эксплуатации

Устройство Keithley 7035 - это удобный инструмент для проведения измерений в научных и промышленных целях. Для правильной настройки и использования, скачайте бесплатное Руководство Пользователя на manualshive.com. Используйте ключевые слова "Инструкция", "руководство", "скачать", "бесплатно".

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Table of Contents

1

General Information

Introduction .........................................................................................................................................................  1-1
Features ...............................................................................................................................................................  1-1
Warranty information..........................................................................................................................................  1-1
Manual addenda ..................................................................................................................................................  1-2
Safety symbols and terms ...................................................................................................................................  1-2
Specifications ......................................................................................................................................................  1-2
Unpacking and inspection ...................................................................................................................................  1-2

Inspection for damage .................................................................................................................................  1-2
Handling precautions  .................................................................................................................................  1-2
Shipping contents ........................................................................................................................................  1-2
Instruction manual.......................................................................................................................................  1-2

Repacking for shipment ......................................................................................................................................  1-3
Optional accessories............................................................................................................................................  1-3

2

Multiplexer Configuration

Introduction .........................................................................................................................................................  2-1
Basic multiplexer configuration..........................................................................................................................  2-1
Typical multiplexer switching schemes ..............................................................................................................  2-2

Single-ended switching ...............................................................................................................................  2-2
Differential switching .................................................................................................................................  2-2
Sensing ........................................................................................................................................................  2-3
SMU connections ........................................................................................................................................  2-3

Multiplexer expansion.........................................................................................................................................  2-4

i

Содержание 7035

Страница 1: ...cess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Dem...

Страница 2: ...Instruction Manual Contains Operating and Servicing Information Model 7035 9 Bank 1 4 Multiplexer Card 7035 901 01 Rev A 5 97...

Страница 3: ...SE THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES NEITHER KEITHLEY INSTRUMENTS INC NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT INDI RECT SPECIAL INCIDENTAL OR CONSEQU...

Страница 4: ...Model 7035 9 Bank 1 4 Multiplexer Card Instruction Manual 1997 Keithley Instruments Inc All rights reserved Cleveland Ohio U S A First Printing May 1997 Document Number 7035 901 01 Rev A...

Страница 5: ...denda associated with the previous Revision of the manual are incorporated into the new Revision of the manual Each new Revision includes a revised copy of this print history page Many product updates...

Страница 6: ...voltage is present in any un known circuit before measuring Users of this product must be protected from electric shock at all times The responsible body must ensure that users are prevented access an...

Страница 7: ...result in personal injury or death Always read the associated infor mation very carefully before performing the indicated procedure The CAUTION heading in a manual explains hazards that could damage...

Страница 8: ...N TIME 3ms ISOLATION Bank 109 25 pF Channel to Channel 109 50 pF Differential 109 100pF Common Mode 109 200pF CROSSTALK 1MHz 50 Load Bank 40dB Channel 40dB INSERTION LOSS 50 Source 50 Load 0 25dB belo...

Страница 9: ...2 Inspection for damage 1 2 Handling precautions 1 2 Shipping contents 1 2 Instruction manual 1 2 Repacking for shipment 1 3 Optional accessories 1 3 2 Multiplexer Configuration Introduction 2 1 Basi...

Страница 10: ...r wire resistance tests 4 7 Measurement considerations 4 7 Path isolation 4 7 Magnetic fields 4 8 Radio frequency interference 4 8 Ground loops 4 9 Keeping connectors clean 4 9 AC frequency response 4...

Страница 11: ...Troubleshooting equipment 5 18 Troubleshooting access 5 18 Troubleshooting procedure 5 18 6 Replaceable Parts Introduction 6 1 Parts lists 6 1 Ordering information 6 1 Factory service 6 1 Component l...

Страница 12: ...out 3 5 Figure 3 4 Model 7011 KIT R cable assembly 3 5 Figure 3 5 Typical connection scheme for Model 7035 3 7 Figure 3 6 Model 7035 card installation in Model 7001 3 8 4 Operation Figure 4 1 Model 70...

Страница 13: ...ections 5 7 Figure 5 4 Bank isolation test connections 5 8 Figure 5 5 Channel to channel isolation test connections 5 10 Figure 5 6 Differential isolation test connections 5 13 Figure 5 7 Common mode...

Страница 14: ...quipment 5 2 Table 5 2 Bank isolation test summary 5 9 Table 5 3 Channel to channel isolation test summary 5 11 Table 5 4 Differential and common mode isolation testing 5 14 Table 5 5 Recommended trou...

Страница 15: ...r card with nine independent 1 4 two pole multiplex banks Some of the key features include Low contact potential and offset current for minimal effects on low level signals High isolation resistance 1...

Страница 16: ...e anti static bag to protect it from damage due to static discharge and from contamination that could degrade its performance Before removing the card from the bag observe the following pre cautions o...

Страница 17: ...ocated at the back of this manual Optional accessories The following accessories are available for use with the Model 7035 Model 7011 MTC 2 This two meter round cable assem bly is terminated with a 96...

Страница 18: ...connections Multiplexer expansion Discusses how to configure a larger multiplexer configuration Basic multiplexer con guration A simplified schematic of the Model 7035 multiplex banks is shown in Fig...

Страница 19: ...ing In the single ended switching configuration the source or measure instrument is connected to the DUT through a single pathway as shown in Figure 2 2 The instrument is connected to the output of on...

Страница 20: ...y Model 236 237 or 238 Source Measure Unit to the multiplexer By using triax cables that are unterminated at one end the driven guard and chassis ground are physically extended all the way to the card...

Страница 21: ...gure a multiplexer as large as 1 36 Figure 2 6 Figure 2 6 Multiplexer expansion example Output A 1 4 2 2 Bank A Inputs 2 1 4 2 2 Bank B 2 1 4 2 2 Bank C 2 1 4 2 2 Bank D 2 2 2 2 2 2 1 4 2 Bank E 2 1 4...

Страница 22: ...grasp the relay card and the connector card by the side edges or shields Do not touch the board surfaces or components On connectors do not touch areas adjacent to the electrical contacts Dirt buildup...

Страница 23: ...18 Channel 19 HI HI HI HI LO LO LO LO 48 16b 49 17b 50 18b 51 19b 52 20b Output E HI LO 53 21b 54 22b Bank E Channel 24 55 23b 56 24b 57 25b Channel 21 Channel 22 Channel 23 HI HI HI HI LO LO LO LO 5...

Страница 24: ...24b 56 Chan 14 HI 4b 36 Chan 18 HI 15b 47 Chan 22 HI 25b 57 Chan 14 LO 5b 37 Chan 18 LO 16b 48 Chan 22 LO 26b 58 Chan 15 HI 6b 38 Chan 19 HI 17b 49 Chan 23 HI 27b 59 Chan 15 LO 7b 39 Chan 19 LO 18b 5...

Страница 25: ...d cable con nection techniques using accessories available from Keithley In Figure 3 2A connections are accomplished using a Model 7011 MTC 2 cable and a Model 7011 MTR bulkhead con nector The two met...

Страница 26: ...N2807 P D 50TAB is a 50 con ductor cable Two of these cables can be used to supply 100 conductors The connector has solder cups to accommodate the individual wires of the unterminated cable Figure 3...

Страница 27: ...ept wire size up to 24 AWG The test system is connected to the Model 7035 multiplexer using the Model 7011 MTC 2 round cable assembly This cable mates directly to both the external bulkhead connector...

Страница 28: ...ad Connector Model 7011 MTC 2 Cable Assembly 90 Individual Conductors DUT Test Fixture Instrument HI and LO to Bank C HI and LO to Bank D HI and LO to Bank E HI and LO to Bank F HI and LO to Bank G HI...

Страница 29: ...crew to secure the assembly Make sure to handle the cards by the edges and shields to prevent contamination 2 Facing the rear panel of the Model 7001 7002 select the slot that you wish to install the...

Страница 30: ...ON To prevent damage to the card do not exceed the maximum signal level speci cations of the card Maximum signal levels To prevent overheating or damage to the relays never exceed the following maximu...

Страница 31: ...lot number that the card is installed in The channel assignments for the card are provided in Figure 4 4 Each channel assignment is made up of the slot designator 1 or 2 and the channel 1 to 36 For th...

Страница 32: ...2 7 2 8 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 2 17 2 18 2 19 2 20 2 21 2 22 2 23 2 24 2 25 2 26 2 27 2 28 2 29 2 30 2 31 2 32 2 33 2 34 2 35 2 36 1 2 3 4 5 6 7 8 9 10 B Slot 2 Card 2 1 1 1 2 1 3 1 4...

Страница 33: ...hannel patterns Scanning channels Multiplexer channels are scanned by creating a scan list and configuring the Model 7001 7002 to perform a scan The scan list is created in the same manner as a channe...

Страница 34: ...count to the number of channels in the scan list the third command defines the scan list and the fourth command takes the Model 7001 7002 out of the idle state The following program fragment will per...

Страница 35: ...le switching is required for two wire resis tance testing one Model 7035 card can be used to switch up to 36 resistors by externally connecting the bank outputs using customer supplied jumpers Figure...

Страница 36: ...ks C and D Although the four wire connection scheme minimizes prob lems caused by voltage drops there is one other potentially troublesome area associated with low resistance measure ments thermal EMF...

Страница 37: ...r system If the conductor has sufficient length even weak magnetic fields like those of the earth can create sufficient signals to affect low level measurements Two ways to reduce these effects are 1...

Страница 38: ...cting the accuracy of the measure ment Figure 4 10 Power line ground loops Figure 4 11 shows how to connect several instruments to gether to eliminate this type of ground loop problem Here only one in...

Страница 39: ...Operation 4 10...

Страница 40: ...ning precautions Because of the high impedance areas on the Model 7035 care should be taken when handling or servicing the card to prevent possible contamination The following precautions should be ta...

Страница 41: ...lti plexer card is by hard wiring a 96 pin female DIN connector then mating it to the connector on the Model 7035 Input and output shorting connections can also be done at the connec tor The connector...

Страница 42: ...the HI H terminal of bank A 8 Install the Model 7035 in slot 1 CARD 1 of the Model 7001 7002 9 Turn on the Model 7001 7002 and program it to close channel 1 1 bank A input 1 Verify that the resistanc...

Страница 43: ...5 Connect the triax cable to bank A HI and LO as shown in A 6 Install the Model 7035 in slot 1 CARD 1 of the main frame 7 Turn on the mainframe 8 Program the unit to close channel 1 1 bank A input 1...

Страница 44: ...nterminated Triax Cable LO Black A Differential Bank Inputs H L H L H L H L A 1 3 4 2 B C D E F G H I H L H L H L H L H L H L H L H L H L Bank Outputs B Common Mode Bank Inputs WARNING NO INTERNAL OPE...

Страница 45: ...LO on output bank I long enough to cut with wire cutters 6 Connect the Model 182 input leads to HI and LO output bank A using copper wires 7 Install the Model 7035 in the Model 7001 7002 slot 1 and tu...

Страница 46: ...Clean high purity copper 1 of 36 KEITHLEY 182 SENSITIVE DIGITAL VOLTMETER TRG SRQ REM TALK LSTN Model 182 Bank Inputs H L H L H L H L A 1 3 4 2 B C D E F G H I Low thermal short Clean high purity cop...

Страница 47: ...17A and allow the unit to warm up for two hours before testing 3 Connect the electrometer to the Model 7035 as shown in Figure 5 4 4 Install the Model 7035 in slot 1 CARD 1 and turn on the mainframe W...

Страница 48: ...the table Table 5 2 Bank isolation test summary Test number Bank isolation Test equipment location Channels closed 1 Bank A Input 1 to Bank B Input 2 Bank A and Bank B 1 1 and 1 6 2 Bank B Input 2 to...

Страница 49: ...steps 6 through 19 to test banks B through I inputs Move the electrometer connections shown in Figure 5 5 to the appropriate bank and move the bank input connections as indicated in the table Figure 5...

Страница 50: ...nput 15 1 14 1 15 1 16 15 16 17 Bank E Input 17 to Bank E Input 18 Bank E Input 18 to Bank E Input 19 Bank E Input 19 to Bank E Input 20 Bank E and Input 17 Bank E and Input 18 Bank E and Input 19 1 1...

Страница 51: ...rential and com mon mode isolation 1 Turn off the Model 7001 7002 mainframe if it is on and remove any jumpers and test leads connected to the card 2 Turn on the Model 6517A and allow the unit to warm...

Страница 52: ...del 6517A WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY CAUTION FOR CONTINUED PROT...

Страница 53: ...al or com mon mode isolation Channel closed Test number Differential or com mon mode isolation Channel closed 1 2 3 4 5 Bank A Bank A Input 1 Bank A Input 2 Bank A Input 3 Bank A Input 4 None 1 1 1 2...

Страница 54: ...BLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE FUSE WITH S...

Страница 55: ...ese devices 3 Handle the devices only by the body do not touch the pins 4 Any printed circuit board into which the device is to be inserted must first be grounded to the bench or table 5 Use only anti...

Страница 56: ...transmitted via the relay DATA line A total of five bytes for each card are shifted in serial fashion into latches located in the card relay driver ICs The serial data is clocked in by the CLK line A...

Страница 57: ...card top surface to mea sure voltages under actual operation conditions perform the following steps 1 Disconnect the connector card from the relay card 2 Remove the Model 7001 7002 cover 3 Install th...

Страница 58: ...relay voltage 6 U107 pin 6 ID CLK pulses During power up only 7 U107 pin 5 ID DATA pulses During power up only 8 U101 pin 7 STROBE pulse End of re lay update sequence 9 U101 pin 2 CLK pulses During r...

Страница 59: ...Service Information 5 20...

Страница 60: ...ctory service If the card is to be returned to Keithley Instruments for repair perform the following 1 Complete the service form at the back of this manual and include it with the card 2 Carefully pac...

Страница 61: ...111 CAP 1mF 20 50V CERAMIC C 237 1 C110 CAP 0 001mF 20 500V CERAMIC C 22 001 C122 124 CAP 10mF 20 100 25V ALUM ELEC C 314 10 J1002 1003 CONN 48 PIN 3 ROW CS 736 2 K101 136 RELAY ULTRA SMALL POLARIZED...

Страница 62: ...AND SHIMS 2 56 7 16PPH 4 40 1 4 PHILLIPS PAN HEAD SEMS SCREW RELAY BOARD TO CONNECTOR BOARD 4 40 1 4PPHSEM BRACKET 7011 307 CONNECTOR SHIM 7011 309A SHIELD 7011 311A STANDOFF ST 203 1 J1004 CONN 96 PI...

Страница 63: ......

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Страница 67: ...STRUCTURE 1 1 A B C D D C B A 4 3 2 4 3 2 DATE ENG REVISION ECA NO LTR QTY NEXT ASSEMBLY M O D E L USED ON NO FRAC 1 64 ANG 1 XXX 005 XX 01 DIM TOL UNLESS OTHERWISE SPECIFIED DIM ARE IN IN UNLESS OTHE...

Страница 68: ......

Страница 69: ...ves 5 12 Component layouts and schematic dia grams 7 1 Configuring digital I O input pull up resistance 4 4 Configuring digital I O output logic 4 4 Contact potential tests 6 6 Controlling devices usi...

Страница 70: ...on and removal 4 18 Multi pin mass termination connector card 4 5 N Narrow matrix expansion 4 12 matrix 2 6 O Offset current tests 6 4 Operation 5 1 Optional accessories 1 3 Ordering information 7 1 O...

Страница 71: ...on and off 5 5 Two card switching systems 2 5 Two card system 4 12 Two mainframe system 4 14 Typical connection techniques 4 8 Typical digital I O connection schemes 4 16 Typical matrix connection sch...

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Страница 73: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...

Страница 74: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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