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Содержание 7011-S

Страница 1: ...Instruction Manual Models 7011 Sand 701I C Quad 1 x 10 Multiplexer Cards Contains Operating and Servicing Information...

Страница 2: ...RECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES...

Страница 4: ...e user should incorporate immediately into the manual Addenda are numbered sequentially When a new Revision is created all Addenda associated with the previous Revision of the manual are incorporated...

Страница 5: ...oltage is present in any unknown circuit before measuring Users of this product must be protected from electric shock at all times The responsible body must ensure that users are prevcntcd accessand o...

Страница 6: ...other suppliers as long asthey are equivalent to the original component Note that sc leaed parts should be purchased only through Kcithley Instruments to maintain accuracy and functionality of the pr...

Страница 7: ...two pins IA witched 3WA bG eive load AC Sign 125V FM5 or 173V AC peak between any two pins 1A switched 60VA ke tive load COMMON MODE VOLTAGE 175 peak my pin to chassis CONTACTLIFE CONTACT POTENTIAL 7...

Страница 8: ...m ipkxer ca figurations 2 1 Multiplexer bank to bank jumpers 2 2 Backplane jumpers 2 5 Typical nultiplexer switching schemes 2 6 S xl swit ing 2 7 Differential switching 2 7 sensing 2 a SMIJ co cxtiq...

Страница 9: ...5 5 5 5 6 5 6 1 5 6 2 5 6 3 Introduction 5 l Handling and cleaning precautions 5 l Performance verification 5 2 Environmental conditions 5 2 Recommended equipment 5 2 Multiplexer card connections 5 3...

Страница 10: ...011screw terminal connector card 3 4 Figure 36 Typical screw terminal connections 3 5 Figure 37 Cable clamp for screw terminal connector card 35 Figure 38 MI pin card terminal identification 37 Figure...

Страница 11: ...ge attenuation by path isolation resistance 4 16 Figure 414 Power line ground loops 4 17 Figure 415 Eliminating ground loops 4 17 Figure 5 l Pati esistance test connections 5 4 Figure 5 2 Differadial...

Страница 12: ...le 4 l Pa d Cha r r elsin 4 p Operation _ _ t 4 6 Table 5 1 verification equipment 5 2 Table 5 2 Bank is tic n test s q 5 9 Table 5 3 Channel to channel isolation test mmmary 5 11 Table 5 4 Differenti...

Страница 13: ...the multiplexer are made via the 96 pin male DIN connector on the con nector card Keithley offers a variety of optional acces sories that can be used to make conneciiom to the connector card seeparag...

Страница 14: ...gers that might result in personal injury or death Always read the associated information very carefully before performing the indicated procedure 1 6 Specifications Model 7011specifications are found...

Страница 15: ...ack of this manuaL 1 8 Optional accessories The following accessoriesare available for use with the Model 7011 Model 70ll ST This screw terminal connector card is identical to the one provided with th...

Страница 16: ...e or measure Covers single ended switching differential floating switching and sensing 24 System expansion Discusses the various config urations that are possible by using multiple cards 2 2 Basic mul...

Страница 17: ...u to configure the multiplexer card in a variety of ways Typical multi plexer coniigwations include l Four 1 x 10rxtitiplexers no jumpers installed Fig ure 2 2 l Two 1 x 20 multiplexers Bank A jumpere...

Страница 18: ...k C 1 Bank D I i z O utD 10 Figure 2 2 Four 1 x 10 multiplexer configuration jumpers not installed 1 x2 Bank 6 109 x2 l 1 z2 Bank C 10 2 l 1 2 Bank D 10 2 l Figure 2 3 Two 7 x 20 multiplexer configura...

Страница 19: ...inputs 10 Bank A 10 I Output A 1 2 Bank B Jumpers 10 2 1 2 Bank C Jumpers 10 Z 1 2 Bank D JUllp S 100 2 One 1 x 40 multiplexer configuration jumpers installedl 2 4...

Страница 20: ...nalog back rows of a compatible card installed in the other slot of the mainframe plane of the Model 7001allowing expansion with a sec ond 7001 card installed in the mainframe With the jumpers removed...

Страница 21: ...in frame is electrically isolated from any card installed in the other slot The only way to connect a Model 7011 to one of these cards is to wire them to gether 7011 7001 Bank Analog 1 Of4 Backplane H...

Страница 22: ...and the DUT is shown connect4 to one of the inputs for that bank The differential or floating switching configl lration is shown in Figure 2 8 The advantage of using this con figuration is that the t...

Страница 23: ...path resistance 43 and the resis tame of external cabling Whenever path resistance is a consideration sensing should be used Figure 2 10 shows how to connect a Keithley Model 236 237 or 238 Source Mea...

Страница 24: ...GUARD Make sure all cable shields are properly insulated before applying power WARNING Hazardous v ages may be present on GUARD Make sure all cable shields are properly insulated before applying power...

Страница 25: ...ch other Figure 2 11 shows an example using two Model 7011 niultiplexer cards Multiplexer input expansion You can double the number of multiplexer inputs by simply installing two as shipped Model 7011...

Страница 26: ...12matrix card installed in the other slot on the mati card 2 4 2 Mainframe multiplexer expansion Figure 2 13 shows a possible switching system using a matrix card and a multiplexer card The backplane...

Страница 27: ...Card 1 Card 2 r 7012 r 701 1 Bank A Bank C Bank D __ _ __ 4xlOMatrix Quad 1 x 10 MUX Figure 2 73 Mixed card type example 2 12...

Страница 28: ...de edges or shields Do not touch the board surfaces or components On connectors do not touch areasadjacent to the electrical contacts Dirt build up over a period of time is another possible source of...

Страница 29: ...to form larger mukiplexers The locations of The following connection infolma the bank to bank jumper terminals for both connector tion is intended to be used by quali cards are shown in Figure 3 l fi...

Страница 30: ...y from each other Remember to only handle the cards by the edges and shields to avoid contamination 2 Refer to Figure 32 and Table 31 to determine which jumpers to install 3 Using Figure 3 3 as a guid...

Страница 31: ...2 Physically remove a cut jumper by unsoldering it from the PC board 3 Install a new 22 AWG jumper wire o eithley P N J 15 and solder it to the PC board 4 Remove the solder flux from the PC board The...

Страница 32: ...7 remove the top half of the cable clamp as follows A Loosen the cable clamp screw enough to disen gage it from the bottom half of the cable clamp B Using your thumb and forefinger press the re taini...

Страница 33: ...multi pin connector card is provided by Figure 3 8 This connector will mate to a 96 pin female DIN con nector Keithley has a variety of cable and connector accesso ries available to accommodate connec...

Страница 34: ...nsisting of banks A D and inputs l 10 2 Connector description consisting of rows a c and columns l 32 3 Schematic and component layout designation l 96 The following pinout diagrams show the correspon...

Страница 35: ...ilable from Keithley In Figure 3 9A connections are accomplished using a Model 7011h4TC 2 cable and a Model 7011 MTRbulk head connector The two meter round cable is termi nated with a 96 pin female DI...

Страница 36: ...Figure 3 9 Typical round cable connection techniques 3 9...

Страница 37: ...0 View from solder cup side of connector Note See Figure 3 6 for terminal identification Figure 3 10 Model 7011 MTR connector pinout Figure 3 11 Model 707 I KIT R with cable assembly 3 10...

Страница 38: ...st system is connected to the multiplexer using the Model 7011 h4TC 2round cable assembly This cable mates directly to both the external bulkhead connector and the Model 7011 C multiplexer card as sem...

Страница 39: ...Figure 3 12 Single cardsystem example multi pin connector card 3 l 2...

Страница 40: ...ections Insrallation 2nd D 1 mdB _ I DUT Test Fixture I Notes Bank to bankjumpers installed I 1 Dual 1x20 Simplified Equivalent Circuit Figure 3 13 single card system example screw terminal connector...

Страница 41: ...accomplish this bank to bank jumpers of fall three cards must be installed to connect Banks A B L C and D together By leaving the bac me jumpers of the cards in main fmme l installed the banks of Car...

Страница 42: ...DUTTest Fixture Figure 3 14 TWO card system example multi pin connector card 3 15...

Страница 43: ...DUTTest Fixture I Simplified Equivalent Circuit Figure 3 75 Two card system example screw terminal connector card 3 16...

Страница 44: ...Card Connections installation DUT Test Fixture O l K R 1 40 41 DUT Test Fixture Simplified Equivalent Circuit Figure 3 16 Two mainhme system example multi pin connector card 3 17...

Страница 45: ...Simplified Equivalent Circuit Figure 3 17 Two mainframe system example screw terminal connectOr card 3 l 8...

Страница 46: ...is re moved and any stored energy in ex ternal circuitry is discharged 1 Mate the connector card to the relay card if they are separated IInstall the supplied 4 40 screw at the end of the card to sec...

Страница 47: ...3 18 7011 C card installation in Model 7001 Ejector Arms 2 3 20...

Страница 48: ...Figure 3 19 7011 scardinstallation in Model700 3 21...

Страница 49: ...age to the card do not exceed the maximum signal level specifications of the card Maximum signal levels To prevent overheating or damage to the relays never exceed the following maximum signal levels...

Страница 50: ...the main frame each multiplexer input must have a unique CHANNEL assignment which includes the slot num her that the card is installed in The CHANNE L assign ments for the multiplexer card are provid...

Страница 51: ...organization for multiplexer channels A Slot 1 Card 1 1 B Slot 2 Card 2 1 Examples 1 18 Slot 1 Channel 18 Input 8 Bank B 2 36 Slot 2 Channel 38 xut 6 Bank Db Figure 4 3 Model 7011 programming channel...

Страница 52: ...s between the channel list and the scan list The following shows an example of a scan list SCAN CHANNELS 2 1 2 3 2 21 2 25 When a scan is performed the am specified in the scanlist will be scanned in...

Страница 53: ...coun auto on 25 OUTPU I 707 trigzdelO Z5 30 0uTruT707 scan 1 1 1 40 40 0InPuT707 W 50 END Line5 opensallchanneL5 Line25 Sets a l 4 second delay after each channel closes 4 4 Multiplexer switching exa...

Страница 54: ...operation by isolating Banks A and B from Banks C and D and by programming the Model 7001 main frame for 4pole mode The resulting pa d channels are shown in Table 4 1 Table 4 1 Paired Channels in pole...

Страница 55: ...el on the card Although the four wire connection scheme minimizes problems caused by voltage drops there is one other potentially txublesome area associated with low r s tance measurements thermal EM...

Страница 56: ...a detrimental effect on measurement accwa cy unless stepsare taken to avoid them the Model 7011 has been designed to keep relay EMF at a minimal lev el Thermal FMF effectscanbe virtually eliminated b...

Страница 57: ...alent circuit for the current gain test The Model 224Current Sourceis used to source the basecurrent I The Model 730 Voltage Source supplies the collector emitter volt age V and the collector current...

Страница 58: ...Model224 C menteowce A Test Configuration B Simplified Equivalent Circuit Figure 4 7 Configuration for current gain and common emitter test 4 l 0...

Страница 59: ...em and also briefly out line a typical test that can be made with such a system Multiplexer and matrix card connections Figure 4 9 shows a typical sy stemusing Model 7012 and 7011cards together In thi...

Страница 60: ...doping concentratiOn to minimize errors caused by sample loading the Mod d 196 should be used on the 3OOmVor 3V ranges Also resistance values should be 1MQ or less As shown in Figure 410 the Model 701...

Страница 61: ...A Connections 6 Simplified Equivalent Circuit One measurement leg shown Figure 4 l 0 Resistiviv 2 3 COnfiguratiOn 4 l 3...

Страница 62: ...Operation Figure 4 l 1 Measurement required for resistivity test 4 14...

Страница 63: ...system Ideally the path isolation should be infinite but the ac tual resistance and distributed capadtance of cables and connectors results in less than infinite path isola tion values for these devic...

Страница 64: ...igital circuits etc or it can result from impulse sources asin the caseof arcing in high voltage environments In either case the effect on the measurement can be considerable if enough of the unwanted...

Страница 65: ...ntation in the test setup 4 5 5 Keeping connectors clean As is the casewith any high resistance device the in tegrity of connectors can be damaged if they are not handled properly If connector insulat...

Страница 66: ...shooting Presents some troubleshooting tips for the Model 7011 induding relay replace ment precautions 5 2 Handling and cleaning precautions Because of the high impedance areas on the Model 7011 care...

Страница 67: ...ipment the side edges Do not touch the con nectors and do not touch the board s lufaces or components on plugs and receptacles do not touch areas adjacent to the electrical contacts NOTE Failure of an...

Страница 68: ...king measurements 3 Connect ail input terminals of Bank A together to form one common terminaI asshown in Figure 5 1 4 Set the Model 196 to the 3WR range and connect the four test leads to the OHMS an...

Страница 69: ...i H L H I c ts L H L I i HLHL LHLHL LHLHiHL L Bank lnptlts Model 7011 Figure 5 l Path resistance test connections 5 4...

Страница 70: ...to Bank A HI and LO as shown in Figure 5 2A 5 6 7 8 9 10 11 12 13 14 Install the Model 7011 in slot 1 CARD 1 of the Model 7001 Turn on the Model 7001 and program the unit to closechannel l l Bank A I...

Страница 71: ...L J Model 7011 A Differential Bank inputs _ L J Model 7011 B Common Mode Bank outputs Figure 5 2 Differential offset current test connections 5 6...

Страница 72: ...output Bank A using copper wires 7 8 9 10 Install the Model 7011in the Model 7001slot 1 and turn the Model 7001on Allow Models 7001 7011 and 182to warm up for two hours 11 Selectthe 3mV range on the M...

Страница 73: ...the entire procedure 4 Connect the electrometer to the Model 7011 as shown in Figure 5 4 5 Install the Model 7011 in slot 1 CARD 1 of the Model 7001and turn the mainframe on 6 On the Model 617 select...

Страница 74: ...nnel to ckannel isolation 24 Turn off the Model 7001and connect the Model 617 to the card as shown in Figure 5 5 25 Install the Model 7011in slot 1 of the Model 7001 and turn the mainframe on 26 l rog...

Страница 75: ...Service Information Figure 5 5 Channel to channel isolation test connections 5 10...

Страница 76: ...k B Input 8 Bank Band Input 7 1 18 17 Bank B Input 8 to Bank B Input 9 Bank B and Input 8 1 19 18 Bank B Input 9 to Bank B Input 10 Bank B and Input 9 1 20 19 Bank C Input 1to Bank C Input 2 Bank C an...

Страница 77: ...curacy 3 On the Model 617 select the 2pA range and enable zero check and zero correct in that order Leave zero correct enabled for the entire procedure WARNING The following steps use high voltage 100...

Страница 78: ...common mode isolation testing r Igxmrmd as slot 1 and charmeL Test Differential or com Channel number mon mode isolation closed 1 2 3 4 5 6 7 8 9 10 11 BankA Bank A Input 1 Bank A Input 2 Bank A Inpu...

Страница 79: ...y designed to prevent or dissipate static build up Typically these devices will be received in anti static containers made of plastic or foam Keep these parts in their original containers until ready...

Страница 80: ...ation the sequence described below is performed on power up 1 The IDDATA line pin 6of U105 is setfrom high to low while the IDCLK line pin 5 of U105 is held high This action initiates a start command...

Страница 81: ...stat Bii I I I I I I I I l l I I I I I I I Stop Bit Figure 5 9 Stat and stop sequences I I I ID CLK IDDATA Data oulpui I I from mainframe or ROM IDDATA I I I x x I I Dataoutput I from mainframe I I or...

Страница 82: ...its nominal steady state value of 3X 5 5 5 power on safeguard NOTE The power on safeguard circuit dis cussedbelow is actually located on the digital board in the Model 7001main frame A power on safeg...

Страница 83: ...ng with live circuits Failure to do SDcould re suit in personal injury or death CAUTION Observe the following precautions when troubleshooting or repairing the switch card To avoid contamination which...

Страница 84: ...c IDCLKpulseS ID DATA pulses STROBEpulse CLK pukes DATA pukes Low with relay energized high with relay de energized L ChNllent 5 All voltages referenced to digital ground GND pad Relay voltage Logic v...

Страница 85: ...rts are listed al phabetically in order of circuit designation If the card is to be returned to Keithky Instnunents for repair perform the f0lkxvin 1 Complete the service form at the back of this man...

Страница 86: ...d for 7011 Sand 7011 C NOTE The Model 7011and 7012use the same relay card only the connector cards are different Table2 Parts List Screw Terminated Connector Card for 7011 S 7011 160 Component Layout...

Страница 87: ...TOR MALE RELAY ULTRA SMALL POLARIZED TF2E 5V CONNECTOR RIGHT ANGLE MALE TRANS Nl N PWR TIP31 TO 220AB TRANS N CHAN MOSPOW FET V11713 TO 92 RES 2 49K l l SW METAL FILM RES l l5K l l EW METALRLM RES 560...

Страница 88: ...2 25917...

Страница 89: ...TC17 100 25917 2...

Страница 90: ...TC17 100 BOARD ASS Y ORIENT ARROW TOWARDS PIN 1 OF DEVICE E2 25917 CHG D U105 FROM IC 737 TO TC17 100 DELETED SO 72 KK 6 18 01...

Страница 91: ...OO 105 Description CABLE CLAMl CAPTIVE SCREW FOR TOP CLAMP CONNECTOR JUMl ER FOR CS 339 Z CONNECTOR SHIM FOR P1002 1003 SHIELD STRIP P0LYuRETHAiwz FOR BOTTOM CLAMP TOP CLAMF COW 8 PIN CONN 6 PIN TE 11...

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Страница 94: ...96 PIN 3 ROWS RLAY ULTRA SMALL POLARIZED TF2E 4 5V CONNECTOR FEMALE TRANS N CHAN MOSPOW FET V11713 TO 92 RES lM lo 1 2W COMPOSITION RES 39 5 1 4W COMPOSITION OR FILM RES 1O 5 1 4W COMl OSITION OR FIL...

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Страница 97: ...rticular range or function bad specify 0 Batteries and fuses are OK 0 Checked all cables 0 Calibration only 0 Data required 0 Certificate of calibration required attach any additional sheets as necess...

Страница 98: ...Keithley Instruments Inc lest Instrumentation Croup 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...

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