KEI 263 Instruction 电路图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 WARRANTY Keithley Instruments. Inc. warrants this product to be free from defects in material and workmanship for a period of l year from date of shipment. Keithley Instruments. Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargea

2、ble batteries. diskettes, and documentation. During the warranty period, we will, at our option, either repair or replace any product that proves to be defective, To exercise this warranty. write or call your local Keithley representative, or contact Keithley headquarters in Cleveland, Ohio. You wil

3、l be given prompt assistance and return instructions. Send the product, transportation prepaid, to the indicated service facility. Repairs will be made and the product returned, transportation prepaid. Repaired or replaced products are warranted for the balance of the original warranty period, or at

4、 least 90 days. LIMITATION OF WARRANTY This warranty does not apply to defects resulting from product modification without Keithleys express written consent, or misuse of any product or part. This warranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leakag

5、e. or problems arising from normal wear or failure to follow instructions. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES PRO- VIDED HEREIN ARE BUYERS SOLE AND EXCLUSIVE REMEDIES.

6、 NEITHER KEITHLEY INSTRUMENTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, 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 OFTHE POSSIBILITY OF SUCH DAMAGES

7、. SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIM- ITED TO: COSTS OF REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON, OR DAMAGE TO PROPERTY. Keithley Instruments, Inc. * 28775 Aurora Road * Cleveland, OH 44139 - 440-248-0400 *Fax: 440-248-6168 * RadioFans.CN 收音机

8、爱 好者资料库 Model 263 Calibrator/Source Instruction Manual 01987, Keithley Instruments, Inc. All rights reserved. Cleveland, Ohio, U.S.A. Fifth Printing, November 2000 Document Number: 263-901-01 Rev. E RadioFans.CN 收音机爱 好者资料库 Manual Print History The print history shown below lists the printing dates o

9、f all Revisions and Addenda created for this manual. The Revision Level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released between Revisions, contain important change information that the uw should incorporate immediately into the manual. Addenda

10、are numbered sequentially. When a new Revision is created, all Addenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual. Each new Revi- sion includes a revised copy of this print history page. Revision A (Document Number 263-901-01) . October 1

11、987 Addendum A (Document Number 263-901-02). . October 1988 Revision B (Document Number 263-901-01) . December 1988 Revision C (Document Number 263-901-01) . March 1991 Revision D (Document Number 263-901-01). . August 1992 Addendum D (Document Number 263-901-02) . September 1993 Revision E (Documen

12、t Number 263-901-01). . November 2000 Safe Low Temperature Point). . M (SRQ Mask and Serial IoII Byte Format) . O(Operate) . R(Range) . u (Status). . V(OutputValue) . W (Guard), . X(Execute) . Y (Terminator). . . Z(Zero) . TIMING CONSIDERATIONS . 41 4-l 41 4-2 4-3 4-4 44 44 4-5 4-5 4-5 4-6 4-6 4-6 4

13、-7 4-7 4-7 4-7 4-8 4-8 49 49 412 4-13 414 415 416 4-17 4-18 4-19 4-21 4-22 4-23 4-26 4-27 4-28 4-29 430 431 SECTION 5 - Applications 5.1 5.1.1 5.1.2 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.3.6 5.3.7 5.4 5.4.1 5.4.2 5.4.3 5.4.4 5.4.5 5.4.6 5.4.7 5.5 5.5.1 5.5.2 5.5.3 5.5

14、.4 5.5.5 INTRODUCTION . 5-1 Calibration Applications . 5-l Sourcing Applications . 5-l MODEL485CALIBRATION. . 5-l Calibration Storage Enable . 5-1 Required Equipment . 5-l Environmental Conditions . 5-2 Front Panel Calibration . 5-2 IEEE-488 Bus Calibration. . 5-3 MODEL617CALIBRATION. . 5-4 Calibrat

15、ionJumper . 5-4 RequiredEquipment . 5-5 Environmental Conditions . 5-5 Calibrationsequence . 5-5 Manual Calibration Adjustments. . 5-6 Front Panel Digital Calibration. . 5-7 IEEE-488 Bus Digital Calibration. . 5-11 CALIBRATING OTHER PICOAMMETERSIELECTROMETERS . 5-14 Model 480 Picoammeter Calibration

16、. . 5-14 Model 619 Electrometer Calibration . 5-14 Model 614 Electrometer Calibration . 5-15 Model 642 Electrometer Calibration . 5-16 Model 610C Electrometer Calibration. . 5-16 Model 602 Electrometer Calibration . 5-18 Model 616 Electrometer Calibration . 5-19 SOURCING APPLICATIONS . 5-19 Current

17、Suppression . 5-19 Galvanometric Measurements . 5-20 Low Resistance “LindecK Measurements . 5-21 Resistivity Measurements . 5-21 Diode Characterization . 5-21 SECTION 6 - Performance Verification 6.1 6.2 6.3 6.4 6.5 6.6 6.6.1 6.6.2 6.6.3 6.6.4 6.6.5 6.6.6 INTRODUCTION . ENVIRONMENTALCONDITIONS . lNI

18、TIALCONDITIONS . RECOMMENDEDTESTEQUIPMENT . PERFORMANCEVERIFICATION RECORD . VERIFICATIONPROCEDURES . VOLTSAccuracyVerification . 1AccuracyCheck . AMPSZeroOffsetChecks . AMPS (200vA-2mA) Accuracy Checks . AMPS (20pA-2uA) Accuracy Check . AMPS V/R Functional Checks . 6-l 6-l 6-l 6-1 6-2 6-2 6-2 6-3 6

19、-4 6-6 6-7 6-7 iii SECTION 7 - Principles of Operation 7.1 INTRODUCTION . 7.2 OVERALL FUNCTIONAL DESCRIPTION. . 7.3 VOLTAGESOURCE . 7.4 OHMSSOURCE . 7.5 CURRENT SOURCES . 7.5.1 Passive (AMPS V/R) Current Source . 7.5.2 Active(AMPS)CurrentSource . 7.6 CHARGE SOURCES . 7.7 TEMPERATURECOMPENSATION . 7.

20、8 DIGITALCIRCUITRY . 7.8.1 Microcomputer . 7.8.2 MemoryElements . 7.8.3 DeviceSelection . 7.8.4 IEEE-488Bus . 7.9 DISPLAYCIRCUITRY . 7.10 MAINPOWERSUPPLY . SECTION 8 - Maintenance 8.1 8.2 8.3 8.4 8.4.1 8.4.2 8.4.3 8.4.4 8.4.5 8.4.6 8.4.7 8.4.8 8.5 8.6 8.7 8.7.1 8.7.2 8.7.3 8.7.4 8.7.5 8.7.6 8.7.7 8.

21、7.8 8.8 INTRODUCTION . LINE VOLTAGE SELECTION . FUSE REPLACEMENT. . CALIBRATION . Calibration Overview . Recommended Calibration Equipment . Environmental Conditions. . Cool-down Period . Calibration Switch . Calibration Record. . Front Panel Calibration. . IEEE-488 Bus Calibration Program . SPECIAL

22、 HANDLING OF STATIC SENSITIVE DEVICES. DISASSEMBLY INSTRUCTIONS . TROUBLESHOOTING . Recommended Test Equipment. . Power Up Self Test. . Display Test and Software Revision . Power Supply Checks . Logic and Switching FET States. . VoltageSourceChecks . Electrometer Amplifier Check . Digital and Displa

23、y Circuitry Checks. . HANDLING AND CLEANING PRECAUTIONS . 7-l 7-l 7-1 7-7 7-7 7-8 7-8 7-10 7-10 7-10 7-10 7-11 7-11 7-11 7-11 7-12 . 8-l . 8-l . 8-1 . 8-2 . 8-2 . 8-2 . 8-2 . 8-3 . 8-3 . 8-3 . 8-3 . 8-10 . 8-13 . 8-13 . 8-15 . 8-15 . 8-15 . 8-16 . 8-16 . 8-17 . 8-20 . 8-20 . 8-20 . 8-22 SECTION 9 -

24、Replaceable Parts 9.1 INTRODUCTION . 9-l 9.2 ELECTRICAL PARTS LISTS. . 9-l 9.3 MECHANICAL PARTS. . 9-l 9.4 ORDERINGINFORMATION . 9-l 9.5 FACTORYSERVICE. . 9-l 9.6 COMPLETE LOCATION DRAWINGS AND SCHEMATIC DIAGRAMS . Y-l IV APPENDIX A APPENDIX B Interface Function Codes. B-l APPENDIX C ASCII Character

25、 Codes and IEEE-488 Multiline Interface Command Messages. C-l APPENDIX D IBM PC/AT and CEC PC 4R8 Interface Programming. D-l APPENDIX E Controller Frograms. E-l APPENDIX F IEEE-488 Bus Overview. F-l APPENDIX G Performance Verification and Calibration Records. G-l List of Tables SECTION 3 - Operation

26、 3-l Power Up Default Conditions . 3-2 3-2 Sourcing Guarded Ohms to Keithley Electrometers. . 3-14 3-3 Additional Ohms Specifications. . 3-23 3-4 Temperature Compensated Functions/Ranges, . 3-26 3-5 Output Resistance of Passive Sources, . 3-27 SECTION 4 - IEEE-488 Programming 4-l IEEE-488 Contact Designation . 4-2 4-2 BASIC Statements Necessary to Send Bus Commands . 4-5 4-3 IEEE-486Fron