KEI 617 Instruction 电路图.pdf

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1、Model 617 Programmable Electrometer Instruction Manual Contains Operating and Servicing Information 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 1 year from date of shipment. Keithley Instruments

2、, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable 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 ca

3、ll your local Keithley representative, or contact Keithley headquarters in Cleveland, Ohio. You will 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.

4、 Repaired or replaced products are warranted for the balance of the origi- nal warranty period, or at 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 wa

5、rranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leakage, 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

6、 FITNESS FOR A PARTICULAR USE. THE REMEDIES PROVIDED HEREIN ARE BUYERS SOLE AND EXCLUSIVE REMEDIES. NEITHIZR KEITHLEY INSTRUMBNTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT, INDI- RECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOmW

7、ARE EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIMITED TO: COSTS OF REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON, OR DAMAGE TO PROPERTY. Keithley Instruments,

8、 Inc. - 28775 Aurora Road - Cleveland, OH 44139 - 216-248-0400 - Fax: 216-24X-6168 - RadioFans.CN 收音机爱 好者资料库 Model 617 Programmable Electrometer Instruction Manual 0 1984, Keithley Instruments, Inc. Test Instrumentation Group All rights reserved. Cleveland, Ohio, U.S.A. Document Number: 617-901-01 R

9、ev. C RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS TABLE OF CONTENTS SECTION l-GENERAL INFORMATION 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 2.1 2.2 2.3 2.4 2.4.1 2.4.2 2.4.3 2.5 2.5.1 2.5.2 2.5.3 2.6 2.6.1 2.6.2 2.6.3 2.7 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6 2.7.7 2.7.8 2.8 2.8.1 2.8.2 2.9 2.9.1

10、2.9.2 2.10 2.10.1 2.10.2 2.10.3 2.10.4 2.10.5 2.10.6 Introduction . Features . . Warranty Information . ManualAddenda. . Safety Symbols and Terms . Specifications . Using this Instruction Manual . Unpacking and Inspection . Getting Started . Preparation for Use . Repacking for Shipment. . Accessorie

11、s . SECTION 2-OPERATION Introduction . Power Up Procedure . Power Up Self Test and Display Messages . Front Panel Familiarization . Controls . Display and Indicators . TiltBan . Front Panel Programs . IEEE-488 Address . Exponent Mode (Alpha or Numeric) . Calibration . Rear Panel Familiarization. . C

12、onnectors and Terminals. . V,RGUARDSwitch . LineFuse. . Basic Measurement Techniques. . Warm Up Period . Input Connections . Making Voltage Measurements. . Guarded Operation . Making Current Measurements. . Making Charge Measurements . Resistance Measurements . Using the Ohms Function As A Current S

13、ource Using the Voltage Source . Basic Operating Procedure . V/I Resistance Measurements . Analog Outputs . 2v Analog Output . PreampOut . Using External Feedback . Electrometer Input Circuitry . Shielded Fixture Construction . External Feedback Procedure. . Non-Standard Coulombs Ranges . Logarithmi

14、c Currents . Non-Decade Current Gains . . . . . . . 2-l . 2-l 2-l . 2-2 . 2-2 . 2-4 . 2-4 2-4 . 2-4 . 2-5 . 2-5 . 2-5 . 2-5 2-7 . 2-7 . 2-7 . 2-7 . 2-8 . 2-E . Z-10 . 2-11 . . 2-13 . 2-15 . 2-16 . 2-17 . 2-17 . 2-17 . 2-19 . 2-19 . 2-19 . 2-22 . 2-22 . 2-22 . 2-23 . 2-24 . 2-24 . 2-2.5 I 2.11 2.11.1

15、 2.11.2 2.12 2.13 2.13.1 2.13.2 2.13.3 2.14 2.14.1 2.14.2 2.14.3 2.14.4 2.14.5 2.14.6 2.14.7 2.14.8 2.15 3.1 3.2 3.3 3.3.1 3.3.2 3.3.3 3.4 3.4.1 3.4.2 3.4.3 3.4.4 3.4.5 3.5 3.4 3.6.1 3.6.2 3.6.3 3.7 3.7.1 3.7.2 3.7.3 3.7.4 3.8 3.8.1 3.8.2 3.8.3 3.8.4 3.9 3.9.1 3.9.2 3.9.3 3.9.4 3.9.5 3.9.6 3.9.7 3.9

16、.8 3.10 Using Zero Correct and Baseline Suppression Zero Correct and Zero Check . Using Suppression . DataStorage . External Triggering. . External Trigger . Meter Complete . Triggering Example . Measurement Considerations . GroundLoops . Electrostatic Interference . Thermal EMFs . RF1 . Leakage Res

17、istance Effects . Input Capacitance Effects. . Source Resistance . Source Capacitance . Engineering Units Conversion . SECTION 3-IEEE-488 PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . 3-l BusDescription . 3-l IEEE-488BUSLINES . 3-2 DataLines. . 3-2 BusManagementLin

18、es . .r . 3-2 HandshakeLines . 3-2 BusCommands . 3-3 UniIineCommands . 3-3 UniversalCommands . 3-4 AddressedCommands . 3-4 Unaddressedcommands . 3-5 Device-DependentCommands . 3-5 CommandCodes. . 3-5 CommandSequences . 3-5 AddressedCommandSequence . 3-5 UniversalCommandSequence . 3-7 Device-Dependen

19、tCommandSequence . 3-7 Hardwareconsiderations. . 3-7 Typical Controlled Systems. . 3-7 BusConnections . 3-8 PrimaryAddressProgramming . 3-9 Talk-OnlyMode . . . . . ._ . 3-9 Softwareconsiderations . 3-10 Controller Handler Software, . 3-10 Interface BASIC Programming Statements . 3-10 Interface Funct

20、ion Codes . . . 3-12 IEEECommandGroups . 3-12 General Bus Command Programming . : . 3-12 REN(RemoteEnable) . 3-13 IFC(InterfaceClear) . 3-14 LLO(LocalLockout) . ._ . 3-14 GTL(GoToLocaI) . 3-14 DCL(DeviceClear) . 3-15 SDC (Selective Device Clear) . 3-15 GET(GroupExecuteTrigger). . 3-16 Serial Polling

21、 (WE, SPD) . . 3-16 Device-Dependent Command Programming . . . 3-17 ii 3.10.1 3.10.2 3.10.3 3.10.4 3.10.5 3.10.6 3.10.7 3.10.8 3.10.9 3.10.10 3.10.11 3.10.12 3.10.13 3.10.14 3.10.15 3.10.16 3.10.17 3.10.18 3.11 3.11.1 3.11.2 3.11.3 3.12 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 5.1 5.2 5.3 5.4 5.5 5.

22、5.1 5.5.2 5.5.3 5.5.4 5.5.5 5.5.6 5.5.7 Execute(X) . . Function (F) . Range(R) . Zero Correct and Zero Check (Z and C) Baseline Suppression (N) . Display Mode CD). . Reading Mode (B) . . Data Store Mode . Voltage Source Value (V) . Voltage Source Operate (0) . Calibration Value (A). . Non-Volatile M

23、emory Storage (L) . Data Format (G) . Trigger Mode (T) . SRQ Mode (M) and Status Byte Format EOI and Bus Hold-Off Modes (K) . Terminator(Y) . Status(u) . Front Panel Messages . BusError. . NumberError . Trigger Overrun Error . Bus Data Transmission Times . SECTION 4-APPLICATIONS Introduction . Insul

24、ation Resistance Measurements. . HighImpedanceVoItmeter . Low-Level Leakage Current Measurements . DiodeCharacterization . CapacitorLeakageMeasurements . CapacitanceMeasurement . Voltage Coefficients of High-Megohm Resistors . Static Charge Detection . Using the Model 617 with External Voltage Sourc

25、es . SECTION 5-PERFORMANCE VERIFICATION Introduction . Environmental Conditions . Initial Conditions . Recommended Test Equipment . Verification Procedure . Input Current Verification . Amps Verification . Coulombs Verification. . Volts Verification . Ohms Verification . Ohms Verification (200M0 and

26、 Gfl Ranges) Voltage Source Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 3-18 3-20 3-21 3-22 3-22 3-23 3-23 3-24 3-25 3-25 3-26 3-26 3-27 3-28 3-30 3-31 3-31 3-34 3-34 3-35 3-35 3-36 4-l 4-l 4-5 4-5 4-7 4-8 4-E 4-10 4-12 4-12 5-l 5-l 5-l 5-l 5-2 5-2 5-2

27、5-3 5-5 5-6 5-6 5-8 iii SECTION 6-THEORY OF OPERATION 6.1 6.2 6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.4 6.4.1 6.4.2 6.4.3 6.5 6.6 6.6.1 6.6.2 6.6.3 6.6.4 6.6.5 6.6.6 6.7 6.6 7.1 7.2 7.3 7.3.1 7.3.2 7.4 7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 7.4.6 7.4.7 7.4.8 7.4.9 7.4.10 7.4.11 7.4.12 7.4.13 7.4.14 7.4.15 7.4.16

28、 7.5 7.6 7.7 7.7.1 7.7.2 7.7.3 7.7.4 7.7.5 7.7.6 Introduction . Overall Functional Description . Input Preamplifier . Input stage . Gain Stage. . Output stage. . Ohms Voltage Source Zero Check . Additional Signal Conditioning . Ranging Amplifier . Multiplexer and Buffer Amplifier . - 2V Reference Source. . A/D Converter. . Digital Circuitry . Microcomputer. . Memory Elements. . Device Selection . IEEE-486 Bus . Input/Output Circuitry . Display Circuitry . Voltage source . Power Supplies . SECTION 7-MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .