KEI 6514 Instruction 电路图.pdf

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1、Model 6514 System Electrometer Instruction Manual A G R E A T E RM E A S U R E O F C O N F I D E N C E 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 Instrume

2、nts, 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 o

3、r call 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 prep

4、aid. Repaired or replaced products are warranted for the balance of the original warranty period, or at least 90 days. LIMITATION OF WARRANTY This warranty does not apply to defects resulting from product modifi cation without Keithleys express written consent, or misuse of any product or part. This

5、 warranty 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, INCLUD- ING ANY IMPLIED WARRANTY OF MERCHANTABILI

6、TY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES PROVIDED HEREIN ARE BUYERS SOLE AND EXCLUSIVE REMEDIES. 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 SO

7、FTWARE EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. SUCH EXCLUDED DAM- AGES 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. A G R E A T E R

8、M E A S U R E O F C O N F I D E N C E Keithley Instruments, Inc. Corporate Headquarters 28775 Aurora Road Cleveland, Ohio 44139 440-248-0400 Fax: 440-248-6168 1-888-KEITHLEY (534-8453) Belgium: Sint-Pieters-Leeuw 02-363 00 40 Fax: 02-363 00 64 www.keithley.nl Italy: Milano 02-48 39 16 01 Fax: 02- 48

9、 39 16 28 www.keithley.it China: Beijing 8610-82251886 Fax: 8610-82251892 Japan: Tokyo 81-3-5733-7555 Fax: 81-3-5733-7556 www.keithley.jp Finland: Helsinki 09-5306-6560 Fax: 09-5306-6565 Korea: Seoul 82-2-574-7778 Fax: 82-2-574-7838 France: Saint-Aubin 01-64 53 20 20 Fax: 01-60 11 77 26 www.keithley

10、.fr Netherlands: Gorinchem 0183-635333 Fax: 0183-630821 www.keithley.nl Germany: Germering 089/84 93 07-40 Fax: 089/84 93 07-34 www.keithley.de Singapore: Singapore 65-6747-9077 Fax: 65-6747-2991 Great Britain: Theale 0118 929 7500 Fax: 0118 929 7519 www.keithley.co.uk Sweden: Solna 08-509 04 600 Fa

11、x: 08-655 26 10 India: Bangalore 91-80 2212 8027 Fax: 91-80 2212 8005 Taiwan: Hsinchu 886-3-572-9077 Fax: 886-3-572-9031 .tw 3/04 RadioFans.CN 收音机爱 好者资料库 Model 6514 System Electrometer Instruction Manual 1998, Keithley Instruments, Inc. All rights reserved. Cleveland, Ohio, U.S.A. Fourth Printing, M

12、ay 2003 Document Number: 6514-901-01 Rev. D RadioFans.CN 收音机爱 好者资料库 Manual Print History The print history shown below lists the printing dates of all Revisions and Addenda created for this manual. The Revision Level letter increases alphabetically as the manual undergoes subsequent updates. Addenda

13、, which are released between Revisions, contain important change information that the 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 into the new

14、Revision of the manual. Each new Revision includes a revised copy of this print history page. Revision A (Document Number 6514-901-01).October 1998 Addendum A (Document Number 6514-901-02).December 1998 Revision B (Document Number 6514-901-01).December 1998 Revision C (Document Number 6514-901-01).J

15、une 1999 Revision D (Document Number 6514-901-01).May 2003 All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc. Other brand names are trademarks or registered trademarks of their respective holders. The following safety precautions should be observed befor

16、e using this product and any associated instrumentation. Although some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions may be present. This product is intended for use by qualifi ed personnel who recognize shock hazards

17、and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before us- ing the product. Refer to the manual for complete product specifi cations. If the product is used in a manner not specifi ed,

18、the protection provided by the product may be impaired. The types of product users are: Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equip- ment is operated within its specifi cations and operating limits, and for ensuring th

19、at operators are adequately trained. Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must be protected from electric shock and contact with hazardous live circuits. Maintenance personnel perform routine

20、procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the manual. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service

21、personnel. Service personnel are trained to work on live circuits, and perform safe installations and repairs of products. Only properly trained service personnel may perform installation and service procedures. Keithley products are designed for use with electrical signals that are rated Measuremen

22、t Category I and Measurement Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient o

23、ver-voltages. Measurement Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to Category I sources unless otherwise marked or described in the Manua

24、l. Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test fi xtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS, 42.4V peak, or 60VDC are present. A good

25、safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring. Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In

26、some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000 volts, no conductive part of the circuit may be exposed. Do not

27、connect switching cards directly to unlimited power circuits. They are intended to be used with impedance limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card. Before

28、 operating an instrument, make sure the line cord is connected to a properly grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use. When installing equipment where access to the main power cord is restricted, such as ra

29、ck mounting, a separate main input power disconnect device must be provided, in close proximity to the equipment and within easy reach of the operator. For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. ALWAYS remove

30、power from the entire test system and discharge any capacitors before: connecting or disconnecting S afety Precautions 5/03 cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers. Do not touch any object that could provide a curr

31、ent path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured. The instrument and accessories must be used in accordance with its specifi cation

32、s and operating instructions or the safety of the equipment may be impaired. Do not exceed the maximum signal levels of the instruments and accessories, as defi ned in the specifi cations and operating information, and as shown on the instrument or test fi xture panels, or switching card. When fuses

33、 are used in a product, replace with same type and rating for continued protection against fi re hazard. Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections. If you are using a test fi xture, keep the lid closed while power is ap

34、plied to the device under test. Safe operation requires the use of a lid interlock. If a screw is present, connect it to safety earth ground using the wire recommended in the user documentation. The symbol on an instrument indicates that the user should refer to the operating instructions located in

35、 the manual. The symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of normal and common mode voltages. Use standard safety precautions to avoid personal contact with these voltages. The symbol indicates a connection terminal to the equipmen

36、t frame. The WARNING heading in a manual explains dangers that might result in personal injury or death. Always read the associated information very carefully before performing the indicated procedure. The CAUTION heading in a manual explains hazards that could damage the instrument. Such damage may

37、 invalidate the warranty. Instrumentation and accessories shall not be connected to humans. Before performing any maintenance, disconnect the line cord and all test cables. To maintain protection from electric shock and fi re, replacement components in mains circuits, including the power transformer

38、, test leads, and input jacks, must be purchased from Keithley Instruments. Standard fuses, with applicable national safety approvals, may be used if the rating and type are the same. Other components that are not safety related may be purchased from other suppliers as long as they are equivalent to

39、 the original component. (Note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product.) If you are unsure about the applicability of a replacement component, call a Keithley Instruments offi ce for information. To clean an inst

40、rument, use a damp cloth or mild, water based cleaner. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with no case or chassis (e.g., data acquisition board for i

41、nstallation into a computer) should never require cleaning if handled accord- ing to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing. ! Table of Contents 1Getting Started General information . 1-2 Wa

42、rranty information . 1-2 Contact information . 1-2 Safety symbols and terms . 1-2 Inspection . 1-2 Options and accessories . 1-3 System electrometer features . 1-4 Front and rear panel familiarization . 1-5 Front panel summary . 1-5 Rear panel summary . 1-8 Power-up . 1-10 Line power connection . 1-

43、10 Line frequency selection . 1-10 Power-up sequence . 1-11 Display . 1-12 Status and error messages . 1-12 Default settings . 1-12 SCPI programming . 1-15 2Measurement Concepts Measurement overview . 2-2 Performance considerations . 2-2 Warm-up period . 2-2 Autozero . 2-2 Connection fundamentals . 2-3 Input connector . 2-3 Low noise input cables . 2-5 Basic connections to DUT .