KEI 2001 Calibration 电路图.pdf

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1、Model 2001Multimeter Calibration 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 3 years from date of shipment. Keithley Instruments, Inc.

2、 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 call yo

3、ur 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. Repa

4、ired 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 warranty

5、 also does not apply to fuses, software, non-rechargeable batteries, damage from battery leak- age, 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 FIT

6、NESS 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 INSTRU- MENTS AND SOFTWARE

7、EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POS- SIBILITY 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 DAM- AGE TO PROPERTY. Keithley Instruments,

8、 Inc. 28775 Aurora Road Cleveland, Ohio 44139 440-248-0400 Fax: 440-248-6168 1-888-KEITHLEY (534-8453) Sales Offi ces:BELGIUM:Bergensesteenweg 709 B-1600 Sint-Pieters-Leeuw 02-363 00 40 Fax: 02/363 00 64 CHINA:Yuan Chen Xin Building, Room 705 12 Yumin Road, Dewai, Madian Beijing 100029 8610-6202-288

9、6 Fax: 8610-6202-2892 FINLAND:Tietjntie 2 02130 Espoo Phone: 09-54 75 08 10 Fax: 09-25 10 51 00 FRANCE:3, alle des Garays 91127 Palaiseau Cdex 01-64 53 20 20 Fax: 01-60 11 77 26 GERMANY:Landsberger Strasse 65 82110 Germering 089/84 93 07-40 Fax: 089/84 93 07-34 GREAT BRITAIN:Unit 2 Commerce Park, Br

10、unel Road Theale Berkshire RG7 4AB 0118 929 7500 Fax: 0118 929 7519 INDIA:Flat 2B, Willocrissa 14, Rest House Crescent Bangalore 560 001 91-80-509-1320/21 Fax: 91-80-509-1322 ITALY:Viale San Gimignano, 38 20146 Milano 02-48 39 16 01 Fax: 02-48 30 22 74 KOREA:FL., URI Building 2-14 Yangjae-Dong Seoch

11、o-Gu, Seoul 137-130 82-2-574-7778 Fax: 82-2-574-7838 NETHERLANDS:Postbus 559 4200 AN Gorinchem 0183-635333 Fax: 0183-630821 SWEDEN:c/o Regus Business Centre Frosundaviks All 15, 4tr 169 70 Solna 08-509 04 679 Fax: 08-655 26 10 SWITZERLAND:Kriesbachstrasse 4 8600 Dbendorf 01-821 94 44 Fax: 01-820 30

12、81 TAIWAN:1FL., 85 Po Ai Street Hsinchu, Taiwan, R.O.C. 886-3-572-9077 Fax: 886-3-572-9031 Copyright 2001 Keithley Instruments, Inc. Printed in the U.S.A. 11/01 RadioFans.CN 收音机爱 好者资料库 Model 2001 Multimeter Calibration Manual 1992, Keithley Instruments, Inc. All rights reserved. Cleveland, Ohio, U.S

13、.A. Fifth Printing April 1996 Document Number: 2001-905-01 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 of all Revisions and Addenda created for this manual. The Revision Level letter increases alphabetically as the manual undergoes subse

14、quent updates. Addenda, which are released between Revi- sions, contain important change information that the user should incorporate immediately into the manual. Addenda are num- bered sequentially. When a new Revision is created, all Addenda associated with the previous Revision of the manual are

15、incorporated into the new Revision of the manual. Each new Revision includes a revised copy of this print history page. Revision A (Document Number 2001-905-01).April 1992 Revision B (Document Number 2001-905-01).June 1992 Revision C (Document Number 2001-905-01) . May 1993 Addendum C (Document Numb

16、er 2001-905-02).June 1993 Addendum C (Document Number 2001-905-03).November 1993 Addendum C (Document Number 2001-905-04).January 1995 Revision D (Document Number 2001-905-01). August 1995 Revision E (Document Number 2001-905-01).April 1996 All Keithley product names are trademarks or registered tra

17、demarks of Keithley Instruments, Inc. Other brand and product names are trademarks or registered trademarks of their respective holders. Safety Precautions The following safety precautions should be observed before using this product and any associated instrumentation. Although some in- struments an

18、d accessories would normally be used with non-haz- ardous voltages, there are situations where hazardous conditions may be present. This product is intended for use by qualifi ed personnel who recog- nize shock hazards and are familiar with the safety precautions re- quired to avoid possible injury.

19、 Read the operating information carefully before using the product. 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 equipment is operated within its specifi cations and operating limits, and for e

20、n- suring that 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 instru- ment. They must be protected from electric shock and contact with hazardous live circuits. Maintenance personnel pe

21、rform routine procedures on the product to keep it operating, for example, setting the line voltage or replac- ing consumable materials. Maintenance procedures are described in the manual. The procedures explicitly state if the operator may per- form them. Otherwise, they should be performed only by

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

23、 Installation Category I and Installation Category II, as de- scribed in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O sig- nals are Installation Category I and must not be directly connected to mains voltage or to voltage sources wit

24、h high transient over-volt- ages. Installation Category II connections require protection for high transient over-voltages often associated with local AC mains connections. The user should assume all measurement, control, and data I/O connections are for connection to Category I sources un- less oth

25、erwise marked or described in the Manual. 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

26、.4V peak, or 60VDC are present. A good safety practice is to expect that hazardous voltage 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 prevented access and/or insulated f

27、rom every connection point. In some cases, connections must be exposed to potential human contact. Product users 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 circ

28、uit may be exposed. Do not 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 con- necting sources to switching cards, install protective devices to lim- it fault current

29、and voltage to the card. Before operating an instrument, make sure the line cord is connect- ed 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 pow

30、er cord is restricted, such as rack mounting, a separate main input power dis- connect device must be provided, in close proximity to the equip- ment 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 t

31、he circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jump- ers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers. Do not touch any object that could

32、provide a current path to the com- mon 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 it

33、s specifi cations and operating instructions or the safety of the equip- ment may be impaired. Do not exceed the maximum signal levels of the instruments and ac- cessories, as defi ned in the specifi cations and operating informa- tion, and as shown on the instrument or test fi xture panels, or swit

34、ching card. When fuses 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 cl

35、osed while power is ap- 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 re- fer to the operati

36、ng instructions located in the manual. The symbol on an instrument shows that it can source or mea- sure 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 WARNING heading in a manua

37、l explains dangers that might 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 the instrument. Such damage may invalidate the warranty. Instrumenta

38、tion 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, test leads, and input jacks, must b

39、e purchased from Keithley Instru- ments. 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 the original component. (Note that

40、 se- lected 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 instrument, use a damp cloth or mild,

41、 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 installation into a computer) shou

42、ld never require cleaning if handled according to in- structions. If the board becomes contaminated and operation is af- fected, the board should be returned to the factory for proper cleaning/servicing. ! 2/01 Table of Contents i 1Performance Verification 1.1Introduction.1-1 1.2Environmental conditions.1-1 1.3Warm-up period.1-1 1.4Line power .1-1 1.5Recommended test equipment.1-2 1.6Verification limits.1-2 1.7Restoring default conditions .1-2 1.8Verification procedures.1-4 1.8.1DC volts verification.1-4 1.8.2AC volts verification.1-5 1.8.3DC current verification .