KEI 7012S Operating & Service 电路图.pdf

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1、Instruction Manual Contains Operating and Servicing Information Models 7012-S and 7012-C 4 10 Matrix Cards 7012-901-01 Rev. B / 11-93 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

2、 of shipment. Keithley Instruments, 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

3、exercise this warranty, write or 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 produc

4、t returned, transportation prepaid. 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 misu

5、se of any product or part. This 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, INCLUDING ANY IMPL

6、IED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES PRO- VIDED 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 TH

7、E USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. 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 DAMAG

8、E TO PROPERTY. Keithley Instruments, Inc. 28775 Aurora Road Cleveland, OH 44139 440-248-0400 Fax: 440-248-6168 BELGIUM:Keithley Instruments B.V. Bergensesteenweg 709 B-1600 Sint-Pieters-Leeuw 02/363 00 40 Fax: 02/363 00 64 CHINA:Keithley Instruments China Yuan Chen Xin Building, Room 705 12 Yumin Ro

9、ad, Dewai, Madian Beijing 100029 8610-62022886 Fax: 8610-62022892 FRANCE:Keithley Instruments Sarl B.P. 60 3, alle des Garays 91122 Palaiseau Cdex 01 64 53 20 20 Fax: 01 60 11 77 26 GERMANY:Keithley Instruments GmbH Landsberger Strasse 65 D-82110 Germering 089/84 93 07-40 Fax: 089/84 93 07-34 GREAT

10、BRITAIN:Keithley Instruments Ltd The Minster 58 Portman Road Reading, Berkshire RG30 1EA 0118-9 57 56 66 Fax: 0118-9 59 64 69 INDIA:Keithley Instruments GmbH Flat 2B, WILOCRISSA 14, Rest House Crescent Bangalore 560 001 91-80-509-1320/21 Fax: 91-80-509-1322 ITALY:Keithley Instruments s.r.l. Viale S.

11、 Gimignano, 38 20146 Milano 02/48 30 30 08 Fax: 02/48 30 22 74 NETHERLANDS:Keithley Instruments B.V. Postbus 559 4200 AN Gorinchem 0183-635333 Fax: 0183-630821 SWITZERLAND:Keithley Instruments SA Kriesbachstrasse 4 8600 Dbendorf 01-821 94 44 Fax: 01-820 30 81 TAIWAN:Keithley Instruments Taiwan 1 Fl.

12、 85 Po Ai Street Hsinchu, Taiwan, R.O.C. 886-3572-9077 Fax: 886-3572-903 10/99 RadioFans.CN 收音机爱 好者资料库 Models 7012-S and 7012-C Instruction Manual 1991, Keithley Instruments, Inc. All Rights Reserved Cleveland, Ohio, U. S. A. RadioFans.CN 收音机爱 好者资料库 New Contact Information Keithley Instruments, Inc.

13、 28775 Aurora Road Cleveland, OH 44139 Technical Support: 1-888-KEITHLEY Monday Friday 8:00 a.m. to 5:00 p.m (EST) Fax: (440) 248-6168 Visit our website at Manual Print History The print history shown below lists the printing dates of all Revisions and Addenda created for this manual. The Revision L

14、evel letter increases alphabetically as the manual undergoes subsequent updates. Addenda, 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 Ad

15、denda 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. Many product updates and revisions do not require manual changes and, conversely, manual corrections may be done wit

16、hout accompanying product changes. Therefore, it is recommended that you review the Manual Update History. Revision A (Document Number 7012-901-01) .November 1991 Addendum A (Document Number 7012-901-02).January 1992 Revision B (Document Number 7012-901-01).November 1993 All Keithley product names a

17、re trademarks or registered trademarks 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.

18、Although some in- struments and 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- qu

19、ired to avoid possible injury. 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 a

20、nd operating limits, and for en- 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 circ

21、uits. Maintenance personnel perform 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, th

22、ey should be performed only by 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. Exercise extreme caution when a shock hazard is

23、 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 safety practice is to expect that hazardous voltag

24、e 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 from every connection point. In some cases, connections must be exposed to potential human

25、 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 circuit may be exposed. As described in the International Electrotechnical Commission (IEC) S

26、tandard IEC 664, digital multimeter measuring circuits (e.g., Keithley Models 175A, 199, 2000, 2001, 2002, and 2010) are Installation Category II. All other instruments signal terminals are Installation Category I and must not be connected to mains. Do not connect switching cards directly to unlimit

27、ed power circuits. They are intended to be used with impedance limited sources. NEV- ER 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 operating an instrument, make sure the l

28、ine 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. For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit unde

29、r 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 provide a curre

30、nt 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 cations

31、 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 switching card. When

32、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 closed while power

33、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 operating instructions l

34、ocated 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 manual explains danger

35、s 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. Instrumentation and accessor

36、ies 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 be purchased from

37、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 se- lected parts

38、 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, water based clea

39、n- er. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the in- strument. Products that consist of a circuit board with no case or chassis (e.g., data acquisition board for installation into a computer) should never requ

40、ire cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servic- ing. ! Rev.10/99 MODEL 7012-S 410 Matrix with Screw Terminals. MODEL 7012-C 410 Matrix with Mass Terminated Connecto

41、r. MATRIX CONFIGURATION: 4 rows by 10 columns. Jumpers can be removed to isolate any row from the backplane. CONTACT CONFIGURATION: 2-pole Form A (Hi, Lo). CONNECTOR TYPE: 7012-S:Screw terminal, #16AWG maximum wire size, with .092 inch O.D. 28 Conductors maximum. #22AWG typical wire size with .062 i

42、nch O.D. 88 Conductor maximum. 7012-C:96-Pin male Euro card connector. Mates to female twisted wire cable, crimp or solder connector. MAXIMUM SIGNAL LEVEL: DC Signals: 110V DC between any two pins, 1A switched. 30VA (resistive load). AC Signals: 125V RMS or 175V AC peak, between any two pins, 1A swi

43、tched, 60VA (resistive load). COMMON MODE VOLTAGE: 175V peak, any pin to chassis. CONTACT LIFE: Cold Switching: 108 closures. At Maximum Signal Levels: 105 closures. CHANNEL RESISTANCE (per conductor): 1. CONTACT POTENTIAL: 7012-S: 500 nV per contact pair (Hi, Lo). 1.5 V per single contact. 7012-C:

44、1 V per contact pair (Hi, Lo). 3 V per single contact. OFFSET CURRENT: 109, 109, 109, 400 pF. CROSS TALK (1MHz, 50 Load): -40 dB. INSERTION LOSS (50 Source, 50 Load): 0.1dB below 1MHz, 3 dB below 2MHz. RELAY DRIVE CURRENT (per relay): 16mA. ENVIRONMENT: Operation:0C to 50C, up to 35C Backplane Backp

45、lane Backplane Backplane J J J J J J J J Matrix CrosspointMatrix Crosspoint HI LO Table of Contents 1.1 Introduction . 1-1 1.2 Features. 1-1 1.3 Warranty information. 1-2 1.4 Manual addenda . 1-2 1.5 Safety symbols and terms . 1-2 1.6 Specifications . 1-2 1.7 Unpacking and inspection. 1-2 1.7.1 Inspection for damage.