KEI 7700, 7702, 7703 User Guide 电路图.pdf

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1、Model 7700, 7702, and 7703 Multiplexer Modules Users Guide PA-695 Rev. C / 8-03 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

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 e

3、xercise 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 product

4、 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 misus

5、e 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 IMPLI

6、ED 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 THE

7、 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 DAMAGE

8、 TO PROPERTY. Keithley Instruments, 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, Dewa

9、i, Madian Beijing 100029 8610-82251886 Fax: 8610-82251892 FINLAND: Halsuantie 2 00420 Helsinki, Finland 09-53 06 65 60 Fax: 09-53 06 65 65 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

10、 07-34 GREAT BRITAIN: Unit 2 Commerce Park, Brunel Road Theale, Berkshire RG7 4AB 0118 -929 75 00 Fax: 0118- 929 75 19 INDIA: 1/5, Eagles Street Langford Town Bangalore 560 025 080 212 80-27 Fax: 080 212 80 05 ITALY: Viale San Gimignano, 38 20146 Milano 02-48 39 16 01 Fax: 02-48 30 22 74 JAPAN: New

11、Pier Takeshiba North Tower 13F 11-1, Kaigan 1-chome Minato-ku, Tokyo 105-0022 81-3-5733-7555 Fax: 81-3-5733-7556 KOREA: 2FL., URI Building 2-14 Yangjae-Dong Seocho-Gu, Seoul 137-888 82-2-574-7778 Fax: 82-2-574-7838 NETHERLANDS: Postbus 559 4200 AN Gorinchem 0183-63 53 33 Fax: 0183-63 08 21 SWEDEN: c

12、/o Regus Business Centre Frosundaviks All 15, 4tr 16970 Solna 08-50 90 46 00 Fax: 08-655 26 10 TAIWAN: 13F-3, NO. 6, Lane 99, Pu-Ding Road, Hsinchu, Taiwan, ROC. 886-3-572-9077 Fax: 886-3-572-9031 5/03 RadioFans.CN 收音机爱 好者资料库 Safety Precautions The following safety precautions should be observed bef

13、ore using this product and any associated instrumentation. 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

14、hazards and are familiar with the safety precautions re- quired to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the manual for complete product specifi cations. If the product is used in a manner not spec

15、ifi ed, the protection pro- vided 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 equipment is operated within its specifi cations and operating limits, and for en-

16、 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 perf

17、orm routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are de- scribed in the manual. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed on

18、ly 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. Keithley products are designed for use with electrical signals that are

19、rated Measurement Category I and Measurement Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O sig- nals are Measurement Category I and must not be directly connect- ed to mains voltage or to voltage sources w

20、ith high transient over- 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 other- wise marked or

21、 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, 42.4V peak, or 60V

22、DC are present. A good 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 pre- vented access and/or insulated from ev

23、ery connection point. In some cases, connections must be exposed to potential human con- tact. 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 circ

24、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

25、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

26、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

27、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

28、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

29、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

30、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

31、osed while power is ap- plied to the device under test. Safe operation requires the use of a lid interlock. 5/03 RadioFans.CN 收音机爱 好者资料库 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

32、should re- fer to the operating 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. T

33、he symbol indicates a connection terminal to the equipment frame. The WARNING heading in a manual 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 explain

34、s hazards that could damage the instrument. Such damage may 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 co

35、mponents in mains circuits, including the power transformer, test leads, and input jacks, must be 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 pur

36、chased from other suppliers as long as they are equivalent to the original component. (Note that 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

37、 Keithley Instruments offi ce for information. To clean an instrument, 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 bo

38、ard with no case or chassis (e.g., data acquisition board for installation into a computer) should 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.

39、! Keithley Instruments, Inc. Cleveland, Ohio 44139 DRN. CKD. APP. DATE DATE DATE PART NUMBER LTRREVISIONSAPP. DATE FORM 28777A-SBG BRUNING 40-21 62198-SBG PURCHASED ITEM SPECIFICATIONS HW 10/10/02 Rev. B GENERAL 20 CHANNELS: 20 channels of 2-pole relay input. All channels config- urable to 4-pole. 2

40、 CHANNELS: 2 channels of current only input. RELAY TYPE: Latching electromechanical. ACTUATION TIME: 105operations at max signal level. 108operations cold switching. CONTACT RESISTANCE: 1 at end of contact life. CONTACT POTENTIAL: 500nV typical per contact, 1V max. 500nV typical per contact pair, 1V

41、 max. OFFSET CURRENT: 1010, 109, 200pF. CROSS TALK (50 Load): w/Internal DMMw/o Internal DMM* 10MHz:40dB-40dB 25MHz:*-25dB * Channels 24 and 25 are open. Refer to ROUTe:MULTiple command in 27xx Users manual. * Not valid INSERTION LOSS (50 Source,50 Load): w/Internal DMMw/o Internal DMM* 0.1dB1MHz1MH

42、z 3db2MHz50MHz * Channels 24 and 25 are open. Refer to ROUTe:MULTiple command in 27xx Users manual. COMMON MODE VOLTAGE: 300V or 300V rms (42.5V peak) for AC wave- forms between any terminal and chassis. T/C COLD JUNCTION: 1.0C (1828C Mainframe Temp) 1.5C (018C & 2850C Mainframe Temp). ENVIRONMENTAL

43、: OPERATING ENVIRONMENT: Specified for 0C to 50C. Specified to 80% R.H. at 35C. STORAGE ENVIRONMENT: 25C to 65C. WEIGHT: 0.45kg (1 lb). Cold junction Ref x3 Channel 1 HI LO Channel 10 HI LO (Channels 29) Channel 11 HI LO Channel 20 HI LO (Channels 1219) Channel 21 HI LO Channel 22 HI LO AMPS HI LO S

44、ense HI LO Input Channel 23 2-Pole (Open) 4-Pole (Closed) (see Note) 3A 3A To Model 27xx Backplane Channel 25 (see Note) Backplane isolation Channel 24 (see Note) Backplane isolation NOTEChannels 2325 in this schematic refer to the designations used for control and not actual available channels. For

45、 more information, refer to the ROUTe:MULTiple command section in the Model 2700 Users Manual. Channels 24 and 25 can be individually controlled using ROUTe:MULTiple if the module is not to be connected to the internal DMM. Card AMPS LO Card Sense HI LO Card Input HI LO Cold junction Ref x3 7700 20-

46、Channel Differential Multiplexer w/Automatic CJC SPEC-7700 A23775 ReleasedSZ11/31/99 B27663 RevisedSZ9/30/02 SZ CJM 11/30/99 11/30/99 Rev. A GENERAL 40 CHANNELS: 40 channels of 2-pole relay input. All channels configurable to 4-pole. 2 CHANNELS: 2 channels of current only input. RELAY TYPE: Latching

47、 electromechanical. ACTUATION TIME: 105operations at max signal level. 108operations cold switching. CONTACT RESISTANCE: 1 at end of contact life. CONTACT POTENTIAL: 500nV typical per contact, 1V max. 500nV typical per contact pair, 1V max. OFFSET CURRENT: 1010, 109, 200pF. CROSS TALK (10MHz,50 Load

48、): 40dB. INSERTION LOSS (50 Source,50 Load):0.1dB below 1MHz. 3dB below 2MHz. COMMON MODE VOLTAGE: 300V between any terminal and chassis. ENVIRONMENTAL OPERATING ENVIRONMENT: Specified for 0C to 50C. Specified to 80% R.H. at 35C. STORAGE ENVIRONMENT: 25C to 65C. WEIGHT: 0.5kg (1.1 lb). Specification

49、s subject to change without notice. Channel 1 HI LO Channel 20 HI LO (Channels 219) Channel 21 HI LO Channel 40 HI LO (Channels 2239) Channel 41 HI LO Channel 42 HI LO AMPS HI LO Sense HI LO Input Channel 43 2-Pole (Open) 4-Pole (Closed) (see Note) 3A 3A To Model 2700 Backplane Channel 45 (see Note) Backplane isolation Channel 44 (see Note) Backplane isolation NOTEChannels 4345 in this schematic refer to the designa