KEI 7700, 7702, 7703 User Guide
Contents
1. Responsible body is the individual or group responsible for the use and maintenance of equipment for ensuring that the equipment is operated within its specifications and 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 circuits Maintenance personnel perform 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 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 Keithley products are designed for use with electrical signals that are 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 with high transient over voltages Measurement Category II conne2. CH8 L H CH9 L H CH10 L H H CH12 CH13 L H CH14 L H 15 L H CH16 L H CH17 L H CH18 L H CH19 L H CH20 L AMPS21 AMPS22 Model 7702 connections and wiring The Model 7702 is a 40 channel differential multiplexer module with the following features e 2 wire or 4 wire Q measurement automatically pairs switches for four wire measurements n 20 Two protected channels for current measurements external shunts not required Temperature applications RTD thermistor thermocouple Latching type relays relays hold their position after power is removed Screw terminal connections Designed specifically for use with Keithley s Models 2700 2701 2750 2790 Systems Connection information WARNING The information in this section is intended for qualified service personnel Do not attempt to perform this procedure unless qualified to do so Do not exceed the maximum specifications for the Model 7702 Connections to DMM functions are provided through the card backplane connector Current provided for through two protected channels Channels 41 and 42 NPUT connections SENSE O4 Wire connections AMP and LO common connections to the DMM are also provided Wiring procedure WARNING The information in this section is intended for qualified service personnel Do not attempt to perform this procedure unless qualified to do so Use the following procedure to wire the
3. Model 7700 screw terminal channel designations INPUT SENSE CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 HL HL HL HL HL HL HL CH CH5 C ANAN UE dn Cable tie holes U izzizizizziziziztzizizizr 06 M A A A 121242 UL V 2 WIRE rd ponen d L A eM d 3 CR OHMS 4 WIRE V 11 BAX 18N CPNO EEE K da Geb Bank t Cable tie holes HLHLOeOHLHLHLHLHLHL CH21 CH22 gt 11 CH12 CH13 CH14 CHI5 16 CH17 CH18 CH19 CH20 Wiring procedure WARNING information in this section is intended for qualified service personnel Do not attempt to perform this procedure unless qualified to do so Use the following procedure to wire the Model 7700 module Make all connections using correct wire size up to 20 AWG Also make sure to add supplementary insulation around the harness for voltages above 42V peak see Figure 3 4 3 6 WARNING wiring must be rated for the maximum voltage in the system For example if 1000V is applied to the front terminals of the Models 2700 2701 or 2750 the plug in module wiring must be rated for 1000V Make sure all power is discharged from the Model 7
4. 18 C amp 28 50 C Mainframe Temp ENVIRONMENTAL OPERATING ENVIRONMENT Specified for 0 C to 50 C Specified to 80 R H at 35 C STORAGE ENVIRONMENT 25 C to 65 C WEIGHT 0 45kg 1 lb HI Card Input LO HI Card Sense Channel 1 LO Channels 2 9 HI Channel 10 Cold junction x3 HI Channel 11 Channels 12 19 Channel 20 Channel 22 LO Channel 25 see Note Backplane isolation O O O Input O O o LO Channel 24 see Note Backplane isolation To Model 27xx Backplane Channels 23 25 in this schematic refer to the designations used for control and not actual available channels For more information refer to the ROUTe MULTiple command section in the Model 2700 User s Manual Channels 24 and 25 can be individually controlled using ROUTe MULTiple if the module is not to be connected to the internal DMM HW 10 10 02 Rev B 7702 40 Channel Differential Multiplexer 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 electromechanical ACTUATION TIME lt 3ms CAPABILITIES CHANNELS 1 40 Multiplex one of 40 2 pole or one of 20 4 pole signals into DMM CHANNELS 41 42 Multiplex one of 2 2 pole current signals into DMM INPUTS MAXIMUM SIGNAL LEVEL Channels 1 40 300V DC or rms 1A switched 60W 125VA m
5. Model 7702 module Make all connections using correct wire size up to 20 AWG Also make sure to add supplementary insulation around the harness for voltages above 42V peak see Figure 5 WARNING wiring must be rated for the maximum voltage in the system For example if 1000V is applied to the front terminals of the Models 2700 2701 2750 or 2790 the plug in module wiring must be rated for 1000V Make sure all power is discharged from the Model 7702 module 2 Access the screw terminals see Screw terminal access located at the front of this document 3 Using a small flat blade screwdriver loosen terminal screws and install wires as desired Figure 5 shows connections to the Input and Sense 4 Route wire along wire path and secure with cable ties as shown 5 Hill in a copy of the connection log and affix it to the module cover 6 Close and lock the cover Figure 4 Model 7702 Screw terminal channel designations CH4 CH6 CH8 CHi0 CHI2 CH14 CH16 m ud DD 18 CH5 CH7 CH9 CH11 CH13 CH15 CH17 HL CH3 HL HL HL H L H L uL 1n CH19 HL CH2 N CH20 HL CH1 H
6. electric shock and fire replacement components 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 purchased 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 Keithley Instruments office 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 board 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 15 af fected the board should be returned to the factory for proper cleaning servicing 7700 20 Channel Differential Multiplexer w Automatic CJC GENERAL 20 CHANNELS 20 channels of 2 pole relay input All channels config urable to 4 pole 2 CHANNELS 2 channels of current only input RELAY TYPE Latching elec
7. to unlock and open the cover Press in the access screw to lock Figure 1 Screw terminal access LOCK Model 7700 connections and wiring The Model 7700 is a 20 channel differential multiplexer module with the following features e 2 wire or 4 wire 2 measurement automatically pairs switches for four wire measurements n 10 Screw terminal connections Temperature applications RTD thermistor thermocouple Two protected channels for current measurements external shunts not required Built in cold junction reference Latching type relays relays hold their position after power is removed Designed specifically for use with Keithley s Models 2700 2701 and 2750 Systems Connection information WARNING The information in this section is intended for qualified service personnel Do not attempt to perform this procedure unless qualified to do so Do not exceed the maximum specifications for the Mo del 7700 Connections to DMM functions are provided through the card backplane connector Current provided for through two protected channels Channels 21 and 22 INPUT connections SENSE O4 Wire connections AMP and LO common connections to the DMM are also provided Figure 2
8. 23 L L H H CH8 CH24 L L H H CH9 CH25 L L H H CH10 CH26 L L H H CH27 E L H H CH12 CH28 L L H H CH13 CH29 L L H H CH14 CH30 L L H H CH15 CH31 L L H H CH16 CH32 L L 12 Specifications are subject to change without notice All Keithley trademarks and trade names are the property of Keithley Instruments Inc All other trademarks and trade names are the property of their respective companies KEI I HLEY A GREATER MEASURE OF CONFIDENCE Keithley Instruments Inc Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139 440 248 0400 Fax 440 248 6168 1 888 KEITHLEY 534 8453 www keithley com Belgium Sint Pieters Leeuw 02 363 00 40 Fax 02 363 00 64 www keithley nl China Beijing 8610 82251886 Fax 8610 82251892 www keithley com cn Finland Helsinki 09 5306 6560 Fax 09 5306 6565 www keithley com France Palaiseau C dex 01 64 53 20 20 Fax 01 60 11 77 26 www keithley fr Germany Germering 089 84 93 07 40 Fax 089 84 93 07 34 www keithley de Great Britain Theale 0118 929 7500 Fax 0118 929 7519 www keithley co uk India Bangalore 080 212 8027 Fax 080 212 8005 www keithley com Italy Milano 02 48 39 16 01 Fax 02 48 30 22 74 www keithley it Japan Tokyo 81 3 5733 7555 Fax 81 3 5733 7556 www keithley jp Korea Seoul 82 2 574 7778 Fax 82 2 574 7838 www keithley com Netherla
9. 5 080 212 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 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 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 mias Safety Precautions The following safety precautions should be observed before 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 qualified personnel who recog nize shock 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 specifications If the product is used in a manner not specified the protection pro vided by the product may be impaired The types of product users are
10. 700 module Access the screw terminals see Screw terminal access located at the front of this document Using a small flat blade screwdriver loosen terminal screws and install wires as desired Figure 3 shows connections to channels 1 and 2 Route wire along wire path and secure with cable tie as shown Fill in a copy of the connection log and affix it to the module cover Close and lock the cover Figure 3 Wire dressing Model 7700 io 7 H 27 CATA Y y zie P P P ME AO v2 WIRE eee oF HLJLJILJLI Qe j o m S L 5 1 3 LY 0 eM Y 5 IS Ly SO NO Ww i m 5 AAAAAAAZ SENSE V Supplementary OHMS 4 WIRE Insulation L LH L 1 1 DUI Gwis 20 L LH L L B Chet 2 9 CH11 12 CHi3 DRE 5 Connection log Make a copy of Table 1 and affix it to the cover of the Model 7700 Use this to record connection information and channel descriptions as needed Table 1 Connection log Model 7700 INPUT H L H SENSE L H CHI L H CH2 L H CH3 L H CHA L H CH5 L H CH6 L H CH7 L H
11. ENT Specified for 0 C to 50 C Specified to 40 R H at 35 C STORAGE ENVIRONMENT 25 C to 65 C WEIGHT 0 8kg 1 75 lbs HI Card Input LO HI Card Sense LO HI Channel 1 LO Channels 2 15 HI o oT Channel 16 Lo ooo Channel 35 2 Pole Closed 4 Pole Open see Note HI o of o Channel 17 LO A Channels 18 31 5 HI o oT o Channel 32 Channel 33 see Note 0 0 Backplane O O o LO Model 2700 Backplane Channel 34 see Note o1 Backplane isolation Sense Oo 0 oLO Channels 33 35 in this schematic refer to the designations used for control and not actual available channels For more information refer to the ROUTE MULT command section in the Model 2700 User s Manual KEITHLEY ca Model 7700 7702 and 7703 Multiplexer Modules eithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 User 5 G u ide 440 248 0400 Fax 440 248 6168 www keithley com Introduction WARNING _ Connection and wiring procedures contained in this User s Guide are intended for use by qualified service personnel only Do not perform these procedures unless qualified to do so Failure to recognize and observe normal safety precautions could result in personal injury or death This document contains information specific to the Models 7700 7702 and 7703 multiplexer modules These module
12. IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE THE REMEDIES PRO VIDED HEREIN ARE BUYER S 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 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 TO PROPERTY KEITHLEY Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 440 248 0400 Fax 440 248 6168 1 888 KEITHLEY 534 8453 www keithley com Sales Offices 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 82251886 Fax 8610 82251892 FINLAND Halsuantie 2 00420 Helsinki Finland 09 53 06 65 60 Fax 09 53 06 65 65 FRANCE 3 all e des Garays 91127 Palaiseau C dex 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 Brunel Road Theale Berkshire RG7 4AB 0118 929 75 00 Fax 0118 929 75 19 INDIA 1 5 Eagles Street Langford Town Bangalore 560 02
13. L i Se 122 HAZ L Dnm oum an 121 HL CH21 HL CH40 CH22 de HL HL H CH26 HL HL d CH23 L ult 14 a Nm 25 CH31 CH35 37 INPUT SENEE HL ET Figure 5 Wire dressing Model 7702 Cable tie 2 places AS 5 899 9 eSupplementary Insulation Connection log Make a copy of Table 2 and affix it to the cover of the Model 7702 Use this to record connection information and channel descriptions as needed Table 2 Connection log Model 7702 Color INPUT SENSE CH21 CH22 CH23 CH24 CH25 CH26 CH27 CH28 CH29 CH30 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH31 11 CH32 CH33 CH12 CH13 CH34 CH14 CH35 CH36 CH15 CH16 CH37 CH17 CH38 CH39 CH18 CH19 CH40 CH20 541 542 Model 7703 connections and wiring The Model 7703 is a 32 channel high speed differential multiplexer module with the following features 2 wire or 4 wire Q measurement automatically pairs switches for four wire measurements n 16 50 pin D Shell connectors 2 x DB50 Temperature applicati
14. Model 7 00 7702 7 03 Multiplexer Modules User s Guide PA 695 Rev C 8 03 A GR Rey MEAS U Rie ONFIDENCE WARRANTY Keithley Instruments Inc warrants this product to be free from defects in material and workmanship for a period of year from date 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 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 product 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 modification without Keithley s express written consent or misuse 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
15. aximum Channels 41 42 60V DC or 30V rms 3A switched 60W 125VA maxi mum CONTACT LIFE typ gt 10 operations at max signal level gt 108 operations cold switching CONTACT RESISTANCE lt 1Q at end of contact life CONTACT POTENTIAL lt 500nV typical per contact 1uV max lt 500nV typical per contact pair max OFFSET CURRENT lt 100pA CONNECTOR TYPE Screw terminal 20 AWG wire size ISOLATION BETWEEN ANY TWO TERMINALS gt 10190 lt 100pE ISOLATION BETWEEN ANY TERMINAL AND EARTH gt 10 Q lt 200pE CROSS TALK 10MHz 500 Load lt 40dB INSERTION LOSS 500 Source 500 Load lt 0 1dB below 1MHz lt 3dB below 2MHz COMMON MODE VOLTAGE 300V between any terminal and chassis ENVIRONMENTAL OPERATING ENVIRONMENT Specified for 0 C to 50 C Specified to 80 R H at 35 C STORAGE ENVIRONMENT 25 to 65 C WEIGHT 0 5kg 1 1 Ib Specifications subject to change without notice HI Card Input LO HI Card Sense LO HI Channel 1 LO Channels 2 19 HI LO O O O O Channel 43 O 2 Pole Open 4 Pole Closed 4 see Note O HI Channel 21 LO Channels 22 39 HI O Channel 40 LO 3A HI oo O O Channel 41 d LO o HI 06 Channel 42 LO O Channel 45 see Note Backplane isolation o 0 0 HI Input O O o LO Channel 44 see Note Backplane isolation O HI Sense 10 To Model 2700 Backp
16. ctions 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 described in the Manual Exercise extreme caution when a shock hazard is present Lethal voltage may be present on cable connector jacks or test fixtures 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 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 every 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 circuit 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 and voltage to the card Before
17. in the schematic provided at the beginning of this user s guide Model 7703 This module is also similar to the Model 7700 Differences include the number of available channels and the Model 7703 does support amps measurements Model 7700 operation is covered in Section 2 of the Models 2700 2701 and 2750 User s Manuals Channel number designations for the Model 7703 are provided at the end of this User s Guide PA 695 Rev C 8 03 Amps measurements The 7703 module does not support amps measurements System channel operation cannot be used to close channels while an amps function DCI or ICI is selected See the Model 27xx Manual for details amps function DCI or ACI is selected and you attempt to close a system channel the message NO AMPS CHAN will be displayed briefly For remote programming error 222 Parameter data out of range is generated Ifasystem channel is already closed and you attempt to select the DCI or ACI function the message INVALID FUNC will be displayed briefly For remote programming error 221 Settings conflict is generated Making amps measurements In order to perform amps measurements you must use the front panel inputs of the 27xx mainframe You can still use the 7703 module for other aspects of the test such as controlling a bias supply for DUT but you must use multiple channel operation to close channels Screw terminal access Model 7700 and 7702 Turn the access screw
18. ing card When fuses are used in a product replace with same type and rating for continued protection against fire 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 fixture keep the lid closed while power is ap plied to the device under test Safe operation requires the use of a lid interlock 5 03 Ifa screw is present connect it to safety earth ground using the wire recommended in the user documentation The N symbol on an instrument indicates that the user should re fer to the operating instructions located in the manual The symbol an instrument shows that it can source 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 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 explains 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
19. ions 10 CAUTION If both connectors P1017 and P1016 not used install the extra Model 7788 50 pin D shell as a plug on the open connector see Figure 7 If the connector is left open an electrical shock hazard may be present l Figure 7 e e e Supplementary insulation and plugging an unused connector uu c rc EA MEC EE rU equas cum a Te YM NEUR CANAS zc LL ie 1274 16666666666666666 OJ 24 E EAS vol 1 A A UF Install plug unused Model 7788 in MON unused connector Supplementary Insulation Table 3 Model 7703 channel designations Sense HI Sense LO Input HI Input LO 1 HI 1LO 2 HI 2LO 3 HI 3 LO 4 HI 4LO 11 Connection log Make a copy of Table 4 and affix it to the cover of the Model 7703 Use this to record connection information and channel descriptions as needed Table 4 Connection log Model 7703 Description H L H SENSE L H H L L H H CH2 CH18 L L H H CH3 CH19 L L H H CH4 CH20 L L H H 5 21 L L H H CH6 CH22 L L H H CH7 CH
20. lane Channels 43 45 in this schematic refer to the designations used for control and not actual available channels For more information refer to the ROUTe MULTiple command section in the Model 2700 User s Manual Channels 44 and 45 can be individually controlled using ROUTe MULTiple ifthe module is not to be connected to the internal DMM Rev A 7703 32 Channel High Speed Differential Multiplexer GENERAL 32 CHANNELS 32 channels of 2 pole relay input All channels configurable to 4 pole RELAY TYPE Reed ACTUATION TIME lt 1 ms CAPABILITIES CHANNELS 1 32 Multiplex one of 32 2 pole or one of 16 4 pole signals into DMM INPUTS MAXIMUM SIGNAL LEVEL Channels 1 32 300V DC rms 0 5A switched 10W maximum Contact Life typ gt 5x10 operations at max signal level gt 108 operations cold switching CONTACT RESISTANCE lt 1Q at end of contact life CONTACT POTENTIAL lt 3pV typical per contact 6uV max lt 3pV typical per contact pair 6uV max OFFSET CURRENT lt 100 CONNECTOR TYPE 50 pin D sub x 2 RELAY DRIVE CURRENT 20mA per channel ISOLATION BETWEEN ANY TWO TERMINALS gt 10 0 lt 200pE ISOLATION BETWEEN ANY TERMINAL AND EARTH gt 10 Q lt 400 CROSS TALK 1 MHz 500 Load lt 40dB INSERTION LOSS 500 Source 500 Load 0 35dB below 1MHz 3dB below 2MHz COMMON MODE VOLTAGE 300V between any terminal and chassis ENVIRONMENTAL OPERATING ENVIRONM
21. nds Gorinchem 0183 635333 Fax 0183 630821 www keithley nl Singapore Singapore 65 6747 9077 Fax 65 6747 2991 www keithley com Sweden Solna 08 509 04 600 Fax 08 655 26 10 www keithley com Taiwan Hsinchu 886 3 572 9077 Fax 886 3 572 9031 www keithley com tw Copyright 2003 Keithley Instruments Inc Printed in the U S A 9 03
22. ons RTD or thermistor High speed non latching reed relays relays go to open state after power is removed or RST Designed specifically for use with Keithley s Models 2700 2701 and 2750 Systems NOTE The 50 pin D Shell connector mates with Model 7788 Card configuration connections WARNING The information in this section is intended for qualified service personnel Do not attempt to perform this procedure unless qualified to do so Do not exceed the maximum specifications for the Model 7703 module NOTE When looking at the rear connectors of the Model 7703 module the connector on the left is P1017 and the connector on the right is P1016 Figure 6 Rear view Model 7703 Pinouts P1016 and P1017 P1017 P1016 1 1 00000000000000000 00000000000000000 33 0000000000000000 18 O 33 0000000000000000 18 50 594 50 Make all connections using correct wire size up to 20 AWG Also make sure to add supplementary insulation around the har ness for voltages above 42V peak see Figure 7 WARNING wiring must be rated for the maximum voltage in the system For example if 1000V is applied to the front terminals of the Models 2700 2701 or 2750 the plug in module wiring must be rated for 1000V Make all connections using correct wire size up to 20 AWG refer to the Model 7788 documentation for specific wiring instruct
23. 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 power 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 the 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 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 its specifications 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 defined in the specifications and operating informa tion and as shown on the instrument or test fixture panels or switch
24. s can be used in the following Model 27xx DMM mainframes e 7700 Module This module can be used in Model 2700 2701 and 2750 mainframes 7702 Module This module can be used in Model 2700 2701 2750 and 2790 mainframes e 7703 Module This module can be used in Model 2700 2701 and 2750 mainframes All references to the Model 27xx apply to the Models 2700 2701 and 2750 If you have any guestions after reviewing this information please contact your local Keithley representative or call our Applications Engineers at 1 888 KEITHLEY 1 888 543 5483 U S only or Telefax 440 498 2990 Instrument Products WARNING Before operating the Model 27xx with an accessory card verify that the card is properly installed and the mounting screws are tightly fastened If the mounting screws are not properly connected an electrical shock hazard may be present Operation Model 7700 Operation of the Model 7700 module is covered in Section 2 of the Models 2700 2701 and 2750 User s Manuals Model 7702 Except for the number of available switching channels and channel number designations operation of the Model 7702 is the same as operation for the Model 7700 Model 7700 operation is covered in Section 2 of the Models 2700 2701 and 2750 User s Manuals Model 7702 operation is also covered in Section 2 of the Model 2790 Reference Manual and Section 3 of the Model 2790 User s Manual Channel number designations for the Model 7702 is provided
25. tromechanical ACTUATION TIME lt 3ms CAPABILITIES CHANNELS 1 20 Multiplex one of 20 2 pole or one of 10 4 pole signals into DMM CHANNELS 21 22 Multiplex one of 2 2 pole current signals into DMM INPUTS MAXIMUM SIGNAL LEVEL Channels 1 20 300V DC or 300V rms 42 5V peak for AC waveforms 1A switched 60W 125VA maximum Channels 21 22 60V DC or 30V rms 3A switched 60W 125VA maxi mum CONTACT LIFE typ gt 10 operations at max signal level gt 108 operations cold switching CONTACT RESISTANCE lt 10 at end of contact life CONTACT POTENTIAL lt 500nV typical per contact max lt 500nV typical per contact pair max OFFSET CURRENT lt 100pA CONNECTOR TYPE Screw terminal 20 AWG wire size ISOLATION BETWEEN ANY TWO TERMINALS gt 10 Q lt 100 ISOLATION BETWEEN ANY TERMINAL AND EARTH gt 1099 lt 200pE CROSS TALK 500 Load w Internal DMM _ w o Internal DMM 10MHz lt 40dB lt 40dB 25MHz d 25dB Channels 24 and 25 are open Refer to ROUTe MULTiple command in 27xx User s manual Not valid INSERTION LOSS 500 Source 500 Load w Internal DMM w o Internal DMM lt 0 1dB 1MHz 1MHz lt 3db 2MHz 50MHz Channels 24 and 25 are open Refer to ROUTe MULTiple command in 27xx User s 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 0 C 18 28 C Mainframe Temp 1 5 C 0
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