Keithley 3700 series User manual

www.keithley.com
A GREATER MEASURE OF CONFIDENCE
Series 3700 System Switch/Multimeter
Reference Manual
3700S-901-01 Rev. A / August 2007
www.keithley.com
A GREATER MEASURE OF CONFIDENCE
Series 3700 System Switch/Multimeter
Reference Manual
3700S-901-01 Rev. A / August 2007
3700S-901-01.qxd 8/10/07 3:25 PM Page 1

A G R E A T E R 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: [phone] • 1-888-KEITHLEY (1-888-534-8453) • www.keithley.com
3/07
WARRANTY
Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of
one (1) year from date of shipment.
Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables,
software, rechargeable batteries, diskettes, and documentation.
During the warranty period, Keithley Instruments will, at its option, either repair or replace any product that proves
to be defective.
To exercise this warranty, write or call your local Keithley Instruments representative, or contact
Keithley Instruments 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 Instruments’ 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
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES
PROVIDED 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 LIMITED TO: COST OF REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF
INJURY TO ANY PERSON, OR DAMAGE TO PROPERTY.

System Switch/Multimeter
Reference Manual
©2007, Keithley Instruments, Inc.
All rights reserved.
Cleveland, Ohio, U.S.A.
Document Number: 3700S-901-01 Rev. A / August 2007
Series 3700

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, 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 Revision of the manual. Each
new Revision includes a revised copy of this print history page.
Document Number: 3700S-901-01Rev. A .........................................August 2007
All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments, Inc.
Other brand names are trademarks or registered trademarks of their respective holders.

Safety Precautions
06/07
The following safety precautions should be observed before 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 qualified personnel who recognize shock hazards and are familiar with the safety precautions required
to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer
to the user documentation for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product warranty 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 specifications and operating limits, and for ensuring 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 instrument.
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 described in the user documentation. 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, perform safe installations, and repair products. Only properly trained service
personnel may perform installation and service procedures.
Keithley Instruments 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 signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with 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 arefor connection to Category I sources unless otherwise
marked or described in the user documentation.
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
prevented access and/or insulated from every connection point. In 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 1000V, 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 connecting sources to switching cards, install protective devices to limit fault current
and voltage to the card.
Before operating an instrument, ensure that 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 rack 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 power from the entire test system and discharge any capacitors before: connecting or disconnecting 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 current 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 specifications 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 defined in the specifications and operating information,
and as shown on the instrument or test fixture panels, or switching card.
When fuses are used in a product, replace with the 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 applied 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 the user documentaion.
The symbol on an instrument shows that it can source or measure 1000V 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 on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns.
The symbol indicates a connection terminal to the equipment frame.
If this symbol is on a product , it indicates that mercury is present in the display lamp. Please note that the lamp must be properly
disposed of according to federal, state, and local laws.
The WARNING heading in the user documentation 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 the user documentation 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 electric shock and fire, replacement components in mains circuits - including the power transformer, testleads,
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 the original component (note that selected parts should be purchased only through Keithley Instruments to maintain
accuracy and functionality of theproduct). If you are unsure aboutthe applicability ofareplacementcomponent,call aKeithley 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., a data acquisition board for installation into a computer) should never require 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/servicing.
!

Table of Contents
Introduction 1-1
Overview......................................................................................................................1-1
Measure and switching capabilities.................................................................................1-2
Warranty information....................................................................................................1-2
Displaying the unit's serial number..................................................................................1-2
Safety symbols and terms............................................................................................1-3
Specifications...............................................................................................................1-3
TSP Programming Fundamentals 2-1
Test Script Processor (TSP).........................................................................................2-1
Run-time environment..................................................................................................2-2
Queries........................................................................................................................2-2
Scripts..........................................................................................................................2-3
Named scripts..............................................................................................................2-3
Programming overview.................................................................................................2-4
Chunk defined................................................................................................................2-4
Script defined.................................................................................................................2-5
Run-time environment ....................................................................................................2-6
Nonvolatile memory........................................................................................................2-6
TSP programming levels.................................................................................................2-6
Programming model for scripts........................................................................................2-7
Installing the TSP software...........................................................................................2-7
System connections.....................................................................................................2-8
Rear panel summary......................................................................................................2-8
GPIB interface connection ..............................................................................................2-9
Standard RJ-45 (Ethernet) interface connection ............................................................2-10
USB connection ...........................................................................................................2-10
Using Test Script Builder............................................................................................2-10
Project Navigator..........................................................................................................2-11
Script Editor .................................................................................................................2-12
Programming interaction...............................................................................................2-12
Sending commands and statements...........................................................................2-12
Measure voltage ........................................................................................................2-12
Read and write to digital I/O port...................................................................................2-12
Display user-defined messages ....................................................................................2-13
User scripts................................................................................................................2-13
Script examples............................................................................................................2-13
Saving a user script......................................................................................................2-17
Running a user script....................................................................................................2-18
Modifying a user script..................................................................................................2-20
Script management ......................................................................................................2-20

Contents Series 3700 System Switch/Multimeter Reference Manual
ii Document Number: 3700S-901-01 Rev. A / August 2007
Differences: Remote vs. local state ............................................................................2-22
Remote state................................................................................................................2-22
Test script language (TSL) reference..........................................................................2-23
Introduction..................................................................................................................2-23
Variables and types......................................................................................................2-24
Operators.....................................................................................................................2-24
Functions.....................................................................................................................2-25
Tables/arrays...............................................................................................................2-26
Precedence..................................................................................................................2-27
Logical operators..........................................................................................................2-28
Concatenation..............................................................................................................2-29
Branching.....................................................................................................................2-29
Loop control.................................................................................................................2-30
Standard libraries.........................................................................................................2-32
Using the Front Panel 3-1
Front panel introduction................................................................................................3-1
Display.........................................................................................................................3-3
Front panel keys ..........................................................................................................3-6
Special keys and power switch .......................................................................................3-6
Operation keys...............................................................................................................3-7
Range, multifunction keys, and wheel ...........................................................................3-18
Function keys...............................................................................................................3-18
Range, Digits, Rate, Bandwidth, and Filter 4-1
Range..........................................................................................................................4-1
Measurement ranges and maximum readings .................................................................4-1
Manual ranging ..............................................................................................................4-2
Auto ranging over the front panel ....................................................................................4-2
Scanning........................................................................................................................4-3
Range remote programming (ICL)...................................................................................4-3
Digits ICL programming................................................................................................4-3
Scanning........................................................................................................................4-3
Setting digits ..................................................................................................................4-4
Rate.............................................................................................................................4-4
Setting Rate from the front panel.....................................................................................4-5
Setting measurement speed over the bus........................................................................4-5
Bandwidth....................................................................................................................4-6
Filter ............................................................................................................................4-6
Filter characteristics........................................................................................................4-7
Digital filter window.........................................................................................................4-8
Relative, Math, and dB 5-1
Relative........................................................................................................................5-1
Basic front panel operation procedure.............................................................................5-1
REL remote operation.....................................................................................................5-2
Scanning........................................................................................................................5-2

Series 3700 System Switch/Multimeter Reference Manual Contents
Document Number: 3700S-901-01 Rev. A / August 2007 iii
Math ............................................................................................................................5-3
mX+b.............................................................................................................................5-3
Percent..........................................................................................................................5-5
Reciprocal (1/X) .............................................................................................................5-6
dB commands..............................................................................................................5-7
dB configuration.............................................................................................................5-8
dB Scanning...................................................................................................................5-8
Buffer: Data Storage and Retrieval 6-1
Buffer overview............................................................................................................6-1
Front panel operation...................................................................................................6-1
Procedure to store readings............................................................................................6-1
Procedure to save readings............................................................................................6-2
Procedure to clear readings............................................................................................6-2
Recalling readings..........................................................................................................6-3
Buffer configuration (front panel).....................................................................................6-3
Append..........................................................................................................................6-4
Remote buffer operation...............................................................................................6-4
Data store (buffer) commands.........................................................................................6-4
Reading buffers..............................................................................................................6-4
Time and date values.....................................................................................................6-8
Buffer status...................................................................................................................6-9
Dynamically-allocated buffers .........................................................................................6-9
Dynamic buffer programming example..........................................................................6-10
Buffer for...do loops......................................................................................................6-10
Exceeding reading buffer capacity.................................................................................6-11
Scanning 7-1
Scanning fundamentals................................................................................................7-1
Channel assignments.....................................................................................................7-1
Sequential and non-sequential scans..............................................................................7-1
Foreground and background scan execution...................................................................7-2
Pseudocards..................................................................................................................7-2
2-wire scan process........................................................................................................7-3
4-wire scan process........................................................................................................7-3
Trigger model.................................................................................................................7-4
Trigger model components .............................................................................................7-5
Events ...........................................................................................................................7-6
Event blenders...............................................................................................................7-6
Front panel scanning....................................................................................................7-7
Scan configuration..........................................................................................................7-7
SCAN operation.............................................................................................................7-8
STEP operation..............................................................................................................7-9
Basic scan procedure.....................................................................................................7-9
Bus operation scanning..............................................................................................7-10
ICL commands.............................................................................................................7-10
Examples.....................................................................................................................7-12

Contents Series 3700 System Switch/Multimeter Reference Manual
iv Document Number: 3700S-901-01 Rev. A / August 2007
Status Model 8-1
Status register sets ......................................................................................................8-1
Negative and positive transition registers.........................................................................8-1
Status byte and SRQ....................................................................................................8-2
Queues..........................................................................................................................8-2
System summary and status byte.................................................................................8-3
System summary registers...........................................................................................8-4
Standard event status register and enable....................................................................8-5
Operation events registers ...........................................................................................8-5
Questionable event register..........................................................................................8-6
Measurement event register.........................................................................................8-6
Status function summary..............................................................................................8-7
Clearing registers and queues......................................................................................8-7
Programming enable and transition registers................................................................8-8
Reading registers.........................................................................................................8-9
Status byte and service request (SRQ).......................................................................8-10
Status byte register.......................................................................................................8-10
Serial polling and SRQ .................................................................................................8-11
Service request enable register.....................................................................................8-12
SPE, SPD (serial polling)..............................................................................................8-12
Status byte and service request commands...................................................................8-12
Enable and transition registers......................................................................................8-13
Controlling node and SRQ enable registers...................................................................8-13
Status register set specifics........................................................................................8-13
System summary event registers ..................................................................................8-13
Standard event register ................................................................................................8-16
Operation event registers..............................................................................................8-18
Questionable event registers.........................................................................................8-19
Measurement event registers........................................................................................8-20
Queues......................................................................................................................8-20
Output queue...............................................................................................................8-20
Error queue..................................................................................................................8-20
Instrument Control Library (ICL) 9-1
Command programming notes.....................................................................................9-1
Wild characters ..............................................................................................................9-1
Functions and attributes..................................................................................................9-2
TSP-Link nodes..............................................................................................................9-4
Logical instruments.........................................................................................................9-5
Query commands...........................................................................................................9-5
DMM configuration.........................................................................................................9-6
beeper functions and attribute......................................................................................9-8
bit functions..................................................................................................................9-9
Logic and bit operations..................................................................................................9-9

Series 3700 System Switch/Multimeter Reference Manual Contents
Document Number: 3700S-901-01 Rev. A / August 2007 v
channel functions and attributes.................................................................................9-16
delay function.............................................................................................................9-48
digio functions and attributes......................................................................................9-48
display functions and attributes ..................................................................................9-54
dmm functions............................................................................................................9-69
Changing filter settings.................................................................................................9-89
errorqueue functions and attributes..........................................................................9-123
eventlog functions and attributes..............................................................................9-125
exit function..............................................................................................................9-127
format attributes.......................................................................................................9-127
gpib attribute............................................................................................................9-130
makegetter functions................................................................................................9-130
ICL LAN commands.................................................................................................9-132
localnode attributes..................................................................................................9-148
localnode.define.*.......................................................................................................9-148
opc function .............................................................................................................9-155
printbuffer ................................................................................................................9-155
reset function...........................................................................................................9-156
scan functions..........................................................................................................9-157
setup functions and attribute.....................................................................................9-174
slot[X] attributes.......................................................................................................9-176
status function and attributes....................................................................................9-186
Status byte and SRQ..................................................................................................9-186
timer functions..........................................................................................................9-208
trigger.timer..............................................................................................................9-209
tsplink.trigger ...........................................................................................................9-212
tsplink.trigger[N].triggerstimulus..................................................................................9-214
trigger functions .......................................................................................................9-215
trigger.blender............................................................................................................9-216
tsplink function and attributes...................................................................................9-218
userstring functions..................................................................................................9-219
Upgrade...................................................................................................................9-221
waitcomplete function...............................................................................................9-222
Verification 10-1
Introduction................................................................................................................10-1
Verification test requirements.....................................................................................10-2
Environmental conditions..............................................................................................10-2

Contents Series 3700 System Switch/Multimeter Reference Manual
vi Document Number: 3700S-901-01 Rev. A / August 2007
Warmup period.............................................................................................................10-2
Line power...................................................................................................................10-2
Recommended test equipment .....................................................................................10-2
Verification limits ..........................................................................................................10-3
Restoring factory defaults.............................................................................................10-4
Performing the verification test procedures.................................................................10-4
Test summary ..............................................................................................................10-4
Test considerations ......................................................................................................10-4
Series 3700 verification..............................................................................................10-5
Verifying DC voltage.....................................................................................................10-5
Verifying AC voltage.....................................................................................................10-7
Verifying DC current 10uA-100uA ranges......................................................................10-9
Verifying DC current 1mA-3A ranges...........................................................................10-11
Verifying AC current 1mA to 3A ranges.......................................................................10-12
Verifying frequency.....................................................................................................10-14
Verifying four-wire resistance......................................................................................10-15
Verifying two-wire resistance.......................................................................................10-16
Verifying dry circuit resistance.....................................................................................10-18
Verifying 1-OHM and 10-OHM resistance ranges .......................................................10-19
Verifying zeroes using a four-wire short.......................................................................10-21
Calibration 11-1
Environmental conditions ...........................................................................................11-1
Warmup period.............................................................................................................11-1
Line power...................................................................................................................11-2
Calibration considerations..........................................................................................11-2
Calibration cycle...........................................................................................................11-2
Recommended equipment............................................................................................11-3
Calibration..................................................................................................................11-3
Remote comprehensive calibration procedure............................................................11-4
DC volts calibration.......................................................................................................11-4
Resistance calibration...................................................................................................11-7
DC current calibration...................................................................................................11-9
AC volts calibration.....................................................................................................11-11
AC current calibration.................................................................................................11-14
Frequency calibration .................................................................................................11-16
Save calibration..........................................................................................................11-16
Maintenance 12-1
Introduction................................................................................................................12-1
Fuse replacement ......................................................................................................12-1
Front panel tests........................................................................................................12-2
Test procedure.............................................................................................................12-2

Series 3700 System Switch/Multimeter Reference Manual Contents
Document Number: 3700S-901-01 Rev. A / August 2007 vii
Error codes 13-1
Introduction................................................................................................................13-1
Error summary...........................................................................................................13-1
Error effects on scripts ...............................................................................................13-1
Reading errors...........................................................................................................13-2
Error summary...........................................................................................................13-2
Index Index - 1

List of Figures
Figure 1-1: DMM measurement capabilities.........................................................................1-2
Figure 2-1: TSP test script example..................................................................................... 2-5
Figure 2-2: Programming model for scripts..........................................................................2-7
Figure 2-3: Rear panel features...........................................................................................2-8
Figure 2-4: GPIB cable........................................................................................................2-9
Figure 2-5: Using TSP builder.............................................................................................2-11
Figure 3-1: Model 3706 System Switch/Multimeter ..............................................................3-1
Figure 3-2: Model 3706-S System Switch (no DMM)............................................................3-2
Figure 3-3: Model 3706-NFP System Switch/Multimeter......................................................3-3
Figure 3-4: Model 3706-SNFP System Switch (no DMM).....................................................3-3
Figure 3-5: Active channel display example.........................................................................3-4
Figure 3-6: MAIN MENU display..........................................................................................3-6
Figure 4-1: Speed versus noise characteristics....................................................................4-4
Figure 4-2: Moving average filter.........................................................................................4-7
Figure 4-3: Repeating average filter ....................................................................................4-8
Figure 4-4: Filter window.....................................................................................................4-9
Figure 7-1: Trigger model....................................................................................................7-4
Figure 8-1: Status byte and queues.....................................................................................8-2
Figure 8-2: Status byte and system summary register ......................................................... 8-3
Figure 8-3: System summary registers................................................................................8-4
Figure 8-4: Standard event registers and event status enable..............................................8-5
Figure 8-5: Operation event registers..................................................................................8-5
Figure 8-6: Questionable event register...............................................................................8-6
Figure 8-7: Measurement event register..............................................................................8-6

List of Figures Series 3700 System Switch/Multimeter Reference Manual
x Document Number: 3700S-901-01 Rev. A / August 2007
Figure 8-8: 16-bit status register..........................................................................................8-8
Figure 8-9: Status byte and service request (SRQ).............................................................. 8-10
Figure 8-10: Standard event register...................................................................................8-17
Figure 9-1: ch_list legend....................................................................................................9-16
Figure 9-2: Multiplexer card display.....................................................................................9-17
Figure 9-3: Matrix card display ............................................................................................9-18
Figure 9-4: Status byte and queues.....................................................................................9-186
Figure 10-1: DC volts verification.........................................................................................10-6
Figure 10-2: ACV verification...............................................................................................10-8
Figure 10-3: DC current verification 10uA-100uA ranges.....................................................10-10
Figure 10-4: DC current verification 1mA to 3A ranges .......................................................10-11
Figure 10-5: AC current verification 1mA-1A ranges............................................................10-13
Figure 10-6: AC current verification 3A range......................................................................10-13
Figure 10-7: Verifying four-wire resistance...........................................................................10-16
Figure 10-8: Two-wire resistance verification.......................................................................10-17
Figure 10-9: Verifying four-wire resistance...........................................................................10-19
Figure 10-10: Verifying discrete resistance..........................................................................10-20
Figure 10-11: Four-wire short diagram................................................................................. 10-22
Figure 11-1: Four-wire short diagram...................................................................................11-5
Figure 11-2: DC volts verification.........................................................................................11-6
Figure 11-3: Verifying four-wire resistance...........................................................................11-7
Figure 11-4: DC current verification 10uA-100uA ranges.....................................................11-9
Figure 11-5: ACV verification...............................................................................................11-11
Figure 11-6: AC current verification 1mA-1A ranges............................................................11-14
Figure 12-1: Fuse location...................................................................................................12-2

If you have any questions after reviewing this information, please contact your local
Keithley Instruments representative or call one of our Applications Engineers at
1-888-KEITHLEY (1-888-534-8453). You can also contact us through our website at
www.keithley.com.
In this section:
Overview ........................................................................................................ 1-1
Warranty information....................................................................................... 1-2
Safety symbols and terms ............................................................................... 1-3
Specifications.................................................................................................. 1-3
Overview
The Series 3700 instruments offer scalable, instrument grade switching and multi-channel
measurement solutions that are optimized for automated testing of electronic products and
components. The Series 3700 includes four versions of the Model 3706 system switch
mainframe along with a growing family of plug-in switch and control cards. When the Model
3706 mainframe is ordered with the high performance multimeter, you receive a tightly
integrated switch and measurement system that can meet the demanding application
requirements in a functional test system or provide the flexibility needed in stand-alone data
acquisition and measurement applications.
Section 1
Introduction

Section 1: Introduction Series 3700 System Switch/Multimeter Reference Manual
1-2 Document Number: 3700S-901-01 Rev. A / August 2007
Measure and switching capabilities
The basic measurement capabilities of Series 3700 systems are summarized in the following
figure.
Figure 1-1: DMM measurement capabilities
Warranty information
Detailed warranty information is located at the front of this manual. Should your Series 3700
require warranty service, contact the Keithley Instruments representative or authorized repair
facility in your area for further information. When returning the instrument for repair, be sure to
complete the service form at the back of this manual and give it to the repair facility with all
relevant information.
NOTE The service form requires the serial number of the Series 3700. The serial number
label is located inside the unit on the bottom panel. The serial number can be viewed
by removing the slot covers and/or switching modules from the mainframe.
WARNING Before removing (or installing) switching modules, make sure you turn off
the Series 3700 and disconnect the line cord. Also, remove any other
external power connected to the instrument or switching module(s).
Failure to remove power before removing (or installing) switching
modules may result in personal injury or death due to electric shock.
Displaying the unit's serial number
To display the serial number on the front panel:

Series 3700 System Switch/Multimeter Reference Manual Section 1: Introduction
Document Number: 3700S-901-01 Rev. A / August 2007 1-3
NOTE If the Series 3700 is in remote mode, press the EXIT key once to place the unit in local
mode.
1. When in local mode, press the MENU key.
2. Scroll to the SYSTEM-INFO menu and press the ENTER key.
3. On the SYSTEM INFORMATION menu, scroll to the SERIAL# and press the ENTER key.
The Series 3700 serial number will be displayed.
Safety symbols and terms
The following symbols and terms may be found on the System Switch/Multimeter or used in this
manual:
The symbol indicates that the user should refer to the operating instructions located in the
manual.
The symbol shows that high voltage may be present on the terminal(s). Use standard safety
precautions to avoid personal contact with these voltages.
The symbol on an instrument shows that the surface may be hot. Avoid personal contact to
prevent burns.
The WARNING heading used in this 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 used in this manual explains hazards that could damage the unit. Such
damage may invalidate the warranty.
Specifications
Full specifications can be found in Appendix A of the User‘s manual. Also, refer to the product
data sheet for System Switch/Multimeter specifications. Check the Keithley Instruments website
at www.keithley.com for the latest updates to the specifications.