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Keithley 3720 User manual - Safety Symbols and Terms

Other manuals for 3720: Reference Manual
Manual is about: Switch/Multimeter Series 3700

Summary of 3720

  • Page 1

    Www.Keithley.Com 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 series 3700 system switch/multimeter user’s manual 3700s-900-01 rev. A / august 2007.

  • Page 3: Warranty

    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: 440-248-6168 • 1-888-keithley (1-888-534-8453) • www.Keithley.Com 3/07 warranty keithley instruments, inc. Warrants this product to ...

  • Page 5

    System switch/multimeter user's manual ©2007, keithley instruments, inc. All rights reserved. Cleveland, ohio, u.S.A. Document number: 3700s-900-01 rev. A / august 2007 series 3700

  • Page 6: Manual Print History

    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 inf...

  • Page 7: Safety Precautions

    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. Thi...

  • Page 8

    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 ...

  • Page 9: Table Of Contents

    Table of contents introduction 1-1 overview ...................................................................................................................... 1-1 measure and switching capabilities ................................................................................. 1-2 reference ma...

  • Page 10

    Contents system switch/multimeter user's manual ii document number: 3700s-900-01 rev. A / august 2007 closing and opening switching module channels 4-1 close/open overview .................................................................................................... 4-1 channel operation (non-...

  • Page 11

    System switch/multimeter user's manual contents document number: 3700s-900-01 rev. A / august 2007 iii open lead detection ..................................................................................................... 5-30 temperature measurements ................................................

  • Page 12

    Contents system switch/multimeter user's manual iv document number: 3700s-900-01 rev. A / august 2007 timer functions............................................................................................................ 6-16 trigger functions ......................................................

  • Page 13

    System switch/multimeter user's manual contents document number: 3700s-900-01 rev. A / august 2007 v model 3730 6×16 high-density matrix card ................................................................. 9-38 available accessories: model 3730 ........................................................

  • Page 15: List of Figures

    List of figures figure 1-1: dmm measurement capabilities ......................................................................... 1-2 figure 2-1: model 3706 system switch/multimeter .............................................................. 2-1 figure 2-2: model 3706-s system switch (no dmm)......

  • Page 16

    List of figures system switch/multimeter user's manual viii document number: 3700s-900-01 rev. A / august 2007 figure 5-9: two-wire switching module resistance connection ............................................. 5-19 figure 5-10: four-wire switching module resistance connection ...................

  • Page 17

    System switch/multimeter user's manual list of figures document number: 3700s-900-01 rev. A / august 2007 ix figure 5-34: continuity connections .................................................................................... 5-51 figure 5-35: continuity connections using a switching module .......

  • Page 18

    List of figures system switch/multimeter user's manual x document number: 3700s-900-01 rev. A / august 2007 figure 9-23: schematic: model 3723 in one-pole mode ....................................................... 9-31 figure 9-24: sample model 3723 connection log (60 channel)(1 of 2) ...............

  • Page 19: Overview

    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 ............

  • Page 20

    Section 1: introduction series 3700 system switch/multimeter user's manual 1-2 document number: 3700s-900-01 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 capabilit...

  • Page 21: Warranty Information

    Series 3700 system switch/multimeter user's manual section 1: introduction document number: 3700s-900-01 rev. A / august 2007 1-3 warranty information detailed warranty information is located at the front of this manual. Should your series 3700 require warranty service, contact the keithley instrume...

  • Page 22: Safety Symbols and Terms

    Section 1: introduction series 3700 system switch/multimeter user's manual 1-4 document number: 3700s-900-01 rev. A / august 2007 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 re...

  • Page 23: Front Panel Introduction

    In this section: front panel introduction ................................................................................... 2-1 display ........................................................................................................... 2-3 front panel keys ....................................

  • Page 24

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-2 document number: 3700s-900-01 rev. A / august 2007 figure 2-2: model 3706-s system switch (no dmm) note if your model does not have a front panel, please refer to the reference manual for information on how to ch...

  • Page 25: Display

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-3 figure 2-3: model 3706-nfp system switch/multimeter figure 2-4: model 3706-snfp system switch (no dmm) display the series 3700 display provides visual informatio...

  • Page 26

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-4 document number: 3700s-900-01 rev. A / august 2007 note attribute lists, as well as menu lists, that are larger than the display, can be accessed by turning the wheel (6). Displayed arrows (5) indicate additional...

  • Page 27

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-5 the bottom line of the display (4) contains the attribute symbols. The symbols that appear are dependent on whether the attribute exists for the selected functio...

  • Page 28: Front Panel Keys

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-6 document number: 3700s-900-01 rev. A / august 2007 see the following figure for a menu example. In the example, the main menu is displayed. Turn the wheel (6) or press the cursor keys, to scroll through the avail...

  • Page 29

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-7 config key use this key to access the an attribute menu that enables you to configure channels, channel patterns, dmm functions, or settings, reading buffer, sca...

  • Page 30

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-8 document number: 3700s-900-01 rev. A / august 2007 chan key configuration pressing the config key and then the chan key opens the channel attribute menu. This menu contains: label: this menu item sets the label a...

  • Page 31

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-9 view: this menu item shows the channels associated with the pattern. Note that if no patterns exist in the system when the patt key is pressed, then this will be...

  • Page 32

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-10 document number: 3700s-900-01 rev. A / august 2007 scan key configuration pressing the config key and then the scan key opens the "scan attr menu" that contains: add: this menu item instructs how to add an addit...

  • Page 33

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-11 dmm key configuration pressing the config key and then the dmm key opens a dmm attribute menu for the active function. For example, if the dcv function is activ...

  • Page 34

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-12 document number: 3700s-900-01 rev. A / august 2007 inputdiv enables or disables the 10m ohm input divider. Related icl command: dmm.Inputdivider limit opens the limit menu for the selected dmm function. See limi...

  • Page 35

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-13 opendetect configures the state of the thermocouple or four-wire ohms open detector being used. Related icl command: dmm.Opendetector range configures the range...

  • Page 36

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-14 document number: 3700s-900-01 rev. A / august 2007 limit key pressing this key will cycle through the four combinations of limit state settings (limit1 and limit2 off, limit1 on and limit2 off, limit1 off and li...

  • Page 37

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-15 filter key pressing this key enables/disables filter for selected function. When the filter is enabled, the filt annunciator will light. Also see filter in the ...

  • Page 38

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-16 document number: 3700s-900-01 rev. A / august 2007 insert key pressing this key appends the present channel to the scan list. Delete key pressing this key deletes the present channel (including function) from th...

  • Page 39

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-17 range, multifunction keys, and wheel range keys ▲▼ selects the next higher or lower measurement range for the selected function when on measurement display. To ...

  • Page 40

    Section 2: using the front panel series 3700 system switch/multimeter user's manual 2-18 document number: 3700s-900-01 rev. A / august 2007 open key opens selected channels or channel pattern. Close key closes specified channels or channel pattern. Store key opens the rd buff action menu. This menu ...

  • Page 41

    Series 3700 system switch/multimeter user's manual section 2: using the front panel document number: 3700s-900-01 rev. A / august 2007 2-19 function key this key select the active function by cycling through the following list as listed. Each press of the func key has the dmm and configured to the n...

  • Page 43: Rear Panel Summary

    In this section: rear panel summary ....................................................................................... 3-1 rear panel connections ................................................................................... 3-2 switching module installation and connections ..................

  • Page 44: Rear Panel Connections

    Section 3: rear panel series 3700 system switch/multimeter user's manual 3-2 document number: 3700s-900-01 rev. A / august 2007 rear panel connections analog backplane amps fuse for continued protection against fire hazard, replace fuse with same type and rating (3a / 250v). See fuse replacement (on...

  • Page 45

    Series 3700 system switch/multimeter user's manual section 3: rear panel document number: 3700s-900-01 rev. A / august 2007 3-3 digital i/o port the series 3700 has a digital input/output port that can be used to control external digital circuitry. For example, a handler that is used to perform binn...

  • Page 46

    Section 3: rear panel series 3700 system switch/multimeter user's manual 3-4 document number: 3700s-900-01 rev. A / august 2007 digital i/o lines (pins 1 through 14) the port provides 14 digital i/o lines. Each output is set high (+5v) or low (0v) and can read high or low logic levels. +5v output (p...

  • Page 47

    Series 3700 system switch/multimeter user's manual section 3: rear panel document number: 3700s-900-01 rev. A / august 2007 3-5 figure 3-3: usb connectors analog backplane connector refer to the following figure for analog backplane connector information. See connections (on page 3-8) before making ...

  • Page 48: Module Installation

    Section 3: rear panel series 3700 system switch/multimeter user's manual 3-6 document number: 3700s-900-01 rev. A / august 2007 switching module installation and connections in order to exercise close/open operations explained in this section, a switching module (or pseudocard) must be installed in ...

  • Page 49

    Series 3700 system switch/multimeter user's manual section 3: rear panel document number: 3700s-900-01 rev. A / august 2007 3-7 7. Press the slot key (on page 2-9) to see the model numbers, description, and the firmware revision of the installed switching module(s), along with the mainframe firmware...

  • Page 50

    Section 3: rear panel series 3700 system switch/multimeter user's manual 3-8 document number: 3700s-900-01 rev. A / august 2007 connections warning connection information for switching modules is intended for qualified service personnel. Do not attempt to connect dut or external circuitry to a switc...

  • Page 51

    Series 3700 system switch/multimeter user's manual section 3: rear panel document number: 3700s-900-01 rev. A / august 2007 3-9 pseudocards you can perform open/close/scan operations and configure your system without having an actual switching module installed in your series 3700. Using remote progr...

  • Page 52: Bus Operation

    Section 3: rear panel series 3700 system switch/multimeter user's manual 3-10 document number: 3700s-900-01 rev. A / august 2007 bus operation the series 3700 supports bus operation over usb, ethernet and gpib. The gpib settings may be set from the front panel, or once controlled by the bus, over th...

  • Page 53: Power-Up

    Series 3700 system switch/multimeter user's manual section 3: rear panel document number: 3700s-900-01 rev. A / august 2007 3-11 2. Rawsocket is 5025 (icl: lan.Status.Port.Rawsocket) 3. Vxi11 is 1024 (icl: lan.Status.Port.Vxi11) 4. Dead socket termination is 5030 (icl: lan.Status.Port.Dst) when chan...

  • Page 54

    Section 3: rear panel series 3700 system switch/multimeter user's manual 3-12 document number: 3700s-900-01 rev. A / august 2007 3. Turn on the instrument by pressing the front panel power switch to the on (i) position. See front panel introduction (on page 2-1) for switch location. Line frequency n...

  • Page 55

    Series 3700 system switch/multimeter user's manual section 3: rear panel document number: 3700s-900-01 rev. A / august 2007 3-13 system identification serial number, firmware revision, and calibration dates can be displayed by selecting the system-info item of the main menu (press menu > system-info...

  • Page 57: Close/open Overview

    In this section: close/open overview ....................................................................................... 4-1 channel operation ........................................................................................... 4-13 identifying installed modules and viewing closed channel...

  • Page 58

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-2 document number: 3700s-900-01 rev. A / august 2007 channel pattern operation:this mode of operation provides additional flexibility by providing individual control of each switching module...

  • Page 59

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-3 note matrix and multiplexer channels, along with backplane relays, may be part of a channel pattern image. A channel pattern is comprised...

  • Page 60

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-4 document number: 3700s-900-01 rev. A / august 2007 are part of saved setup data and restored when a setup is recalled. Are deleted with a system reset or reset of a channel associated with...

  • Page 61

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-5 to see the image associated with a channel pattern, use the channel.Pattern.Getimage command. For example to see the image of the pattern...

  • Page 62

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-6 document number: 3700s-900-01 rev. A / august 2007 available commands for measuring: dmm.Close dmm.Open scanning (only with function of dmm configuration set to anything other than 'nofunc...

  • Page 63

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-7 close/open key operation the front panel close and open keys operate in the same manner as one of the following: channel.Close and channe...

  • Page 64

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-8 document number: 3700s-900-01 rev. A / august 2007 close count: indicates how many times the relay for a channel has closed. A backplane relay has a close count associated with it as well....

  • Page 65

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-9 assume the following channel attributes: channel backplane relays pole setting dmm configuration 3001 none 2 'fourwireohms' 3002 3915 2 '...

  • Page 66

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-10 document number: 3700s-900-01 rev. A / august 2007 7. Dmm close 3002 open 3001, 3031 keep 3911, 3922 close close 3002, 3032 when creating a channel pattern, make sure to: include all of t...

  • Page 67

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-11 analog backplane relays (bank 2 of slot 1) examples: reference analog backplane relay 1921 analog backplane relay 1 1922 analog backplan...

  • Page 68

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-12 document number: 3700s-900-01 rev. A / august 2007 matrix card notation to control channels using matrix card notation, use srcc where: s: slot number r: row number cc: column number (alw...

  • Page 69: Channel Operation

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-13 enclose the contents of the channel list in either single (') or double (") quotes, but the quote style must match. Use a comma or semic...

  • Page 70

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-14 document number: 3700s-900-01 rev. A / august 2007 2-wire functions the following figure shows an example of how the channel is connected to the dmm input of the series 3700 with regards ...

  • Page 71

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-15 assume a switching module is installed in slot 1 of the mainframe, and a 4-wire function, such as Ω4, is selected. When channel 1001 is ...

  • Page 72

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-16 document number: 3700s-900-01 rev. A / august 2007 example assume a model 3722 is installed in slot 1, a model 3721 is installed in slot 2 and the other 4 slots are empty. Sending the fol...

  • Page 73: Relay Closure Count

    Series 3700 system switch/multimeter user's manual section 4: closing and opening switching module channels document number: 3700s-900-01 rev. A / august 2007 4-17 4. From this menu, select one of the following: rule: use this menu item to set the rule to bbm, mbb, or off. Sequential. Use this menu ...

  • Page 74

    Section 4: closing and opening switching module channels series 3700 system switch/multimeter user's manual 4-18 document number: 3700s-900-01 rev. A / august 2007 2. Press the config key. 3. Press the chan key. 4. Use the wheel (3) to scroll to the "count" menu item. 5. Press the enter key(or the w...

  • Page 75

    In this section: dmm measurement capabilities ....................................................................... 5-1 high-energy circuit safety precautions .............................................................. 5-2 performance considerations ................................................

  • Page 76

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-2 document number: 3700s-900-01 rev. A / august 2007 high-energy circuit safety precautions to optimize safety when measuring voltage in high-energy distribution circuits, read and use the direct...

  • Page 77: Performance Considerations

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-3 performance considerations warm-up after the series 3700 is turned on, it must be allowed to warm up for at least two hours to allow the inter...

  • Page 78

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-4 document number: 3700s-900-01 rev. A / august 2007 line cycle synchronization synchronizing a/d conversions with the frequency of the power line increases common mode and normal mode noise reje...

  • Page 79

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-5 dcv input divider normally, the input resistance for the 100mvdc, 1vdc, and 10vdc ranges is >10gΩ, while the input resistance of the 100vdc an...

  • Page 80

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-6 document number: 3700s-900-01 rev. A / august 2007 warning make sure the insulation and wire sizes used are appropriate for the voltages and current being applied to the series 3700 analog back...

  • Page 81

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-7 schematic refer to the following figure for a schematic of the rear panel, backplane, and dmm connect relays with a typical card. Figure 5-4: ...

  • Page 82

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-8 document number: 3700s-900-01 rev. A / august 2007 voltage measurement procedure warning if both the analog backplane connector and a switching module's terminals are connected at the same time...

  • Page 83

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-9 ac voltage measurements and crest factor the root-mean-square (rms) value of any periodic voltage or current is equal to the value of the dc v...

  • Page 84

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-10 document number: 3700s-900-01 rev. A / august 2007 figure 5-6: acv measurements: square, pulse, and sawtooth waves the series 3700 is an ac-coupled rms meter. For an ac waveform with dc conten...

  • Page 85

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-11 the reason to consider crest factor in accuracy of rms measurements is because the meter has a limited bandwidth. Theoretically, a sine wave ...

  • Page 86

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-12 document number: 3700s-900-01 rev. A / august 2007 when detectorbandwidth = 300 for dmm.Detectorbandwidth=300, the series 3700 dmm is optimized for inputs from 300khz, (fast). For aci or acv i...

  • Page 87

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-13 function range and delays aci ranges 1ma 10ma 100ma 1a 3a autodelay 200ms 200ms 200ms 200ms 200ms auto range 300ms 300ms 300ms 300ms 300ms 2 ...

  • Page 88

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-14 document number: 3700s-900-01 rev. A / august 2007 low level considerations for sensitive measurements, external considerations beyond the series 3700 affect the accuracy. Effects not noticeab...

  • Page 89

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-15 ac voltage offset the series 3700, at 5½ digits resolution, will typically display 100 counts of offset on ac volts with the input shorted. T...

  • Page 90

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-16 document number: 3700s-900-01 rev. A / august 2007 5. If using a switching module, perform the following steps to close the desired channel: a) use the wheel to dial in the channel number. B) ...

  • Page 91: Resistance Measurements

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-17 resistance measurements the series 3700 uses the constant-current method to measure resistance ranges from 1 to 1m . The series 3700 sources ...

  • Page 92

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-18 document number: 3700s-900-01 rev. A / august 2007 for 2-wire resistance measurements ( 2), connect the leads to input hi and lo. Figure 5-7: two-wire resistance measurements for 4-wire resist...

  • Page 93

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-19 switching module connections for the switching module are shown below. As shown, each of the 40 channels can be used to perform 2w measuremen...

  • Page 94

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-20 document number: 3700s-900-01 rev. A / august 2007 standard resistance measurements caution inputs: do not apply more than 425v peak between input hi and lo, or instrument damage may occur. Ca...

  • Page 95

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-21 note the various instrument operations, including ocomp, are performed on the input signal in a sequential manner. For a normal resistance me...

  • Page 96

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-22 document number: 3700s-900-01 rev. A / august 2007 1. Press the config key (1). 2. Press the dmm key(2). 3. Turn the wheel (3) to scroll to the "offsetcomp" menu item and press the wheel to se...

  • Page 97

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-23 with offset-compensated ohms enabled, it will be “remembered” by the 4w function after you change measurement functions (i.E., dcv). When 4w ...

  • Page 98

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-24 document number: 3700s-900-01 rev. A / august 2007 note when dry circuit ohms is enabled, offset-compensated ohms is automatically enabled (oc+ annunciator). If you do not wish to use offset-c...

  • Page 99

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-25 note when enabled, the dry circuit ohms annunciator is on (dry+). Performing dry circuit ohms measurements dry circuit ohms can only be perfo...

  • Page 100

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-26 document number: 3700s-900-01 rev. A / august 2007 dry circuit ohms measurement considerations dry circuit ohms uses a constant current source with voltage monitoring that is used to clamp the...

  • Page 101

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-27 the two-wire constant-current method is shown below. Figure 5-15: two-wire constant-current source method the four-wire constant-current meth...

  • Page 102

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-28 document number: 3700s-900-01 rev. A / august 2007 basic circuit theory dictates that i ref is equal to the i dut . Since the voltmeter of the series 3700 (v meas ) has very high input impedan...

  • Page 103

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-29 keep in mind that v meas includes the voltage drops of the input test leads (input hi and input lo). Therefore, the actual voltage drop acros...

  • Page 104

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-30 document number: 3700s-900-01 rev. A / august 2007 open lead detection the series 3700 has four methods to detect open lead conditions: isour open voltage vmeas open voltage calculated measure...

  • Page 105

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-31 figure 5-20: simplified normal four-wire open lead detection schematic isour open voltage 1 through 1m ranges: a hardware detector is used to...

  • Page 106

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-32 document number: 3700s-900-01 rev. A / august 2007 calculated measurement open voltage a calculated measurement, which exceed 120% of the range, will return an overflow reading. Dmm.Opendetect...

  • Page 107

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-33 range internal dmm comm. (msec) slo settle time (msec) slo measurement time (msec) internal dmm comm. 1-10k 0.06 0.5 min max 0.06 0.0083 250 ...

  • Page 108

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-34 document number: 3700s-900-01 rev. A / august 2007 the follow schematic provides a simplified view of the series 3700 four-wire dry-circuit open lead detection. Figure 5-21: simplified dry-cir...

  • Page 109: Temperature Measurements

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-35 note 1. Input sense hi is internally connector to input hi. The connection allows proper open circuit voltage, even with sense hi disconnecte...

  • Page 110

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-36 document number: 3700s-900-01 rev. A / august 2007 reference junctions a reference junction is the cold junction in a thermocouple circuit that is held at a stable, known temperature. The cold...

  • Page 111

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-37 open thermocouple detection long lengths of thermocouple wire can have a large amount of capacitance that is seen at the input of the dmm. If...

  • Page 112

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-38 document number: 3700s-900-01 rev. A / august 2007 the thermocouple open detection times are listed in the following table. Ion source settle (msec) iopenl ead measure (msec) phase internal dm...

  • Page 113

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-39 thermocouple connections connections for thermocouples are shown below. Thermocouples are color coded to identify the positive (+) and negati...

  • Page 114

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-40 document number: 3700s-900-01 rev. A / august 2007 when using the series 3700 analog backplane connector, use a simulated reference junction for thermocouple temperature measurements. An ice b...

  • Page 115

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-41 thermocouple temperature measurement configuration to configure temperature measurements from the front panel: 1. If needed, change to the te...

  • Page 116

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-42 document number: 3700s-900-01 rev. A / august 2007 of all the temperature transducers, the thermistor is the most sensitive. It can detect minute changes in temperature. It is a good choice wh...

  • Page 117

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-43 4. Set thermo device attributes: turn the wheel to scroll to the "thermo" menu item and press the enter key. Turn the wheel to scroll to the ...

  • Page 118

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-44 document number: 3700s-900-01 rev. A / august 2007 note dmm.Offsetcompensation is a common command, shared with fourwireohms and drycircuit. To enable or disable rtd offset compensation, first...

  • Page 119

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-45 4-wire rtd connections shown below are 4-wire rtd connections to the series 3700. For a 4-wire rtd capable 40- channel switching module, pair...

  • Page 120

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-46 document number: 3700s-900-01 rev. A / august 2007 type standard alpha beta delta Ω at 0°c pt100 its-90 0.00385055 0.10863 1.49990 100Ω d100 its-90 0.003920 0.10630 1.49710 100Ω f100 its-90 0....

  • Page 121

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-47 the temperature measurement can be configured from the front panel when the present function is "tmp" by pressing the config key, then the dm...

  • Page 122

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-48 document number: 3700s-900-01 rev. A / august 2007 5. If using a switching module, perform the following steps to close the desired channel. Keep in mind, that for 3 or 4-wire rtd measurements...

  • Page 123

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-49 the series 3700 completes a reading when it receives its first positive zero-crossing after the gate time expires. For example, for any arbit...

  • Page 124: Continuity Testing

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-50 document number: 3700s-900-01 rev. A / august 2007 3. Press the config key and then the dmm key. The "cont attr menu" will open. 4. Set threshold voltage: turn the wheel to scroll to the "thre...

  • Page 125

    Series 3700 system switch/multimeter user's manual section 5: basic digital multimeter (dmm) operation document number: 3700s-900-01 rev. A / august 2007 5-51 continuity testing connections when using the rear analog backplane connector, connect the test leads to the input hi and lo terminals as sho...

  • Page 126

    Section 5: basic digital multimeter (dmm) operation series 3700 system switch/multimeter user's manual 5-52 document number: 3700s-900-01 rev. A / august 2007 4. Set threshold resistance: turn the wheel to scroll to the "threshold" menu item (right most menu item) and press the enter key. Using the ...

  • Page 127: Icl Command List

    This section provides a listing of instrument control library commands, descriptions, and usage. Refer to the reference manual for complete icl usage information. In this section: beeper ............................................................................................................ 6-2 ...

  • Page 128: Beeper

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-2 document number: 3700s-900-01 rev. A / august 2007 beeper the beeper generates a beep tone. It is typically used to announce the start and/or completion of a test or operation. Available commands: beeper.Enable beeper...

  • Page 129

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-3 channel.Connectsequential channel.Exclusiveclose() channel.Exclusiveslotclose() channel.Getbackplane() channel.Getclose() channel.Getcount() channel.Getdelay() channe...

  • Page 130: Delay Function

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-4 document number: 3700s-900-01 rev. A / august 2007 delay function this function is used to postpone system operation for a specified period of time. Available command: delay() digio functions and attributes use the fu...

  • Page 131: Dmm Functions

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-5 display.Getcursor() display.Getlastkey() display.Gettext() display.Inputvalue() display.Loadmenu.Add display.Loadmenu.Delete() display.Locallockout display.Menu() dis...

  • Page 132

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-6 document number: 3700s-900-01 rev. A / august 2007 dmm.Calibration.Dc() dmm.Calibration.Lock() dmm.Calibration.Password dmm.Calibration.Save() dmm.Calibration.Unlock() dmm.Calibration.Verifydate dmm.Close() dmm.Config...

  • Page 133

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-7 dmm.Limit[y].High.Fail dmm.Limit[y].High.Value dmm.Limit[y].Low.Fail dmm.Limit[y].Low.Value dmm.Linesync dmm.Makebuffer() dmm.Math.Enable dmm.Math.Format dmm.Math.Mxb...

  • Page 134

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-8 document number: 3700s-900-01 rev. A / august 2007 dmm.Rtddelta dmm.Rtdzero dmm.Savebuffer() dmm.Setconfig() dmm.Simreftemperature dmm.Thermistor dmm.Thermocouple dmm.Threertd dmm.Threshold dmm.Transducer dmm.Units ev...

  • Page 135: Exit Function

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-9 exit function use this function to terminate a script that is presently running. Available command: exit() format attributes use the format attributes to configure th...

  • Page 136

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-10 document number: 3700s-900-01 rev. A / august 2007 lan.Config.Dns.Address[n] lan.Config.Dns.Domain lan.Config.Dns.Dynamic lan.Config.Dns.Verify lan.Config.Duplex lan.Config.Gateway lan.Config.Ipaddress lan.Config.Met...

  • Page 137: Localnode Attributes

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-11 lan.Trigger[n].Wait() localnode attributes use the attributes in this group to set the power line frequency, control (on/off) prompting, control (hide/show) error me...

  • Page 138: Reset Function

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-12 document number: 3700s-900-01 rev. A / august 2007 reset function use this function to return all logical instruments to the default settings. Reset() scan functions use the functions in this group to specify and con...

  • Page 139: Slot[X] Attributes

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-13 scan.Trigger.Channel.Set() scan.Trigger.Channel.Stimulus scan.Trigger.Clear() scan.Trigger.Measure.Clear() scan.Trigger.Measure.Set() scan.Trigger.Measure.Stimulus s...

  • Page 140

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-14 document number: 3700s-900-01 rev. A / august 2007 slot[x].Endchannel.Isolated slot[x].Endchannel.Voltage slot[x].Idn slot[x].Interlock.Override slot[x].Interlock.State slot[x].Isolated slot[x].Matrix slot[x].Maxsett...

  • Page 141

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-15 status.Measurement.Ntr status.Measurement.Ptr status.Node_enable status.Node_event status.Operation.Condition status.Operation..Enable status.Operation.Event status....

  • Page 142: Timer Functions

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-16 document number: 3700s-900-01 rev. A / august 2007 status.System.Event status.System2.Condition status.System2.Enable status.System2.Event status.System3.Condition status.System3.Enable status.System3.Event status.Sy...

  • Page 143: Upgrade Function

    Series 3700 system switch/multimeter user's manual section 6: icl command list document number: 3700s-900-01 rev. A / august 2007 6-17 trigger.Blender[n].Orenable trigger.Blender[n].Overrun trigger.Blender[n].Stimulus[m] trigger.Blender[n].Wait() trigger.Clear() trigger.Wait() tsplink functions and ...

  • Page 144: Userstring Functions

    Section 6: icl command list series 3700 system switch/multimeter user's manual 6-18 document number: 3700s-900-01 rev. A / august 2007 userstring functions use the functions in this group to store and retrieve user-defined strings in nonvolatile memory. Available commands: userstring.Add() userstrin...

  • Page 145

    Use this procedure to upgrade the series 3700 firmware directly from a usb flash drive using a *.Cab file. The upgrade process should take approximately 5 minutes. Caution do not turn off unit or remove flash drive during the upgrade procedure unless specifically instructed to do so. 1. Copy upgrade...

  • Page 147: Introduction

    In this section: introduction ..................................................................................................... 8-1 fuse replacement ........................................................................................... 8-1 front panel tests ....................................

  • Page 148

    Section 8: maintenance series 3700 system switch/multimeter user's manual 8-2 document number: 3700s-900-01 rev. A / august 2007 figure 8-1: fuse location fuse location rating keithley instruments part number (1) analog backplane fuse 250v, 3a fast blow 5x20mm fu-99-1 (2) instrument fuse 250v / 1.25...

  • Page 149: Front Panel Tests

    Series 3700 system switch/multimeter user's manual section 8: maintenance document number: 3700s-900-01 rev. A / august 2007 8-3 front panel tests there are two front panel tests: one to test the functionality of the front panel keys and one to test the display. Test procedure the keys test lets you...

  • Page 151

    The series 3700 series offers a growing family of high-density and general-purpose plug-in cards that accommodates a broad range of signals at very competitive pricing. The series 3700 supports applications as diverse as design validation, accelerated stress testing, data acquisition, and functional...

  • Page 152

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-2 document number: 3700s-900-01 rev. A / august 2007 power budgeting and calculation individual relay power consumption generally depends on the type of relay. Latching type relays consume p...

  • Page 153

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-3 in order to determine whether or not a given quantity of relay operations can be performed, the tables above must be used to calculate th...

  • Page 154

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-4 document number: 3700s-900-01 rev. A / august 2007 power budgeting examples example 1 this example is for a fully loaded model 3706-s with model 3723 cards (all 2 pole mode). Slot # card c...

  • Page 155

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-5 example 2 this example is for a partially loaded model 3706 with model 3723 cards (all 1 pole mode). Slot # card channel relays closed ba...

  • Page 156

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-6 document number: 3700s-900-01 rev. A / august 2007 example 3 this example is for a fully loaded model 3706-s with model 3723 cards (all 2 pole mode). Slot # card channel relays closed back...

  • Page 157

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-7 example 4 this example is for a fully loaded 3706-s with mix of cards. Slot # card channel relays closed backplane relays closed slot 1 3...

  • Page 158

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-8 document number: 3700s-900-01 rev. A / august 2007 model 3720 dual 1x30 multiplexer card the model 3720 offers two independent banks of 1×30 two-pole multiplexers. It is ideal for general-...

  • Page 159

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-9 connection information: model 3720 refer to the following figure for model 3720 d-sub connection information. Figure 9-2: d-sub connectio...

  • Page 160

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-10 document number: 3700s-900-01 rev. A / august 2007 schematics: model 3720 the following figure provides a switching schematic for the model 3720. Figure 9-3: schematic of the model 3720

  • Page 161

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-11 model 3720 connection log the following figures provides a sample of a connection log that can be used to record the wiring scheme for t...

  • Page 162

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-12 document number: 3700s-900-01 rev. A / august 2007 figure 9-5: sample model 3720 connection log.

  • Page 163

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-13 model 3721 dual 1x20 multiplexer card the model 3721 provides 40 differential channels and automatic cjc with 3721-st accessory. The mod...

  • Page 164

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-14 document number: 3700s-900-01 rev. A / august 2007 model 3721-st accessory board channel list the following table shows the association between the model 3721-st accessory and each channe...

  • Page 165

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-15 connection information: model 3721 refer to the following figure for model 3721 d-sub connection information. Figure 9-7: d-sub connecti...

  • Page 166

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-16 document number: 3700s-900-01 rev. A / august 2007 schematics: model 3721 the following figure provides a switching schematic for the model 3721 in two-pole mode. Figure 9-8: schematic of...

  • Page 167

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-17 the following figure provides a switching schematic for the model 3721 in four-wire common side ohm mode. Figure 9-9: schematic of the m...

  • Page 168

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-18 document number: 3700s-900-01 rev. A / august 2007 amps channel fuse replacement procedure warning disconnect all external power from the equipment and the line cord before performing any...

  • Page 169

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-19 figure 9-10: model 3721 shield removal figure 9-11: model 3721 fuse location rating type size keithley instruments part number 250v, 3a ...

  • Page 170

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-20 document number: 3700s-900-01 rev. A / august 2007 model 3721 connection log the following figures provides a sample of a connection log that can be used to record the wiring scheme for t...

  • Page 171

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-21 figure 9-13: sample model 3721 connection log (2 of 2).

  • Page 172

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-22 document number: 3700s-900-01 rev. A / august 2007 model 3722 dual 1x48 high density multiplexer card the model 3722 has two independent banks of 1x48 two-pole multiplexers, which is idea...

  • Page 173

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-23 connection information: model 3722 refer to the following figure for model 3722 d-sub connection information. Figure 9-15: d-sub connect...

  • Page 174

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-24 document number: 3700s-900-01 rev. A / august 2007 schematics: model 3722 the following figure provides a switching schematic for the model 3722. Figure 9-16: schematic for the model 3722.

  • Page 175

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-25 model 3722 connection log the following figures provides a sample of a connection log that can be used to record the wiring scheme for t...

  • Page 176

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-26 document number: 3700s-900-01 rev. A / august 2007 figure 9-18: sample model 3722 connection log (2 of 3).

  • Page 177

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-27 figure 9-19: sample model 3722 connection log (3 of 3).

  • Page 178

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-28 document number: 3700s-900-01 rev. A / august 2007 model 3723 dual 1×30 high-speed multiplexer card the model 3723 has two independent banks of high-speed 1×30 two-pole multiplexers that ...

  • Page 179

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-29 connection information: model 3723 refer to the following figure for model 3723 d-sub connection information. Figure 9-21: d-sub connect...

  • Page 180

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-30 document number: 3700s-900-01 rev. A / august 2007 schematics: model 3723 the following figure provides a switching schematic for the model 3723 in two-pole mode. Figure 9-22: schematic f...

  • Page 181

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-31 the following figure provides a switching schematic for the model 3723 in single-pole mode. Figure 9-23: schematic: model 3723 in one-po...

  • Page 182

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-32 document number: 3700s-900-01 rev. A / august 2007 model 3723 connection log (60 channel) the following figures provides a sample of a connection log that can be used to record the wiring...

  • Page 183

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-33 figure 9-25: sample model 3723 connection log (60 channel)(2 of 2).

  • Page 184

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-34 document number: 3700s-900-01 rev. A / august 2007 model 3723 connection log (120 channel) the following figures provides a sample of a connection log that can be used to record the wirin...

  • Page 185

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-35 figure 9-27: sample model 3723 connection log (120 channel)(2 of 4).

  • Page 186

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-36 document number: 3700s-900-01 rev. A / august 2007 figure 9-28: sample model 3723 connection log (120 channel)(3 of 4).

  • Page 187

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-37 figure 9-29: sample model 3723 connection log (120 channel)(4 of 4).

  • Page 188

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-38 document number: 3700s-900-01 rev. A / august 2007 model 3730 6×16 high-density matrix card the model 3730 is a two-pole, 6 row by 16 column matrix card. It can connect up to six differen...

  • Page 189

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-39 connection information: model 3730 refer to the following figure for model 3730 d-sub connection information. Figure 9-31: d-sub connect...

  • Page 190

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-40 document number: 3700s-900-01 rev. A / august 2007 model 3730 connection log the following figures provides a sample of a connection log that can be used to record the wiring scheme for t...

  • Page 191

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-41 figure 9-34: sample model 3730 connection log (2 of 3).

  • Page 192

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-42 document number: 3700s-900-01 rev. A / august 2007 figure 9-35: sample model 3730 connection log (3 of 3).

  • Page 193

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-43 model 3740 32-channel isolated switch card the model 3740 offers 28 general-purpose form c channels that are ideal for routing power or ...

  • Page 194

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-44 document number: 3700s-900-01 rev. A / august 2007 connection information: model 3740 refer to the following figure for model 3740 d-sub connection information. Figure 9-37: d-sub connect...

  • Page 195

    Series 3700 system switch/multimeter user's manual section 9: series 3700 module schematics and connections document number: 3700s-900-01 rev. A / august 2007 9-45 schematics: model 3740 the following figure provides a switching schematic for the model 3740. Figure 9-38: schematic for the model 3740

  • Page 196

    Section 9: series 3700 module schematics and connections series 3700 system switch/multimeter user's manual 9-46 document number: 3700s-900-01 rev. A / august 2007 model 3740 connection log the following figure provides a sample of a connection log that can be used to record the wiring scheme for th...

  • Page 197: Specifications

    Appendix a specifications in this section: model 3706 multimeter / data acquisition system specifications model 3720 dual 1x30 multiplexer specification model 3721 dual 1x20 channel multiplexer specifications model 3722 dual 1x48, high density multiplexer specifications model 3723 dual 1x30, high sp...

  • Page 198

    3706 multimeter / switch system rev a 9/14/07 3706 multimeter / data acquisition system rev a 09/14/07 function range 1 resolution test current or burden voltage input resistance or open ckt. Voltage 2 24 hour 3 23 qc r 1q 90 day 23 qc r 5q 1 year 23 qc r 5q temperature coefficient 0 q -18qc & 28q -...

  • Page 199

    3706 multimeter / switch system rev a 9/14/07 dc dc speeds vs. Rms noise 10, 11 rms noise 16 ppm of range measurements into buffer 13 measurement to pc 13 single channel, 60hz (50hz) operation rms noise calculator add 2.5 x “rms noise” to “ppm of range” (e.G. 10v @ 0.006plc) “ppm of range” = 2.5 x 7...

  • Page 200

    3706 multimeter / switch system rev a 9/14/07 system performance system performance 13, 14 4-1/2 digit mode, azero off and nplc=0.0005 function function change (msec) range change (msec) auto- range (msec) dcv or 2w : ( :) 10 10 10 4w : ( 20 20 20 dci 10 10 10 frequency or period 22 10 acv or aci 17...

  • Page 201

    3706 multimeter / switch system rev a 9/14/07 dc notes end dc dc notes 1. 20 % overrange except 1% on 300v and 3.33% on 3a. 2. ±5% (measured with 10m : input resistance dmm, >10g: dmm on 10m: and 100m: ranges). Refer to table for other 2w/4w configurations. For dry circuit, +20%, : o 2k : ranges. Oc...

  • Page 202

    3706 multimeter / switch system rev a 9/14/07 ac accuracy: ± (% of reading + % of range) 23 qc r 5q function range 1 resolution calibration cycle 3 hz – 5hz 5hz – 10hz 10hz – 20khz 20khz – 50khz 50khz – 100khz 100khz – 300khz voltage 2 100.0000mv 0.1 pv 90 day 1.0 + 0.03 0.30 + 0.03 0.05 + 0.03 0.11...

  • Page 203

    3706 multimeter / switch system rev a 9/14/07 end general specifications expansion slots: 6 power line: universal, 100v to 240v. Line frequency: 50hz and 60hz, automatically sensed at power-up. Power consumption: 28va with dmm and display, up to 140va with ( 6 ) 3700 cards. Operating environment: sp...

  • Page 204

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3720 rev. A / september 2007 page 1 of 3 model 3720 dual 1x30 multiplexer specification 60 differential channels, automatic cjc w/3720-st acces...

  • Page 205

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 (440) 248-0400 www.Keithley.Com specifications are subject to change without notice. Page 2 of 3 spec-3720 rev. A / september 2007 model 3720 dual 1x30 multiplexer specification 60 differential channels, automatic cjc w/3720-st acces...

  • Page 206

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3720 rev. A / september 2007 page 3 of 3 model 3720 dual 1x30 multiplexer specification 60 differential channels, automatic cjc w/3720-st acces...

  • Page 207

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3721 rev. A / september 2007 page 1 of 3 model 3721 dual 1x20 channel multiplexer specifications 40 differential channels, automatic cjc w/3721...

  • Page 208

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 (440) 248-0400 www.Keithely.Com specifications are subject to change without notice. Page 2 of 3 spec-3721 rev. A / september 2007 model 3721 dual 1x20 channel multiplexer specifications 40 differential channels, automatic cjc w/3721...

  • Page 209

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3721 rev. A / september 2007 page 3 of 3 model 3721 dual 1x20 channel multiplexer specifications 40 differential channels, automatic cjc w/3721...

  • Page 210

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3722 rev. A / september 2007 page 1 of 3 model 3722 dual 1x48, high density multiplexer specifications 96 differential channels, 300v volts/1 a...

  • Page 211

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 (440) 248-0400 www.Keithley.Com specifications are subject to change without notice. Page 2 of 3 spec-3722 rev. A / september 2007 model 3722 dual 1x48, high density multiplexer specifications 96 differential channels, 300v volts/1 a...

  • Page 212

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3722 rev. A / september 2007 page 3 of 3 model 3722 dual 1x48, high density multiplexer specifications 96 differential channels, 300v volts/1 a...

  • Page 213

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3723 rev. A / september 2007 page 1 of 3 model 3723 dual 1x30, high speed multiplexer specifications 60 differential channels, long life reed r...

  • Page 214

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Page 2 of 3 spec-3723 rev. A / september 2007 model 3723 dual 1x30, high speed multiplexer specification 60 differential channels, long life reed re...

  • Page 215

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3723 rev. A / september 2007 page 3 of 3 model 3723 dual 1x30, high speed multiplexer specifications 60 differential channels, long life reed r...

  • Page 216

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3730 rev. A / september 2007 page 1 of 3 model 3730 6x16 matrix specifications 96 two-pole crosspoints with column expansion relays matrix conf...

  • Page 217

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 (440) 248-0400 www.Keithley.Com specifications are subject to change without notice. Page 2 of 3 spec-3730 rev. A / septermber 2007 model 3730 6x16 matrix specifications 96 two-pole crosspoints with column expansion relays general: a...

  • Page 218

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3730 rev. A / september 2007 page 3 of 3 model 3730 6x16 matrix specifications 96 two-pole crosspoints with column expansion relays.

  • Page 219

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3740 rev. A / september 2007 page 1 of 3 model 3740 32 channel isolated switch card specifications 28 form c relays and 4 high power form a rel...

  • Page 220

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 (440) 248-0400 www.Keithley.Com specifications are subject to change without notice. Page 2 of 3 spec-3740 rev. A / september 2007 model 3740 32 channel isolated switch card specifications 28 form c relays and 4 high power form a rel...

  • Page 221

    Keithley instruments, inc. 28775 aurora road cleveland, ohio 44139 1-888-keithley www.Keithley.Com specifications are subject to change without notice. Spec-3740 rev. A / september 2007 page 3 of 3 model 3740 32 channel isolated switch card specifications 28 form c relays and 4 high power form a rel...

  • Page 223: Index

    Document number: 3700s-900-01 rev. A / august 2007 index - 1 + +5v output (pins 22, 23, and 25) • 3-4 queries • 4-5, 4-13 2 2-wire functions • 4-14 3 3-wire rtd connections • 5-43 4 4-wire functions (paired channels) • 4-14 4-wire rtd connections • 5-45 a ac voltage measurements and crest factor • 5...

  • Page 224

    Index - 2 document number: 3700s-900-01 rev. A / august 2007 bus operation • 3-10 c cable leakage • 5-19 calculated measurement open voltage • 5-32 calculated measurement open voltage (dry-circuit) • 5-34 chan key • 2-7 chan key configuration • 2-7 channel and backplane notation • 4-10 channel assig...

  • Page 225

    Document number: 3700s-900-01 rev. A / august 2007 index - 3 dmm functions • 6-5 dmm key • 2-10 dmm key configuration • 2-7, 2-11 dmm measurement capabilities • 5-1 dmm.Opendetector open voltage • 5-32 dry circuit ohms (dry+) • 5-23 dry circuit ohms measurement considerations • 5-26 dry circuit test...

  • Page 226

    Index - 4 document number: 3700s-900-01 rev. A / august 2007 identifying installed modules and viewing closed channels • 4-15 inputdiv • 2-12 insert key • 2-16 instrument fuse • 3-1, 3-2 internal reference junction • 5-36 introduction • 1-1, 8-1 isour open voltage • 5-31 l lan commands • 6-9 limit •...

  • Page 227

    Document number: 3700s-900-01 rev. A / august 2007 index - 5 n nplc • 2-12 o offset compensated ohms (oc+) • 5-17 offsetcomp • 2-12 offset-compensated ohms • 5-20 opc function • 6-11 open all key • 2-17 open key • 2-18 open lead detection • 5-30, 5-37 open thermocouple detection • 5-37 opendetect • ...

  • Page 228

    Index - 6 document number: 3700s-900-01 rev. A / august 2007 run key • 2-15 s safety symbols and terms • 1-4 scan functions • 6-12 scan key • 2-9 scan key configuration • 2-7, 2-9 schematic • 5-7, 5-16 schematics model 3720 • 9-10 model 3721 • 9-16 model 3722 • 9-24 model 3723 • 9-30 model 3730 • 9-...

  • Page 229

    Document number: 3700s-900-01 rev. A / august 2007 index - 7 tsp-link connector • 3-1, 3-2 tsplink functions and attributes • 6-17 u units • 2-13 upgrade function • 6-17 upgrade procedure using usb flash drive • 7-1 usb connectors • 2-1, 3-1, 3-4 userstring functions • 6-18 using the front panel • 2...

  • Page 231: Service Form

    12/06 service form model no. Serial no. Date name and telephone no. Company list all control settings, describe problem and check boxes that apply to problem. ❏ intermittent ❏ analog output follows display ❏ particular range or function bad; specify ❏ ieee failure ❏ obvious problem on power-up ❏ bat...

  • Page 232

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  • Page 234

    12/06 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. 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 instru...