Keithley 3700 series Manuals

Manuals and User Guides for Keithley 3700 series. We have 5 Keithley 3700 series manuals available for free PDF download: Reference Manual, User Manual, Installation Instructions Manual

Keithley 3700 series Reference Manual (657 pages)

System Switch/Multimeter

Brand: Keithley | Category: Test Equipment | Size: 7 MB

Limitation of Warranty
3
Safety Precautions
7
Table of Contents
9
Contact Information
23
Overview
23
In this Section
23
Introduction
23
Measure and Switching Capabilities
24
Warranty Information
24
Figure 1-1: DMM Measurement Capabilities
24
Displaying the Unit's Serial Number
25
TSP Programming Fundamentals
27
Introduction
27
Test Script Processor (TSPTM)
28
Run-Time Environment
29
Queries
29
Scripts
30
Named Scripts
31
Programming Overview
32
Chunk Defined
32
Script Defined
33
Figure 2-1: TSP Test Script Example
33
Run-Time Environment
34
Nonvolatile Memory
34
TSPTM Programming Levels
34
Programming Model for Scripts
35
Figure 2-2: Programming Model for Scripts
35
Installing the TSPTM Software
36
System Connections
36
Rear Panel Summary
36
Figure 2-3: Rear Panel Features
36
GPIB Interface Connection
37
Figure 2-4: GPIB Cable
37
GPIB Address
38
Standard RJ-45 (Ethernet) Interface Connection
38
USB Connection
39
Using Test Script Builder (TSB)
39
Project Navigator
40
Script Editor
40
Figure 2-5: Using Test Script Builder (TSB)
40
Programming Interaction
41
Sending Commands and Statements
41
Measure Voltage
41
Read and Write to the Digital I/O Port
42
Display User-Defined Messages
42
User Scripts
42
Script Examples
43
Creating a User Script
46
Saving a User Script
48
Loading a User Script
50
Running a User Script
51
Loading a Script from the Series 3700 Front Panel
54
Saving a Script from the Series 3700 Front Panel
55
Modifying a User Script
55
Script Management
56
Differences: Remote Versus Local State
58
Remote State
58
Local State
58
TSP-Linktm System
58
Stand-Alone System
59
Test Script Language (TSL) Reference
59
Introduction
59
Variables and Types
60
Operators
60
Functions
61
Tables/Arrays
62
Precedence
63
Logical Operators
64
Concatenation
65
Branching
66
Loop Control
67
Standard Libraries
68
Base Library Functions
69
String Library Functions
70
Math Library Functions
71
Introduction
73
In this Section
73
TSP Advanced Features
73
Figure 3-1: Multiple TSP-Link Networks
74
Figure 3-2: Single TSP-Link Network with Groups
75
Using Groups to Manage Nodes on TSP-Linktm Network
76
Master Node Overview
77
Group Leader Overview
77
Assigning Groups
77
Reassigning Groups
78
Running Parallel Test Scripts
78
Coordinating Overlapped Operations in Remote Groups
79
Using the Data Queue for Real-Time Communication
80
Copying Test Scripts Across the TSP-Linktm Network
80
Removing Stale Values from the Reading Buffer
81
Commands Related to TSP Advanced Features
82
Using the Front Panel
89
In this Section
89
Front Panel Introduction
89
Figure 4-1: Model 3706 System Switch/Multimeter
90
Figure 4-2: Model 3706-S System Switch (no DMM)
90
Figure 4-3: Model 3706-NFP System Switch/Multimeter
91
Figure 4-4: Model 3706-SNFP System Switch (no DMM)
91
Display
92
Figure 4-5: Active Channel Display Example
93
Figure 4-6: MAIN MENU Display
95
Channel Type Indication
96
Using the Front Panel with Non-Switch Channels
97
Special Keys and Power Switch
99
CONFIG Key
99
CONFIG CHAN Key
99
DISPLAY Key
104
POWER Switch
105
RESET Switch
105
Operation Keys
105
CHAN Key
105
DELETE Key
108
DMM Key
109
ENTER Key
113
EXIT Key
113
FILTER Key
113
Function Key
114
INSERT Key
114
LIMIT Key
115
LOAD Key
115
MENU Key
116
PATT Key
117
REL Key
118
RUN Key
118
SCAN Key
119
SLOT Key
120
TRIG Key
120
Range Keys, Cursor Keys, and Navigation Wheel
120
AUTO Key
120
CURSOR Keys
120
Navigation Wheel
121
RANGE Keys
121
Action Keys
121
CLOSE Key
121
OPEN ALL Key
121
OPEN Key
122
RATE Key
122
Recall Key
122
STEP Key
122
STORE Key
123
Range
125
Measurement Ranges and Maximum Readings
125
Range, Digits, Rate, Bandwidth, and Filter
125
In this Section
125
Manual Range Keys
126
Auto Ranging over the Front Panel
127
Scanning
127
Range Remote Programming (ICL)
127
Digits ICL Programming
128
Scanning
128
Setting Digits
128
Rate
129
Figure 5-1: Speed Versus Noise Characteristics
129
Setting Rate from the Front Panel
131
Setting Measurement Speed from a Remote Interface
131
Bandwidth
131
Filter
132
Filter Characteristics
132
Figure 5-2: Moving Average Filter
133
Figure 5-3: Repeating Average Filter
133
Digital Filter Window
134
Figure 5-4: Filter Window
135
Relative, Math, and Db
137
Relative
137
Basic Front Panel REL Procedure
138
REL Remote Operation
138
Scanning
139
Math Calculations
139
MX+B
140
Percent
142
Reciprocal (1/X)
143
Db Commands
146
Db Configuration
146
Db Scanning
147
Buffer: Data Storage and Retrieval
149
Buffer Overview
149
Front Panel Operation
150
Creating and Selecting a Reading Buffer
150
Selecting a Reading Buffer
151
Storing Readings
151
Saving Readings
151
Clearing Readings
152
Deleting a Reading Buffer
153
Recalling Readings
153
Time Stamp
153
Channel Display
154
Buffer Configuration (Front Panel)
154
Appending Readings
155
Remote Buffer Operation
155
Data Store (Buffer) Commands
156
Reading Buffers
160
Buffer Read-Only Attributes
161
Time and Date Values
164
Buffer Status
164
Dynamically-Allocated Buffers
165
Dynamic Buffer Programming Example
166
Exceeding Reading Buffer Capacity
169
In this Section
173
Scanning Fundamentals
173
Scanning
173
Channel Assignments
174
Events
174
Figure 8-1: Event Detector
174
Event Blenders
175
Foreground and Background Scan Execution
175
Trigger Model
176
Figure 8-2: Trigger Model
176
Trigger Model Components
177
Scan and Step Counts
179
Basic Scan Procedure
179
Buffer
181
Changing Channel and DMM Attributes of an Existing Scan
181
Front Panel Scanning
182
Scan Configuration
183
Bus Operation Scanning
184
ICL Commands
184
Scanning Examples
186
Hardware Trigger Modes
190
Set each Channel so It Closes with a Digio 1 Event Trigger. Scan.trigger.channel.stimulus = Digio.trigger[1].Event_Id
190
Scan.bypass = Scan.off
190
Create Scan for Channels 1 to 60 on the Card Installed
190
In Slot 3
190
Scan.create('3001:3060', 'Mydcv')
190
Initiate the Scan to Execute in the Background and Save
190
Readings to a Buffer Called "Mybuffer
190
Scan.background(Mybuffer)
190
Digio.trigger[1].Mode = Digio.trig_Falling
190
Falling Edge Trigger Mode
192
Figure 8-3: Falling Edge Input Trigger
192
Figure 8-4: Falling Edge Output Trigger
192
Rising Edge Master Trigger Mode (Version 1.4.0 or Higher)
193
Figure 8-5: Risingm Output Trigger
193
Rising Edge Acceptor Trigger Mode (Version 1.4.0 or Higher)
194
Figure 8-6: Risinga Input Trigger
194
Figure 8-7: Risinga Output Trigger
194
Either Edge Trigger Mode
195
Figure 8-8: Either Edge Input Trigger
195
Understanding Synchronous Triggering Modes
196
Figure 8-9: Either Edge Output Trigger
196
Figure 8-10: Synchronousm Input Trigger
197
Figure 8-11: Synchronousm Output Trigger
198
Figure 8-12: Synchronousa Input Trigger
199
Figure 8-13: Synchronousa Output Trigger
199
Synchronous Trigger Mode
200
Figure 8-14: Synchronous Input Trigger
200
Figure 8-15: Synchronous Output Trigger
201
In this Section
203
File Formats
203
Default File Extensions
203
Files
203
File System Navigation
204
File I/O
205
Script Examples
206
Command Table Entries
211
In this Section
217
Overview
217
TSP-Nettm Capabilities
217
TSP-Net
217
Using TSP-Nettm with any Ethernet-Enabled Device
218
Example Script
219
Using TSP-Nettm Vs. TSP-Linktm for Communication with TSP-Enabled Devices
220
Instrument Control Library (ICL) - General Device Control
221
Instrument Control Library - TSP-Specific Device Control
228
LXI Class B Triggering (IEEE-1588)
231
In this Section
231
Introduction to IEEE-1588 Based Triggering
231
IEEE-1588 Implementation in the Series 3700
231
Correlating PTP to Coordinated Universal Time (UTC)
232
Configuring and Enabling IEEE-1588
233
Scheduling Alarms
235
Monitoring Alarms with LAN Triggers and LXI Event Log
236
LXI Event Log
237
Example Applications of IEEE-1588 in Series 3700-Based Systems
237
Synchronizing Multiple Series 3700 Instruments
239
Status Model
241
Status Register Sets
241
Negative and Positive Transition Registers
242
Status Byte and SRQ
242
Queues
242
Figure 12-1: Status Byte and Queues
242
System Summary and Status Byte
243
Figure 12-2: Status Byte and System Summary Register
243
System Summary Registers
244
Figure 12-3: System Summary Registers
244
Standard Event Status Register and Enable
245
Figure 12-4: Standard Event Registers and Event Status Enable
245
Operation Events Registers
246
Figure 12-5: Operation Event Registers
246
Questionable Event Register
247
Figure 12-6: Questionable Event Register
247
Measurement Event Register (Measurement)
248
Status Function Summary
248
Figure 12-7: Measurement Event Register
248
Clearing Registers and Queues
249
Programming Enable and Transition Registers
250
Figure 12-8: 16-Bit Status Register
250
Reading Registers
251
Status Byte and Service Request (SRQ)
252
Figure 12-9: Status Byte and Service Request (SRQ)
252
Status Byte Register
253
Serial Polling and SRQ
254
Service Request Enable Register
254
SPE, SPD (Serial Polling)
254
Status Byte and Service Request Commands
255
Enable and Transition Registers
255
Controlling Node and SRQ Enable Registers
256
Status Register Set Specifics
256
System Summary Event Registers
256
Standard Event Register
259
Figure 12-10: Standard Event Register
260
Operation Event Registers
261
Questionable Event Registers
263
Measurement Event Registers
264
Queues
265
Output Queue
265
Error Queue
266
In this Section
267
Command Programming Notes
267
Wild Characters
267
Instrument Control Library (ICL)
267
Functions and Attributes
268
Syntax Rules
270
TSP-Linktm Nodes
271
Logical Instruments
271
Query Commands
272
DMM Configuration
274
ICL Command List
277
Beeper Functions and Attributes
282
Bit Functions
283
Channel Functions and Attributes
290
Figure 13-2: Multiplexer Card Display
292
Figure 13-3: Matrix Card Display
293
Dataqueue Functions and Attributes
351
Delay Functions
352
Digio Functions and Attributes
353
Display Functions and Attributes
359
DMM Functions and Attributes
375
Errorqueue Functions and Attributes
442
Eventlog Functions and Attributes
443
Exit Functions
446
File Functions
447
Format Attributes
449
Fs Functions
452
Gpib Attributes
453
Io Functions
454
LAN Functions and Attributes
456
Makegetter Functions
484
Memory Functions
485
Opc Functions
486
Print Functions
487
Ptp Functions and Attributes
489
Reset Functions
496
Scan Functions and Attributes
496
Schedule Functions and Attributes
516
Setup Functions and Attributes
518
Slot[X] Attributes
521
Status Functions and Attributes
530
Figure 13-4: Status Byte and Queues
530
Timer Functions
552
Trigger Functions and Attributes
553
Trigger.timer Functions and Attributes
556
Tsplink Functions and Attributes
560
Tsplink.trigger Functions and Attributes
561
Tspnet Functions and Attributes
566

Keithley 3700 series Reference Manual (434 pages)

System Switch/Multimeter

Brand: Keithley | Category: Switch | Size: 8 MB

Safety Precautions
5
Table of Contents
7
Introduction
17
Introduction

18
TSP Programming Fundamentals

21
- Test Script Processor (TSP)
  21
- Run-Time Environment
  22
- Queries
  22
- Scripts
  23
- Named Scripts
  23
- Programming Overview
  24
  - Chunk Defined
    24
  - Script Defined
    25
  - Figure 2-1: TSP Test Script Example
    25
  - Run-Time Environment
    26
  - Nonvolatile Memory
    26
  - TSP Programming Levels
    26
  - Programming Model for Scripts
    27
- Installing the TSP Software
  27
- Figure 2-2: Programming Model for Scripts
  27
- System Connections
  28
  - Rear Panel Summary
    28
  - Figure 2-3: Rear Panel Features
    28
  - GPIB Interface Connection
    29
  - Figure 2-4: GPIB Cable
    29
  - Standard RJ-45 (Ethernet) Interface Connection
    30
  - USB Connection
    30
- Using Test Script Builder
  30
  - Project Navigator
    31
  - Figure 2-5: Using TSP Builder
    31
  - Script Editor
    32
  - Programming Interaction
    32
- Sending Commands and Statements
  32
- Measure Voltage
  32
  - Read and Write to Digital I/O Port
    32
  - Display User-Defined Messages
    33
- User Scripts
  33
  - Script Examples
    33
  - Saving a User Script
    37
  - Running a User Script
    38
  - Modifying a User Script
    40
  - Script Management
    40
- Differences: Remote Vs. Local State
  42
  - Remote State
    42
- Test Script Language (TSL) Reference
  43
  - Introduction
    43
  - Variables and Types
    44
  - Operators
    44
  - Functions
    45
  - Tables/Arrays
    46
  - Precedence
    47
  - Logical Operators
    48
  - Concatenation
    49
  - Branching
    49
  - Loop Control
    50
  - Standard Libraries
    52
Using the Front Panel

57
Range, Digits, Rate, Bandwidth, and Filter

77
- Range
  77
  - Measurement Ranges and Maximum Readings
    77
  - Manual Ranging
    78
  - Auto Ranging over the Front Panel
    78
  - Scanning
    79
  - Range Remote Programming (ICL)
    79
- Digits ICL Programming
  79
  - Setting Digits
    80
- Rate
  80
- Bandwidth
  82
- Filter
  82
Relative, Math, and Db

87
- Relative
  87
  - Basic Front Panel Operation Procedure
    87
  - REL Remote Operation
    88
  - Scanning
    88
- Math
  89
  - MX+B
    89
  - Percent
    91
  - Reciprocal (1/X)
    92
- Db Commands
  93
  - Db Configuration
    94
  - Db Scanning
    94
Buffer: Data Storage and Retrieval

95
- Buffer Overview
  95
- Front Panel Operation
  95
  - Procedure to Store Readings
    95
  - Procedure to Save Readings
    96
  - Procedure to Clear Readings
    96
  - Recalling Readings
    97
  - Buffer Configuration (Front Panel)
    97
  - Append
    98
- Remote Buffer Operation
  98
  - Data Store (Buffer) Commands
    98
  - Reading Buffers
    98
  - Time and Date Values
    102
  - Buffer Status
    103
  - Dynamically-Allocated Buffers
    103
  - Dynamic Buffer Programming Example
    104
  - Exceeding Reading Buffer Capacity
    105
Scanning

109
- Scanning Fundamentals
  109
  - Channel Assignments
    109
  - Sequential and Non-Sequential Scans
    109
  - Foreground and Background Scan Execution
    110
  - Pseudocards
    110
  - 2-Wire Scan Process
    111
  - Trigger Model
    112
  - Figure 7-1: Trigger Model
    112
  - Trigger Model Components
    113
  - Events
    114
  - Event Blenders
    114
- Front Panel Scanning
  115
  - Scan Configuration
    115
  - SCAN Operation
    116
  - STEP Operation
    117
  - Basic Scan Procedure
    117
- Bus Operation Scanning
  118
  - ICL Commands
    118
  - Examples
    120
- Status Register Sets
  123
  - Negative and Positive Transition Registers
    123
Status Model

123
- Status Byte and SRQ
  124
  - Queues
    124
  - Figure 8-1: Status Byte and Queues
    124
- System Summary and Status Byte
  125
- Figure 8-2: Status Byte and System Summary Register
  125
- System Summary Registers
  126
- Figure 8-3: System Summary Registers
  126
- Standard Event Status Register and Enable
  127
- Operation Events Registers
  127
- Figure 8-4: Standard Event Registers and Event Status Enable
  127
- Figure 8-5: Operation Event Registers
  127
- Questionable Event Register
  128
- Measurement Event Register
  128
- Figure 8-6: Questionable Event Register
  128
- Figure 8-7: Measurement Event Register
  128
- Status Function Summary
  129
- Clearing Registers and Queues
  129
- Programming Enable and Transition Registers
  130
- Figure 8-8: 16-Bit Status Register
  130
- Reading Registers
  131
- Status Byte and Service Request (SRQ)
  132
  - Status Byte Register
    132
  - Figure 8-9: Status Byte and Service Request (SRQ)
    132
  - Serial Polling and SRQ
    133
  - Service Request Enable Register
    134
  - SPE, SPD (Serial Polling)
    134
  - Status Byte and Service Request Commands
    134
  - Enable and Transition Registers
    135
  - Controlling Node and SRQ Enable Registers
    135
- Status Register Set Specifics
  135
  - System Summary Event Registers
    135
  - Standard Event Register
    138
  - Figure 8-10: Standard Event Register
    139
  - Operation Event Registers
    140
  - Questionable Event Registers
    141
  - Measurement Event Registers
    142
- Queues
  142
  - Output Queue
    142
  - Error Queue
    142
Instrument Control Library (ICL)

145
- Command Programming Notes
  145
  - Wild Characters
    145
  - Functions and Attributes
    146
  - TSP-Link Nodes
    148
  - Logical Instruments
    149
  - Query Commands
    149
  - DMM Configuration
    150
- Beeper Functions and Attribute
  152
- Bit Functions
  153
  - Logic and Bit Operations
    153
- Channel Functions and Attributes
  160
- Figure 9-2: Multiplexer Card Display
  161
- Figure 9-3: Matrix Card Display
  162
- Delay Function
  192
- Digio Functions and Attributes
  192
- Display Functions and Attributes
  198
- DMM Functions
  213
  - Changing Filter Settings
    233
- Errorqueue Functions and Attributes
  267
- Eventlog Functions and Attributes
  269
- Exit Function
  271
- Format Attributes
  271
- Gpib Attribute
  274
- Makegetter Functions
  274
- ICL LAN Commands
  276
- Localnode Attributes
  292
  - Localnode.define
    292
- Opc Function
  299
- Printbuffer
  299
- Reset Function
  300
- Scan Functions
  301
- Setup Functions and Attribute
  318
- Slot[X] Attributes
  320
- Status Function and Attributes
  330
  - Status Byte and SRQ
    330
  - Figure 9-4: Status Byte and Queues
    330
- Timer Functions
  352
- Trigger.timer
  353
- Tsplink.trigger
  356
  - Tsplink.trigger[N].Triggerstimulus
    358
- Trigger Functions
  359
  - Trigger.blender
    360
- Tsplink Function and Attributes
  362
- Userstring Functions
  363
- Upgrade
  365
- Waitcomplete Function
  366

Keithley 3700 series User Manual (292 pages)

Brand: Keithley | Category: Switch | Size: 9 MB

Table of Contents
10
Introduction
22
Contact Information
22
Overview
22
Measure and Switching Capabilities
23
Reference Manual Content
23
Figure 1-1: DMM Measurement Capabilities
23
Warranty Information
24
Displaying the Unit's Serial Number
24
Using the Front Panel
27
Figure 2-1: Model 3706 System Switch/Multimeter
27
Figure 2-2: Model 3706-S System Switch (no DMM)
27
Figure 2-3: Model 3706-NFP System Switch/Multimeter
28
Figure 2-4: Model 3706-SNFP System Switch (no DMM)
28
Display
29
Figure 2-5: Active Channel Display Example
30
Channel Type Indication
32
Figure 2-6: MAIN MENU Display
32
Using the Front Panel with Non-Switch Channels
33
Special Keys and Power Switch
35
CONFIG Key
35
CONFIG CHAN Key
35
DISPLAY Key
40
POWER Switch
41
RESET Switch
41
Operation Keys
41
CHAN Key
41
DELETE Key
44
DMM Key
44
ENTER Key
48
EXIT Key
49
FILTER Key
49
Function Key
50
INSERT Key
50
LIMIT Key
51
LOAD Key
51
MENU Key
52
PATT Key
53
REL Key
54
RUN Key
54
SCAN Key
55
SLOT Key
56
TRIG Key
56
Range Keys, Cursor Keys, and Navigation Wheel
56
AUTO Key
56
CURSOR Keys
56
Navigation Wheel
57
RANGE Keys
57
Action Keys
57
CLOSE Key
57
OPEN ALL Key
57
OPEN Key
58
RATE Key
58
Recall Key
58
STEP Key
58
STORE Key
59
Rear Panel
60
Rear Panel Summary
60
Figure 3-1: Rear Panel Features
60
Rear Panel Connections
61
Analog Backplane AMPS Fuse
61
Slots
61
TSP-Linktm Connector
61
Instrument Fuse
61
Power Connector
61
Digital I/O Port
62
Figure 3-2: Digital I/O Port
62
GPIB Connector
63
Ethernet Connector (RJ-45)
63
USB Connectors
64
Figure 3-3: USB Connectors
64
Analog Backplane Connector
65
Figure 3-4: Analog Backplane Connector
65
Switching Module Installation and Connections
66
Module Installation
67
Figure 3-5: Typical Module Installation
68
Connections
69
Pseudocards
70
Channel Assignments
70
Bus Operation
71
Power-Up
73
Line Power Connection
73
Power-Up Sequence
74
Close-Open Overview
76
Overview
76
Channel Designations
76
Channel and Backplane Notation
76
Figure 4-1: Multiplexer Card Display
78
Selecting a Range of Channels on the Front Panel
79
Figure 4-2: Matrix Card Display
79
Channel List Parameter <Ch_List
81
Channel Attributes
82
Setting and Querying Channel Attributes
84
Closing and Opening Channels
84
Close/Open Channel Operations and Commands
85
Figure 4-3: Two-Wire Function
86
Figure 4-4: Four-Wire Function
87
Front Panel Close and Open Keys
88
Examples of Switch-Only and Switch with DMM Operations
88
Viewing Close/Open Status of a Channel
89
Connection Methods for Close Operations
90
Channel Patterns
93
Creating Channel Patterns
93
Performing Close and Open Operations on Channel Patterns
96
Relay Closure Count
97
Identifying Installed Modules
98
Switching Module Queries (Remote Operation)
98
Basic Digital Multimeter (DMM) Operation
100
DMM Measurement Capabilities
100
High-Energy Circuit Safety Precautions
101
Performance Considerations
102
Warm up
102
Autozero
102
Line Cycle Synchronization
103
Figure 5-1: Line Cycle Synchronization
104
Figure 5-2: 4-Wire Line Synchronization Block Diagram
104
Figure 5-3: 1Plc Line Sychronization Block Diagram
105
Voltage Measurements (DCV and ACV)
106
Figure 5-4: Line Sync off and on <1Plc
106
DCV Input Divider
107
Connections
107
Figure 5-5: DCV Connection
108
Figure 5-6: ACV Connection
108
Fast DCV Measurements
109
Figure 5-7: 3706 ACV Input on DCV at 0.0005Plc
109
Schematic
110
Figure 5-8: Rear Panel to Backplane to DMM Connect Relays Schematic
110
Voltage Measurement Procedure
111
AC Voltage Measurements and Crest Factor
112
Figure 5-9: ACV Measurements: Sine Waves
113
Figure 5-10: ACV Measurements: Square, Pulse, and Sawtooth Waves
114
Auto Delay
115
Measure Count
118
Figure 5-11: Autodelay Off, Once, and on Timeline
118
Speed, Accuracy, and Settling Times for AC Current and Voltage
119
Figure 5-12: Simplified ACV Detector Bandwidth 300 (FAST) Scan Block Diagram
119
Figure 5-13: Two Channel Scan Alternating from 1Vac to 100Mvac, 1Khz, with a Measurecount of
120
Low Level Considerations
122
Current Measurements (DCI and ACI)
124
AMPS Analog Backplane Fuse Replacement
124
Resistance Measurements
125
Basic Resistance Measurements
125
Offset Compensated Ohms (OC+)
126
Optimizing Low Ohm Measurement and Speed
126
Amps Measurement Procedure
127
Dry Circuit Testing (DRY+)
127
Connections
128
Figure 5-14: Two-Wire Resistance Measurements
128
Figure 5-15: Four-Wire Resistance Measurement
129
Figure 5-16: Two-Wire Switching Module Resistance Connection
129
Figure 5-17: Four-Wire Switching Module Resistance Connection
130
Standard Resistance Measurements
131
Offset-Compensated Ohms
131
Figure 5-18: Enabling Offset-Compensated Ohms
132
Figure 5-19: Four-Wire Ohm ATTR MENU: OFFSETCOMP
133
Dry Circuit Ohms (DRY+)
134
Figure 5-20: Enabling Dry-Circuit Ohms
136
Figure 5-21: Four-Wire Ohm ATTR MENU: DRYCIRCUIT
136
Measurement Methods
138
Figure 5-22: Two-Wire Constant-Current Source Method
139
Figure 5-23: Four-Wire Constant-Current Source Method
139
Figure 5-24: Two-Wire Ratiometric Method
140
Figure 5-25: Four-Wire Ratiometric Method
141
Figure 5-26: Fast Alternating Scan Block Diagram
142
Open Lead Detection
144
Figure 5-27: Simplified Normal 4W Open Detection Schematic
145
Figure 5-28: Model 3706 Internal DMM
146
Figure 5-29: 4W Open Detector with 3700 Card
147
Figure 5-30: Simplified Dry-Circuit Open V-Clamp Feedback Loop Schematic
150
Temperature Measurements
151
Thermocouples
151
Figure 5-31: Thermocouple Open Detector Drawing
156
Figure 5-32: Simulated Reference Junction
158
Figure 5-33: Simulated Reference Junction Switching Module
158
Figure 5-34: Internal Reference Junction (40 Channel Switching Module)
158
Thermistors
160
Figure 5-35: Thermistor Analog Backplane Connection
161
Figure 5-36: Thermistor Switching Module Connection
161
Rtds (Resistance Temperature Detector)
163
Figure 5-37: Three-Wire RTD Connections
164
Figure 5-38: Three-Wire RTD Switching Module Connections
164
Figure 5-39: Four-Wire RTD Connections
165
Figure 5-40: Four-Wire RTD Switching Module Connections
165
Temperature Measurement Configuration
167
Temperature Measurement Procedure
168
Frequency and Period Measurements
168
Trigger Level
169
Gate Time
169
Frequency Connections
169
Figure 5-41: FREQ and PERIOD Input Connections
169
Frequency and Period Measurement Procedure
170
Figure 5-42: FREQ and PERIOD Connections (Switching Module)
170
Continuity Testing
171
Continuity Testing Connections
171
Figure 5-43: Continuity Connections
171
Continuity Testing Procedure
172
Figure 5-44: Continuity Connections Using a Switching Module
172
Accuracy Calculations
173
Calculating DC Characteristics Accuracy
173
Calculating AC Characteristics Accuracy
174
Calculating Db Characteristics Accuracy
174
Additional Derating Factors
175
Optimizing Measurement Accuracy
176
Figure 5-45: Readings Rate Versus Aperture Time
176
DC Voltage, DC Current, and Resistance
177
AC Voltage and AC Current
177
Temperature
177
Figure 5-46: RMS Noise Vs. Aperture Time
177
Optimizing Measurement Speed
178
DC Voltage, DC Current, and Resistance
178
AC Voltage and AC Current
178
Temperature
178
Model 3750 Additional Information
180
Digital I/O
180
Simplified Jumper Configuration Model
181
Figure 6-1: Simplified Schematic of the Jumper Configuration
181
Figure 6-2: Simplified Schematic of a Digital I/O Channel
182
Sourcing Current to an External Load
183
Sinking Current and Overload Protection
183
Using Auto Protect Mode
183
Using External User Logic Circuits
183
Programming Overview
184
Counter/Totalizer
186
Using the Card to Count Closures
186
Figure 6-3: Switch Count Example
186
Using the Gating Function
187
Figure 6-4: Model 3750 Gate Setup Time Example
187
Analog Output
188
Configuring the Card for Output Type
189
Using the Card When Configured as Voltage Outputs
190
Using the Card When Configured as Current Outputs
191
Output Loading Precautions
192
Hardware Configuration
193
Figure 6-5: Removing the Top Shield
193
Figure 6-6: Location of P3 and J5 Jumpers
194
Calibration
195
Power Consumption Information
200
Using Match Counts
200
Setting and Meeting Match Counts
200
Using Match Counts to Generate an Event
201
Latching Values
202
Power Consumption Implications
203
Options for Working with Power Consumption Limitations
203
Upgrade Procedure Using USB Flash Drive
204
Firmware Upgrade from a USB Flash Drive
204
Upgrade Procedure
205
Maintenance
206
Introduction
206
Fuse Replacement
206
Front Panel Tests
207
Figure 8-1: Fuse Location
207
Test Procedure
208
Series 3700 Module Schematics and Connections
210
Maximum Power Usage with Series 3700 Cards
210
Power Budgeting and Calculation
211
Power Budgeting Examples
213
Pseudocards
218
Hardware Interlocks
219
Figure 9-1: Simplified Interlock Circuit
219
Engaging Hardware Interlocks
220
Interlock Status
220
Figure 9-2: Slot[X].Interlock.state ICL Command
220
Interlock Pin Numbers
221
Model 3720 Dual 1X30 Multiplexer Card
222
Available Accessories: Model 3720
222
Figure 9-3: Model 3720
222
Connection Information: Model 3720
223
Figure 9-4: D-Sub Connection Information for the Model 3720
223
Schematics: Model 3720
224
Figure 9-5: Schematic of the Model 3720
224
Figure 9-6: Models 3720, 3723, and 3724 Screw Terminal
225
Model 3720 Connection Log
226
Figure 9-7: Sample Model 3720 Connection Log (1 of 2)
226
Figure 9-8: Sample Model 3720 Connection Log (2 of 2)
227
Model 3721 Dual 1X20 Multiplexer Card
228
Available Accessories: Model 3721
228
Figure 9-9: Model 3721
228
Model 3721-ST Accessory Board Channel List
229
Connection Information: Model 3721
230
Figure 9-10: D-Sub Connection Information for the Model 3721
230
Schematics: Model 3721
231
Figure 9-11: Schematic of the Model 3721 in Two-Pole Mode
231
Figure 9-12: Schematic of the Model 3721 in Four-Wire Common Side Ohm Mode
232
Model 3721: AMPS Channels Fuse Replacement
233
Amps Channel Fuse Replacement Procedure
233
Figure 9-13: Removing the Top Shield
234
Figure 9-14: Fuse Location
234
Figure 9-15: Model 3721-ST
235
Model 3721 Connection Log
236

Keithley 3700 series Installation Instructions Manual (14 pages)

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