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HP 34970A
Data Acquisition
/
S
witch Unit
User’s Gu
ide
Part Number 34970-90002
October 1997
For Safety information, Warranties, and Regulatory informatio
n,
see the p
ages behin
d the Index
.
©
Copyright Hewlett-Packard Company 1997
All Rights Reserved.
2
Table of Contents
Main Page
Default Chapter
12
Table of Contents
12
Chapter 1 Quick Start
16
To Prepare the Instrument for Use
17
Installing HP Benchlink Data Logger Software
17
To Connect Wiring to a Module
17
To Set the Time and Date
17
Installing HP Benchlink Data Logger Software
19
To Connect Wiring to a Module
21
To Set the Time and Date
23
To Configure a Channel for Scanning
24
To Copy a Channel Configuration
26
To Close a Channel
27
If the Instrument Does Not Turn on
28
To Adjust the Carrying Handle
30
To Rack Mount the Instrument
31
Chapter 2 Front-Panel Overview
33
Front-Panel Menu Reference
35
To Monitor a Single Channel
37
To Set a Scan Interval
38
To Apply MX+B Scaling to Measurements
39
To Configure Alarm Limits
40
To Read a Digital Input Port
42
To Write to a Digital Output Port
43
To Read the Totalizer Count
44
To Output a DC Voltage
45
To Configure the Remote Interface
46
To Store the Instrument State
48
Chapter 3 System Overview
49
Data Acquisition System Overview
50
Signal Routing and Switching
57
Measurement Input
60
Control Output
67
SCPI Language Conventions
71
Chapter 4 Features and Functions
72
SCPI Language Conventions
72
Scanning
73
Automatic Channel Delays
88
Single-Channel Monitoring
92
Scanning with External Instruments
94
General Measurement Configuration
97
Temperature Measurement Configuration
105
Voltage Measurement Configuration
112
Voltage Measurement Configuration
113
Resistance Measurement Configuration
114
Current Measurement Configuration
115
Frequency Measurement Configuration
117
MX+B Scaling
118
Alarm Limits
121
Digital Input Operations
132
Digital Input Operations
133
Totalizer Operations
134
Digital Output Operations
137
DAC Output Operations
138
System-Related Operations
139
Remote Interface Configuration
149
Remote Interface Configuration
150
Calibration Overview
154
Calibration Overview
155
Factory Reset State
159
Instrument Preset State
160
Multiplexer Module Default Settings
161
Module Overview
162
HP 34901A 20-Channel Multiplexer
163
HP 34902A 16-Channel Multiplexer
165
HP 34903A 20-Channel Actuator
167
HP 34904A 4X8 Matrix Switch
169
HP 34904A 4X8 Matrix Switch
170
HP 34905A/6A Dual 4-Channel RF Multiplexers
171
HP 34907A Multifunction Module
173
HP 34908A 40-Channel Single-Ended Multiplexer
175
Chapter 5 Remote Interface Reference
177
Remote Interface Reference
178
SCPI Command Summary
179
SCPI Command Summary, Starting
179
SCPI Command Summary
181
Voltage Configuration Commands
186
Resistance Configuration Commands
187
Current Configuration Commands
188
Digital Input Commands
192
Digital Output Commands
192
DAC Output Commands
193
Switch Control Commands
193
State Storage Commands
194
Interface Configuration Commands
196
Simplified Programming Overview
199
The Measure? and Configure Commands
205
Setting the Function, Range, and Resolution
212
Temperature Configuration Commands
217
Temperature Configuration Commands
219
Voltage Configuration Commands
221
Resistance Configuration Commands
222
Current Configuration Commands
222
Frequency Configuration Commands
223
Scanning Overview
224
Single-Channel Monitoring Overview
235
Scanning with an External Instrument
237
MX+B Scaling Overview
242
Alarm System Overview
245
Alarm System Overview
247
Digital Input Commands
253
Totalizer Commands
254
Digital Output Commands
256
DAC Output Commands
256
Switch Control Commands
257
State Storage Commands
259
System-Related Commands
262
Interface Configuration Commands
267
RS-232 Interface Configuration
270
Modem Communications
272
The SCPI Status System
273
The Standard Event Register
280
Status System Commands
284
Calibration Commands
290
Service-Related Commands
292
An Introduction to the SCPI Language
294
An Introduction to the SCPI Language
296
Using Device Clear
300
Chapter 6 Error Messages
301
Error Messages
302
Execution Errors
303
Execution Errors
305
Instrument Errors
307
Instrument Errors
309
Self-Test Errors
312
Calibration Errors
313
Plug-In Module Errors
315
Chapter 7 Application Programs
316
Application Programs
317
Example Programs for Excel 7.0
318
Example Programs for C and C
325
Chapter 8 Tutorial
329
System Cabling and Connections
331
System Cabling and Connections
335
Measurement Fundamentals
339
Low-Level Signal Multiplexing
374
Actuators and General-Purpose Switching
380
Matrix Switching
384
RF Signal Multiplexing
386
Multifunction Module
388
Multifunction Module
392
Relay Life and Preventative Maintenance
395
Measurement Rates and System Characteristics
398
Chapter 9 Specifications
399
DC, Resistance, and Temperature Accuracy Specifications
399
DC Measurement and Operating Characteristics
400
AC Measurement and Operating Characteristics
400
AC Accuracy Specifications
401
AC Measurement and Operating Characteristics
402
Measurement Rates and System Characteristics
403
Module Specifications HP 34901A, 34902A, 34908A, 34903A, 34904A
404
Hp 34905A, 34906A
405
Typical AC Performance Graphs
406
Hp 34907A
407
Software Specifications
407
Product and Module Dimensions
408
To Calculate Total Measurement Error
409
Interpreting Internal DMM Specifications
411
Configuring for Highest Accuracy Measurements
414
Index
415
Declaration of Conformity
428
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HP 34970A Specifications
General
Voltage
300V
Connectivity
GPIB, RS-232
Display
LCD
Category
Data Acquisition/Switch Unit
Current
1 A
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