Agilent Technologies 34972A Handbücher

Bedienungsanleitungen und Benutzerhandbücher für Netzwerk-Switches Agilent Technologies 34972A.
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Inhaltsverzeichnis

Agilent 34970A/34972A

1

Data Acquisition /

1

Switch Unit

1

Manual Part Number

2

Declaration of Conformity

2

Warranty

2

Technology Licenses

2

Restricted Rights Legend

2

Additional Safety Notices

3

Technical Support

4

Safety Symbols

4

Data Acquisition/Switch Unit

5

The Front Panel at a Glance

6

Display Annunciators

8

   

10

In This Book

15

Contents

17

Quick Start

21

Procedure

25

On-Line Help System

26

To Connect Wiring to a Module

27

To Set the Time and Date

29

To Close a Channel

33

To Adjust the Carrying Handle

36

To Rack Mount the Instrument

37

Front-Panel Overview

39

Front-Panel Menu Reference

41

To Monitor a Single Channel

44

To Set a Scan Interval

45

To Configure Alarm Limits

47

To Read a Digital Input Port

49

To Read the Totalizer Count

51

To Output a DC Voltage

52

GPIB Configuration

53

RS-232 Configuration

54

LAN Configuration

55

USB Configuration

56

To Store the Instrument State

57

System Overview

59

Measurement Software

62

Plug-In Modules

65

Chapter 3 System Overview

66

System Cabling

67

Transducers and Sensors

68

Signal Routing and Switching

70

Channel 1

71

Channel 2

71

Channel 4

71

Channel 3

71

Source 1

72

Source 2

72

Source 3

72

Test 1 Test 2 Test 3

72

Measurement Input

74

Scanning

77

Scan List (1 sweep)

78

Scan-to-Scan interval

78

(0 to 99:59:59 hours)

78

The Multifunction Module

81

Control Output

83

Features and Functions

87

SCPI Language Conventions

89

Power Failure

93

. Select the

94

Scan Interval

96

Ext Trig Connector

99

Scan Count

102

Reading Format

104

Channel Delay

105

Automatic Channel Delays

106

Channel Closed OUT

112

34970A/34972A

112

External DMM

112

Ext Trig INVM Complete OUT

112

Ext Trig IN

112

Measurement Range

115

Measurement Resolution

117

Custom A/D Integration Time

120

Autozero

122

Measurement Units

123

Thermocouple Measurements

124

RTD Measurements

127

Thermistor Measurements

129

DC Input Resistance

130

AC Low Frequency Filter

131

Offset Compensation

132

Low Frequency Timeout

135

M = B =

137

Alarm Limits

139

Viewing Stored Alarm Data

143

Using the Alarm Output Lines

145

Falling Edge Rising Edge

146

Bit 7 Bit 0

148

“X-OR” result

150

Digital Input Operations

151

Totalizer Operations

153

2.5 V Threshold (TTL)

154

0 V Threshold (AC)

154

Digital Output Operations

157

DAC Output Operations

159

System-Related Operations

160

Error Conditions

163

Self-Test

164

Display Control

165

Real-Time System Clock

166

Internal DMM Disable

167

Firmware Revision Query

167

Relay Cycle Count

169

Single-Channel Monitoring

171

SCPI Language Version Query

173

General Capabilities

174

SCPI Commands

177

Folder and File Structure

177

Contents of Data Files

179

Setting up Automatic Logging

181

Exporting Readings

181

Formatting Readings

182

GPIB Address

183

Remote Interface Selection

184

Parity Selection (RS-232)

185

Baud Rate Selection (RS-232)

185

Resetting the LAN

189

Enabling and Disabling DHCP

189

Setting the IP Address

190

Setting the Subnet Mask

190

Setting the Default Gateway

191

Setting the DNS Server

191

Viewing the MAC Address

191

Calibration Overview

192

Calibration Message

195

Calibration Count

196

Factory Reset State

197

Instrument Preset State

198

Module Overview

200

Not Used

202

34902A 16-Channel Multiplexer

204

34903A 20-Channel Actuator

205

34904A 4x8 Matrix Switch

207

34907A Multifunction Module

211

Error Messages

217

Execution Errors

219

Instrument Errors

224

Self-Test Errors

235

Calibration Errors

236

Plug-In Module Errors

239

Chapter 5 Error Messages

240

Application Programs

241

Continued on next page

245

Tutorial

255

Cable Specifications

257

Grounding Techniques

259

Shielding Techniques

260

Tor r oid

261

To Transducers

261

To Plug-In

261

10 M at 50 or 60 Hz

263

Measurement Fundamentals

265

Signal Frequency x T

266

Signal Gain

266

Temperature Measurements

267

Internal DMM

269

Ice Bath

270

Chapter 7 Tutorial

273

Thermocouple Types

273

DC Voltage Measurements

276

AC Voltage Measurements

281

AC DC+ AC

282

* 100 = 1.4%

285

Current Measurements

289

Resistance Measurements

291

292

Strain Gage Measurements

295

HI Source

296

HI Sense

296

LO Sense

296

LO Source

296

Input Error

299

Two-Wire Multiplexers

301

Four-Wire Multiplexers

302

Module Bank 1 Bank 2

305

Snubber Circuits

307

RC Protection Networks

307

Using Varistors

308

Using Attenuators

309

Matrix Switching

310

Combining Matrices

311

RF Signal Multiplexing

312

Insertion Loss (75)

313

Insertion Loss (50)

313

VSWR (50)

313

VSWR (75)

313

Multifunction Module

314

Digital Output

315

Using an External Pull-Up

316

Driving External Switches

316

Totalizer

317

Totalizer Errors

318

Voltage (DAC) Output

319

DAC Errors

320

Relay Life

322

Relay Load

322

Switching Frequency

323

Replacement Strategy

323

Specifications

325

Chapter 8 Specifications

326

AC Accuracy Specifications

328

System Characteristics

330

System Speed

331

Module Specifications

333

Typical AC Performance Graphs

335

Product and Module Dimensions

337

Sensitivity

340

Resolution

341

Accuracy

341

24-Hour Accuracy

342

90-Day and 1-Year Accuracy

342

Temperature Coefficients

342

"half" digit, 117

345

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