425

Index

display

Excel macro example programs,

321

FORMat:READ:ALARm command,

231

annunciators,

Express Exchange program, 10

FORMat:READ:CHANnel command, 231

enable/disable,

144

EXT annunciator,

FORMat:READ:TIME command, 232, 264

text message,

144

Ext Trig connector, 5, 83, 95

FORMat:READ:UNIT command,

232

DISPlay:TEXT command, 266

external DMM

four-wire multiplexers, 58, 380

DISPlay:TEXT:CLEar command, 266

connections, 95

four-wire ohms, 115, 369

dissimilar metals,

340

scanning with, 95

four-wire pairing (RTD), 110

DMM (internal)

external reference (T/C),

107

FREQ:RANGe:LOWer command,

225

block diagram,

343

external scanning

frequency measurements

field installation kit

connections, 95

low frequency timeout, 118

See Option 001 Installation Note

with digital channels,

sources of error, 377

enabling/disabling,

145

external trigger

connections, 21

reading relay count,

147

connector,

5, 83, 95

front panel

DTR/DSR flow mode (RS-232),

153

scan interval, 80

annunciators,

defining scan list,

layout, 2

E5810A LAN-to-GPIB,

factory reset state,

160

menu overview, 3, 33

front-panel display

echo commands (modem), 274

fahrenheit, setting units,

106

enable/disable,

144

enable register (status), 275

fast ac filter,

114, 116, 361

text message,

144

ERROR annunciator, 4, 142, 304

fast timeout,

118

fuse

error messages, 303-318

FETCh? command

location, 5, 28

errors

description, 79, 204, 236

part number, 27

ac loading, 364

example,

206

replacing, 28

cabling, 339

filler panel kit (rack mounting),

factory setting, 27

capacitive coupling,

381

filter, ac signal, 114, 116, 117, 361

fuseholder assembly,

5, 28

clearing, 142

firmware revision

common mode noise, 353

34970A, 146

crest factors, 407

plug-in modules, 146

diffusion error,

352

fixed input range (dc voltage), 113

gage factor (strain), 374

frequency measurements, 377

fixed reference (thermocouple),

107

gain “M” (Mx+B),

39, 119

loading, dc voltage,

357

fixed reference junction, 221

gate signal (totalizer), 135, 396

loading, input bias current,

358

flange kit (rack mounting), 31

gauge, wire size,

336

low-level ac, 341

floppy disks (BenchLink),

GET (Group Execute Trigger), 82

magnetic fields,

340

flow mode (RS-232)

GP-IB address

measurement error,

414

DTR/DSR mode,

153

address selection,

46, 151

multiplexing and switching,

381

factory setting,

47, 153

cable, 51

period measurements, 377

Modem mode, 154

connector, 5

reading error queue, 142, 304

None (no flow mode), 153

interface selection,

46, 151

RF multiplexing, 391

RTS/CTS mode,

153

setting address, 150

thermal EMF,

340

selecting,

47, 153

factory address setting, 150

thermocouple calculation, 353

XON/XOFF mode,

153

ground loops, 337, 341

thermocouple reference junction, 352

form C (SPDT) switching,

59, 384

grounding, 337

totalizer, 396

format

event register (status),

275

alarm queue data,

127

example programs

scanned readings,

C and C++, 328

Excel 7.0, 321

Index

425 34970A specifications

Agilent Technologies 34970A is a versatile data acquisition and measurement system that has gained popularity in various industries, including research and development, manufacturing, and education. The primary purpose of the 34970A is to offer an efficient solution for data collection, monitoring, and analysis, which can significantly enhance productivity and accuracy in testing applications.

One of the main features of the 34970A is its modular design, allowing users to customize the system according to their specific measurement needs. The mainframe can accommodate up to three plug-in measurement modules, which can include various types of measurements such as analog, digital, temperature, and frequency. This modularity provides flexibility for users to tailor the system to their requirements, making it highly adaptable to different applications.

Another notable characteristic of the Agilent 34970A is its impressive channel configuration. The system can support up to 120 measurement channels when fully configured, enabling extensive data acquisition without the need for multiple devices. This capability is essential for applications requiring simultaneous monitoring of multiple parameters or locations.

The 34970A utilizes advanced signal processing technologies to ensure high-accuracy measurements. The internal 6.5-digit resolution multimeter provides precise readings, while the device also supports various input types, such as thermocouples and RTDs for temperature measurements. The ability to perform mathematical functions, such as summation and averaging, on the acquired data further enhances its usability.

For data storage and management, the Agilent 34970A features built-in memory for storing up to 20,000 readings. Users can also easily transfer data to a PC through the RS-232 interface or GPIB (IEEE 488) for further analysis and reporting. Additionally, it offers the capability to program automatic data logging and scheduling of measurements, which streamlines the testing process and reduces manual intervention.

In terms of user interface, the 34970A is equipped with a large graphical display that provides clear visualization of measurement data and easy navigation through settings and options. The menu-driven interface makes it accessible for users of all skill levels, simplifying the setup and operation of the device.

Overall, the Agilent Technologies 34970A stands out for its modularity, high channel capacity, advanced measurement technologies, and user-friendly interface. As a reliable and efficient data acquisition system, it is well-suited for a wide range of applications, making it an essential tool for engineers and technicians looking to enhance measurement precision and efficiency.

Agilent Technologies 34970A manual 425

Models: 34970A

Index

See Option 001 Installation Note

DTR/DSR mode,

RTS/CTS mode,

XON/XOFF mode,

34970A specifications