Index

Index

connector pinout alarm output, 128 RS-232, 273

connector location Alarm output, 5, 128 Channel Advance, 5 Channel Closed, 5 Ext Trig, 5, 83 GPIB, 5

RS-232, 5 contact

debounce (totalizer), 396 protection, 385 resistance, 399

continuous scan count, 86 conversion accuracy

RTD, 345 thermistor, 345 thermocouple, 345

copying, channel configuration, 25 correlated noise, 341, 365

count (scan) continuous, 38, 86 default value, 38, 86 settings, 38, 86

count calibration, 159

clearing relay cycles, 148 reading relay cycles, 147, 399

count-down time, 81 counter

adding to scan list, 44 manually reset, 44 reading count, 44 reset mode, 44

crest factor defined, 362 errors, 407

crosspoint switching, 59 crosstalk, 411 CURR:AC:BANDwidth command, 224 current limitation (DAC), 139, 397

current measurements

ac low frequency filter, 116, 361 ac settling time, 116, 361 burden voltage, 368 connections, 21

low frequency filter, 116, 361 measurement ranges, 21, 116 valid channels, 116

custom label (Mx+B) displaying “ ° ” character, 120 valid characters, 120

cycles

clearing relay count, 148 reading relay count, 147, 399

D

DAC output (34907A) current limitations, 139, 397 differential errors, 398 integral errors, 398 simplified schematic, 397 writing to, 45

data acquisition overview, 50 data bits (RS-232)

factory setting, 152 selecting, 152

data frame format (RS-232), 272 DATA:LAST? command, 92, 234 DATA:POINts? command, 92, 235 DATA:POINts:EVENt:THR command, 391 DATA:REMove command, 235 DATA:REMove? command, 92

date (calendar) factory setting, 145 setting, 22, 145

dc current connections, 21 measurement ranges, 21

dc voltage

bias current, 358 common mode noise, 354 connections, 21 injected current, 356 input resistance, 113, 357 loading errors, 357 measurement ranges, 21, 113 signal conditioning, 354

decimal format (digital input), 42, 133 declaration of conformity, inside rear cover default delays (channel delays), 89 delay (channel delay), 88

device clear, 302 DIAG:DMM:CYCL:CLEar command, 294 DIAG:DMM:CYCL? command, 294 DIAG:PEEK:SLOT:DATA? command, 265 DIAG:POKE:SLOT:DATA command, 265 DIAG:RELay:CYCL:CLEar command, 294 DIAG:RELay:CYCL? command, 294 dielectric withstand voltage, 335 differential error (DAC), 398 diffusion error, 352

digital channels, external scanning, 97 digital input (34907A)

8-bit vs. 16-bit operations, 133 adding to scan list, 42, 133 binary format, 42, 133

block diagram, 174 card reset, 133, 134 decimal format, 42, 133 scanning, 76 simplified schematic, 392 using alarms, 130

digital output (34907A)

8-bit vs. 16-bit operations, 138 binary format, 43, 138

card reset, 138 decimal format, 43, 138

driving microwave switches, 394 simplified schematic, 393

sink current, 393

TTL drive capability, 393 DIG:DATA:BYTE? command, 255 DIG:DATA:WORD? command, 255 digits

number of, 100

vs. integration time, 103, 203 dimensions

34970A, 413 plug-in modules, 413

DIN/IEC 751, 106 disabling internal DMM, 96 discrete parameters, 300 DISPlay command, 266

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Agilent Technologies 34970A manual 424
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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.
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