Index

M

“M” (Mx+B scaling gain), 119 magnetic field errors, 340 mainframe

firmware revision, 146 installing a module, 20

maintenance

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

matrix switching, combining, 388 MAX annunciator, 4

maximum reading, during scan, 75 Measure key, 23, 24, 35, 36, 78 MEASure? command, 79

default settings, 201 description, 202 example, 205 range parameter, 207 resolution parameter, 207 syntax statements, 207

Measurement Complete signal, 95 measurement error, calculating, 414 measurement range

autorange, 98 command syntax, 215 overload, 98 selecting, 99

measurement resolution “half” digit, 100 command syntax, 216 selecting, 101

vs. integration time, 103, 203

measurement speeds, scanning, 405 measurement tutorial, 333 medium ac filter, 114, 116, 361 medium timeout, 118

MEM annunciator, 4 memory

overflow, 280

reading scanned readings, 90 threshold (status register), 391 viewing alarm data, 126 viewing scanned data, 24

MEM:NSTates? command, 263 MEM:STATe:DELete command, 262 MEM:STATe:NAME command, 262

MEM:STATe:RECall:AUTO command, 263 MEM:STATe:VALid? command, 263 menus

front panel, 3, 33 summary, 35

message available, 279 message

calibration, 158 front-panel display, 144 errors, 303-318

Microsoft® Visual C++, 328 microwave switches, driving, 394 MIN annunciator, 4

minimum reading, during scan, 75 modem

auto answer, 274 connection to, 274 echo commands, 274

flow control mode (RS-232), 154 result codes, 274

module description 34901A, 164 34902A, 166 34903A, 168 34904A, 170 34905A, 172 34906A, 172 34907A, 174 34908A, 176 module information

connecting wiring, 20 default settings, 162 dimensions, 413 firmware revision, 146 installing in mainframe, 20 reading relay count, 147 specifications, 409

strain relief, 20 MON annunciator, 4 Mon key, 37, 94 Monitor function

definition, 93

scan on alarm, 84, 94 while scanning, 75 with alarms, 93 with Mx+B scaling, 93

multiplexer types, 378

multiplexers errors, 381 four-wire, 58, 380

one-wire (single-ended), 58, 378 two-wire, 58, 378

VHF, 58 Mx+B key, 35, 39 Mx+B scaling

custom label, 39, 120 default gain (“M”), 121 default offset (“B”), 121 equation used, 119 interaction with alarms, 119 null stored as offset, 119 setting gain (“M”), 39, 121 setting offset (“B”), 39, 121 strain measurements, 375 valid gain (“M”) values, 120 valid offset (“B”) values, 120 while scanning, 75, 119

N

name, stored states, 48

noise caused by ground loops, 341 noise rejection, normal mode, 103 nominal impedance, cabling, 335 nominal resistance (RTD)

default, 110, 222 values, 110, 222

normal mode rejection, 103, 344, 405 NPLC, 103, 344, 405

command syntax, 218 vs. channel delays, 89

null, stored as offset (Mx+B), 119 number of bits

vs. integration time, 103, 203 number of digits, 100, 416

vs. integration time, 103, 203 numeric parameters, 300

Index

427

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Agilent Technologies 34970A manual 427
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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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