Agilent Technologies 34980A User's Guide download pdf (Page 25)

Scanning measurement rates to bus or memory

Direct measurements – direct to I/O Measurement

(includes switch, measure time and I/O time) into memory

Scanning channels

[1]

GPIB USB 2.0 LAN (w/ VXI 11) Into memory

ch/sec ch/sec ch/sec ch/sec

Scanning DCV or 2-wire ohms

34925A 920 860 980 1000

 34923A/24A 588 572 605 625

34921A/22A 109 109 109 109

Scanning ACV

[2]

34925A 318 315 323 318

34923A/24A 260 260 260 260

34921A/22A 88 88 88 88

Scanning temperature

34921A 109 109 109 109

Scanning digital in

34950A 660 592 815 1038

[1] Speeds are for 4 1/2 digits, delay 0, display off, autozero off and scanning is within bank on the

same module; add 10ms for between banks or modules for 2-wire measurements; 4-wire mea-

surements are slower

[2] Add additional time for filter setting on ACV

Data out of memory to LAN, USB, or GPIB

(data transfer rate with 1000 channel blocks)

GPIB USB 2.0 LAN (w/ VXI 11)

[1]

rds/sec rds/sec rds/sec

Readings 2560 2400 3542

readings with timestamp 1304 1230 1826

readingswithallformatoptionsON 980 926 1361

[1] LANlargeblockthroughputrateisincreasedbyapproximately30%usingLANsockets

Single channel measurement rates–DMM reading rates

[1] [2]

Function Resolution Rds/s

DCV 4

digits (0.02 plc) 3000

digits (1 plc) 59

digits (10 plc) 6

2-wire resistance 4

digits (0.02 plc) 2000

digits (1 plc) 58

digits (10 plc) 6

Thermocouple (0.02 plc) 2000

0.1°C (1 plc) 59

RTD/Thermistor 1°C(0.02plc) 1900

0.1°C (1 plc) 58

0.01°C (10 plc) 6

ACV 6

fast (200 Hz) 350

Med (20 Hz) 350

slow (3 Hz) 300

Frequency, period 4

digits(10ms) 70

digits (100 ms) 9

digits (1 s gate) 1

[1] Readingspeedsfor60Hz;autozeroOFF

[2] For fixed function and range, readings to memory,

scaling and alarms off, autozero OFF

34934A Multi-channel close speeds over GPIB (msec)

Isolate or fixed Auto 100 Auto 0

mode mode mode

Close2channels 0.97 1.22 1.31

Close 5 channels 0.43 0.54 0.56

Close 10 channels 0.22 0.28 0.29

Close60channels 0.13 0.17 0.21

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Agilent Technologies 34980A User's Guide Page 25

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