Keysight 34972A - Page 346

346 Keysight 34970A/34972A User’s Guide
diffusion error,, 278
digital channels, external
scanning,
, 123
digital input (34907A)
8-bit vs. 16-bit
operations,
, 158
adding to scan list,
, 62, 158
binary format,
, 62, 158
block diagram,
, 217
card reset,
, 158, 159
decimal format,
, 62, 158
scanning,
, 101
simplified schematic,
, 321
using alarms,
, 155
digital output (34907A)
8-bit vs. 16-bit
operations,
, 163
binary format,
, 63, 163
card reset,
, 163
decimal format,
, 63, 163
driving microwave
switches,, 324
simplified schematic,
, 322
sink current,
, 322
TTL drive capability,
, 322
digits
number of,
, 127
vs. integration time,
, 129
DIN/IEC 751,
, 132
disabling internal DMM,
, 122
display
annunciators,, 14
enable/disable,
, 170
text message,
, 170
dissimilar metals,
, 264
DMM (internal)
block diagram,, 268
enabling/disabling,
, 171,
173
reading relay count,
, 173
DNS Server
, 192
DTR/DSR flow mode
(RS-232),, 188
Dynamic Host Configuration
Protocol
, 191
E
ERROR annunciator,, 14, 168,
223
errors
ac loading,, 291
cabling,
, 264
capacitive coupling,
, 310
clearing,
, 168
common mode noise,
, 279
diffusion error,
, 278
frequency
measurements,
, 304
loading, dc voltage,
, 284
loading, input bias
current,
, 284
low-level ac,
, 265
magnetic fields,
, 264
multiplexing and
switching,, 310
period measurements,
, 304
reading error queue,
, 168,
223
RF multiplexing,
, 320
thermal EMF,
, 264
thermocouple
calculation,, 280
thermocouple reference
junction,, 278
totalizer,
, 326
example programs
C and C++,, 255
Excel 7.0,
, 247
Excel macro example
programs,, 247
Exporting readings to USB
, 183
EXT annunciator,
, 14
Ext Trig connector,
, 15, 16, 109,
121
external DMM
connections,, 121
scanning with,
, 121
external reference (T/C),
, 133
external scanning
connections,, 121
with digital channels,
, 123
external trigger
connector,, 15, 16, 109, 121
scan interval,
, 106
F
factory reset state,, 199
fahrenheit, setting units,
, 132
fast ac filter,
, 139, 141, 142,
288
fast timeout,
, 143
FETCh? command
description,
, 105
filler panel kit (rack
mounting),, 52
filter, ac signal,
, 139, 141, 142,
288
firmware revision
34970A,
, 172
plug-in modules,
, 172
fixed input range (dc
voltage),
, 138
fixed reference
(thermocouple),, 133
flange kit (rack mounting),
, 52
flow mode (RS-232)
DTR/DSR mode,, 188
factory setting,
, 67, 188
Modem mode,
, 189
None (no flow mode),
, 188
RTS/CTS mode,
, 188
selecting,
, 67, 188
XON/XOFF mode,
, 188
form C (SPDT) switching,
, 85,
313
format
alarm queue data,
, 152
scanned readings,
, 114
four-wire multiplexers,
, 82, 309
four-wire ohms,
, 140, 296
four-wiring paring (RTD),
, 135
frequency measurements
low frequency timeout,
, 143
sources of error,
, 304
front panel
annunciators,
, 14
defining scan list,
, 41
layout,
, 11
menu overview,
, 12
front-panel display