Campbell-scientific CR1000 Measurement and Control System Manual de usuario descargar pdf (Pagina 20)

Table of Contents

20

Figure 49: Quarter-bridge strain-gage schematic with RC-resistor shunt... 163

Figure 50: Strain-gage shunt c

alibration started.......................................... 165

Figure 51: Strain-gage shunt c

alibration finished........................................ 165

Figure 52: Starting ze

ro procedure.............................................................. 166

Figure 53: Zero proce

dure finished............................................................. 166

Figure 54: Preconfigured HTML Home Page............................................. 168

Figure 55: Home page created using We

bPageBegin() instruction............. 169

Figure 56: Customized numeric-monitor web page .................................... 169

Figure 57: Entering SDI

-12 transparent mode ............................................ 173

Figure 58: Mean wind-

vector graph............................................................ 191

Figure 59: Standard Deviation of

Direction ................................................ 192

Figure 60: Custom menu example — home screen..................................... 194

Figure 61: Custom menu example — View-Data window ......................... 194

Figure 62: Custom menu example — Make-

Notes sub menu..................... 194

Figure 63: Custom menu example — Prede

fined-notes pick list................ 195

Figure 64: Custom menu example — Free-Entry notes window ................ 195

Figure 65: Custom menu example — Accept / Clear notes window........... 195

Figure 66: Custom menu example — Control sub menu ............................ 195

Figure 67: Custom menu example — control-LED pick list....................... 196

Figure 68: Custom menu example — contr

ol-LED Boolean pick list ........ 196

Figure 69: HyperTerminal New Connection

description ............................ 212

Figure 70: HyperTerminal Connect

-To settings.......................................... 212

Figure 71: HyperTerminal CO

M-Port Settings Tab.................................... 213

Figure 72: HyperTerm

inal ASCII setup...................................................... 213

Figure 73: HyperTerminal send text

-file example ...................................... 214

Figure 74: HyperTerminal text-capture file exam

ple.................................. 214

Figure 75: Data from TrigVar program....................................................... 223

Figure 76: Alarms toggled in

bit-shift example .......................................... 228

Figure 77: Bool8 data from bit-shift e

xample (numeric monitor)............... 228

Figure 78: Bool8 data from bit-shift e

xample (PC data file)....................... 229

Figure 79: PT100 in four-

wire half-bridge.................................................. 259

Figure 80: PT100 in three

-wire half-bridge................................................. 261

Figure 81: PT100 in f

our-wire full-bridge................................................... 263

Figure 82: Running-a

verage equation ......................................................... 263

Figure 83: Running-avera

ge frequency response........................................ 265

Figure 84: Running-avera

ge signal attenuation........................................... 266

Figure 85: PGI

amplifier ............................................................................. 275

Figure 86: PGIA with input si

gnal decomposition...................................... 275

Figure 87: Voltage measurement accuracy

(0° to 40°C)............................. 279

Figure 88: Ac power line noise re

jection techniques .................................. 285

Figure 89: Input voltage rise and

transient decay........................................ 286

Figure 90: Settling time for pressure

transducer ......................................... 289

Figure 91: Deriving ∆V

1............................................................................. 299

Figure 92: Panel-temperature

error summary.............................................. 303

Figure 93: Panel-temperature gradients (low tem

perature to high)............. 304

Figure 94: Panel-temperature gradients

(high temperature to low)............. 304

Figure 95: Input er

ror calculation................................................................ 307

Figure 96: Diagram of a the

rmocouple junction box .................................. 312

Figure 97: Pulse-sensor

output signal types................................................ 313

Figure 98: Switch-clos

ure pulse sensor....................................................... 313

Figure 99: Pulse input c

hannels................................................................... 314

Figure 100: Connecting switch closures t

o digital I/O................................ 317

Figure 101: Amplitude reduction of pulse-count waveform (before and

after 1-µs

time constant filter).............................................................. 321

Figure 102: Input conditioning circ

uit for period averaging ....................... 323

Figure 103: Circuit to limit cont

rol port input to 5 Vdc .............................. 324

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 587 588

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Campbell-scientific CR1000 Measurement and Control System Manual de usuario Pagina 20

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