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Campbell CR1000 User Manual

Campbell CR1000
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Table of Contents
Figure 61. Zero Procedure Start .................................................................. 227
Figure 62. Zero Procedure Finish ................................................................ 227
Figure 63. PT100 in Four-Wire Half-Bridge ............................................... 240
Figure 64. PT100 in Three-Wire Half-Bridge ............................................. 242
Figure 65. PT100 in Four-Wire Full-Bridge ............................................... 244
Figure 66. HyperTerminal New Connection Description............................ 256
Figure 67. HyperTerminal Connect-To Settings ......................................... 257
Figure 68. HyperTerminal COM-Port Settings Tab .................................... 257
Figure 69. HyperTerminal ASCII Setup ..................................................... 258
Figure 70. HyperTerminal Send Text-File Example ................................... 258
Figure 71. HyperTerminal Text-Capture File Example .............................. 259
Figure 72. Entering SDI-12 Transparent Mode ........................................... 268
Figure 73. Preconfigured HTML Home Page ............................................. 291
Figure 74. Home Page Created Using WebPageBegin() Instruction ........... 292
Figure 75. Customized Numeric-Monitor Web Page .................................. 293
Figure 76. Input Sample Vectors ................................................................. 298
Figure 77. Mean Wind-Vector Graph ......................................................... 299
Figure 78. Standard Deviation of Direction ................................................ 300
Figure 79. Simplified voltage measurement sequence ................................ 306
Figure 80. Programmable Gain Input Amplifier (PGIA) ............................ 306
Figure 81. PGIA with Input-Signal Decomposition .................................... 311
Figure 82. Example voltage measurement accuracy band, including the
effects of percent of reading and offset, for a differential
measurement with input reversal at a temperature between 0 to
40 °C. ................................................................................................... 314
Figure 83. Ac-Power Noise-Rejection Techniques ..................................... 316
Figure 84. Input-voltage rise and transient decay ........................................ 318
Figure 85. Settling Time for Pressure Transducer ....................................... 321
Figure 86. Panel-Temperature Error Summary ........................................... 329
Figure 87. Panel-Temperature Gradients (low temperature to high) ........... 329
Figure 88. Panel-Temperature Gradients (high temperature to low) ........... 330
Figure 89. Input Error Calculation .............................................................. 332
Figure 90. Diagram of a Thermocouple Junction Box ................................ 337
Figure 91. Pulse-Sensor Output-Signal Types ............................................ 350
Figure 92. Switch-Closure Pulse Sensor ..................................................... 350
Figure 93. Terminals Configurable for Pulse Input ..................................... 351
Figure 94. Amplitude reduction of pulse-count waveform (before and
after 1 µs time-constant filter) .............................................................. 360
Figure 95. Input Conditioning Circuit for Period Averaging ...................... 361
Figure 96. Vibrating-Wire Sensor ............................................................... 362
Figure 97. Circuit to Limit C Terminal Input to 5 Vdc ............................... 363
Figure 98. Current-Limiting Resistor in a Rain Gage Circuit ..................... 364
Figure 99. Current sourcing from C terminals configured for control ........ 369
Figure 100. Relay Driver Circuit with Relay .............................................. 370
Figure 101. Power Switching without Relay ............................................... 370
Figure 102. PakBus Network Addressing ................................................... 394
Figure 103. Flat Map ................................................................................... 399
Figure 104. Tree Map .................................................................................. 399
Figure 105. Configuration and Wiring of PakBus LAN ............................. 400
Figure 106. DevConfig Deployment Tab .................................................... 401
Figure 107. DevConfig Deployment | ComPorts Settings Tab ................... 402
Figure 108. DevConfig Deployment | Advanced Tab ................................. 402
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Table of Contents

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Campbell CR1000 Specifications

General IconGeneral
Power Requirements9.6 to 16 VDC
Data Logger Operating SystemCRBasic
Memory4 MB
Analog Inputs16 single-ended or 8 differential
Analog Input Resolution13 bits
Analog Input Range+/-2.5V
Digital I/O8
Pulse Counters2
Communication PortsRS-232
Operating Temperature-25°C to +50°C
Pulse Channels4

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