Campbell CR800 Series - Page 23

Table of Contents
23
Calibration Report for Relative Humidity Sensor ................... 218
Calibration Report for Salinity Sensor .................................... 221
Calibration Report for Flow Meter .......................................... 223
Calibration Report for Water Content Sensor ......................... 226
Maximum Measurement Speeds Using VoltSE() ................... 233
Voltage Measurement Instruction Parameters for Dwell
Burst ..................................................................................................... 237
SDI-12 Commands for Transparent Mode .............................. 242
SDI-12 Commands for Programmed (SDIRecorder())
Mode .................................................................................................... 246
SDI-12 Sensor Configuration CRBasic Example —
Results .................................................................................................. 255
Example Power Usage Profile for a Network of SDI-12
Probes................................................................................................... 256
PRT Measurement Circuit Overview ...................................... 260
PT100 Temperature and ideal resistances (RS); α =
0.00385
1
............................................................................................... 261
Callandar-Van Dusen Coefficients for PT100, α = 0.00385 ... 261
Input Ranges (mV) .................................................................. 261
Input Limits (mV) ................................................................... 261
Excitation Ranges .................................................................... 262
BrHalf4W() Four-Wire Half-Bridge Equations ...................... 262
Bridge Resistor Values (mΩ) .................................................. 262
BrHalf3W() Three-Wire Half-Bridge Equations ..................... 266
Bridge Resistor Values (mΩ) .................................................. 266
PRTCalc() PRTType = 1, α = 0.00385
1
.................................. 276
PRTCalc() PRTType = 2, α = 0.00392
1
................................ 277
PRTCalc() PRTType = 3, α = 0.00391
1
.................................. 277
PRTCalc() PRTType = 4, α = 0.003916
1
................................ 277
PRTCalc() PRTType = 5, α = 0.00375
1
.................................. 278
PRTCalc() PRTType = 6, α = 0.003926
1
................................ 278
ASCII / ANSI Equivalents ...................................................... 279
CR800 Serial Ports .................................................................. 281
String Operators ...................................................................... 303
String Concatenation Examples .............................................. 304
String NULL Character Examples .......................................... 306
Analog Measurement Integration ............................................ 316
Ac Noise Rejection on Small Signals
1
.................................... 317
Ac Noise Rejection on Large Signals
1
.................................... 318
CRBasic Measurement Settling Times .................................... 319
First Six Values of Settling Time Data .................................... 322
Range-Code Option C Over-Voltages ..................................... 323
Offset Voltage Compensation Options .................................... 326
Analog Voltage Measurement Accuracy
1
............................... 328
Analog Voltage Measurement Offsets .................................... 328
Analog Voltage Measurement Resolution ............................... 329
Resistive-Bridge Circuits with Voltage Excitation ................. 333
Ratiometric-Resistance Measurement Accuracy ..................... 336
CalGain() Field Descriptions ................................................... 339
CalSeOffset() Field Descriptions ............................................ 340
CalDiffOffset() Field Descriptions .......................................... 340
Calibrate() Instruction Results ................................................. 341
StrainCalc() Instruction Equations .......................................... 343
Analog Voltage Input Ranges and Options ............................. 346