Campbell CR510 Manual do Operador Página 158
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SECTION 13. CR510 MEASUREMENTS
13-14
FIGURE 13.4-2. Excitation and Measurement Sequence for 4 Wire Full Bridge
TABLE 13.4-1. Comparison of Bridge Measurement Instructions
Instr. # Circuit Description
4 DC Half Bridge The delay parameter
allows the user entered
settling time com-
pensate for capacitance
in long lead lengths. No
polarity reversal. One
single-ended measure-
ment. Measured
voltage output.
5 AC Half Bridge Rapid reversal of
excitation polarity for
ion depolarization.
One single-ended
measurement at each
excitation polarity.
Ratiometric output.
6 4 Wire One differential
Full Bridge measurement at each
excitation polarity.
Ratiometric output.
Instr. # Circuit
Description
7 3 Wire Compensates for lead
Half Bridge wire resistance,
assuming resistance is
same in both wires.
Two single-ended
measurements at each
excitation polarity.
Ratiometric output.
8 Differential Makes a differential
Measurement measurement without
with Excitation reversing excitation
polarity. Used for fast
measurements on load
cells, PRTs etc.
Resolution and common
mode rejection worse
than 6 if used with delay
= 0. Measured voltage
output.
9 6 Wire Compensates for lead
Full Bridge wire resistance. Two
or 4 Wire differential measure-
Half Bridge ments at each
excitation polarity.
Ratiometric output.
- CR510 DATALOGGER 1
- OPERATOR'S MANUAL 1
- WARRANTY AND ASSISTANCE 3
- TABLE OF CONTENTS 5
- DATA RETRIEVAL/COMMUNICATION 6
- PROGRAM EXAMPLES 6
- INSTRUCTIONS 7
- INSTALLATION 7
- APPENDICES 8
- FEATURES OF CR510 9
- This is a blank page 10
- SELECTED OPERATING DETAILS 11
- CAUTIONARY NOTES 12
- CR510 DATALOGGER OVERVIEW 13
- OV2. MEMORY AND PROGRAMMING 15
- CONCEPTS 15
- OV4. PROGRAMMING THE CR510 21
- CR510 OVERVIEW 30
- ARRAYS, AND MEMORY POINTERS 45
- 3.1 PARAMETER DATA TYPES 49
- 3.2 REPETITIONS 49
- 3.4 INDEXING INPUT LOCATIONS 49
- 3.5 VOLTAGE RANGE AND 50
- OVERRANGE DETECTION 50
- 3.6 OUTPUT PROCESSING 50
- PROGRAM CONTROL 51
- 3.8 PROGRAM CONTROL LOGICAL 52
- CONSTRUCTIONS 52
- 3.9 INSTRUCTION MEMORY AND 55
- EXECUTION TIME 55
- 3.10 ERROR CODES 59
- 4.1 ON-LINE DATA TRANSFER 61
- INSTRUCTION 96 61
- 4.4 STORAGE MODULE 64
- 5.1 TELECOMMUNICATIONS 67
- COMMANDS 67
- 6.1 PIN DESCRIPTION 71
- 6.2 ENABLING AND ADDRESSING 72
- PERIPHERALS 72
- 6.3 RING INTERRUPTS 73
- 6.6 SYNCHRONOUS DEVICE 74
- COMMUNICATION 74
- 6.7 MODEM/TERMINAL AND 75
- COMPUTER REQUIREMENTS 75
- 7.1 SINGLE ENDED VOLTAGE 79
- 107 TEMPERATURE PROBE 79
- 7.2 DIFFERENTIAL VOLTAGE 79
- MEASUREMENT 79
- 7.4 ANEMOMETER WITH 81
- PHOTOCHOPPER OUTPUT 81
- LONG LEADS 82
- FULL BRIDGE 86
- 7.12 NONLINEAR THERMISTOR IN 90
- HALF BRIDGE 90
- CR510 & AVW1 93
- 12 V or 5 V 94
- 7.14 4 TO 20 MA SENSOR USING 95
- CURS100 TERMINAL INPUT 95
- SYNCHED TO REAL TIME 99
- PORTS (RAIN GAGE) 99
- 8.5 CONVERTING 0-360 WIND 100
- DIRECTION OUTPUT TO 0-540 FOR 100
- STRIP CHART 100
- - SAVING DATA PRIOR TO EVENT 101
- zero yields 110
- SEQUENCE 145
- 13.2 SINGLE-ENDED AND 146
- DIFFERENTIAL VOLTAGE 146
- MEASUREMENTS 146
- LENGTH ON THE SIGNAL SETTLING 147
- 13.4 BRIDGE RESISTANCE 156
- 13.5 RESISTANCE MEASUREMENTS 160
- REQUIRING AC EXCITATION 160
- 13.6 CALIBRATION PROCESS 161
- 14.1 PROTECTION FROM THE 163
- ENVIRONMENT 163
- 14.2 POWER REQUIREMENTS 163
- SUPPLIES 164
- 12V ALKALINE BATTERY PACK 165
- DESI PAK 166
- 14.7 GROUNDING 168
- 14.8 TERMINAL STRIP 169
- FOR SWITCHING RELAYS 169
- 14.10 MAINTENANCE 171
- APPENDIX A. GLOSSARY 173
- B.1 TELECOMMUNICATIONS 177
- COMMAND WITH BINARY 177
- RESPONSES 177
- B.2 FINAL STORAGE FORMAT 179
- APPENDIX C. ASCII TABLE 183
- D.1 INTRODUCTION 185
- D.2 EXAMPLE PHONE CALLBACK 185
- PROGRAM BASED ON A CONDITION 185
- AND IT’S COMPUTER SETUP 186
- APPENDIX E 189
- E.4 REMOTE DATALOGGER 191
- PROGRAMMING 191
- F.1 TERMINOLOGY 193
- F.2 COMMUNICATIONS AND 193
- COMPATIBILITY 193
- F.3 MORE ON MODBUS 194
- AND CR23X MANUALS 199
- AD1 Major Differences 201
- AD3.1 Programming changes 202
- Section 12 205
- TABLE DATA ADDENDUM 206
- OV4. PROGRAMMING THE CR10X 207
- OV5. PROGRAMMING EXAMPLES 209
- 32 converts the 211
- 03:P84 Data Table Instruction 212
- OV6. DATA RETRIEVAL OPTIONS 213
- DATALOGGER 214
- COMPUTER 214
- SECTION 1. FUNCTIONAL MODES 215
- STATUS - ∗B 217
- 1.7 ∗C MODE -- SECURITY 217
- 1.8 ∗D MODE – TRANSFER 217
- PROGRAMS, GENERAL SETTINGS 217
- 1.9 *9 DATA TABLES SIZES 221
- 2.1 FINAL STORAGE AND DATA 223
- 2.2 DATA OUTPUT FORMAT AND 225
- RANGE LIMITS 225
- KEYBOARD/DISPLAY *7 MODE 225
- 8.1 COMPUTATION OF RUNNING 229
- 8.2 RAINFALL INTENSITY 230
- 8.3 USING CONTROL PORTS AND 231
- LOOP TO RUN AM416 MULTIPLEXER 231
- TO COUNT SWITCH CLOSURES 233
- (RAIN GAGE) 233
- 8.5 SDM-A04 ANALOG OUTPUT 234
- MULTIPLEXER TO STRIP CHART 234
- Section 12. Program Control 243
- Instructions 243
- Security 248
- Remote Location/Coil/Register 248
- Remote Location 249
- Local Location 249
- Send Message (P192) 250
- Message Type 251
- Number of Remotes 252
- First Remote Address 252
- Time into Transmit Interval 252
- Transmit Interval 252
- Swath to Receive 253
- Seconds Until Transmit (P194) 254
- Swath to Receive From Master 256
- Swath to Send 256
- First Location to Send 256
- Force Route (P197) 257
- Set Setting (P198) 257
- Result Location 258
- Beacon Intervals 259
- Neighbor Filter 260
- LIST OF TABLES 261
- LIST OF FIGURES 263
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