Campbell DC112 Manuel de l'opérateur Page 170
- Page / 221
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
SECTION 14. INSTALLATION AND MAINTENANCE
14-2
14.2 POWER REQUIREMENTS
The 21X operates at a nominal 12V DC. Below
9.6 or above 16 volts the 21X does not operate
properly.
The 21X is diode protected against accidental
reversal of the positive and ground leads from
the battery. Input voltages in excess of 18V
may damage the 21X and/or power supply. A
transzorb provides transient protection by
limiting voltage at approximately 20V.
System operating time for the batteries can be
determined by dividing the battery capacity
(amp-hours) by the average system current
drain. The 21X draws 1.0 mA in the quiescent
state, 25 mA while processing, and 60 mA
during an analog measurement; the length of
operating time for each datalogger instruction is
listed in Section 3. Typical current requirements
for common 21X peripherals are given in Table
14.2-1.
FIGURE 14.3-1. 21X Battery Pack and Panel
- 21X MICROLOGGER 1
- OPERATOR’S MANUAL 1
- WARRANTY AND ASSISTANCE 3
- 21X OPERATOR'S MANUAL 5
- TABLE OF CONTENTS 5
- OVERVIEW 5
- PROGRAMMING 6
- DATA RETRIEVAL/COMMUNICATION 6
- PROGRAMMING EXAMPLES 7
- INSTRUCTIONS 7
- INSTALLATION 8
- APPENDICES 8
- SELECTED OPERATING DETAILS 9
- This is a blank page 10
- CAUTIONARY NOTES 11
- 21X MICROLOGGER OVERVIEW 13
- CONCEPTS 15
- OV2. MEMORY AND PROGRAMMING 15
- OV3. PROGRAMMING THE 21X 18
- OV4. PROGRAMMING EXAMPLES 20
- OV5. DATA RETRIEVAL OPTIONS 27
- OV6. SPECIFICATIONS 30
- SECTION 1. FUNCTIONAL MODES 31
- CLOCK - *5 MODE 32
- MEMORY OR FLAGS - *6 MODE 32
- 1.5 MEMORY ALLOCATION - *A 34
- STATUS - *B 36
- 1.7 *C MODE -- SECURITY 36
- 1.8 *D MODE -- SAVE OR LOAD 37
- ARRAYS, AND MEMORY POINTERS 41
- 2.2 DATA OUTPUT FORMAT AND 42
- RANGE LIMITS 42
- KEYBOARD/DISPLAY - *7 MODE 43
- 3.1 PARAMETER DATA TYPES 45
- 3.2 REPETITIONS 45
- 3.4 INDEXING INPUT LOCATIONS 45
- 3.5 VOLTAGE RANGE AND 46
- OVERRANGE DETECTION 46
- 3.6 OUTPUT PROCESSING 46
- PROGRAM CONTROL 47
- 3.8 PROGRAM CONTROL LOGICAL 48
- CONSTRUCTIONS 48
- 3.9 INSTRUCTION MEMORY AND 50
- EXECUTION TIME 50
- 3.10 ERROR CODES 53
- 4.1 ON-LINE DATA TRANSFER 55
- INSTRUCTION 96, *4 MODE 55
- 4.2 MANUALLY INITIATED DATA 56
- OUTPUT - *8 AND *9 MODES 56
- 4.3 CASSETTE TAPE OPTION 58
- 4.5 PRINTER OUTPUT FORMATS 61
- 5.1 TELECOMMUNICATIONS 63
- COMMANDS 63
- 6.1 PIN DESCRIPTION 67
- SILICON PYRANOMETER 73
- A COMMON EXTERNAL POWER 73
- USING 21X REFERENCE 74
- USING AN EXTERNAL REFERENCE 74
- JUNCTION 74
- 7.5 107 TEMPERATURE PROBE 75
- WITH LONG LEADS 76
- 7.7 ANEMOMETER WITH 76
- PHOTOCHOPPER OUTPUT 76
- 7.12 PRESSURE TRANSDUCER - 4 80
- WIRE FULL BRIDGE 80
- 7.13 LYSIMETER - 6 WIRE FULL 81
- 7.15 NONLINEAR THERMISTOR IN 83
- HALF BRIDGE (CAMPBELL 83
- SCIENTIFIC MODEL 101) 83
- PROBE WITH 60 HZ REJECTION 84
- 8.1 COMPUTATION OF RUNNING 87
- 8.2 RAINFALL INTENSITY 88
- 8.3 USING CONTROL PORTS AND 89
- LOOP TO RUN AM416 MULTIPLEXER 89
- SYNCHED TO REAL TIME 91
- 8.5 SDM-A04 ANALOG OUTPUT 91
- MULTIPLEXER TO STRIP CHART 91
- 8.6 CONVERTING 0-360 WIND 93
- DIRECTION OUTPUT TO 0-540 FOR 93
- STRIP CHART 93
- 8.7 COVARIANCE CORRELATION 94
- PROGRAMMING EXAMPLE 94
- 8.8 FAST FOURIER TRANSFORM 97
- EXAMPLES 97
- are not 113
- Parameters 6 117
- SECTION 13. 21X MEASUREMENTS 149
- LENGTH ON THE SIGNAL SETTLING 151
- Error (degrees) = 153
- 13.4 THERMOCOUPLE 158
- MEASUREMENTS 158
- 13.5 BRIDGE RESISTANCE 163
- 13.6 RESISTANCE MEASUREMENTS 167
- REQUIRING AC EXCITATION 167
- 14.1 PROTECTION FROM THE 169
- ENVIRONMENT 169
- 14.2 POWER REQUIREMENTS 170
- 14.3 21X POWER SUPPLIES 171
- 14.4 SOLAR PANELS 172
- TO THE 21X 172
- 14.6 VEHICLE POWER SUPPLY 172
- CONNECTIONS 172
- 14.7 USE OF DIGITAL CONTROL 173
- PORTS FOR SWITCHING RELAYS 173
- 14.8 GROUNDING 173
- 14.9 MAINTENANCE 174
- 14.10 CALIBRATION PROCEDURES 174
- APPENDIX A. GLOSSARY 179
- C.1 TELECOMMUNICATIONS 185
- COMMAND WITH BINARY 185
- RESPONSES 185
- C.2 FINAL STORAGE FORMAT 187
- C.3 GENERATION OF SIGNATURE 189
- APPENDIX D. ASCII TABLE 191
- E.1 DISASSEMBLY OF 21X 193
- E.2 INSTALLING NEW RAM CHIPS 193
- E.3 CHANGING PROM CHIPS 194
- 15 SERIAL INPUT 197
- THE AIR-DB-1A BAROMETER 198
- *D TAPE UPLOAD AND DOWNLOAD 203
- LIST OF TABLES 205
- LIST OF FIGURES 209
- 13. 21X MEASUREMENTS 210
- 21X INDEX 211
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