CR10X TABLE OF CONTENTS
iv
MEASUREMENTS
13.
CR10X MEASUREMENTS
13.1
Fast and Slow Measurement Sequence
..............................................................................
13-1
13.2
Single-Ended and Differential Voltage Measurements
........................................................
13-2
13.3
The Effect of Sensor Lead Length on the Signal Settling Time
...........................................
13-3
13.4
Thermocouple Measurements
...........................................................................................
13-12
13.5
Bridge Resistance Measurements
.....................................................................................
13-17
13.6
Resistance Measurements Requiring AC Excitation
..........................................................
13-21
13.7
Calibration Process
............................................................................................................
13-22
INSTALLATION
14.
INSTALLATION AND MAINTENANCE
14.1
Protection from the Environment
..........................................................................................
14-1
14.2
Power Requirements
............................................................................................................
14-1
14.3
Campbell Scientific Power Supplies
.....................................................................................
14-2
14.4
Solar Panels
.........................................................................................................................
14-5
14.5
Direct Battery Connection to the CR10X Wiring Panel
........................................................
14-6
14.6
Vehicle Power Supply Connections
.....................................................................................
14-6
14.7
Grounding
.............................................................................................................................
14-7
14.8
Wiring Panel
.........................................................................................................................
14-8
14.9
Switched 12 Volt
...................................................................................................................
14-8
14.10
Use of Digital I/O Ports for Switching Relays
.......................................................................
14-8
14.11
Maintenance
.......................................................................................................................
14-10
APPENDICES
A.
GLOSSARY
..............................................................................................................................
A-1
B.
CONTROL PORT SERIAL I/O INSTRUCTION 15
B.1
Specifications
.........................................................................................................................
B-1
B.2
Selected Operating Details
.....................................................................................................
B-1
B.3
Instruction 15 and Parameter Descriptions
............................................................................
B-2
B.4
Control Port Configurations and Sensor Wiring
.....................................................................
B-5
B.5
Input Data Filters
....................................................................................................................
B-6
B.6
Program Examples
.................................................................................................................
B-8
B.7
Summary of Barometer Jumper Configurations
...................................................................
B-15
C.
ADDITIONAL TELECOMMUNICATIONS INFORMATION
C.1
Telecommunications Command with Binary Responses
.......................................................
C-1
C.2
Final Storage Format
.............................................................................................................
C-4
C.3
Generation of Signature
.........................................................................................................
C-5
C.4
∗
D Commands to Transfer Program with Computer
..............................................................
C-6
D.
CR10X 37 PIN PORT DESCRIPTION
.............................................................................
D-1
E.
ASCII TABLE
...........................................................................................................................
E-1