LIST OF FIGURES

PAGE

8.PROCESSING AND PROGRAM CONTROL EXAMPLES

8.3-1

AM416 Wiring Diagram for Thermocouple and Soil Moisture Block Measurements ............

8-4

8.5-1

Connections for Rain Gage....................................................................................................

8-6

9.INPUT/OUTPUT INSTRUCTIONS

9-1 Conditioning for Long Duration Voltage Pulses..................................................................... 9-2

13. CR10 MEASUREMENTS

13.1-1 50 and 60 Hz Noise Rejection .............................................................................................

13-1

13.2-1 Timing of Single-Ended Measurement ................................................................................

13-2

13.2-2 Differential Voltage Measurement Sequence ......................................................................

13-2

13.3-1 Input Voltage Rise and Transient Decay .............................................................................

13-4

13.3-2 Typical Resistive Half Bridge ...............................................................................................

13-5

13.3-3 Source Resistance Model for Half Bridge Connected to the CR10.....................................

13-5

13.3-4 Wire Manufacturers Capacitance Specifications, Cw..........................................................

13-6

13.3-5 Model 024A Wind Direction Sensor.....................................................................................

13-6

13.3-6 Resistive Half Bridge Connected to Single-Ended CR10 Input...........................................

13-7

13.3-7 Half Bridge Configuration for YSI #44032 Thermistor Connected to CR10 ......................

13-11

13.3-8 Measuring Input Settling Error with the CR10 ...................................................................

13-12

13.3-9 Incorrect Lead Wire Extension on Model 107 Temperature Sensor .................................

13-12

13.4-1

Thermistor Polynomial Error ..............................................................................................

13-14

13.4-2 Diagram of Junction Box....................................................................................................

13-16

13.5-1 Circuits Used with Instructions 4-9 ....................................................................................

13-18

13.5-2

Excitation and Measurement Sequence for 4 Wire Full Bridge.........................................

13-19

13.6-1

AC Excitation and Measurement Sequence for AC Half Bridge........................................

13-21

13.6-2

Model of Resistive Sensor with Ground Loop ...................................................................

13-21

14. INSTALLATION AND MAINTENANCE

14.3-1

PS12 12 Volt Power Supply and Charging Regulator .........................................................

14-3

14.6-1

 

Connecting to Vehicle Power Supply...................................................................................

14-5

14.7-1

 

Wiring Panel Grounding Diagram and Excitation Control....................................................

14-6

14.10-1

Relay Driver Circuit with Relay ............................................................................................

14-8

14.10-2

Power Switching without Relay............................................................................................

14-8

APPENDIX G. CHANGING RAM OR PROM CHIPS

G-1

Disassembling CR10 .............................................................................................................

G-2

G-2

Jumper Settings for Different RAM Configurations................................................................

G-2

G-3

Jumper Settings and Locations .............................................................................................

G-3

LF-2