Campbell Scientific AVW200 AVW200-series Vibrating Wire Interfaces - Page 6

Antennas, Antenna Cables, and Surge, Conversion from Hertz

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Table of Contents 5.4 Send OS 32 5.5 Troubleshoot 33 5.6 Settings Editor 36 5.7 Terminal 36 6. Programming 37 6.1 AVW200 Instruction 37 6.1.1 Pipeline Mode 41 6.1.2 Sequential Mode 41 6.2 SDI-12 Measurements 42 6.2.1 SDI12 Recorder() Instruction 42 6.2.2 Extended SDI-12 Commands 44 6.2.3 Use with Multiplexers 44 7. Example Programs 45 7.1 AVW200() Instruction (no multiplexers 45 7.1.1 Direct RS-232 Connection (two sensors 45 7.1.2 Wireless/One Sensor/Resistance Converted to Temperature ..... 46 7.2 AVW200() Instruction Controlling Two Multiplexers 47 7.3 AVW200( ) Instruction Running in the Pipeline Mode 48 7.4 AVW200( ) Instruction Running in the Sequential Mode 49 7.4.1 AVW200 Controlling Two Multiplexers in Sequential Mode ... 50 7.4.2 Datalogger Controlling Two Multiplexers in Sequential Mode . 50 7.5 SDI-12 Example 51 8. Troubleshooting Communication Problems ..........54 8.1 Unable to Communicate with DevConfig or Terminal Emulator...... 54 8.2 Datalogger to AVW200 Communication 54 8.3 Wireless Communications 54 Appendices A. Conversion from Hertz A-1 A.1 Displacement Example A-1 B. Thermistor Information B-1 B.1 Converting Resistance to Temperature B-1 B.1.1 Resistance Conversion Example - Geokon Sensor B-1 B.2 Accuracy and Resolution B-1 C. Antennas, Antenna Cables, and Surge Protectors for the AVW206, AVW211, and AVW216 C-1 C.1 Antennas C-1 C.2 Antenna Cables C-5 C.3 Surge Protectors C-5 C.3.1 Electrostatic Issues C-5 C.3.2 Antenna Surge Protector Kit C-6 C.4 Part 15 FCC Compliance Warning C-6 ii

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Table of Contents
5.4
Send OS
......................................................................................
32
5.5
Troubleshoot
..............................................................................
33
5.6
Settings Editor
............................................................................
36
5.7
Terminal
.....................................................................................
36
6.
Programming
.............................................................
37
6.1
AVW200 Instruction
.........................................................................
37
6.1.1
Pipeline Mode
............................................................................
41
6.1.2
Sequential Mode
.........................................................................
41
6.2
SDI-12 Measurements
.......................................................................
42
6.2.1
SDI12 Recorder() Instruction
.....................................................
42
6.2.2
Extended SDI-12 Commands
.....................................................
44
6.2.3
Use with Multiplexers
................................................................
44
7.
Example Programs
....................................................
45
7.1
AVW200() Instruction (no multiplexers)
..........................................
45
7.1.1
Direct RS-232 Connection (two sensors)
...................................
45
7.1.2
Wireless/One Sensor/Resistance Converted to Temperature
.....
46
7.2
AVW200() Instruction Controlling Two Multiplexers
......................
47
7.3
AVW200( ) Instruction Running in the Pipeline Mode
.....................
48
7.4
AVW200( ) Instruction Running in the Sequential Mode
.................
49
7.4.1
AVW200 Controlling Two Multiplexers in Sequential Mode ... 50
7.4.2
Datalogger Controlling Two Multiplexers in Sequential Mode . 50
7.5
SDI-12 Example
................................................................................
51
8.
Troubleshooting Communication Problems
..........
54
8.1
Unable to Communicate with DevConfig or Terminal Emulator
......
54
8.2
Datalogger to AVW200 Communication
..........................................
54
8.3
Wireless Communications
.................................................................
54
Appendices
A.
Conversion from Hertz
...........................................
A-1
A.1
Displacement Example
....................................................................
A-1
B.
Thermistor Information
...........................................
B-1
B.1
Converting Resistance to Temperature
............................................
B-1
B.1.1
Resistance Conversion Example – Geokon Sensor
..................
B-1
B.2
Accuracy and Resolution
.................................................................
B-1
C.
Antennas, Antenna Cables, and Surge
Protectors for the AVW206, AVW211, and
AVW216
.................................................................
C-1
C.1
Antennas
..........................................................................................
C-1
C.2
Antenna Cables
................................................................................
C-5
C.3
Surge Protectors
..............................................................................
C-5
C.3.1
Electrostatic Issues
...................................................................
C-5
C.3.2
Antenna Surge Protector Kit
....................................................
C-6
C.4
Part 15 FCC Compliance Warning
..................................................
C-6
ii