Campbell Scientific AVW200 AVW200-series Vibrating Wire Interfaces - Page 25

Multiplexers Controlled by Datalogger, 3.3.1 SDI-12 Communication

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AVW200-series 2-Channel Vibrating Wire Spectrum Analyzer Modules For example, the following AVW200() instructions can be used to control the multiplexers: AVW200(Data1(),ComSDC7,200,200,mux1(1,1),1,1,16,450,3000,2,_60HZ,1,0) AVW200(Data2(),ComSDC7,200,200,mux2(1,1),2,1,16,450,3000,2,_60HZ,1,0) Where, RF401 = configured for SDC7 Each multiplexer has 16 sensors connected to it. Begin Frequency = 450 End frequency = 3000 Excitation voltage = 12 V peak to peak (option 2) Read more! A thorough description of the AVW200() instruction and its parameters is provided in Section 6.1. A complete example program that controls two multiplexers is included in Appendix H.1.2. 3.3 Multiplexers Controlled by Datalogger 3.3.1 SDI-12 Communication AVW200 Power Supply Sensors Multiplexer Datalogger NOTES Cable that Comes with Sensor CABLE4CBL Cable CABLE3CBL Cable 19246 Power Cable For this example configuration, SDI-12 is used to measure the vibrating wire sensors. The vibrating wire sensors are attached to multiplexers, which are controlled by the datalogger. (1) When using SDI-12, multiplexers have to be controlled by the datalogger. (2) SDI-12 is the only option available for our CR10X, CR23X, and CR5000 dataloggers. (3) SDI-12 is the only option available for non-Campbell Scientific dataloggers. 17

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AVW200-series 2-Channel Vibrating Wire Spectrum Analyzer Modules
For example, the following AVW200() instructions can be used to control
the multiplexers:
AVW200(Data1(),ComSDC7,200,200,mux1(1,1),1,1,16,450,3000,2,_60HZ,1,0)
AVW200(Data2(),ComSDC7,200,200,mux2(1,1),2,1,16,450,3000,2,_60HZ,1,0)
Where,
RF401 = configured for SDC7
Each multiplexer has 16 sensors connected to it.
Begin Frequency = 450
End frequency = 3000
Excitation voltage = 12 V peak to peak (option 2)
Read more!
A thorough description of the AVW200() instruction and its
parameters is provided in Section 6.1.
A complete example program that
controls two multiplexers is included in Appendix H.1.2.
3.3
Multiplexers Controlled by Datalogger
3.3.1 SDI-12 Communication
Cable that Comes with Sensor
CABLE4CBL Cable
CABLE3CBL Cable
19246 Power Cable
AVW200
Multiplexer
Power
Supply
Datalogger
Sensors
For this example configuration, SDI-12 is used to measure the vibrating wire
sensors.
The vibrating wire sensors are attached to multiplexers, which are
controlled by the datalogger.
(1) When using SDI-12, multiplexers have to be controlled by the
datalogger.
(2) SDI-12 is the only option available for our CR10X, CR23X,
and CR5000 dataloggers.
(3) SDI-12 is the only option available for non-Campbell
Scientific dataloggers.
NOTES
17