Campbell AVW200 series Manual de Instruções descarregar pdf (Página 27)

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

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Campbell AVW200 series Manual de Instruções Página 27