Campbell AVW200 series, Instruction Manual

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AVW200-series 2-Channel Vibrating Wire Spectrum Analyzer Modules
2. Attach the vibrating wire sensor(s) to the AVW206 as shown in Figure
4.1-1.
3. Connect an antenna (or antenna cable with Yagi or omnidirectional
antenna attached) to the Antenna Connector on the side of the AVW206.
Read more! Description of our antenna options is provided in Appendix C.
4. Use the power cable to connect the 12V and G terminals on the AVW206
to the 12V and G terminals on the PS100 or another power supply.
At the datalogger/RF401 site, do the following steps:
1. Configure the RF401 radio so that its parameters match the AVW206.
The protocol setting for the RF401 must be PB Aware or PB
Node. NOTE
2. Attach an antenna (or antenna cable with Yagi or omnidirectional antenna
attached) to the Antenna Connector on the RF401.
3. Use the SC12 serial cable to attach the datalogger’s CS I/O port to the
RF401’s CS I/O port. The datalogger’s CS I/O port applies power to the
RF401.
Read more! More information about using spread spectrum radios is
provided in the RF401/RF411/RF416 Spread Spectrum Data
Radio/Modem manual.
4. Create a CRBasic program that includes an AVW200() instruction for each
of the sensors.
Check the manufacturer’s specification for the sensors frequency
and excitation range before picking the begin/end frequencies
and excitation voltage.
NOTE
For example, the following AVW200() instructions can be used to
measure two sensors:
AVW200(Result,ComSDC7,200,200,Dst(1,1),1,1,1,1000,3500,2,_60HZ,1,0)
AVW200(Result,ComSDC7,200,200,Dst(2,1),2,1,1,1000,3500,2,_60HZ,1,0)
Where,
RF401 = configured for SDC7
Begin Frequency = 1000
End frequency = 3500
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
measures one vibrating wire sensor (no multiplexer) is included in Section
7.1.2.
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