Campbell Scientific LLAC4 Four-channel, Low-Level AC Conversion Module - Manual (Page 10)

LLAC4 Four-Channel, Low-Level AC Conversion Module
5. Program Examples
Using the CR1000, let's measure four different wind speed sensors that produce
low-level AC signals. These will include the RM Young 05103, 05106, 05305,
propeller type anemometers, and RM Young 03101 cup anemometer. Program
examples are provided for both the CR1000 and the CR200(X).
Wiring
Sensor LLAC4 CR1000 CR200(X)
05103-L Sig + Red P1
Ref Black
Drain Clear
05106-L Sig + Red P2
Ref Black
Drain Clear
05305-L Sig + Red P3
Ref Black
Drain Clear
03101-L Sig + Black P4
Ref White
Drain Clear
12 V Red 12 V Battery +
G Black G G
D1 White C5 PLL
D2 Green C6 C1/SDI-12
D3 Yellow C7 C2
D4 Blue C8 P_SW
G Clear G G
CR1000 Example Program
'CR1000 Series Datalogger
'LLAC4 Sample Program
'Record 10-minute average wind speed in m/s for:
'1 RM Young 05103-L Wind Monitor Anemometer
'1 RM Young 05106-L Marine Wind Monitor Anemometer
'1 RM Young 05305-L AQ Wind Monitor Anemometer
'1 RM Young 03101-L Wind Sentry Anemometer
'Declare Public Variables
Public RMY05103WS
Public RMY05106WS
Public RMY05305WS
Public RMY03101WS
'Define Data Tables
DataTable (WindSpd,1,-1)
DataInterval
(0,10,min,0)
Average (1,RMY05103WS,FP2,False)
Average (1,RMY05106WS,FP2,False)
Average (1,RMY05305WS,FP2,False)
Average (1,RMY03101WS,FP2,False)
EndTable
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