Campbell LWS, Руководство по эксплуатации продукта, Страница: 16 / 19

B-1
Appendix B. Example Programs
For these programs, the dry threshold is 274 and the wet threshold is 284. To
determine minutes dry, minutes wet or contaminated, and minutes wet, the
value 0.8333333 is used. This value was calculated based on a 5 s scan interval
(scan interval/60 s). Refer to Section 7.3.2 ,
Minutes Dry, Minutes Wet or
Contaminated, and Minutes Wet
(p. 7)
, for more information.
B.1 Example CR1000X Program
The wiring for the example is shown in TABLE B-1 .
TABLE B-1. CR1000X Example Program Wiring
Color Function CR1000X
Brown or White Excitation VX1
Orange or Red Analog Out SE1
Clear Analog Ground
⏚
CRBasic Example B-1. CR1000X Program for Measuring the LWS
'CR1000X
'Declare Variables and Units
Public BattV
Public PTemp_C
Public LWmV
Public LWMDry
Public LWMCon
Public LWMWet
Units BattV=Volts
Units PTemp_C=Deg C
Units LWmV=mV
Units LWMDry=Minutes
Units LWMCon=Minutes
Units LWMWet=Minutes
'Define Data Tables
DataTable (Hourly,True,-1)
DataInterval (0,60,Min,10)
Sample (1,BattV,FP2)
Sample (1,PTemp_C,FP2)
Sample (1,LWmV,FP2)
Totalize (1,LWMDry,FP2,False)
Totalize (1,LWMCon,FP2,False)
Totalize (1,LWMWet,FP2,False)
EndTable
DataTable (Daily,True,-1)
DataInterval (0,1440,Min,10)
Minimum (1,BattV,FP2,False,False)
EndTable
'Main Program
BeginProg
'Main Scan