Campbell Scientific CS11-L Current Transformer - Manual (Page 18)

CS11-L Current Transformer
Below is an example CR1000 program. In the program, a multiplier of 0.2 is
applied to the rms value; see Appendix A.4, Multiplier, for more information.
6.1.1 Example CR1000 Program
'CR1000 Series Datalogger
' CS11-L_with_ACPower_Instruction.CR1
'date: June 12, 2013
'
' Wiring:
' SE1 PT Potential Transformer Signal
' AG PT reference
' SE2 White CS11-L
' AG Black CS11-L
' AG Clear CS11-L
' AG Red CS11-L
PipeLineMode ' must be pipeline mode
Public Batt_volt
Public Amp_Mult
Public Array1(10)
Alias Array1(1) = Real_Power
Alias Array1(2) = Frequency
Alias Array1(3) = Voltage
Alias Array1(4) = Amperage
Alias Array1(5) = Phase_Angle
Alias Array1(6) = V_Harm_Ratio
Alias Array1(7) = I_Harm_Ratio
PreserveVariables
' to store values between power cycles
DataTable (AmpTable,True,-1)
DataInterval (0,1,Min,10)
Totalize (1,Real_Power,IEEE4,False)
Average (1,Frequency,FP2,False)
Average (1,Voltage,FP2,False)
Average (1,Amperage,FP2,False)
Maximum (1,Phase_Angle,FP2,False,False)
Maximum (1,V_Harm_Ratio,FP2,False,False)
Maximum (1,I_Harm_Ratio,FP2,False,False)
EndTable
BeginProg
Amp_mult = 0.2 ' 0.2 multiplier for the CS11-L (200Amps/1000mV=0.2)
Scan (500,mSec,0,0)
Battery (Batt_volt)
ACPower (Array1(),1,60,1,0.345345,120,2,.2,200,1)
CallTable (AmpTable)
NextScan
EndProg
6.2 CR200X-series Dataloggers
The CS11-L is compatible with the CR200X-series dataloggers, with slightly
different wiring. The RED wire is connected to a VX terminal and requires an
ExciteV instruction in the program. The voltage excitation creates a positive
reference output that the CR200X-series can measure.
The recommended programming method for CR200X-series dataloggers
(where the scan interval is limited to once per second) is to place the VoltSE
instruction within a loop. The first CR200X example program has a loop that
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