B.2 CS240 four-wire configuration programs
CRBasic Example 4: CR300 4-wire configuration for measuring the CS240
'CR300 Series
'Declare Variables and Units
Dim
CS240X
Dim
CS240Rs
Public
CS240T_C
Units
CS240T_C=Deg C
'Define Data Tables
DataTable
(Hourly,True,-1)
DataInterval
(0,60,Min,10)
Sample
(1,CS240T_C,FP2)
EndTable
'Main Program
BeginProg
'Main Scan
Scan
(5,Sec,1,0)
'CS240 (4-wire) Class A RTD Back of PV Module Temperature Sensor
'measurement 'CS240T_C'
BrHalf4W
(CS240X,1,mV2500,mV2500,1,Vx1,1,350,True,True,0,60,1,0)
'Convert ratio to ohms
CS240Rs=CS240X*1000
'Calculate temperature from resistance
PRTCalc
(CS240T_C,1,CS240Rs/1000,1,1,0)
'Call Data Tables and Store Data
CallTable
Hourly
NextScan
EndProg
CS240 and CS240DM PT-1000 Class A, Back-of-Module Temperature Sensors
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