Campbell HC2S3 Manual Page 19

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Model HC2S3 Temperature and Relative Humidity Probe
CR1000 program using differential measurements
'CR1000 program to measure HC2S3 with differential measurements
Public AirTC
Public RH
DataTable(Temp_RH,True,-1)
DataInterval(0,60,Min,0)
Average(1,AirTC,IEEE4,0)
Sample(1,RH,IEEE4)
EndTable
BeginProg
Scan(1,Sec,1,0)
'HC2S3 Temperature & Relative Humidity Sensor measurements AirTC and RH:
VoltDiff (AirTC,1,mV2500,1,True,0,_60Hz,0.1,-40)
VoltDiff (RH,1,mV2500,2,True,0,_60Hz,0.1,0)
If RH>100 And RH<103 Then RH=100
CallTable(Temp_RH)
NextScan
EndProg
CR10(X) program using differential measurement instructions
;{CR10X}
*Table 1 Program
01: 1.0000 Execution Interval (seconds)
;HC2S3 Temperature & Relative Humidity Sensor measurements AirTC and RH:
1: Volt (Diff) (P2)
1: 1 Reps
2: 25 2500 mV 60 Hz Rejection Range
3: 1 DIFF Channel
4: 3 Loc [ AirTC ]
5: 0.1 Multiplier
6: -40 Offset
2: Volt (Diff) (P2)
1: 1 Reps
2: 25 2500 mV 60 Hz Rejection Range
3: 2 DIFF Channel
4: 4 Loc [ RH ]
5: 0.1 Multiplier
6: 0 Offset
3: If (X<=>F) (P89)
1: 4 X Loc [ RH ]
2: 3 >=
3: 100 F
4: 30 Then Do
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