Campbell Scientific HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Manual (Page 26)

Model HFP01SC Self-Calibrating Soil Heat Flux Plate
*Table 3 Subroutines
;Calibration routine.
;
1: Beginning of Subroutine (P85)
1: 8
Subroutine 8
;Perform in-situ calibration.
;
2: If time is (P92)
1: 1
Minutes (Seconds --) into a
2: 180 Interval (same units as above)
3: 30 Then Do
3: Beginning of Loop (P87)
1: 0
Delay
2: 6 Loop Count
4: Z=X (P31)
1: 7 --
X Loc [ shf_mV_1 ]
2: 19 -- Z Loc [ mV_0_1 ]
5: End (P95)
;Begin heating for calibration.
;
6: Do (P86)
1: 48
Set Port 8 High
;Used to filter data during and after calibration.
;
7: Do (P86)
1: 18
Set Flag 8 High
8: End (P95)
;End site calibration three minutes after calibration started.
;
9: If time is (P92)
1: 4
Minutes (Seconds --) into a
2: 180 Interval (same units as above)
3: 30 Then Do
;Measure voltage across current shunt resistor during calibration.
;This measurement is used to compute power.
;
10: Volt (SE) (P1)
1: 6
Reps
2: 25 2500 mV 60 Hz Rejection Range
3: SE Channel
4: 37 Loc [ V_Rf_1 ]
5: .001 Mult
6: 0 Offset
11: Beginning of Loop (P87)
1: 0
Delay
2: 6 Loop Count
12: Z=X (P31)
1: 7 --
X Loc [ shf_mV_1 ]
2: 25 -- Z Loc [ mV_180_1 ]
13: End (P95)
;Turn off the soil heat flux plate heaters.
;
14: Do (P86)
1: 58
Set Port 8 Low
20