Campbell HFP01SC Manual do Utilizador descarregar pdf (Página 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

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 32

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Campbell HFP01SC Manual do Utilizador Página 26

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