Campbell-scientific Bowen Ratio Instrumentation Uživatelský manuál stáhnout pdf (Strana 22)

Section 3. Sample CR23X Program

3-2

TABLE 3-1. Sample CR23X Bowen Ratio Program Flow Chart

Table 1

1 Second Execution Interval

Measure Panel Temperature

Measure Lower Thermocouple (Single Ended)

Measure Upper Thermocouple (Differential)

Measure RTD on Cooled Mirror

Subtract Upper TC Temp. from the Lower TC Temp.

Calculate RTD R/Ro

Calculate RTD Temperature

Calculate Vapor Pressure

Yes

Flag 5 Set?

Yes

20 Minute Interval ?

Set Flag 0 (Output)

Yes

Flag 4 Set ?

Set Flag 0 (Output)

Set Flag 5

[process]

Day, Hour:Minute (smpl)

Panel Temperature (smpl)

Lower Temperature (avg)

Temperature Gradient (avg)

Yes

Flag 2 Set ?

Set Flag 9

(Disable Intermediate Processing)

Yes

Flag 1 Set ?

Set Flag 9

(Disable Intermediate Processing)

[process]

Upper Dew Point (avg)

Upper Vapor Pressure (avg)

Reset Flag 9

Yes

Flag 2 Reset ?

Set Flag 9

(Disable Intermediate Processing)

Yes

Flag 1 Set ?

Set Flag 9

(Disable Intermediate Processing)

[process]

Lower Dew Point (avg)

Lower Vapor Pressure (avg)

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 35 36

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