Campbell SAT ARGOS Manual de usuario descargar pdf (Pagina 321)

ZENO

-3200 USER MANUAL

Coastal Environmental Systems (206) 682-6048 Page D-17

 Divide the number of required running intervals by 7 and round it up to the nearest whole number.

 Create as many Process Records as calculated from the previous step following the Process Record

containing the Rain Process.

 Configure each new Process Record to be a Previous Sample Value Process.

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 Set the input data value, Line Item #4, of the first Previous Sample Value Process to the data output

#3, the Sample Interval rain accumulation, of the Rain Process. Set the input value for any successive

Previous Sample Value Processes to the oldest data from the previous Process Record that defines a

Previous Sample Value Process.

 Create as many new Process Records as were done to hold the Previous Sample Value Processes.

 Configure each new Process Record to be an Add Multiple Data Values Process.

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 Set the data input of each Add Multiple Data Value Process to the last 7 outputs of each Previous

Sample Data Process. Only use the first data output from the first Previous Sample Data Process in

one Add Multiple Data Value Process.

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 The running rain accumulation will be obtained by adding the outputs of each Add Multiple Data

Value Process into a single value. You will need to create at least one more Process Record to do

this, and configure it to be an Add Multiple Data Value Process.

The hourly rain rate value, data output #2, is calculated by dividing the Sample Interval rain accumulation

value (the value reported by data output #3) by the time elapsed since the beginning of the Sample

Interval.

The rain indication output, data output #4, is an indication that the rain sensor is currently detecting rain;

i.e., 0 means no current rainfall, 1 means it is currently raining. The Rain Process will continue to report

that rain is falling, even if the data inputted into Line Item #4 is zero for as long as the user specified in

the Rain End Reset Delay, Line Item #8. If no rain is reported to the process for a time period exceeding

the Rain End Reset Delay, the Rain Process will assume that rainfall has ended and will set the rain

indication output to 0. Once rain is reported to the Rain Process and current rain indication is zero, the

process will set the rain indication high and set the rain start time (data output #L1) to the current time.

The rain end time (data output #L2) is set to the current clock value when the Rain Reset Delay Time runs

out.

2.7. Dewpoint Process

Inputs: 4 Temperature in °C

5 Humidity as a Percentage

6 Barometric Pressure in mbar

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Outputs: 1 Average calculated Dewpoint temperature in °C

2 Most recent calculated Dewpoint temperature in °C

3 Virtual Temperature in °C

4 Wet-bulb Temperature in °C

E1 Process Error Code

Assumptions: Metric input and output data

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Refer to Category #1, Process #12.

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Refer to Category #5, Process #11.

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Since you are linking multiple Previous Sample Data Processes together, the oldest value in each Previous

Sample Period Process will be the same as the current (or newest) value in the next Previous Sample Data Process.

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If this input is not specified, the process uses a default value of 1013 mbar for barometric pressure.

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