Campbell-scientific RDP500 Remote Data Platform Instrukcja Użytkownika Pobierz pdf (Strona 29)

Appendix A. CRBasic Program for

Version 18

'CR1000 Series Datalogger

'FISCHER & PORTER/BELFORT WEIGHING RAINGAUGE RETROFIT.

'VERSION: RDP500_V18.CR1

'Note: The PRT is not needed to achieve the specification, however it is included in this

' system in an effort to create a sensor-temperature dataset that can be analized by

' any questioning party.

'Change Log:

' 2008-08-08

' Program released for manual

' 2010-04-20

' Changed data record interval from 5 min to 15 min.

' Added rounding of precip to 1/100th of inch

' Expanded information available through keypad display

' Added PreserveVariables program modifier

'------------------------------------------------------------------------------------

'Wiring Setup.

'S shape load cell INTERFACE SSM-AJ-100

'Red + --- V_Ex1

'Black - --- V_G

'Green Sig + --- 1H

'White Sig - --- 1L

'Shield --- V_G

'PRT

'Red --- TIM_G

'ReD --- TIM_H

'TIM

'H --- 7H

'L --- 7L

'G --- V_G

'Black --- V_Ex2

PreserveVariables

'Declare Public Variables

Public PTemp_C 'degrees. Temperature of datalogger wiring panel

Public PTemp_F 'degrees. Temperature of datalogger wiring panel

Public batt_volt 'Volts. external power supply voltage

Public PRT_raw 'millivolts. Raw mV reading from PRT

Public PRT_C 'deg C. PRT temp in Celcius

Public PRT_F 'deg F. PRT temp in Fahrenheit

Public LC_mV 'millivolts. Raw mV reading from the load sell

Public LC_mV_Avg 'millivolts. Averaged raw mV reading from the load cell

Public Lc_mV_Ofst 'millivolts. Load cell mV offset with no load (TARE)

Public LC_mV_Diff 'millivolts. Absolute difference between LC_mV_Avg and LC_mV

Public mVtoGram 'grams/millivolts. Conversion factor

Public LC_gr 'grams. weight applied to load cell

A-1

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