Hello all,
I'm very new to these sensors so pardon me if I say something wrong.
I'm tasked with running a callibration for the evaporation pan for our weather station. I was instructed to run several iterations of the callibration steps on the instruction manual. This is for the 255-100 Novalynx Analog Output Evaporation Gage. The weather station records the pan's data on an hourly basis, and since we are somewhat pressed for time, it was suggested that we change the intervals using the display keypad. We are using a CR3000. Now, in researching this I came to the conclusion that what was suggested is not possible through the keypad but would have to be changed in the program itself.
Is it necessary for the datalogger to take measurements every hour, and is it wise to shorten the time for the pan to collect data? Also, is this a setting that can be changed through the keypad? I'm not sure if there are any steps missing in our process. I thank and welcome any suggestions, or corrections.
Without seeing your program, I can't tell what needs to be changed in your program.There must be a time-based instruction that needs an interval shortened.
It is common practice to record evaporation pan data hourly. That ensures enough evaporation to have a visible change. Your program could be set up to update values in the Public table more frequently, and only save hourly.
I believe this is the piece of code that is relevant to the e-pan.
'255-100 Evaporation Gauge Variables
Public PanLevel : Units PanLevel = Inches
Dim Leveltemp(5)
Const PanMultiplier=9.6162 'Unique
Const PanOffset=2.1372 'Unique
DataTable(Evap_Gauge,1,-1)
DataInterval (0,60,min,10)
Sample (1,PanLevel,FP2)
EndTable
There's some code in between these two sections that sets variables, tables, samples, and units for other sensors. My guess was change line two from the second section to DataInterval (0,10,min,10) but I can't be sure.
You should be watching your PanLevel value in the Public table while connected to the station. The Evap_Gauge table is your saved records, and shouldn't need to be changed.
Thank you so much for your help