I meant which files do you have to edit after you make the change? I thought someone said that editing the gain would change the rainfall values stored somewhere??? Which files contain the rainfall data that has to be edited??
If he changes his gain, mid year, it will mess up his total rain number.
Thus do it like this.
1. Write-down your rain amount for the year so far, and the month so far.
2. Enter your new
gain value.
3. Observe what VWS "thinks" is now your new rainfall for the year value.
4. Your Offset correction will be the Actual rain number (1) minus the number in (3) above.
5. Go to your calibration settings. If your rain "offset" is 0.00 then enter the number from 4.
6. If your rain "offset" is
NOT 0.00 then take what the current number and add 4 to it. What you are wanting to do is basically get VWS rainfall total number back to where it was before you changed the gain.
7. Give things a minute to settle then observe your rainfall for the month amount. If this is incorrect, then go and adjust the month and day value in the "rainfall montly/yearly" settings menu to reflect what they should be.
8. After this process is complete. Shutdown VWS, and restart it. Don't be alarmed if VWS's graphs/gauges for rain seem goofy. These will clear up after the information scrolls off of the appropriate display. The
important thing here is again that your yearly rain and monthly rain match what they were from before, and you have your new gain factor entered in as well.
Another word of advice for the end of the year.
At
11.58PM on Dec 31 shut down VWS. Restart VWS at
12:02am on Jan 1st. Wait 5 minutes, then Shutdown VWS again. On your OS WMR968 reset/clear the memory for your rainfall total. Restart VWS, go to the calibration settings and change your offset to "0.00". Allow VWS to settle, shutdown one more time and restart it. ---- This will effectively start your rain totals over for the new year without destroying rainfall total in the data files from the old year. Plus if you need to ever adjust the values for rain gauge maintenance reasons in the new year, it will make it easier to do the math since the rainfall number in your OS WMR-968 will be a little easier to understand then.