
-
VPT24-1PZ, Pro Mode, Sunup/Sundown offset time.
Eric Cohen Aug 29, 2013 3:29 PM (in response to Noah Eldridge)The offset is for both sunup and sundown and can only be used in PRO mode. Setting the offset to 60 would allow the sunup and sundown event to occur one hour after sunrise and sunset. Setting the offset to -60 would allow the function to occur 60 minutes before sunrise and before sunset.
-
Re: VPT24-1PZ, Pro Mode, Sunup/Sundown offset time.
Doug Forkes Jan 28, 2014 10:27 AM (in response to Noah Eldridge)What I wanted was to have "sunset" and "sunrise" be defined as when the sun was still somewhat below the horizon. I did this by changing my latitude from 43 degrees north to 28 degrees north, so that these events occur when the sun is 15 degrees below the horizon. The "offset" that Leviton provides is essentially a correction to the longitude (where 1 minute of time corresponds to 15 seconds of arc) which could be used to improve the precision of the longitude setting if you needed astronomical precision.