Search found 56 matches

by DA74254
Mon Jan 01, 2018 11:20 pm
Forum: Usage tips, tricks and problem reports
Topic: Windows error message when Activate USB Disk
Replies: 3
Views: 809

Re: Windows error message when Activate USB Disk

I wouldn't be concerned.
Windows works in mysterious ways, and I get the same message. Just continue without scan.

I have external drives that Windows hav wanted to scan for years. Never let it an never had problems with the disks :)
by DA74254
Mon Dec 25, 2017 2:26 pm
Forum: Update Announcements
Topic: DM42 Firmware V3.1 available
Replies: 97
Views: 16376

Re: DM42 Firmware V3.1 available

Hmm, only to ask, and what I vaguely remember; isn't semicolon to be used to avoid disambiguity? As in "I met with my parents; Jill and Tony" (not mine, just an example), where semicolon is used for statement that is inside one sentence. Thus no need for capital letters as if used colon? (Ok capital...
by DA74254
Sat Dec 23, 2017 9:08 pm
Forum: Software Library
Topic: Relative humidity and dew point
Replies: 5
Views: 1234

Re: Relative humidity and dew point

Here's a Youtube link (not me) of how to use a Psychrometer to get the wet and dry temperatures:

https://www.youtube.com/watch?v=QbcaCxuA1LI
by DA74254
Sat Dec 23, 2017 5:29 pm
Forum: Software Library
Topic: Relative humidity and dew point
Replies: 5
Views: 1234

Re: Relative humiditu and dew point

Wet bulb? Dry bulb? Please explain to me, who is a dim bulb! :? As explained here: "In the Olden Dayes" one used (actually, it's occationally still used today, at sea) a " Psychrometer " , which is two bulb type (spirit loaded) thermometres where one covered one of them with a small piece of wet cl...
by DA74254
Sat Dec 23, 2017 3:20 pm
Forum: Software Library
Topic: Relative humidity and dew point
Replies: 5
Views: 1234

Re: Relative humiditu and dew point

Explanation here :) No, Eddie's program does not include wet/dry thermometer, thus "very loosely based" as mentioned. Eddie has taken the approach that you know the temperature and the RH (relative humidity), of which you can use to calculate the Dew Point. That is, how cold an object in the said en...
by DA74254
Sat Dec 23, 2017 2:43 pm
Forum: Software Library
Topic: Relative humidity and dew point
Replies: 5
Views: 1234

Relative humidity and dew point

My first post here and. Based very loosely on Eddie Shores Dew point program in his blog http://edspi31415.blogspot.no/2016/07/hp-42s-programming-part-ii-dew-point.html I made a bit more elaborate program. This one takes three arguments "Wet Bulb", "Dry Bulb" (thermometer) and the barometric pressur...