I'm sure that's the zero adjust screw but I wouldn't bother with it untill it's mounted in the panel unless you just want to test it.
----- Original Message ----- From: "AVLEC" <[email protected]> To: "KRnet" <[email protected]> Sent: Friday, September 15, 2006 1:19 AM Subject: KR> VSI > Hi Guys > I have just taken delivery of a UMA VSI unit and noticed something that > needs attension. The needle does not sit on zero. If I place my finger > over > the rear port and apply slight pressure it will zero or even show a > descent > depending on the amount of pressure applied. This is understandable and > proves that it is working I suppose. It has an adjustment screw in the > bottom left mounting screw position. Would this be the zero adjustment for > the unit or something else? The literature that came with the unit is of > no > help in this regard at all. > For interest sake, does anybody know exactly how these things work. I know > it measures the rate of change in static pressure but then the needle > should > return to zero or at least move in that direction if I keep a constant > pressure on the rear port with my finger. > Thanks > Regards > Dene Collett > KR2SRT builder > South africa > Whisper assembler > See: www.whisperaircraft.com > mailto: [email protected] > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html
