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sean(at)stephensville.com
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 Posted: Sat Apr 10, 2010 1:59 pm Post subject: Gretz GA-1000 Wiring |
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Quick question regarding the four wires coming from the GA-1000 pitot.
The P+ and P- wires are marked, but I just wanted to verify that the two
smaller wires are the thermistor. The instructions don't specifically
say and the wires aren't marked.
Thanks,
-Sean
#40303 (back at it after a few years hiatus)
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Jim Berry
Joined: 10 Jan 2006
Posts: 237
Location: Denver
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| Posted: Sat Apr 10, 2010 3:39 pm Post subject: Re: Gretz GA-1000 Wiring |
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Sean,
You are correct. Also, check your Gretz pitot for leaks before installing it in your wing. It is a pita to discover a leak later on. Ask me how I know.
Jim Berry
40482
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Sat Apr 10, 2010 3:49 pm Post subject: Gretz GA-1000 Wiring |
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Your assumption is correct. Andrew has installation instructions on his web
site. http://www.angusaviation.com/
bob
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Bob Leffler
N410BL - Phase I
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Sat Apr 10, 2010 3:57 pm Post subject: Gretz GA-1000 Wiring |
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Not only check for leaks, but proper operation. I had a thermistor that
had one lead shorted to ground. It worked well on the bench, when the pitot
body wasn't grounded. It got squirrelly when it was installed. It took
quite a bit of testing to find the root cause. The good news was Andrew was
prompt sending a replacement.
Bob
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Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler |
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