|
|
Greetings Chris,
You may have a problem with the Skyview, or perhaps you have programmed it incorrectly. A call to Dynon would probably clear that up fairly easily. A quick and dirty test is to connect the EGTs to your EM-3 (or 2) . this, I believe will be necessary, anyway, in order to auto-tune the tables.
I also have both of these monitors. The renesis is a little different in that it has 3 exhaust ports (one a combination of front and back--Frack or baont--.
I use the EGT's from front and back to go to em-3 and the middle one to go to the skyview.
Assuming that you get the blinking blinking (duplication intended) problem fixed, I would recommend that you connect the EGTs to your EM-whatever until you get your system flight tuned and then switch them to the skyview. Alternatively you could put 2 sensors in each stack,
Because you are really not looking at specific numbers (although available--if indeed they are accurate) and are really looking at relational values-- hotter or colder as you change the mixture, with respect to peak, It seems to me, and others may differ, that the location, in the exhaust pipes is of less concern than the equal distance from the exhaust ports that the probes are located. Obviously, the farther away from the port the lower the temperature will read due to loss of heat through the pipe.
A question on your prop.
You mentioned that you were only able to get 6500 RPM at full throttle and fine pitch. I know that you may not have had the wherewithal to look at this (considering the amount of adrenalin pumping through your system with the tests), but did the engine RPM increase as you were moving during your High speed taxi
How was your acceleration?
What kinds of prop noises were you hearing and how did they change, if at all?
Is it possible that when you were static, your blades, were indeed partially stalled?
Rich
-----Original Message-----
From: Chris Barber <cbarber@texasattorney.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, Jun 7, 2012 11:45 am
Subject: [FlyRotary] Re: EGT
Tracy,
Speaking of EGT's. I am using
my Dynon Skyview to read my EGT's and not the EM2.
With the EGT sensors not connected
the EGT readout blinks. I asked you if there was a way to stop the blinking and you suggested connecting the sensors to each other which I did, both the red wire to red and yellow to yellow on the separate sensors as well as the red to yellow on the individual
sensors. None of this stopped the blinking.
Do you have any other suggestions
as the blinking is a bit distracting?
Thanks.
Chris
Sent from my iPhone 4
Possible it may be going open (thermocouple sensors are normally a shorted junction) but also possible you are picking up noise on the leads from some source. These are millivolt level signals so it doesn't take much noise to make a wild reading. Keep
leads away from high tension wires (spark plug leads) and lines with a lot of switching current (injector, ignition coil power, etc).
Tracy
On Wed, Jun 6, 2012 at 11:01 PM, <hoursaway1@comcast.net> wrote:
Info needed about EGT sensors, on my RWS EM2 #2 EGT about every 10 seconds will come up as 4000 deg. F. or so. Is the sensor going open or shorted intermittently. Have not checked it yet, just removed break-in oil after 24 hrs. run time & went with 20w50w
full synthetic, getting ready for first flight ( got delayed last year by coolant & oil temp readings in-op., solved & my youngest daughter grad. EMU, Meagan & Cody moved to Bloomington Illinois for Cody's new job, with dad as one of the movers ). David
R. Cook RV6A Rotary Lansing MI.
|
|