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It actually depends on the curve of the particular
make sensor, although they are mostly the same. 450 -500 millivolts is
where you find the 14.7 sto..metric, 750 - 850 millivolts best power and way
down around 250-300 millivolts best economy or in that ball park.
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
Sent: Friday, August 27, 2004 11:22
AM
Subject: [FlyRotary] Re: Engine run
Doesn't sound right. I thought 0.7 volts were best
(sto...metric) mixture.
0.8V volts more like best power and 0.6 and below
getting lean.
Finn
Russell Duffy wrote:
This is something that I've bugged
Tracy about pretty extensively. Mine does the same thing yours does,
and Tracy says his doesn't. I used to use the old gauge that Tracy
sold, and I've done some testing with it, and the EM-2 both connected
(verified not to interfere with each other). When the old gauge reads
mid scale, the EM-2 is about 7-8 bars. Since O2 sensors are supposed
to put out 0-1V, mid scale should be .5V, so I made a variable voltage
source, and used it to simulate the O2 sensor. At .5V, the EM-2 read
mid scale like it's supposed to, and the other gauge read below mid
scale. From that, I concluded that the EM-2 was doing what it was
designed to do, but I can't explain why my "mid scale" mixture is well above
mid scale on the EM-2. I tried using a new sensor, of the
same type others are using, and it made no difference. Now that you
have me thinking about this again, I just made a note to "fix" this
in the calibration mode.
Good luck. Don't get
discouraged.
Rusty (caught
up)
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