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Message
Rusty,
My EM-2 is on its way. Can you shed some light
any possible gotcha's.
Mark S.
Hi
Mark,
It's a little early for
that question, because I'm still working on the sensor hook-up.
Unfortunately, my most productive activity today was lunch :-)
Seriously, so far,
everything has gone pretty well. I had to call Tracy today because the
liquid temp 2 and 3 inputs didn't seem to work. He explained that you need
to put a 200 ohm resistor in parallel with the VDO sensor for each of
those. He put the resistor on the board for water temp, and oil temp, but
figured that leaving off the resistor gives the user more latitude to use odd
sensor types on the extra temp inputs. I'll be hitting Rat Shack tomorrow
to see if he's making this up :-)
Speaking of sensors, I
would suggest that you get the exact sensors that he recommends, unless you're a
true glutton for science experiments. The unit is programmable for
virtually any sensor range, but you'll certainly spend some time doing it.
At the moment, I don't have the patience to test all this to the Nth degree, so
I'm ordering some new pressure sensors in the morning. It's not as
wasteful as it might sound, because I have gauges that match the sensors that I
have. I'll just put the sensors with the gauges, and use them on the
Airbike, or ??? I have a calibrated thermocouple, and will
be double checking Tracy's calibrations on the temps.
A quick check today showed that they were within about 10
degrees, which is good enough for now.
I'll certainly post more
when I get everything hooked up and learn how to use
it.
Cheers,
Rusty
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