RPM , light speedIII or hall effect sensor??

[garyinflight@yahoo]

Got an issue getting RPM to work on SkyView on an F1 Rocket using a hall effect sensor (303DH2T)with 3 prongs , clearly not sure what prongs they should be assigned. I also have installed a new dual Plasma Light speed ign, witch should I use for the RPM? Only one wire from the light speed marked RPM / tach ,what pin would it go to? Thanks

 

[Dynon]

If the non-plasma ignition side has a regular magneto, we'd recommend skipping the hall-effect sensor all-together, and wiring to the p-lead through a 30k resistor as recommended in our installation guide. See http://dynonavionics.com/cgi-bin/yabb2/YaBB.pl?num=1312808970 for a similar case as yours.

On the plasma side (from their documentation):

----
All Plasma CD Ignitions have a standard tach pulse output on Pin-6 (signal) and Pin-
13 (return) of the INPUT connector. This tach signal is a 10V pulse that can be read
by most electronic tachometers or engine monitors. If your tachometer requires an
“open collector” type pulse, the Plasma III system can be configured for that signal
output at LSE. Note, some Electronics International and Vision Microsystems
instruments may require this modification.
----

Connect that wire to either the left or right low voltage rpm input (technically speaking the high voltage rpm inputs work here too)

 

[garyinflight@yahoo]

Dual plasma III ign, no mag. One shielded wire from the Lightspeed dual plasma III ignition marked tach/RPM. What pin does that wire go to get the sky view to indicate RPM??

 

[Dynon]

Sorry, there was a type-o in my original reply. It should've said either of the low voltage RPM inputs, which are either of pins 34 or 35 on the EMS D37 connector. Page 7-2 of rev P of the install guide (available at http://docs.dynonavionics.com) covers the RPM inputs in a bit more detail.

 

[garyinflight@yahoo]

thanks !!