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           ----------------------------------------------------------
                           Stratus-List Digest Archive
                                      ---
                     Total Messages Posted Sun 02/12/06: 2
           ----------------------------------------------------------


Today's Message Index:
----------------------

     1. 08:05 AM - Re: troubleshooting secondary ignition  (Bill Morelli)
     2. 08:28 AM - Re: troubleshooting secondary ignition  (Larry McFarland)



________________________________  Message 1  _____________________________________


Time: 08:05:47 AM PST US
From: "Bill Morelli" <billvt@toge...>
Subject: Stratus-List: Re: troubleshooting secondary ignition

--> Stratus-List message posted by: "Bill Morelli" <billvt@toge...>

Do you have access to an oscilloscope?

If you are talking about the Stratrus backup ignition that runs off the flywheel,
I believe it is a hall effect sensor. It has a power lead that supplies 12
volts. The other two leads are the output.

Using the oscilloscope you would see the hall effect level increase, then decrease
(a pulse) when a magnet is passed by.

If not, you can use a voltmeter and you should be able to measure the voltage rise
when you place a magnet close to the pickup. If you move the magnet by slowly,
the hall effect will trip high and stay there so the meter will have time
to measure it then go back down as the magnetic has passed. Any small magnet
should work, no need to use the flywheel. Just remove the pickup and pass a magnet
by.

Regards,
Bill














________________________________  Message 2  _____________________________________


Time: 08:28:47 AM PST US
From: Larry McFarland <larrymc@qcon...>
Subject: Re: Stratus-List: troubleshooting secondary ignition

--> Stratus-List message posted by: Larry McFarland <larrymc@qcon...>

John,
If you're speaking of the magnetic pickup at the flywheel, these can
become intermittently-functional.
On my first flight, the secondary ignition magnetic pickup quit and as I
taxied back to the hangar, it
became functional again.  Mykal informed me that a few of the pickups
were overheated during their
soldering process and would do that.  He exchanged the one I'd sent him
and I've had no problems
with it since.  Not sure how to test one though. You might post this to
the Aeroelectric List for the
technical side of testing pickups.  They really get into this sort of thing.

Larry McFarland - 601HDS
do not archive

John Karnes wrote:

>--> Stratus-List message posted by: "John Karnes" <jpkarnes2000@msn....>
>
>Hi all,
>
>Having trouble getting my secondary ignition to work.  I installed a new TP
>45 and verified the 12V power to the system.  Is there any way to verify
>that the magnetic pickup is operational?  When initially installed, the
>system was operational.  I even sent it to Templeman and he gave it a "clean
>bill of health".  Any suggestions?
>
>John K.
>Bremerton, WA
>Zenith 601 HDS
>
>
>
>
>
>
>
>  
>


















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