Today's Message Index:
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1. 05:18 AM - Dynon D180 tachometer on Jabiru 3300 reading low (Peter Thomson)
2. 05:51 AM - Re: Dynon D180 tachometer on Jabiru 3300 reading low (andysilvester)
Message 1
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| Subject: | Dynon D180 tachometer on Jabiru 3300 reading low |
My friend had thought he lost RPM on the engine, butr in fact, it was
only on the Dynon D170 reading.
A TinyTach showed normal readings, where the Dynon showed a few
hundred RPM less, and even decreased while the engine RPM were stable.
The take-off is from the alternator, 6 pulses per RPM.
Has anyone else seen this problem with the Dynon ?
thanks
Peter
Message 2
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| Subject: | Re: Dynon D180 tachometer on Jabiru 3300 reading low |
Peter,
Try swapping the Dynon's rpm sense wire to the other alternator output wire. It
shouldn't make a difference, but I've found it does on the EIS. Otherwise, just
check wiring, configuration and grounds. We've not had any such issues with
the Dynon EMS D120; a similar instrument. The D120 can have two rpm inputs (left
and right) to suit Lycomings, but just use the 'left' input and don't connect
the 'right'.
Cheers, Andy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=319108#319108
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