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Altimeter Question

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currydon(at)bellsouth.net
Guest

Posted: Sun Oct 28, 2007 3:11 pm Post subject: Altimeter Question

I’m considering replacing the standard, 3-pointer altimeter in my single-engine aircraft with a counter-pointer type.  The candidates are an AeroMech 8141B, an ARC EA-801, and an ARC EA-401.  Does anybody know these altimeters and/or have any advice on making this change?  Since all three counter-pointer altimeters are the encoding type, I would have to remove my Transcal SSD-120-30K encoder.  Is that a wise move?  Does anybody have the pin-outs for the cannon-plug on the backs of these altimeters?  

Thanks in advance,  

Don  

   

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reichec

Joined: 23 Apr 2007
Posts: 26

Posted: Sun Oct 28, 2007 3:41 pm Post subject: Altimeter Question

Encoding altimeters are VERY EXPENSIVE to maintain  as a altimeter/encoder system. It is much cheaper in the long run to keep these  separate.  Call up Kelley Instruments  and ask how much an overhual is  on one of those units... you can buy alot of regular altimeters and encoders for  the price of 1 encoding altimeter overhaul.  That Trans cal ssd-120 should  last a long life for you.

  

 As an avionics tech and installer, I emplore you to  keep your 3 pointer system with separate encoder.  Save yourself the  heartache of failed pitot static inspections and costly overhaul bills down the  road.

  

 Charles Reiche

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currydon(at)bellsouth.net
Guest

Posted: Mon Oct 29, 2007 3:00 am Post subject: Altimeter Question

Would it be possible (or legal) to bypass the new altimeter’s internal encoder and retain the Transcal encoder?  

     

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