Mailing List lml@lancaironline.net Message #69777
From: Nick Long <nick@beaglepup.info>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: VMS1000 pressure gauges on LNC2
Date: Wed, 16 Apr 2014 15:29:46 -0400
To: <lml@lancaironline.net>
Hello Everyone,
 
A few weeks ago we had a discussion about this, and I then went away and checked my installation. After measuring the voltages I concluded that the display unit is ok, but both the Oil Pressure and Fuel Pressure sensors are not behaving.
 
So then I looked into replacements. There was an interesting post last September from Bill Rumburg about using sensors from Measurement Specialities; the originals are Honeywell Mediamates.
 
Bill was saying the OP and FP transducers are different in their voltage vs pressure response by a factor of 2 and he was exploring some alternative devices. But here is another idea. Why not just find a sensor that gives the correct output for FP? The same sensor will give 2x the reading if used for OP, but that can be scaled down by 2 with a simple precision resistor network.
 
If that is correct, and I’ve followed the previous discussion correctly, then Digi Key have the very item we need:
 
What do you think, people?
 
Yours,
 
Nick
 
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