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                           AeroElectric-List Digest Archive
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                     Total Messages Posted Thu 04/27/23: 1
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Today's Message Index:
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     1. 05:41 PM - Re: Which Oil Pressure Switch?  (Mudfly)
 
 
 
________________________________  Message 1  _____________________________________


Time: 05:41:34 PM PST US
Subject: AeroElectric-List: Re: Which Oil Pressure Switch?
From: "Mudfly" <shawntedwards@hotmail.com>


Ok Bob here's what I did to check the hourmeter.
I connected a power supply to the positive and negative pins on the 
hourmeter.   This illuminated the LCD digits but elapsed time was not recorded.
 I then added the enable pin to the positive lead from 
the power supply and elapsed time began recording.  
Unfortunately, I was unable to measure any current draw with the
equipment I have.    Probably too low I guess?
The placard on the hourmeter says 1/2W max.   
Anything else I can do?   
Thanks,
Shawn 


 [quote="nuckolls.bob(at)aeroelect"]At 07:56 AM 4/21/2023, you wrote:


   Shawn,

   Could you set this hourmeter up on the bench
   and measure the current draw on the enable
   pin in the pull-up configuration? I think
   I have a simple solution using p-lead
   signal from a mag to drive the enable pin
   but having that current value would facilitate
   optimization of the components.


   Bob . . .

                    //// 
                   (o o) 
    ===========o00o=(_)=o00o========= 
     
    < show me where I'm wrong.      > 
    ================================

    In the interest of creative evolution
    of the-best-we-know-how-to-do based
    on physics and good practice.[/quote]


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=510714#510714


 

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