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1. 05:41 PM - Re: Which Oil Pressure Switch? (Mudfly)
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| Subject: | Re: Which Oil Pressure Switch? |
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 . . .
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