Saturday, June 18, 2016

Oil Temperature Indicator

This post is about an Engine oil temperature gauge.

Some info about the unit...

Brand: The Lewis Engrg. Co.
PN: 162BL804A

Some pictures...


Unfortunately this is another unit that it is sealed, so again I had to cat the housing to be able to get an schematic.
This is a totally analog device, so it wasn't so much effort to figure out the pinout.

The pinout...


Later I will make a curve to see the relation of the position of the pointer with the input current.

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