Larry said, "I recall a reasonable priced fuel flow meter being discussed
a year or
two back . . ."
These things are a can of worms, unreliable over time and expensive. .
I've had one of these almost the entire eleven years I've owned N335KC.
I had to replace the sensor early on. Lowrance upgraded the sensor from
an EP-10 to an EP-60. The sensor is the part that goes bad with all the
different systems. A new sensor is about $165. The EP-60 needs
recalibration so often that I've ended up just letting the gauge fill up
the hole in the panel. Like you, I know how much fuel the engine uses
and don't need the gauge . . . however, having said that, another source
of real-time information is sometimes very valuable.
This is the "display" part of the unit. It's called an LMF-200
The sensor is installed in the line after the filter and in a vertical
position, preferably above the tank level but since that isn't possible
in our planes with header tanks I've got mine mounted below. It might
need less recalibration if I had it mounted above the tank, were that
They seem to have gotten more expensive over time. I'm seeing about $400
for the LMF-200 and the EP-60 sensor.
Another of these units with a better reputation than the Lowrance is from
Navman. FL-2100 on the display, sensor I don't know the number.
Floscan seems to be top of the line when it comes to fuel flow sensors.
Spruce carries the sensor and perhaps the display.
All these things are originally for boats with gas engines.
Customer service seems to be terrible no matter which one you buy,
reading the forums.
I was just reading about Dan's Red Cube and it seems over on Van's that,
just like the Lowrance LMF-200 with the EP-60 sensor and the Navman, they
work for some period of time then start failing so guys get on the forums
to see if they can figure out why. It's such a common phenomenon, with
all of the various fuel flow brands, that it's almost predictable. Of
course, it's only the people who are having problems that show up on the
forums. There may be thousands of these things working just fine in
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