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Seems normal to me. When the PSI drops below 2.2, that's the event which fires the alert. If it stays below 2.2, there's no event.

Just the one on the battery.

Seeing in the EarthX documentation that it's normal and expected is enough for me, for now. :)

Found the answer. Should have used better search terms. I'm working on a new install of a Rotax 912iS in a Zenith 750 with a Dynon HDX in the panel. I recently noticed that my EarthX fault LED indicator was on, started troubleshooting, and this is what I've found: - With main relay on, engine...

The harness supplied with the EMS-221 was mis-wired, the green and blue wires were in the wrong holes. I moved the pins to the correct holes and it now works. See https://www.rotax-owner.com/en/912is-technical-questions/9481-photos-of-rotax-dynon-can-wiring?start=5#p34089 for more info.

Having trouble getting Rotax 912iS data on the Dynon HDX, they're just not talking. I'd love to see photos of how people have connected the Dynon CAN lines (blue and green) to the Rotax HIC A and B connectors. Any real photos of real working installs?

During a late-night wiring session, I forgot that the 103757 sensor is a 5v device, not a 12v device. Did I kill it? My fuel pressure widget is always crossed out, and the VALUE column never populates. But the RAW and CAL numbers do change if I blow into the opening. The widget did work when I...

I’ve confirmed the CANBUS connections from both the Dynon and Rotax 912iS installation manuals, but what about the Rotax CAN GND connections? Do these go to a shared EMS ground pin? Airframe ground? Not connected? HIC A 6 CAN_H1A >> Dynon EMS 36 HIC A 5 CAN_L1A >> Dynon EMS 37 HIC A 4...

It's been suggested, but since the knob has no set screw, the pressure of the o-ring pushes the knob to slide on the shaft, reducing the tension back to zero. Many folks have commented that their knobs are the same as mine, so it's "normal."

Unboxed my SV-COM again today, preparing to cut my panel for install, and noticed that the volume knob has no tension at all. The HDX knobs are clicky, the COM tune knobs are clicky, the Intercom knobs have a good bit of resistance, which is what I'd expect of any non-clicky knob. The COM...

I've gone through the Map Items list but can't find "Traffic" mentioned anywhere. I'd like to have traffic appear only when the map is zoomed down to a certain point (maybe 5 or 8nm). Seeing our local ClassB traffic all stacked up, obscuring my plane, when zoomed out to 20nm is just an absolute...

I'd look for "silicone led strip" or "EL wire" and see where that gets you. Such as, https://www.adafruit.com/?q=silicone+led+strip&sort=BestMatch https://www.adafruit.com/?q=el+wire&sort=BestMatch

It was clear. I'm just still confused why the GPH display would not inherit and calculate fuel burn based on this adjusted value.

Works great!

So it's possible that the always visible bottom band could read a comfortable 3GPH, while the fuel computer, when invoked, could show the true burn of 6GPH? I'm exaggerating, obviously, but the point is that the front-and-center-in-your-face-at-a-glance data could be very wrong. The corrected...

Reading the HDX installation manual, I came across this: Is this still true? If so, it's kinda nuts. If the fuel computer can use the compensated pulses/gallon value to calculate the correct Total Fuel Used, why not use the compensated value in the displayed Fuel Flow widget? Also, which value...

To make the pitot tube the smallest forehead-target possible, I'm wondering if the mast can be cut shorter. How short can it be? Looking for pitot port must be n" below bottom surface of wing guidance.

Yep, got a reply from Dynon as well. A binary "12v is on/off via pin_n" seems like it would be relatively simple. And your link to the wiki page will come in very handy!

The 1gal Skytek header is about 2” wide, 5” deep and 3’ tall. The inlets take up the whole top surface. No space for a levered arm style sender. Plus, a half gallon below the top is half empty, definitely want an alert before then. :)

I'll be installing a header tank in my experimental, and there's an option to install a fuel sender in the top of the tank. The purpose isn't to show linear level, but rather to state that fuel either is or is not present at the top of the tank. If not, a big red light tells you that the wing...