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Sorry Annken, bad advice. You assume that the internal resistance of the input is linear, and not voltage dependant, and that the output of the RayA would not be load dependant. That's most probably not true. Maybe it's possible to provide stabilised 5 V to the RayA stuff and still have it work...

On a longer trip, through 7 countries, hello, this is Europe, i was asked twice to report my altitude. The transponder happely squacked several flight levels different from altitude, becuase of extreme QNH´s Weaker souls might have started adjusting the encoder if that was possible. Better and...

Sounds correct to me. Regards, Jos Okhuijsen

No, but i have only 290 h. Regards, Jos Okhuijsen

The clock looses time when there is no internal battery or keep-alive power after switch-off. At the moment the dynon receives a vallid satellite signal, the clock is synchronised will show the local time and daylight saving time as per setup. Setup items are not dependant on keep-alive or...

It's not right to add CB values together. CB's are there to protect your wiring, including wiring inside equipmet. If you uses 5 A instead of 2 A, the result is that if there is a short circuit somewhere that there will be 5 - 2 = 3 square = 9 times more energy will be dissapated. You might (or...

Hi Graham, It's a simple question, but difficult to answer. Basically it looks like a wiring fault. Assuming that you have the latest version of the software, and that the shunt is correctly connected, pull the measuring leads from the shunt, and check them for continuity until the plug pins. I...

And grounded or not does not matter, the K and J type thermocouple inputs are floating. Regards, Jos Okhuijsen

Yes, the Rotax tach will still run. The same tacho in the 914 installation has one of the wires grounded in the TCU. So basically connect the tacho as per Rotax diagram, ground one of the wires, and pick the pulse off the other wire with the 30K resistor. Regards, Jos Okhuijsen

Hi Cris, It's boils down to a 25/13-15= 1.92-1.67 a factor too high. Multiply your K factor with that number and it should be close to right. Best however is to check your indicated usage and actual added fuel and adjust the K factor accordingly. That's in the manual. The fuel level sensor or...

Any digital level will do, Regards Jos Okhuijsen

Hi Philipp. Princeton capacitive, with 5 level points is the one i am using. Seems to be pretty precise in combination with the D180. Some cheking on the Westach senders, they make capacitive senders, 0 to 5 volts output, should work fine. They make also capacitve variable resistance probes...

Carl, Exactly as you say, these usb-serial adapters and their drivers are not made by Dynon. Installing drivers is basic Windows stuff. Drivers are not programs. There are several scenarios to do the job, depending on what the adapter manufacturer deemed usefull. Usually there is some...

From your question i suppose 12 V is the input voltage, on what the sensor works. The output of your sensor(s) is up to 5 volts, depending on how much fuel it sees. That's what the EMS takes as input. In short: feed 12V sensors with 12 V. I would measure that "up to 5V" output of your sensor, to...

(D180) Probably missing something, but is there a reason why using the backup power connection and display is not an option? Works here just fine. Regards, Jos Okhuijsen

Hi Dan, It's the return flow controller kit you need. Works like a charm. Put a push-button in the return sensor feed, and you can check the raw throughput of the fuel at the pre-flight. Regards, Jos Okhuijsen

Peter, You will need a serial to USB adapter. It's basically a cable as you describe, but with some logic involved, it needs drivers ect. Best to go to a computer shop and buy one. With that adapter cable in between, you will be back in business. The serial port number will change, which is no...

While i have seen some fluctuating amp readings (rotax914 with extra generator on the vac drive) on both generators, +-40 never. It looks you have an open circuit on one of the connections to the D180. Could you connect your meter to the D connector? Could you measure the AC component also...

Bad joke, and to my surprise i seem to have to explain why it is needed to have both. Rotax or other. Since tach is a function of cruise RPM and hobbs is approx the time the engine has been running, the hobbs/tach ratio reflects if the engine has been running faster or slower then cruise rpm...

The Princeton probe has a setup of it's own, which has to be done first. After that, the probe will only show what it sees, so fuel under and over the probe (filler tube) can not be measured. Thirdly, since it is a capacitive probe, it will only be reliable with the same quality of fuel, in...