Sensor File for Release 17.1

[HEB1022]

In looking at the new sensor file, now included in release 17.1, it appears that the files for Aithre are now included. My past experience with this sensor file, is that Aithre has 2 versions (enhanced and non-enhanced/standard). I think, but have not completely verified that the new sensor file publishes only the enhanced settings, while some Dynon equipted airplanes (RV-12 for example in my case) are using the standard/non-enhanced pins. Does anyone have better information, or can Dynon respond with advise?


Thanks in Advance,

Harry

 

[JimRuttlerSr]

Hi Harry, sorry it has taken so long to respond. Had to get approval to post. You are correct that 17.1 does have include Aithre devices connected to enhanced pins. Thanks to Don Jones for putting us in this version. Just to be clear, the enhanced or non-enhanced SFG file is not related to a specific version of our devices. Our devices produce an analog output based on the parameter sensed. The enhanced or non-enhanced Sensor file only relates to the Dynon pin type to which you connect our analog wire. If you connect to an enhanced pin (8,22,23 or 31) you use the 17.1 as published. You should use an enhanced pin if available. If you connect to a non-enhanced pin, then you would need a different sensor file which can be found on our website under Aithre Shield Carbon Monoxide Detectors in the experimental section. If you do use a non-enhanced pin and the associated Sensor File, you will likely have to accomplish additional sensor file adjustments. We are happy to assist with these adjustments if required. Please read the Dynon addendum in the Aithre Shield EX 2.0|3.0|3.0-S Installation Instructions to obtain a more detailed explanation. Please contact me at jimsr@aithreaviation.com if you have further questions.

 

[swatson999]

WHY? Why not just include them both, with appropriate names? Jeez....

 

[Rhino]

That's another question for Dynon, and maybe Don Jones in particular. I know you've been asking for the config to be included for a long time, but I don't know if you've specifically asked them to include both versions. Seems to make sense, doesn't it?

 

[Calvind]

I have just added a generic (Winsen ZE07) CO sensor module to my HDX1100 system. Modified the sensor config file using the Aithre CO entry as a starting point. The "CO PPM" display is working and the warning/alarm levels indicate as expected. So now I wonder whether there is an audible alarm built-in to R17.1 that enunciates "Carbon Monoxide" when the level is high enough to trigger an alarm. I can find no info on this in the release notes. If this enunciation is possible what must be done to the SensorConfig file or other config to get it to work?

 

[Stevec]

I have just installed the Aithre, which is working great, and was advised by Dynon the the audio alarm you can expect is “ Engine Monitor” there is no Specific CO audio alarm built into the system.

 

[ve0kog]

I have just added a generic (Winsen ZE07) CO sensor module to my HDX1100 system.

These sensors seem very affordable, and looks like a no brainier to swap out every two years at the end of the service life. Beats the card with a dot.

are there any gotchas when installing them? do share the wiring if you can

 

[Stevec]

The Aithre Shield EX has a sensor life of 10 years and has three connection wires. Power ground and sensor output. Sensor output can go to any spare input on the EMS but the enhanced sensor inputs are the best apparently. Good install instructions and quick response from Aithre to fine tune sensor to my Skyview. Seems to work well and quite sensitive as I see a CO rise to about 8 units during runup on the ground but 0 in the air.

 

[Calvind]

I connected the ZE07 to a general purpose input (pin 21) and it works as expected. I powered it from the Aux 5V output (pin 18). The ZE07 is not baro compensated so I expect the indicated concentration will fall below true concentration as altitude increases. I am working on a a carrier board that will measure ambient pressure and account for that. The factory claim for service life of the ZE07 is 3-5 years. I plan to check it after 3 years. The ZE07 cost was ~$9.00 so when the time comes replacement should be fairly painless.
I tested the measurement channel using a potentiometer and found that there were no audio alerts for any indicated CO level. The yellow, red backgrounds for the displayed reading worked as expected.

 

[ve0kog]

the indicated concentration will fall below true concentration as altitude increases

thank you for the idea.

it looks like at 10,000 feet the true PPM value would be ~1.4x indicated. If the DA value is available from Dynon to use for the sensor output compensation that could simplify the circuit. You can't beat $9.