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  #1  
Old 06-11-2022, 07:10 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,764
Default Carbon Monoxide Detector…

I found significant cracks in my muffler during Annual Condition Inspection. I have replaced entire exhaust system with a unit that has 70TT and all is good...

I have been following discussions about Carbon Monoxide (CO) related to Rotax exhaust systems that are held together with springs. I decided to install a CO detector and found a nice self-contained unit on Amazon for a very reasonable price. https://www.amazon.com/dp/B076S6KBP2...roduct_details

I used small pads of 3M Body-Side Molding Tape to mount the unit to the instrument panel. The tape provides a standoff and allows air to recirculate to the back side where the sensor is located. I also added 3M Black Vinyl electrical tape to the aluminum sides of the unit so it has similar appearance to iPads I use for navigation. I had screen protector left over from the iPads so I cut a pattern for the CO detector to eliminate glare. The installation photo is without the screen protector.

PIREP: I did a round-robin flight to four out-laying airports with full stop and taxi back. Detector shows zero CO during flight and zero CO during taxi with canopy closed. I saw 10 ppm during taxi with the canopy open for ground ventilation. I suspect engine exhaust is swirling into the open canopy during taxi. When canopy is closed, the detector again shows zero in cruise flight.
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Jim Stricker - EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 790

LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father - CFI) - USAAF 1st Lt. Captain B-17H
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  #2  
Old 06-11-2022, 08:34 AM
Mike S's Avatar
Mike S Mike S is offline
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,456
Default

http://www.fdatasystems.com/gd-40-co-detector

This is a unit designed to interface with your EFIS and audio system.

I have used them in the last two planes and am very satisfied.

Also, they use a long lasting CO sensor.
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Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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  #3  
Old 06-11-2022, 08:52 AM
plehrke's Avatar
plehrke plehrke is offline
 
Join Date: Sep 2006
Location: Defiance, MO
Posts: 1,940
Default

Quote:
Originally Posted by Mike S View Post
http://www.fdatasystems.com/gd-40-co-detector

This is a unit designed to interface with your EFIS and audio system.
I like to have any safety alert to have minimal threads that would cause failure to alert me of issue. Therefore I want my CO alert system to be stand alone and not dependent on my EFIS functioning or its wiring/connection.
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Philip
RV-6A - flying 1000+ hours
Paid dues yearly since 2007

There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact. —MARK TWAIN
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  #4  
Old 06-11-2022, 11:12 AM
rv8ch's Avatar
rv8ch rv8ch is offline
 
Join Date: Feb 2005
Location: LSGY
Posts: 4,795
Default

Quote:
Originally Posted by Piper J3 View Post
I found significant cracks in my muffler during Annual Condition Inspection. I have replaced entire exhaust system with a unit that has 70TT and all is good...

I have been following discussions about Carbon Monoxide (CO) related to Rotax exhaust systems that are held together with springs. I decided to install a CO detector and found a nice self-contained unit on Amazon for a very reasonable price. https://www.amazon.com/dp/B076S6KBP2...roduct_details

I used small pads of 3M Body-Side Molding Tape to mount the unit to the instrument panel. The tape provides a standoff and allows air to recirculate to the back side where the sensor is located. I also added 3M Black Vinyl electrical tape to the aluminum sides of the unit so it has similar appearance to iPads I use for navigation. I had screen protector left over from the iPads so I cut a pattern for the CO detector to eliminate glare. The installation photo is without the screen protector.

PIREP: I did a round-robin flight to four out-laying airports with full stop and taxi back. Detector shows zero CO during flight and zero CO during taxi with canopy closed. I saw 10 ppm during taxi with the canopy open for ground ventilation. I suspect engine exhaust is swirling into the open canopy during taxi. When canopy is closed, the detector again shows zero in cruise flight.
-
I use the same CO detector and get similar results - nothing when flying, but get alerts on the ground when the wind is behind me. So I know it's working, at least.
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http://www.rv8.ch/help-people-in-ukraine/
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  #5  
Old 06-11-2022, 02:09 PM
Bob Y Bob Y is offline
 
Join Date: Jul 2017
Location: Piedmont, SC
Posts: 385
Default

Quote:
Originally Posted by Mike S View Post
http://www.fdatasystems.com/gd-40-co-detector

This is a unit designed to interface with your EFIS and audio system.
I have used them in the last two planes and am very satisfied.
Also, they use a long lasting CO sensor.
Mike, I have this same detector in my -12. Do you have the aural output wired into the music input of the GTR-200? I had to disconnect my audio output due to a constant “popping” noise I was getting. After several back and forths with Flight Data Systems, they were able to duplicate the issue. The noise is coming from the Xponder. It’s radiated, not conducted, noise, as numerous ferrite beads applied to all wiring into the GD-40 produced no change in results. They’re working on a Faraday cage solution. Curious to know if I’m alone with this issue.
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#121047
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  #6  
Old 06-11-2022, 09:49 PM
rongawer rongawer is offline
 
Join Date: Dec 2007
Location: Brentwood, CA
Posts: 937
Default Aithre EX 3.0

I have the same handheld CO unit from Amazon and used it for several years. It's a nice, low cost option.

However, for my RV-10, the unit I've installed is an Aithre EX 3.0, which reads CO real time values, plus SpO2 (requires an addition sensor for the pilot) and also oxygen pressure (for your O2 tank if you have one), which all tie in nicely to any of the current EFIS systems. You can then customize and display values, along with any alarms you want to set.

I debated between the Guardian and the Aithre units, but for comparable money, the Aithre unit does more, and also has a nice iOS app as well.
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Ron Gawer

- RV10, N762G, Build in progress.
- Several others that are now just great memories for me.
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  #7  
Old 06-12-2022, 04:58 AM
thiggins thiggins is offline
 
Join Date: Mar 2020
Location: Saluda,NC
Posts: 124
Default Vans offering

https://store.vansaircraft.com/rv-12...ector-kit.html

Integrates with the G3X
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ASEL INST COMM Tail-wheeler
RV-12iS builder (Empennage complete, Wings complete!, Fuselage under way !, finish kit ordered, Garmin avionics ordered, engine order waiting for the global economy to be resuscitated...)
https://eaabuilderslog.org/?blproject&proj=7buPHH99v
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  #8  
Old 06-12-2022, 07:16 AM
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jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
Posts: 2,297
Default

I use the same CO detector and get almost identical results. Only time it ever got high enough to go off was when I was in line for departure at Oshkosh.
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Jereme Carne
PPL
RV-7A Flying as of 03/2021
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  #9  
Old 06-12-2022, 08:33 AM
Mike S's Avatar
Mike S Mike S is offline
Senior Curmudgeon
 
Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,456
Default

Quote:
Originally Posted by Bob Y View Post
Mike, I have this same detector in my -12. Do you have the aural output wired into the music input of the GTR-200?
I do have the audio wired up, using a Flight Data System audio mixer into a Trig comm radio.

I have not had any issues with a popping noise.

It is all working fine, gives me an alert whenever I get to 10k' altitude also.
__________________
Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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