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CO kit / was B&C SSF-1 finally died

 
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rd2(at)evenlink.com
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PostPosted: Sun Mar 12, 2006 6:33 am    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

Dan, this looks like a nice kit. Do you have any info about the CO
concentration threshold at which this kit triggers the alarm? Did any
calibration instructions come with the kit?
Rumen

_____________________Original message __________________________
(received from Dan Checkoway; Date: 07:13 PM 3/11/2006
-0800)


Quote:
Which CO kit did you build? Where to get it? How much?

http://www.electronic-kits-and-projects.com/4055.htm

I did a group buy with a bunch of local RV builders, so we took advantage of
the 5+ discount and the int'l shipping ended up being essentially
negligible.

Soldered it up and tested it with my truck exhaust, acetone vapor, etc. It
seems to work as advertised, although I have to admit I haven't even
installed it in the plane yet! (doh!)

)_( Dan
RV-7 N714D
http://www.rvproject.com


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dan(at)rvproject.com
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PostPosted: Sun Mar 12, 2006 9:55 am    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

Quote:
Dan, this looks like a nice kit. Do you have any info about the CO
concentration threshold at which this kit triggers the alarm? Did any
calibration instructions come with the kit?
Rumen

No, it doesn't mention anything about the threshold, which is adjustable
anyway. A friend of mine who also bought one said at work he has access to
different gases in different concentrations and was going to run some tests.
I haven't heard from him.

To be honest, it looks more like a kid's educational kit than a robust
device for use in an airplane, but for me the price was right and it seemed
to serve the purpose. If it didn't end up working, I didn't throw much $$
away finding out.

Sorry I don't have more details for you.

do not archive
)_( Dan


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rd2(at)evenlink.com
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PostPosted: Sun Mar 12, 2006 11:56 am    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

Thanks.
The reason I asked is I've been looking for a reliable, safe, alarm device
and I like DIY projects.
Since CO has no smell I think I need something that indicates reliably CO
over a threshold under harmful levels. Also a test/calibration method
simple enough and a test frequency schedule.
Rumen
do not archive


_____________________Original message __________________________
(received from Dan Checkoway; Date: 09:55 AM 3/12/2006
-0800)


Quote:
Dan, this looks like a nice kit. Do you have any info about the CO
concentration threshold at which this kit triggers the alarm? Did any
calibration instructions come with the kit?
Rumen

No, it doesn't mention anything about the threshold, which is adjustable
anyway. A friend of mine who also bought one said at work he has access to
different gases in different concentrations and was going to run some tests.
I haven't heard from him.

To be honest, it looks more like a kid's educational kit than a robust
device for use in an airplane, but for me the price was right and it seemed
to serve the purpose. If it didn't end up working, I didn't throw much $$
away finding out.

Sorry I don't have more details for you.

do not archive
)_( Dan




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BobsV35B(at)aol.com
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PostPosted: Sun Mar 12, 2006 3:22 pm    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

Good Evening Rumen,

This is going way off topic, but I thought I would mention it anyhow!

I believe having a Carbon Monoxide detector is a great idea, but you should
remember that one way to get rid of the CO danger is to operate on the lean
side of Peak Exhaust Gas Temperature. With a lean mixture, the CO level is so
low that there is no danger.

Consequently, if you do get a CO warning and you are operating on the rich
side, lean that hummer out!

Do Not Archive.

Happy Skies,

Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503


In a message dated 3/12/2006 1:57:58 P.M. Central Standard Time,
rd2(at)evenlink.com writes:
Thanks.
The reason I asked is I've been looking for a reliable, safe, alarm device
and I like DIY projects.
Since CO has no smell I think I need something that indicates reliably CO
over a threshold under harmful levels. Also a test/calibration method
simple enough and a test frequency schedule.
Rumen
do not archive


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chaztuna(at)adelphia.net
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PostPosted: Sun Mar 12, 2006 4:04 pm    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

Rumen,
I did a group buy of these as well last year. I've built 3 of them. The sensitivity is adjustable. There is an adjustable potentiometer on the board. There is an LED for a visual warning as well as a relay. You can set the relay up to trigger an audio alarm, or any other alarm you want.
Charlie Kuss
---- rd2(at)evenlink.com wrote:
Quote:


Dan, this looks like a nice kit. Do you have any info about the CO
concentration threshold at which this kit triggers the alarm? Did any
calibration instructions come with the kit?
Rumen

_____________________Original message __________________________
(received from Dan Checkoway; Date: 07:13 PM 3/11/2006
-0800)


> Which CO kit did you build? Where to get it? How much?

http://www.electronic-kits-and-projects.com/4055.htm

I did a group buy with a bunch of local RV builders, so we took advantage of
the 5+ discount and the int'l shipping ended up being essentially
negligible.

Soldered it up and tested it with my truck exhaust, acetone vapor, etc. It
seems to work as advertised, although I have to admit I haven't even
installed it in the plane yet! (doh!)

)_( Dan
RV-7 N714D
http://www.rvproject.com
















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frank.hinde(at)hp.com
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PostPosted: Mon Mar 13, 2006 7:29 am    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

What an xcellent point Old Bob..I hadn't thought of that!

Frank

RV7a...Final engine wiring...Then paint!..Oh yeah and sell my Zodiac..Sad

Do not archive

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frank.hinde(at)hp.com
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PostPosted: Mon Mar 13, 2006 7:29 am    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

If anyone needs these units calibrated I have access to an industrial CO
monitor that is regularly calibrated. I would be happy to calibrate one
or more of these units (especially if someone could get me a discount on
one..ha ha..Smile..).

If there are a buch of you in one locale I could do one and the rest of
you could calibrate to that...Should be a simple jobe once I have the
meter though so I am happy to do them.

My shop propane heater gives CO in about the right range so it should be
easy for me.

Let me know

Frank

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rd2(at)evenlink.com
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PostPosted: Mon Mar 13, 2006 7:41 am    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

Thanks, Bob.
Contacting you off-list on this.
Rumen
do not archive

_____________________Original message __________________________
(received from BobsV35B(at)aol.com; Date: 06:21 PM 3/12/2006
EST)



Good Evening Rumen,

This is going way off topic, but I thought I would mention it anyhow!

I believe having a Carbon Monoxide detector is a great idea, but you should
remember that one way to get rid of the CO danger is to operate on the lean
side of Peak Exhaust Gas Temperature. With a lean mixture, the CO level
is so
low that there is no danger.

Consequently, if you do get a CO warning and you are operating on the rich
side, lean that hummer out!

Do Not Archive.

Happy Skies,

Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503


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klehman(at)albedo.net
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PostPosted: Tue Mar 14, 2006 4:39 am    Post subject: CO kit / was B&C SSF-1 finally died Reply with quote

Figaro manufactured a number of gas sensors. One of the most common ones
was optimized for hydrocarbons and has a description much like this
unit. It was somewhat sensitive to CO. However there was also an
identical looking sensor that was optimized for CO that might be more
suitable for your purposes. Just a thought, I have no idea what sensor
this kit uses.
Ken

Hinde, Frank George (Corvallis) wrote:

Quote:


If anyone needs these units calibrated I have access to an industrial CO
monitor that is regularly calibrated. I would be happy to calibrate one
or more of these units (especially if someone could get me a discount on
one..ha ha..Smile..).

If there are a buch of you in one locale I could do one and the rest of
you could calibrate to that...Should be a simple jobe once I have the
meter though so I am happy to do them.

My shop propane heater gives CO in about the right range so it should be
easy for me.

Let me know

Frank



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