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charles.long(at)gm.com
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 Posted: Wed Jan 11, 2006 10:17 am Post subject: CO Detector |
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A few months ago I had a muffler crack on my Zenith 601HDS due to a
defective weld. The problem was quickly resolved but prompted a study of
CO detection systems currently available on the market. Even without a
muffler shroud heater, the nosewheel actuator openings provide some
opportunity for Engine compartment gases to enter the cockpit. The
following CO detector was installed in my aircraft. It is self contained
and battery powered ( 3 x AA) so operation is simple and not dependent on
the aircraft electrical system. I mounted it on the side panel next to the
passengers legs with velcro (5 minute job). Here are some basic specs and
cost, although would encourage you to compare the many brands that are out
there before making a choice:
Kidde 900-0146 digital display model
Cost - about $30 (watch for sales at the big stores)
Displays CO levels above 30 ppm
Maintains in memory peak CO levels from 11-999
Low Battery and Error indications
Operating Temperature range 40 F - 100 F
85 DB audio alarm activates at 150 +- 25 ppm
5.5" diameter x 1.4" deep, .66 lbs
5 year limited warranty
Hope this prompts many of you to consider adding a CO monitoring
device to your equipment list.
Chuck Long
N601LE, 55 hr TT
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gfmjr_20(at)hotmail.com
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| Posted: Wed Jan 11, 2006 11:04 am Post subject: CO Detector |
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Chuck and all--
Although any CO detector is better than none, be aware that most of the
less expense ones (<$100) kickoff at about 30ppm. This is the standard for
home use, but is high for an enclosed cockpit.
I've gone with a COEXPERT (www.coexperts.com)unit that will detect easily
down into the single
digits.
George May
601XL 912s
On the road to retirement? Check out MSN Life Events for advice on how to
get there! http://lifeevents.msn.com/category.aspx?cid=Retirement
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doug kandle
Joined: 09 Jan 2006
Posts: 33
Location: Boise ID
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| Posted: Wed Jan 11, 2006 12:02 pm Post subject: CO Detector |
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I too have gone with this low level detector. The reason is that
long term exposure to even low levels can cause problems (there are
days when I fly 10 or 12 hours). Also, a problem that lets in low
levels may soon be admitting large levels.
I found that the it is not at all obvious where CO enters the
plane. I ran some experiments where I placed my detector in
different areas of my C-206. Left out in the open, I never get
anything. But cover it up and move it around and I found that I
could get a bit of CO coming in the rear of the plane (behind the
cargo area). I've heard that in some planes (like C-185s) there is a
significant risk of CO entering back near the tail. So even with no
leaks anywhere in the exhaust, there can be a risk.
It may be worth it to borrow a sensitive detector and fly with it
some to check out the baseline (normal) levels in your plane.
At 12:04 PM 1/11/2006, you wrote:
| Quote: |
Chuck and all--
Although any CO detector is better than none, be aware that most of the
less expense ones (<$100) kickoff at about 30ppm. This is the standard for
home use, but is high for an enclosed cockpit.
I've gone with a COEXPERT (www.coexperts.com)unit that will detect easily
down into the single
digits.
George May
601XL 912s
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Doug Kandle
CH701
Boise ID
Rudder & Horiz. Stab. done Working on 2nd Wing
Jabiru 2200
From complete kit
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craig(at)craigandjean.com
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| Posted: Wed Jan 11, 2006 2:20 pm Post subject: CO Detector |
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FWIW: A few weeks ago there was a discussion of 3-4 different ways to seal
or baffle the steering slots. I think I posted some of the builders' photos
on the sharing section.
-- Craig
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