Kamis, 19 Juni 2014

What does the number 68 mean on a carbon monoxide detector?




ivy


CM Detector indicator went from 0 to 68. Although it is not beeping, I am slightly concern.


Answer
The LTEL long-term exposure limit is set in the low 30s, whether ppm or mgm3. Your 68 is not a lethal level, but you are exceeding the LTEL and could be in a situation where, over time, the CO will build up in your body and start giving you problems. That's because CO bonds to your blood hemoglobin just like oxygen. But unlike oxygen that readily does it's work and leaves, CO wants to hang on for a long long time. That's why it builds up to the point of giving you problems.

Call the utility company now and ask if they will come out and measure things around the home with their meter. They do that free. Other sources of help are the local fire station and the environmental health division of the local health department.

You might not have any problem if the meter is screwed up. Then again it could be worse than what you are measuring. I would get a handle on things very quickly.

Carbon Monoxide detector went off?




delia


My CO detector went off, but the voice said 0 PPM. It's only a month old. On the ceiling in the finished basement. It's not near any lights. It's in a separate room as the furnace.
Should I be concerned?

Add info: I bought it because a very old one I had in that spot went off. I called 911, the firemen closed the windows (I opened them when it went off) turned up the thermostats; said they couldn't find any readings and told me to buy a new one.

The CO detector is up again and hasn't gone off again. Should I call 911?
Thank you for your responses STEVEN F and adam/penny. I will look for someone to come out and test. It was weird it went off the one time saying go to fresh air 0 PPM, but for no reason. And 0 PPM is nothing, so that's why I came here to ask.
When the firemen came that day they went right up to the running furnace and got nothing. I don't know where else the problem could come from.

Anyway, thank you again. You are both very helpful.



Answer
most of us don't realize it but those detectors come in different co2 detection modes..
i had a similar problem with a new one i bought that went off frequently and after having service people come out to the house they were unable to detect anything wrong. however they said the detector i had purchased was set too low and that's why it went off.
that one cost me over $100.00 for the guys to come out and check.




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