Infiltration
THEORY
Ethics
Observations
 
PRACTICE
Abandoned Sites
Boats
Churches
Drains/Catacombs
Hotels/Hospitals
Transit Tunnels
Utility Tunnels
Various
 
RESOURCES
Exploration Timeline
Infilnews
Infilspeak Dictionary
Usufruct Blog
Worldwide Links
Infiltration Forums home | search | login | register

Infiltration Forums > Archived UE Tutorials, Lessons, and Useful Info > Just bought an Oxygen monitor. (Viewed 322 times)
Freak 


location:
Usually Alaska, now MSP.
Gender: Male


Hypocrite

Send Private Message | Send Email | Alaska UE
Just bought an Oxygen monitor.
< on 5/8/2005 3:23 AM >
Posted on Forum: UER Forum
 
I just bought a Scott Mini-SA with oxygen sensor (similar to this: http://www.omnicon.../scott-mini-sa.jpg). Supposedly the sensor is new and should last 3-5 years before needing replacement. It seems to work pretty well and it's very sensitive, just breathing on the sensor can drop it down below the warning level and set off the alarm. The loud beeping can be annoying, but I can't think of a situation where I'd need stealth in a potentially low-oxygen environment.

One thing that's odd is that it reads slightly higher than the "standard" 20.9% atmospheric oxygen concentration. Yesterday it was 21.1, and today it was all the way up to 22% in the house. I'm not sure if being right at sea level, in a rain forest, with house plants can raise the oxygen concentration in a house, or if my sensor needs calibration.

On a related note, the guy who owns the local gold mine finally told me to stay out due to bad air, so this thing might change his mind about letting me poke around



Turn off the internet and go play outside.
http://spamusement...hp/comics/view/137
junkyard 


location:
LaCrosse, WI
Gender: Male


Strategic Beer Command where the metal hits the meat.

Send Private Message | Send Email | StrategicBeerCommand
Re: Just bought an Oxygen monitor.
<Reply # 1 on 5/8/2005 3:31 AM >
Posted on Forum: UER Forum
 
Not so fast in the mine yet. It may read O2, but the poison gas will still kill you no matter what O2 levels are. People have walked 30 feet in and dropped dead, not often, but it only takes once.

I drink gasoline for breakfeast and beer for dinner!
Any problem can be licked with a case of beer and a few sticks of dynamite.
Strategic Beer Command ruling the desert since 1995 http://www.strategic-beer-command.com
Avatar-X 


Alpha Husky

location:
West Coast
Gender: Male


yay!

Send Private Message | Send Email | AvBrand
Re: Just bought an Oxygen monitor.
<Reply # 2 on 5/8/2005 3:59 AM >
Posted on Forum: UER Forum
 
Yeah, get an oxygen tank ;)

-av

huskies - such fluff.
Macsbug 


Noble Donor

location:
St. Paul, MN
Gender: Male


Safety First!

Send Private Message | Send Email | AIM Message
Re: Just bought an Oxygen monitor.
<Reply # 3 on 5/8/2005 4:02 AM >
Posted on Forum: UER Forum
 
People have walked 30 feet in and dropped dead, not often, but it only takes once.

Thats right, I don't walk 30 feet in and drop dead often. I think the once would do it.

"Believe those who are seeking the truth; doubt those who find it."
tick 


location:
Abingdon, VA
Gender: Male




Send Private Message | Send Email | AIM Message | 
Re: Just bought an Oxygen monitor.
<Reply # 4 on 5/9/2005 2:33 AM >
Posted on Forum: Infiltration Forums
 
Posted by Freak
One thing that's odd is that it reads slightly higher than the "standard" 20.9% atmospheric oxygen concentration. Yesterday it was 21.1, and today it was all the way up to 22% in the house. I'm not sure if being right at sea level, in a rain forest, with house plants can raise the oxygen concentration in a house, or if my sensor needs calibration.


I use a multigas monitor at work (forgot the make/model), and the oxygen reading does the exact same thing. It's very annoying. Do you have the gas tank to re-calibrate it? We have to check the calibration of ours daily, and re-calibrate it once a week or so.


Freak 


location:
Usually Alaska, now MSP.
Gender: Male


Hypocrite

Send Private Message | Send Email | Alaska UE
Re: Just bought an Oxygen monitor.
<Reply # 5 on 5/9/2005 3:49 AM >
Posted on Forum: UER Forum
 
My dad has a tank of welding oxygen, but I don't think it would work for calibration

Turn off the internet and go play outside.
http://spamusement...hp/comics/view/137
OttoL 


location:
Pacific Northwest
Gender: Male


Renob

Send Private Message | Send Email
Re: Just bought an Oxygen monitor.
<Reply # 6 on 5/9/2005 4:02 AM >
Posted on Forum: UER Forum
 
No, You need the special calibrating gas from the equipment manufacturer. As far as in tunnels, a low O2 aint my biggest worry....I am worried about other gasses that can actually kill you pretty fast.

The one we use at work also seems to like to display around 20-22% so, I guess this is normal.

Freak 


location:
Usually Alaska, now MSP.
Gender: Male


Hypocrite

Send Private Message | Send Email | Alaska UE
Re: Just bought an Oxygen monitor.
<Reply # 7 on 5/9/2005 4:14 AM >
Posted on Forum: UER Forum
 
Well, I'm mainly hoping to use this in local mines, where the main danger is just a lack of oxygen (not sure what's taking it's place, probably CO). In one of them you can take a candle with you, and when the candle goes out then you know there's not enough air to stick around (terrible method I know). I thought about using a mouse or getting an antique safety lamp, but I figured the digital sensor would be more accurate

Turn off the internet and go play outside.
http://spamusement...hp/comics/view/137
OttoL 


location:
Pacific Northwest
Gender: Male


Renob

Send Private Message | Send Email
Re: Just bought an Oxygen monitor.
<Reply # 8 on 5/9/2005 5:15 AM >
Posted on Forum: UER Forum
 
Isnt there a danger of methane in old mines? I think thats why they brought the little canary in a cage with them.... Canary dies, time to get the hell out..

I dunno, but are canaries cheaper than your O2 monitor?

Freak 


location:
Usually Alaska, now MSP.
Gender: Male


Hypocrite

Send Private Message | Send Email | Alaska UE
Re: Just bought an Oxygen monitor.
<Reply # 9 on 5/9/2005 5:33 AM >
Posted on Forum: UER Forum
 
I paid about $70 for the monitor, with shipping. That's pretty normal for a mini-SA on ebay. I could catch field mice and bring them along, but I don't know how sensitive they are to low oxygen levels.

The big mine that I hope to explore this summer actually has a pretty good air flow through it, but some of the smaller mines that dead-end with only one entrance are the ones with bad air.

Turn off the internet and go play outside.
http://spamusement...hp/comics/view/137
junkyard 


location:
LaCrosse, WI
Gender: Male


Strategic Beer Command where the metal hits the meat.

Send Private Message | Send Email | StrategicBeerCommand
Re: Just bought an Oxygen monitor.
<Reply # 10 on 5/14/2005 4:46 AM >
Posted on Forum: UER Forum
 
Canaries are old school man, but they still work. Something about their heart rate being faster the gas gets them first I think. Either way, they're not fool proof, but cheap and better than nothing.

I drink gasoline for breakfeast and beer for dinner!
Any problem can be licked with a case of beer and a few sticks of dynamite.
Strategic Beer Command ruling the desert since 1995 http://www.strategic-beer-command.com
ofberenonehand 


location:
Minn-e-snow-ta


"Where now is Boromir the Fair? He tarries and I grieve."

Send Private Message | Send Email
Re: Just bought an Oxygen monitor.
<Reply # 11 on 5/14/2005 5:04 AM >
Posted on Forum: UER Forum
 
Pair the thing with a mask and you would be pretty dern safe.

"That's What Government Is For; To Get In A Man's Way" -Mal
Infiltration Forums > Archived UE Tutorials, Lessons, and Useful Info > Just bought an Oxygen monitor. (Viewed 322 times)

Powered by AvBoard AvBoard version 1.5 alpha
Page Generated In: 46 ms