Author Topic: Air Quality Sensors  (Read 3615 times)

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Offline schwab

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Re: Air Quality Sensors
« Reply #50 on: November 30, 2017, 07:59:00 PM »
Your sensor is on the PurpleAir map but “greyed out” with data over 3 hrs old

So it did indeed log data until 3:40pm

I guess I’d verify your router shows it’s IP on your network

Restart everything?

Offline Skywatch

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Re: Air Quality Sensors
« Reply #51 on: December 01, 2017, 11:48:56 AM »
Sensor is back up and running. For some reason the last time I configured it our house WiFi didn't save in the sensor. But everything is working for now and hopefully it stays that way.
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Offline Skywatch

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Re: Air Quality Sensors
« Reply #52 on: December 01, 2017, 11:38:17 PM »
Since getting my PAII running I've been watching the map closely today and I'm actually becoming fascinated with it. There are several stations to the south of me scattered throughout the Dallas/Fort Worth Metroplex and today we had a light Southeasterly wind and I would watch the AQI from the stations south of me fluctuate and several minutes later mine would show the same fluctuations. I kinda visualize the pollutants as clouds that are driven by the wind.

I also get the impression that the point behind the temperature/humidity and air pressure sensors is to debunk fog and moisture related errors.

All in all I'm really enjoying the PAII. It's fun to watch the numbers change and compare with my weather station's data.
HARDWARE
Davis VP2+ with leaf/soil, extra temp/humid station custom wind. Purple Air PA-II. Boltek LD-250/Microsferics TOA kit.
SOFTWARE
WD 10.37

Excelvan WH2310 WD 10.37

Offline bleomycin

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Re: Air Quality Sensors
« Reply #53 on: December 05, 2017, 08:03:51 PM »
I was hoping someone who knows more about how these sensors work could help me. I have my Purpleair sensor installed and it's been working great, but there are active wildfires in my area (Southern California). When outside you can easily smell smoke but my purpleair sensor along with at least 50+ others in the area are all reading below 10 AQI. The aqmd.gov website states "In any area where you can see or smell smoke, everyone should avoid vigorous exertion and limit outdoor exposure."

Why is it that I can smell smoke but all the purpleair units are showing the air is the cleanest it's been all year?

Offline Toxic

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Re: Air Quality Sensors
« Reply #54 on: December 06, 2017, 02:49:39 AM »
Why is it that I can smell smoke but all the purpleair units are showing the air is the cleanest it's been all year?

Because Purpleair sensors are only "Partical" sensors perhaps?
Regards Simon


Offline RXB2

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Re: Air Quality Sensors
« Reply #55 on: December 07, 2017, 10:59:12 AM »
Why is it that I can smell smoke but all the purpleair units are showing the air is the cleanest it's been all year?

I'll bet it says something about how sensitive the human sense of smell can be. Unless you're immediatly downwind of the fires you could have decent air since there seems to be a lot of air movement at the moment! Here's a Forest Service guide to estimating local air quality based on visibility.  https://www.fs.fed.us/pnw/pubs/pnw_gtr925.pdf

Offline Eno

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Re: Air Quality Sensors
« Reply #56 on: December 27, 2017, 06:08:11 PM »
But everything is working for now and hopefully it stays that way.

Yup, keep hoping, because if and when it goes offline, like mine is after 35 days of working, and nothing you do with router gets it back online, you'll be SOL.

December 28 update:  PurpleAir responded in a timely manner to my issue and resolved it with new firmware.
« Last Edit: December 28, 2017, 06:05:07 PM by Eno »

Offline torkelmj

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Re: Air Quality Sensors
« Reply #57 on: January 13, 2018, 04:49:09 AM »
...and now www.purpleair.com returns a 404 error. Hm.

Offline eliteweathernz

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Re: Air Quality Sensors
« Reply #58 on: January 13, 2018, 05:03:53 AM »
The sites down at the moment, apprently they reached there quota possibly on there servers or something.

Offline torkelmj

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Re: Air Quality Sensors
« Reply #59 on: January 13, 2018, 06:08:06 AM »
A 404 rather indicates a "not found" condition on whatever server they're using.

Offline Toxic

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Re: Air Quality Sensors
« Reply #60 on: January 13, 2018, 06:51:58 AM »
A 404 rather indicates a "not found" condition on whatever server they're using.

yep ports 21,80,443 are all up on their site, so i guess Apache,IIS has died.
Regards Simon


Offline mmorris

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Re: Air Quality Sensors
« Reply #61 on: February 16, 2018, 08:47:54 AM »
There seem to be another better improved ver there looking at the A Full-Featured Home Air Pollution Monitor: the AQY 1

https://www.wunderground.com/cat6/full-featured-home-air-pollution-monitor-aqy-1
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Offline Forever

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Re: Air Quality Sensors
« Reply #62 on: February 16, 2018, 09:13:27 AM »
It looks like a nice unit but a little out of my price range with it being over $1000.

Offline mmorris

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Re: Air Quality Sensors
« Reply #63 on: February 16, 2018, 09:42:15 AM »
Did someone say there are phone apps for the PurpleAir? If so what it called? My Search didn't turn up any good info which is mostly what happens..  :oops:
« Last Edit: February 16, 2018, 09:57:03 AM by mmorris »
>>Miles<<  By from Portage Lakes, OH.
Been using VWS since 1996 Ver# 14.01P43
Wireless Vantage Pro2Plus Serial Data Logger, Anemo Tran Kit
Win XP, Firefox, WXSIM, Cumulus, NexStorm, Yawcam, VVP, BadBlue Web server, Quake Catcher Net
Follow me on twitter
Vietnam era Veteran USAF bb loader
Quadruple Bypass survivor

Offline n3b

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Offline Toxic

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« Last Edit: February 16, 2018, 06:48:22 PM by Toxic »
Regards Simon


Offline Eno

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Re: Air Quality Sensors
« Reply #66 on: Yesterday at 08:52:51 PM »
Did someone say there are phone apps for the PurpleAir? If so what it called? My Search didn't turn up any good info which is mostly what happens..  :oops:
I honestly don't know how I got this PA app on my phone, but there it is. I had been looking at the PA map in a browser a lot at the time, and one day I just saw it there!
 [ You are not allowed to view attachments ]
« Last Edit: Yesterday at 09:04:26 PM by Eno »

Offline Forever

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Re: Air Quality Sensors
« Reply #67 on: Yesterday at 10:51:34 PM »
I think that is just a shortcut to the website.