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  • November 28, 2018 at 9:20 pm in reply to: A3 Ozone flat line (almost) #6290
    uRADMonitor
    Keymaster

    I continued the discussions with the sensor manufacturer. Here are some additional details:

    If the ambient ozone gas concentration is less than 200ppb then the sensors will have no value change.

    That is what we get when we see constant values that are just being repeated, usually the 50ppb line.

    its detection range is 200ppb–10ppm normally

    What this means is we cannot see the fine fluctuations in normal environmental conditions, instead the sensor will react to higher values only.

    if the ozone concentration is less than 200ppb the sensor cannot read it

    November 25, 2018 at 6:01 pm in reply to: Model A3 Wifi password length #6288
    uRADMonitor
    Keymaster

    Your router password is too long, stock firmware takes only 20characters max. Please use a shorter password.

    November 18, 2018 at 11:30 pm in reply to: Beeping? what is it? #6286
    uRADMonitor
    Keymaster

    Unit set to mute, however you might need to do a firmware update too. First, let me know if the beeps stopped or not.

    November 10, 2018 at 4:54 pm in reply to: A3 – Stability and WIFI issue #6281
    uRADMonitor
    Keymaster

    Hi Matthias,

    To prevent reboots, try to provide a stronger Wifi signal for the unit to connect to.

    The default hotspot is left on intentionally, so you can re-configure it anytime you need. But I get your point. Two fixes here:
    – on newer firmware, the configuration screen doesn’t show the password in clear text
    – on a firmware variant you can choose an option to disable the internal hotspot, a few seconds after reboot. So it gives you the chance to reconfigure it when needed, then the hotspot is turn off.

    Both would require a firmware update. Not complicated at all. Interested in going this route?

    November 6, 2018 at 8:58 pm in reply to: Beeping? what is it? #6278
    uRADMonitor
    Keymaster

    Hi @arnljot, how is the unit now?

    I see it has a high uptime, so no recent resets, Uptime: 166741s

    November 6, 2018 at 8:56 pm in reply to: New A3 – Temperature readings too high #6277
    uRADMonitor
    Keymaster

    Temperature compensation offset changed to -2.4 . Let’s see how this goes.

    November 6, 2018 at 8:52 pm in reply to: System beep #6276
    uRADMonitor
    Keymaster

    Hi @a01 and @weaknerve , both units set to go to mute. Please confirm.

    October 25, 2018 at 5:53 pm in reply to: System beep #6228
    uRADMonitor
    Keymaster

    Hello @andreas, beep command has been issued for your ID, it will get muted the first time it connects. There were some changes being made on the server side, this is why all the units rebooted. Now we’re on a bigger, faster server. Had to do that to cope with the increased traffic.


    @wolferl     yes , you are right. Hopefully we’ll see that soon.

    October 16, 2018 at 9:29 am in reply to: A3 Ozone flat line (almost) #6165
    uRADMonitor
    Keymaster

    Hello @Baskin, I raised this question with the manufacturer of the Ozone sensor. After passing them all relevant info, I finally receive their input:

    As checked with our engineers, it seems that the ambient air does not have too much O3 concentration.
    If actual ozone concentration is very small, then ZE25-O3 may have output value for 20ppb or 50ppb.
    The value will increase as ozone concentration increases.

    BTW, you can breathe a breath at the sensor, and check whether ZE25-O3 value will change or not.

    Thanks
    Radu

    October 13, 2018 at 1:48 pm in reply to: Changing the coordinates #6135
    uRADMonitor
    Keymaster

    Fixed! Thanks

    October 10, 2018 at 8:11 am in reply to: Telegram alerts announcement channel #6125
    uRADMonitor
    Keymaster

    That has been fixed. Please try again

    October 10, 2018 at 8:05 am in reply to: Unit 8200007C high radiation #6124
    uRADMonitor
    Keymaster

    I messaged the owner but failed to get a reply so far. I suspect a technical issue, perhaps something related to the geiger tube.

    Definitely we need some better communication tools for the community.

    Will let you know as soon as I have news.

    October 7, 2018 at 4:51 pm in reply to: Telegram alerts announcement channel #6110
    uRADMonitor
    Keymaster

    This is amazing! Would you post a quick article about this on the blog?

    October 7, 2018 at 4:50 pm in reply to: Firmware upgrade #6109
    uRADMonitor
    Keymaster

    Send me an email and please include your unit’s details. I will compile it for you and mail back.

    October 4, 2018 at 8:47 pm in reply to: New A3 sensor accuracy #6098
    uRADMonitor
    Keymaster

    The sensor used in the A3 is either the BME680 or the BME280 from Bosch. These are high spec sensors, I would expect very good linearity.

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