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Davis Instruments Weather Stations / Re: Is it possible to restore SHT31 humidity sensor
« Last post by zoomx on Today at 10:12:36 AM »
Quote from: CW7491 on September 18, 2023, 03:01:33 PM
Yes, temperature performance is very good. These Sensirion sensors have a heater like many high end sensors from Vaisala etc and Sensirion has begun to advertise their use to help prevent this “creep”. Unfortunately this brings in power requirements and obviously complicates the temperature measurement. I noticed this is one of the reasons the NWS uses two sensors.
Reply after quite a year!
Reading the datasheet you can see that the SHT3x series have a heater but it is used only to check if the sensor is working or not, it should read some degrees over.
Instead the new SHT4x series have an heater intended to restore the humidity sensor. But the heating is on command so if this command is not sent by the firmware in the electronics no heater.

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Personal Weather Station Links / Re: Nimbus MMTS, Davis 7714, Davis DIY FARS compair
« Last post by ValentineWeather on Today at 09:32:50 AM »
I've got a spare 25' SHT-31, and may try to feed it up though the mounting pipe. It may go on its own, but may not. If not, have to find something flexible to guide it.
Really don't want to open the shield up if I don't have to. You can see the Nimbus sensor is located at the bottom of the shield and offset to the side. Need to plug that PVC hole anyway to prevent bugs from entering.

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Ambient Weather and Ecowitt and other Fine Offset clones / Re: new firmware for WS80: v1.2.8
« Last post by Gyvate on Today at 09:12:06 AM »
Quote from: Platokidd on Today at 08:27:45 AM
Be interesting to know more details of what was done to "Optimize wind speed measurement".
for me would be more interesting to know, what was improved  8-)
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Ambient Weather and Ecowitt and other Fine Offset clones / Re: new firmware for WS80: v1.2.8
« Last post by Platokidd on Today at 08:27:45 AM »
Upgraded the ws80 to v1.2.8. Calibrated the ws80 in open space in my office without any air movement. Use my Hp2560 and ws2000 live view to confirm.

Can't say I notice any difference in the wind readings as of yet.

Be interesting to know more details of what was done to "Optimize wind speed measurement".

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Personal Weather Station Links / Re: Nimbus MMTS, Davis 7714, Davis DIY FARS compair
« Last post by CW7491 on Today at 07:48:38 AM »
Thanks. I thought someone else might be making them now. From what I can tell, Sensor Instruments Co has been defunct for quite some time.
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Personal Weather Station Links / Re: Nimbus MMTS, Davis 7714, Davis DIY FARS compair
« Last post by ValentineWeather on Today at 07:15:08 AM »
SENSOR INSTRUMENTS CO., INC. inside the manual.

https://www.weather.gov/media/coop/NIMBUS_OperatingManual_21July2000%20(1).pdf
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Personal Weather Station Links / Re: Need help adding some links to my website
« Last post by Adrian23 on Today at 06:55:16 AM »
Quote from: swright1957 on Today at 06:12:54 AM
As you are using Cumulus MX then it shouldn't be a problem but I would look on the cumulus forum for more info on this.  Sorry I dont use CumulusMX I use WD

Sent you a pm
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Personal Weather Station Links / Re: Need help adding some links to my website
« Last post by swright1957 on Today at 06:12:54 AM »
As you are using Cumulus MX then it shouldn't be a problem but I would look on the cumulus forum for more info on this.  Sorry I dont use CumulusMX I use WD
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Personal Weather Station Links / Re: Nimbus MMTS, Davis 7714, Davis DIY FARS compair
« Last post by CW7491 on Yesterday at 11:17:51 PM »
Also, does your Nimbus say who manufactures those displays these days?
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Ambient Weather and Ecowitt and other Fine Offset clones / Re: Advice for weather station
« Last post by BenjaminPratt on Yesterday at 09:44:50 PM »
If you're focusing on monitoring temperature and air quality in multiple rooms and outdoor temperatures, you might want to consider checking out weather stations. They often offer customizable sensors and can be more cost-effective than buying individual sensors and consoles.
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