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WMR928 Anemometer transmitter

Discussion specific to Oregon Scientific weather stations
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laulau
Posts: 678
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Weather Station: WeatherDuino Pro2
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Location: Meyenheim, Alsace, FR
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WMR928 Anemometer transmitter

Post by laulau »

Hi,
This morning my anemometer transmitter gave up :(
Looking for spare part.
I will be interested if someone owns an unused STR938.
Many thanks
Laurent

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laulau
Posts: 678
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Weather Station: WeatherDuino Pro2
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Re: WMR928 Anemometer transmitter

Post by laulau »

Hi,
Does anyone know if the transmitter is supposed to send data (red led blink) without the anemometer connected?
When i took the transmitter down the red led was always on. Since i made a little cleaning no more sign of life :(

Thanks
Laurent

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laulau
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Weather Station: WeatherDuino Pro2
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Re: WMR928 Anemometer transmitter

Post by laulau »

It seems that finding a replacement is not possible. :cry:
So i have to repair it :groan:
Is there someone who has information on the functioning of the anemometer?
Laurent

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gwheelo
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Re: WMR928 Anemometer transmitter

Post by gwheelo »

Have you tried the obvious - tried a 'reset" , new batteries, clean battery contacts, substitute nicad from another transmitter (nicad may have a short).
When everything is functioning you should see the red light blink shortly after inserting batteries and then a blink on scheduled transmit. I think the anometer must be plugged into the transmitter to work so check the cable for nicks and breaks and clean the contacts. All things I am sure you have done. If all fails get a WMR88 or 88A. Inexpensive and at least it will be new. I am running a WMR968 for wind data and a WMR-88 for all the rest. That means for me running two instances of Cumulus and cherry picking the required data. It works for me!

gwheelo
http://www.wheelocknet.net/medes_cam/medes_gauges.html
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laulau
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Re: WMR928 Anemometer transmitter

Post by laulau »

The RJ12 connector is partially oxidized and also some copper pads of the circuit!
I have to replace the connector and and make some connections with wires.
I haven't yet looked at the connector of the anemometer that is still on the roof.
Laurent

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gwheelo
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Re: WMR928 Anemometer transmitter

Post by gwheelo »

anemometer that is still on the roof
I hate that part!

gwheelo
wheelocknet.net
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laulau
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Re: WMR928 Anemometer transmitter

Post by laulau »

Reparations done and transmitting again :D
No wind at the moment to be sure ALL is working :oops:

Just have to fit it in the right position again (not my favorite place on the roof) :roll:
I'll do that later; this week end if it's not too windy :lol:

What should i do to prevent this happening again ?
Laurent

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beeman
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Re: WMR928 Anemometer transmitter

Post by beeman »

Hi Laurent,
I too have a WMR928 but my rain gauge has packed up. Similar to yours, the red light is on all the time. I think the light should only flash when it is transmitting data.

Did you find a specific thing wrong or was it just a general clean up & replace the RJ12 that worked?

Alkaline batteries replaced but the 3.6v NiMh seem to be difficult to obtain.
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laulau
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Re: WMR928 Anemometer transmitter

Post by laulau »

Yes, the cleaning and the replacement of the oxidised RJ12 does the trick.
Laurent

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