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Author Topic: WMR200 Barometer problems  (Read 1160 times)
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stevebrtx
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« on: October 20, 2009, 08:36:49 AM »

Just got the new 200 to replace the 100 and it came online fairly easily, but the barometer section runs for a few hours then shows LLL on the screen and in VWS it shows 2.54 (calibration without offset) and the only way to get it back on line it to do a total RESET. In the Communications section of VWS it shows a good connection, but I can't see anything in the manual that tells what LLL means.

Also the ALT is flashing, I've set the altitude, but it continues to flash, any thoughts?
Thanks
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sam2004gp
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« Reply #1 on: October 20, 2009, 08:56:25 AM »

Without having a WMR200.  Let me take a stab at it anyways.  The LLL means the data sent to the sensor is below designed limits.  If this is showing on the console, then there is nothing VWS can do about it. So don't worry about VWS at this point, it will come back in "specs" once you get the Baro. reading fixed.  It most likely means your sensor is dead for that reading.  This can be caused by a defective sending unit or low batteries.  So perhaps I would replace all batteries first in the units first.  Another thing to consider is that your console may be receiving interference or another sensor in the neighborhood, and it is having a hard time determining a valid reading.  You have to slowly eliminate one item at a time, until you find the culprit.  Sometimes this can be very frustrating.

My personal bet, is it is either low batteries or a bad sensor.  The console of most weather stations are not usually the culprit.  As for your ALT flashing error.  It may be the fact that the Baro. number does not jive so, just a wild guess on my part.  I am sure someone else will chime in with more knowledge of that weather station than what I have.
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SAM --->>> http://www.mountcrawfordweather.org
OS WMR-968 with a Dedicated PWS Weather Computer running VWS v13.01 p09

stevebrtx
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« Reply #2 on: October 20, 2009, 02:01:21 PM »

Well, the oddessy continues, I Reset this morning, went off to Guadalajara and when I got back it's still reading, but it's low at 25.10. I reset again and left the altitude correction at 0 even though we're at 5,000 ft, that stopped the flashing ALT note. I had a 5.02 offset in VWS with the 100 and so entered it again, it shows on the graph and the gauge on the web page, but the broadcast jpg still shows 25.10 and it doesn't seem anything I do changes that.

The unit is only 2 days old, but early this morning I tried new batts, not the problem, the barometric sensor is internal to the 200, so if it's failed in some way I'm screwed as I brought this down from TX to middle MX and returning it or getting any kind of service is basically impossible.

I swear yesterday when I put in the altitude reading it was reading out at around 30.00 which is what I'd expect, but not today.

Later:
OK, OK I get the message
I forget that everything in MX takes longer, so I went off to do other things, came back about 20 minutes later and it's now showing 30.15, we'll see if the problems are operator or WMS200, although dropping out after a few hours wasn't anything I did.

Later:
Stuck on 30.15 for over 2 hours, seems unlikely, but if it's reading and responding to Alt adjustment seems like it's working. Maybe some cerveza will make it better?

A day later:
The 200 appears to be sensitive to other wireless equipment in near proximity. I set it in the same exact place the 100 has been running for 2 years and it appears the barometer didn't like it. I tried a couple of places a few feet away and looks like that might be the solution, I don't like it and it's awkward, but whatever it takes.
« Last Edit: October 21, 2009, 08:33:52 PM by stevebrtx » Logged

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