Author Topic: very high pressure (Read 6608 times)

tonyva · « **on:** April 08, 2009, 05:00:41 PM »

My VP2 pressure seems to be stuck on 1079hpa, the pressure should be around 1012. 3 days ago I updated my firmware to 1.82, could that have caused the problem?

Thanks
Tony

andro700 · « **Reply #1 on:** April 08, 2009, 05:49:39 PM »

Did you check your console settings such as altitude. Make sure all your setting are correct.

Chuck

WeatherBeacon · « **Reply #2 on:** April 08, 2009, 06:04:16 PM »

Welcome to the forum, Tony!

Is pressure the only parameter that's stuck?

tonyva · « **Reply #3 on:** April 08, 2009, 07:50:09 PM »

Thank you

I checked altitude and other settings on console and they seem OK, nothing else is stuck. Maybe I need to power off and on the console?

Weather Display · « **Reply #4 on:** April 08, 2009, 08:32:06 PM »

if the console is running on batteries, then I would suggest they need replacing

WeatherBeacon · « **Reply #5 on:** April 08, 2009, 09:30:03 PM »

Quote from: tonyva on April 08, 2009, 07:50:09 PM

Thank you

I checked altitude and other settings on console and they seem OK, nothing else is stuck. Maybe I need to power off and on the console?

That was my thought, especially inasmuch as you had updated the firmware. Did you follow the instructions for restarting the console when you installed the firmware? I don't recall the procedure, but it's explained in the firmware update instructions.

If the other weather parameters are updating, you might just shut down and restart the console (follow the instructions in the console user guide).

tonyva · « **Reply #6 on:** April 08, 2009, 10:23:11 PM »

Console runs on mains, after firmware upgrade the console rebooted according to instructions.

The pressure at noon was 1079 and is dropping steadily, at 2pm it's 923

WeatherBeacon · « **Reply #7 on:** April 08, 2009, 11:00:42 PM »

Quote from: tonyva on April 08, 2009, 10:23:11 PM

Console runs on mains, after firmware upgrade the console rebooted according to instructions.

The pressure at noon was 1079 and is dropping steadily, at 2pm it's 923

That's 3mb from a Cat5 hurricane.

Looking at the graphs on your web site, all the other variables look well behaved. Only the pressure goes berserk, apparently when you upgraded the firmware.

Have you tried to reset the console again?

tonyva · « **Reply #8 on:** April 09, 2009, 12:11:01 AM »

I have just reset console and will see how that works.

WeatherBeacon · « **Reply #9 on:** April 09, 2009, 10:19:15 AM »

Tony:

Hm. Your pressure spiked to 1079.4 hPa again and plateaued there.

I don't know if you've ever said, so I'll ask: Does the VP console say the pressure is 1079.4 hPa?

According to the specs sheet of the VP manual, the pressure range of the VP is min: 800 hPa to max: 1080 hPa (that's probably rounded to 1080). So it seems that your barometer thinks the pressure is greater than 1080 hPa. My thoughts are that either: 1) your pressure sensor is faulty, or 2) you have a wrong setting somewhere.

I know someone else already asked, but have you double checked that your elevation setting in your VP console is correct? If that's incorrect, it will mess up the pressure readings.

If the elevation is set correctly, then I'd check to make sure you didn't calibrate (set an offset for) the barometric pressure on your VP console. It's described on page 29 of my VP-1 "Console Manual" under "Calibrating Barometric Pressure". Make sure you didn't "calibrate" the barometric pressure.

Something else that's bizarre is that on your WU History page, your current pressure appears as 36538.3 hPa! Ironically, it appears to be 1079.4 hPa on the graph on the same page. I don't know why it wouldn't show as 1079.4 there, too. I can't explain that.

I'd say double check your elevation setting in the VP console. I believe that is the only setting that you really need for pressure. Don't define any other pressure/barometer offset in your WeatherDisplay program.

Kevin...

EDIT: Wait a minute! On your WU History page, I changed units to English, and then in the table the pressure shows 1079.1 inches! That's too close to 1079.4 to be a coincidence. Sounds like there's a problem with pressure units.

Ah! I checked: 1079 inches of Hg equals 36539 hPa. So that's where the goofy value in the table on your WU History page came from. There seems to be a units problem (for pressure). Check your set up in your VP console again, particularly for pressure and elevation, and also look at the units.

Why don't you also close and then restart your weather software? Looks like you're using WeatherDisplay.

WeatherBeacon · « **Reply #10 on:** April 09, 2009, 11:02:47 AM »

Ahh! Something is goofed up. I went back to your WU History page. The table shows -13.4^oC but the graph shows a little more than +7^oC (same as your home page).

On the WU History page, when I change units to English, the table shows +7.8^oF but the graph shows about 46^oF. But I don't know if this is a problem with your VP station, your VP console, your VP firmware, WeatherDisplay, your WU History web page, or with some settings somewhere.

Somehow units are getting messed up.

tomcj2 · « **Reply #11 on:** April 09, 2009, 01:24:32 PM »

Last fall I temporarily changed the pressure units from imperial to metric. It left bad data that I had to correct manually.

WeatherBeacon · « **Reply #12 on:** April 09, 2009, 01:57:44 PM »

Quote from: tomcj2 on April 09, 2009, 01:24:32 PM

Last fall I temporarily changed the pressure units from imperial to metric. It left bad data that I had to correct manually.

Yikes!

tonyva · « **Reply #13 on:** April 09, 2009, 04:07:00 PM »

Hi Kevin

I checked my elevation I am 10 meters above sea level and my console is set for 0010 meters. I have calibrated as you suggested and have set the pressure at 1024 which is the current pressure in our region at the moment.

I will wait and see how that goes in the next hour or 2.

If this fails should I go back to a previous version firmware? or maybe sensor is faulty (hope not, imported from States)

Thanks for help
Tony

WeatherBeacon · « **Reply #14 on:** April 09, 2009, 04:19:10 PM »

But I'm also wondering why the pressure and temperature units are convoluted on your WU History page (per my earlier response). Something's wrong with units...maybe in the set up?

tonyva · « **Reply #15 on:** April 10, 2009, 04:42:29 PM »

I do not know why WU history is displaying all that incorrect data because the WU for my station is fine
http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=INORTHLA6

My pressure has gone back up to 1079 and flat lining again since I re calibrated on console yesterday

tonyva · « **Reply #16 on:** April 12, 2009, 06:27:59 PM »

The pressure sensor must be faulty, I will get up on ladder and inspect ISS today

Tony

WeatherBeacon · « **Reply #17 on:** April 12, 2009, 06:39:24 PM »

Quote from: tonyva on April 12, 2009, 06:27:59 PM

The pressure sensor must be faulty, I will get up on ladder and inspect ISS today

Tony

Hi, Tony.

Yeah, that's what I've begun to think. You might just give Davis tech support a call and describe the problem to them and see what they suggest.

I had hoped that some others might chime in with ideas, but apparently no one else has any suggestions.

Regards,

Kevin...

mmorris · « **Reply #18 on:** April 12, 2009, 06:51:02 PM »

Don't think you need to get on the ladder the barometer sensor is in the console.

In your first post you don't sound like you are sure it was working before the firmware upgrade? So if it was working before the upgrade then there is your answer. Don't know if you can flash it again I would get the file again and make sure it wasn't corrupt, you never know.
Also when you flash you should reboot the computer before you flash and make sure nothing is running programs internet nothing that is going to interfere with anything while the flash is running,,

tonyva · « **Reply #19 on:** April 12, 2009, 08:28:35 PM »

I am sure the problem was not there before firmware upgrade, I have downloaded another copy of firmware and installed, rebooted PC as you suggested. Is it possible to get a previous version? could not find one on davisnet

Thanks
Tony

mmorris · « **Reply #20 on:** April 12, 2009, 09:24:34 PM »

Sorry Tony just spent sometime going through my backup image file which was from January (

got to get on the ball with a new backup) thinking I had one but the only one I have is on the weather computer and its is the same one you have.

Quote from: tonyva on April 12, 2009, 08:28:35 PM

I am sure the problem was not there before firmware upgrade, I have downloaded another copy of firmware and installed, rebooted PC as you suggested. Is it possible to get a previous version? could not find one on davisnet

Thanks
Tony

tonyva · « **Reply #21 on:** April 13, 2009, 05:09:03 PM »

I have done a hard reset and the barometer on the console has dashes now, I have tried to calibrate the barometer but console will not go into calibration mode.

Tony

dalecoy · « **Reply #22 on:** April 13, 2009, 07:07:57 PM »

Quote from: tonyva on April 12, 2009, 08:28:35 PM

I am sure the problem was not there before firmware upgrade, I have downloaded another copy of firmware and installed, rebooted PC as you suggested. Is it possible to get a previous version? could not find one on davisnet

Thanks
Tony

I don't recall what hardware you have, but for instance if it's VP2 wireless and you want the direct-from-pc firmware, then note that the latest version is at:

http://www.davisnet.com/support/weather/download/DirectFromPC_vp2_wireless_1_82.zip

So, you might look at:
http://www.davisnet.com/support/weather/download/DirectFromPC_vp2_wireless_1_80.zip
http://www.davisnet.com/support/weather/download/DirectFromPC_vp2_wireless_1_75a.zip

tonyva · « **Reply #23 on:** April 13, 2009, 08:04:16 PM »

I have the cabled 6162C, that's the firmware I would like for it

dalecoy · « **Reply #24 on:** April 13, 2009, 09:41:33 PM »

Quote from: tonyva on April 13, 2009, 08:04:16 PM

I have the cabled 6162C, that's the firmware I would like for it

It happens that I prefer the cabled version myself.

OK, easy enough to find. Look up the 1.82 firmware on the Davis site. It's

http://www.davisnet.com/support/weather/download/DirectFromPC_vp2_cabled_1_82.zip

(The easy way to get that is to right-click on the "download" link, and then select "copy link location", and paste that somewhere)

Now, look at the previous version numbers: 1.80 and 1.75a

http://www.davisnet.com/support/weather/download/DirectFromPC_vp2_cabled_1_80.zip
http://www.davisnet.com/support/weather/download/DirectFromPC_vp2_cabled_1_75a.zip

The above assumes that you are doing Direct From PC installation.

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Author Topic: very high pressure (Read 6608 times)