Category Archives: Weather Site

Davis 6410 Anemometer Reed & Bearing Replacement (2000 – 2013 version)

Davis 6410 Anemometer

25 October 17 my wind speed sensor failed after 9 years service, the symptom being that the wind speed is always at zero after checking the connection to the ISS is tight and the cable to the anemometer is not damaged.

This is the blog is how to replace the reed switch and test its operation, also while it was in bits, I thought I’d take the opportunity and replace the bearings as well.


Information Sources

Online sources of information relating to replacing the Davies 6410 reed switch –

Parts Used

Magnetic Reed Switch 10mm MKA-10110 100v 0.5A Russia £3.50 for 10 from eBay.

Metal Sheilded Bearing 0.125 x 0.375 x 0.156 Part R2zz £0.85 each from

Tools Required
  • Pliers
  • Sharp knife
  • Marker pen
  • Phillips screwdriver
  • 1.25mm or 0.05″ allen key
  • Soldering Iron & Solder
  • Magnifing Glass
  • Terminal Screwdriver
  • Glue gun (or similar adhesive)
  • Multimeter or battery & lamp.
Step 1

Remove the vane and wind speed cups to avoid damage.

Undo allen screw, if tight, use penetrating oil first, the screw does not need to come out.

Once the allen screw is loose, the vane is an interference fit, and with a little gentle force, pulls up revealing the potentiometers (pot) shaft.


The shaft is not ‘keyed’ but will have a mark where the allen screw tightened against, when you reassemble, use this to align the vane so the screw tightens in the same place.

direction shaft

I marked the shaft showing the allen screw mark, I also marked the body of the pot in relation to the housing so that when I reassemble everything is in the same position and the wind direction reading will not be out.


Step 2

Using the same allen key, undo the securing screw on the wind cups, once loose, the assembly slides off the shaft with little force.


Put the wind cups and vane in a safe place till later.

Removing the wind cups reveals the reed switch which can only be accessed by removing the pot.


Step 3

Breaking down the arm and releasing the cable, this is important when we come to remove the pot.

Undo the machine screw and slide this out, once the cable has been released from the in-built grips of the mounting bracket, the tube should slide out of the housing.


The cable inside the tube has a crude cable grip made from an off-cut of plastic hose, either use pliers or a wood screw in the center of the hose, and gently tease it out.


The next part is to slacken the two allen screws which hold the wind and direction body to the arm, once done, slide the arm down the cable to give you working room.


Step 4

Removing the pot, this is a push fit and held in place by hot melted indents, these need to be cut away with a sharp knife.



Once the indents have been cut away, the pot will pull out of the housing, NOTEthis is a tight fit, use pliers to hold onto the pot shaft and draw towards you, Warning – I pulled too hard and pulled wires off  the pot as their is not much slack in the wires from the reed switch, it’s not the end of the earth if you do though as I cut them off anyway!

Note red wire snaped as I pulled to hard removing pot.
Step 5

Remove the gunge from the rear of the pot and note which colour wires go where, the red and black fly lead go to the reed switch and these I cut, I also cut all wires to the pot and removed this so I could easily work on the reed switch and bearings.



Step 6

The reed switch is held in place with the same gunge (hot glue?) as is on the rear of the pot, due to aging it had gone brittle, using a terminal screwdriver it was possible to break this up from inside the housing body.


Once glue is removed, the reed switch assemble will slide out.


Step 7

Reed switch replacement, the reed didn’t appear to be visually damaged, only slight rusting. Testing with a meter and magnet, the reed flexed but no electrical contact was made, checks on the circuit board tracks and resistors were OK.


The zoomed pictures make things look easier to handle than they are, the picture below offers some scale.


New reed soldered into position with the contact leafs horizontal to the orientation of the PCB, I also replaced the Red and Black wires from the PCB with more flexible ones.


Once the reed switch excess wire was trimmed, sliding the PCB into the housing body and getting it flush broke the reed.


The cause was the reed needs sit,as flat as possible,inline with the PCB, I had used too much solder and this lifted the reed wires slightly off the PCB.

The picture below is the second attempt where I used minimal solder on the PCB pads and pressed the reed wires onto the pad before using a small amount of solder to connect to the pad. This seems to have worked and allows the PCB to slide into the housing and sit flush once the wires were trimmed.



After sliding  the reed switch in the body, I connected a multi-meter on continuity buzzer setting, sliding on the wind cups and spinning them, this should cause the buzzer to sound once on each revolution.

Once correct operation is proved, remove the wind cups and reed switch assembly, I sprayed the reed switch with a protective coating and put them in a safe place until later.


Step 7

Replace the wind shaft bearing, first the circlip needs removing and retaining for later use, once the clip is off, the shaft can be pushed into the housing.


The shaft and black cap can now be removed.


My model has the brass follower looking from the cup side, other pictures I’ve seen show this to be the bearing with the brass follower inside the body, I reassembled in the same order as I took apart.


To remove the bearing, I left the brass follower in  and used a terminal driver to go through the hole and using it at a slight angle, gently tap against the underside of the bearing, moving around the inside of the bearing and tapping to tease the bearing out of the housing.

The old bearing is in the bag and it is in good condition with only slight signs of rusting.


The new bearing simple pushed into the housing.

Step 8


  • Slide shaft into place and fit circlip, make sure the shaft spins freely, I applied a light oil to the brass follower only.
  • Slide the reed switch into place and making sure that it sits flush, after putting the bearing protective cap on and I then used hot melt glue from inside the housing to secure everything in place.
  • Checking that the cable is still threaded through the arm, pass the cable into the housing ready for soldering onto the back of the pot.
  • Once with wires are back in place, I sprayed a protective coating on the pot and pushed it back into the housing checking that the marks I made at the start are aligned.
  • I didn’t melt fix the pot, the protective costing will act as an adhesive.
  • The arm was then re-affixed and secured.
  • The arm cable grip was pushed back in, check that the fixing hole is clear for the machine screw when pushing the grip back in.
  • Fix vane back on to pot, aligning grub screw with marking on shaft.
  • Fix wind cups onto shaft.

I used a Glaxio Telecom Wall Box RJ11 which cost £2.69 from eBay as a breakout box for testing that the reed and directing pot are working:


My old 6410 is now refurbished and will be stored in the loft until the one in use packs up.

If you need any further information, please contact me.

Please follow and like us:

Davis Wind Speed Sensor Failed

25 October 17 @ 01:24 – Wind speed stopped recording,  when I noticed I checked all the accessible connections, but still no reading, can’t complain, after 9 years its not done to bad!

Reed Switch failed after 9 years, not too bad!

Detailed information on the Wind Sensor is here.

Ordered a new one from Scaled Instruments,  Gainesville, Florida, also I added a couple of other nice to have goodies:

Product Quantity Price
Davis 6462 – AeroCone w/Bird Spikes and Debris Screen With Davis logo 1 $24.50
Davis 7120.031 – Reed Switch for Tipping Bucket 1 $2.70
Davis 6410 – Anemometer for Vantage Pro2 & Vantage Pro 1 $105.00
Subtotal: $132.20
  • Sub Total – £158.69
  • Customs & VAT – £35.90
  • Total£194.59
New Davis 6401 installed 19 Nov 17

Delivery & Installation Progress

  • November 19, 2017 – Installed all tested and working.
  • November 16, 2017 – Tested new anemometer and wind. direction vane for operation before installation.
  • November 14, 2017, 2:00pm – Received and unpacked.
  • November 11, 2017, 10:33am – Paid Customs Charges and Handing fees of £35.90 to release for delivery.
  • November 9, 2017, 11:37 pm 
    Arrival at Post Office
    Your item has arrived at the delivering post office in UNITED KINGDOM at 11:37 pm on November 9, 2017.
  • November 9, 2017, 3:16 pm 
    Customs clearance processing complete
  • November 8, 2017, 11:07 pm 
    Held in Customs
  • November 3, 2017, 10:24 am 
  • November 1, 2017, 2:41 pm 
    Arrived at USPS Regional Facility
  • October 31, 2017, 12:28 am 
    Arrived at USPS Regional Facility
  • October 30, 2017, 4:05 pm 
    Departed Post Office
    ARCHER, FL 32618
  • October 29, 2017 
    Pre-Shipment Info Sent to USPS, USPS Awaiting Item
  • October 28, 2017 Placed Order


Please follow and like us:

Archive Weather Site Information

This is the original blog  on my weather station, the latest information is containained within the pages of this site via the WEATHER tab at the top of the page:

18 May 14 Really warm weather currently which is great timing for the PC to stop sending data! not sure what the problem is as it’s been running great for weeks. It looks like its a usb data related problem because if I disconnect the Davis Console mini usb and then plug it back in, data logging on the Weather Display software kicks in and all is well for about 4 hours, then it stops again, in case its something to do with the usb logging driver, I checked my version in device manager against the latest on the Silicon Labs web site, the web had a 2013 version which I have downloded and installed, everything looks good at the moment, so fingers crossed this has sorted it.

I have downloaded WordPress and use this for my blog, this can be accessed from here, their is a direct link in the menubar, this blog is a lot easier to update so this one will eventually stop being the latest blog news.

18 April 14 The main hiccup over the last few days has been due to Weather Underground making website changes, these changes have had an effect on the Saratoga Template that is widely used, fortunately Ken True is an accomplished expert in code and had made the required modifications to get the template back on track, the main issue was to do with forecasting, luckily Chatteris Weather has it’s own weather modeling software so the impact wasn’t as great for me as it was for others, the main thing is that the status quo has been returned.

Few changes this week, I’ve added a weather calculator and conversion script, this accessed from the ‘Useful Links’ page, from the menu bar I’ve added a Radio Player and an enhanced pollen chart, the original links for pollen maps within ‘Community Interest’ have been removed, another change has been the addition of an ‘On This Day’ page and the inclusion of a couple of widgets in the ‘Advisory & Alerts’ > ‘Weather Advisories’ for the Met Office and Flood Warnings.

10 April 14 Busy playing adding new scripts and moving items around on the menu bar, new additions have been the WeerstationLeuven template for displaying the output from the WXSIM weather modeling simulator program, also I have incorporated a Saratoga template which displays affiliated weather stations who freely broadcast their raw data for use by other programs.

I have also added a ‘goto’ button for long pages, clicking this takes you directly to the top of the page, saving constantly scrolling, I’m experimenting with scroll buttons from Dynamic Drive, and these can be seen on the Forecast & Advisories > Chatteris (Long) page.

Had my first spam using Capcha enabled contact form, the script from Mike Challis fortunatly has ip blocking, so this spam has been added, hopefully it will work!

4 April 14 WXSIM now reports wind speed in mph and their is an RSS icon on the home page to make subscription to the forecasts which are updated every 6 hours only a click away. The ‘Who’s-Online’ page now shows a mapped location of visitors and a 30 day history feature, as this script only became effective today, history is being built up from now. Changed my e-rice hosing package to Standard 3, this means an increase of connections from 3 to 5, the effect is that I will no longer have to turn off Nexstorm lightning reporting whilst I’m uploading which is good news.

Installed a second hard drive into the weather pc, using Acronis software I’m able to ‘mirror’ the ‘C’ drive and keep on top of backups, fingers crossed I’ll never have to need it!

31 March 14 Yet more tweaking of the site, added WXSIM weather forecasting programme and a ‘Who’s Online’ page, I’m in the process of using yet another brilliant Saratoga script to rss the weather forecast.

23 March 14 Been an eventful few days, the town has suffered power outages not only did this stop us going to the pub, but it also interrupted weather data from the station to the internet, all back on now though with no real glitches, the main additions to the site are:.

  • Newly registered and, these forward to, hopefully it will make remembering the stations name for access easier.
  • Added Twitter feed to the Weather Cam > Current View cam page, this will help me test that the feed is working and also help visitors to decide if it is something they would be interested in following.
  • Added radio propagation information and satellite tracking maps on the Space Weather page.
  • Sun and Moon – Sunlight Graph has been playing up, sometimes it works, other times it shows the dreaded red cross in the corner, currently its working as each time it stops I have to upload Sun48.png and jpmoon.png files again to the sites root directory, hopefully one of the experts on the weather forums can help me to fix it once and or all.
  • In Community Interest pages changed a few of the links, especially the one to UK Power after our power cuts!
  • In Useful Links I have added a number of links to scripts, without the time and effort of these gifted scripters, chatteris weather would not have got off the ground.
  • I have introduced a Warning Service, this will send an automated email to those who use the contact form and request it, the warning service page lists all the thresholds, this service also extends to thunderstorm notifications.
  • Stumbled across a download from Astrogenic Systems called SPARK.CLX, this allows legacy cell phones to view NexStorm lightning detection output, a link is on the Warning Service page, can’t see that many people using it as most mobiles can simply view the whole website which includes the sites lightning pages.
  • A Photograph gallery has been incorporated, this will be continue to be added to.
  • Contact Us form has been amended to included a drop-down selection menu box to help administer alert subscriptions.
  • Changed a tab to ‘Take a break’ from ‘Lottery’ as I’ve added a number of games.

2 March 14 Relocated solar sensor is performing well, one anomaly noted was that the Weather Display software predicts a solar curve based on the longitude and latitude of the weather station, and yet the solar sensors peak greater than this making me question the accuracy of either the prediction curve or sensor, it appears that the solar curve is derived from a cloud free day, what is happening to make the readings to peak past the predicted maximum in my case is solar reflections from broken clouds, this explanation may be of use if you are looking at the graph containing solar information and wonder why the discrepancy. Graphs can be found here, of accessed from the main home page of

Road Traffic pages have been added to, links to the Highways Agency and to Frixo for an alternative live traffic information pages.

Marine Traffic had an outage, this is now back online.

Status of lightning detection is now displayed on the header of all pages, this is a dynamic indicator, so I’ll have to see what effect it has on the page formatting when it picks up strikes within 50 miles which is the trigger for the script.

16 February 14 Camera relocated to the West side of the house, also the UV and Solar sensors have been mounted above the ridge line to give an uninterrupted view of the sky, certainly a huge improvement over where it was originally.

15 February 14 Chatteris station record winds of 50.1mph have been recorded today, this caused ‘The Lucky Parrot’ building in East Street to collapse and intermittent power outages.  Added a Marine Traffic tab to the site showing shipping zoomed to the Wash area, the map allows you to zoom out world wide, this page also gives the details of each of the icons when clicked on.

9 February 14 Made some minor additions and tweaks to the web site:

  • Added postscript after the countdown clock indicating the season leaving.
  • Added wxalltimehigh script this has been included in the ‘Almanac’ fly-out menu and list station records.
  • Included a script which will bring up an alert box on the home page of the site when any station record has been broken, I chose for the alert box not too be visible when no record has broken.
  • Menu bar items moved about to make it a bit more logical.

Glued the external sensor assembly together and the new pipework parts arrived from Harrison Plastics, everything is ready for installation once the winds abate.

7 February 14 Added a season countdown clock to the main home page, in the ‘Links’ section is a shortcut to the scripts author.

6 February 14 Added a RSS feed button to the home page, this feed will be updated when I add pages or make changes to any aspect of Chatteris Weather.

5 February 14 Weather Buoys page added and some minor tweaks done. UV and Solar sensors have been mounted in a new housing ready for mounting on the same tube that supports the Boltek lightning sensor.

2 February 14 Disconnected the weather station to allow me to run and connect cables ready to move the UV and Solar sensors, these have been removed from the system and will remain so for the next couple of weeks until I can get the ladder out and mount them higher, no real point leaving them connected as the readings are quite inaccurate, during the connection process I knocked the rain gauge, so for today it indicated 0.2mm of rain which is not the case, I will try and get this removed from my stations stats, so please note that it didn’t rain on the 2nd!

1 February 14 Added a few things today, to highlight what has been done since peoples last visit, you may see a flashing ‘New’ icon, these will stay next to the relevant tab for 5 days before being removed, new items are the CWOP quality status page, I have been exporting data for quite a while and I’ve mailed them about getting registered so that my data can be quality checked if it’s possible. Raw data is a new fly out tab, this tabulates everything the weather station sends out and will allow me and others to check if the information leaving the weather computer is current.

Weather Map Live went on line yesterday, I’m still playing with this, so be patient with me if at times it seems all over the place, I will remove the message under the map when I’m happy :-).

31 January 14 Installed Weather Extremes tab, this is a great script from Relay Weather which shows maximum and minimum temperature and rainfall, I have down loaded a few scripts from his site and aim to get these working over the next few days.

29 January 14 Lots added to the site in last few weeks, some of them are quite subtle such as the animated forecast icons and the wind rose changing colour making it easier to read, also a few pages now automatically go full screen to match the page they display.

Recent pages added to the site have been the flight radar showing the aircraft overhead, where they are going, where they have come from, clicking on the airport icons displays arrival times. The tide page has been improved to show a tide clock for Hunstanton (we love taking the kids there, especially when the tides out so the dog can have a run), other improvements have been a new lightning page and rehashed VP2 console which mimics the display of the main controller.

One other thing I have done since the last post was to advertise that Chatteris weather exists in ‘Shape your place’, so pass the word! Till next time.

11 January 14 Added lots of functions to the site, these include RRS display box which automatically displays weather warnings issued by UK Met Office, a facility for mobile users to view the weather data in format suitable for their device ( and finally webcam time lapse options.

I have also linked Twitter outputs from the station to Facebook.

5 January 14 Work is progressing well using the Saratoga template, the advice from WXForum has been indispensable, as a novice with regard to web code, I would have been lost without the help of the experts on the forum, the other place I lurk is the Weather Display Forum, again, an invaluable source of information.

I have changed the logo from a fat man as I need to lose some weight this year, so it got changed to a picture of the wind turbine farm, just off High Fen Straight Drove (A141), the picture was taken on the 3 January 14.

28 December 13 Well finally took the plunge and decided to download a website template from Saratoga (, the new site is accessed via the normal address of, this site is linked back from the home page of the Saratoga template, this site can be accessed directly by entering

I will keep this site updated as things develop, so I have not abandoned here that’s for sure.

Hope you have a great 2014, all the best, Ian.

7 December 13 High winds and tides on the 5th December caused localised flooding on the Norfolk coast, worst combination of events in 60 years, winds recorded in Chatteris measured gusts of 46 mph.

21 November 13 Added pictures of my power transfer switch and intake in case of utility power failure, over the last few days I have been setting up another PC after a hard drive failure, everything is going ok apart from the Comms port on the Virtual Serial programm doesn’t work and also WeatherLink keeps dropping out, hopefully this will be easy to sort out with the help of the forums.

20 October 13 Well it’s been a while, so I’ll start with the Blitzortung problem display, this needed a new one, I found another company which was cheaper than Mouser, so it cost £26 to replace and it was now all back to normal, the Boltek lightning detector had a damaged RS232 circuit, the unit was returned to the manufacture via Skyview and they repaired it free of charge which was superb customer service, I use a laptop at the moment which hasn’t a serial port and I can’t seen to get a USB to Serial converter working, so I’ll be transferring everything back to a PC soon so I can get the lightning map on Weather Display working again.

1 September 13 Well lots has happened since my last update, the main one being that the Blitzortung lightning detector, boltek lightning detector and external camera all stopped working, the only thing they all had in common was a earth I fitted a week or two before, problem started when a circuit breaker operated in the night, the UPS kicked in but the batteries exhausted and power was lost to the system, on power up next to nothing worked, to compound this my weather PC hard drive did indeed pack up.

I replaced the STDiscovery board on the Blitzortung and it came back, although the display is damaged and only shows half the information, the other thing is that the signal has gone really noisy on the red channel, not sure why but at least it’s working.

I have got the weather programs on a laptop, so that’s what I’m using at the moment, the loss of camera feed was the external balun stopping working, so we are nearly there.

Transferred programs before the hard drive failure so I’m in the process of getting everything back together, it’s been an arse of a last few weeks to be honest 🙁

24 August 13 Did a few jobs on the Blitzortung system today, first job was to flash a new version of firmware into the controller, the system is pretty cool in that it tells you on the LCD display that a newer version is available, you also get a message when you login to the controller, I was a bit nervous at first about doing this, but I’ve done it 3 times now and it’s really straight forward and as long as it keeps working afterwards, I’m happy.

I was in the loft, yet again, installing a longer shielded cable for the lightning amplifier so I can move it away from where my computers are, I could only move it 5 meters, but I can now ramp the gain up slightly higher than before without going into the dreaded interference mode.

My eBay 10 meter USB extension lead came today, this is used to connect my UPS monitoring software to the PC running the Weather Station stuff, the cable was a bit of a bitch to get in but I got their in the end with a bit of help from the wife, just got to figure out how I can get it to automatically shut the PC off before the UPS batteries fail.

20 August 13 Adding more information and updating the site, installed an energy monitor from Amazon, at £8.00 is great value, my total configuration measures 315 watts, when the monitors are off it drops to a normal running value of 280 watts, could do with getting it lower but that will involve getting a different PC, so it will stay as it is for now.

18 August 13 Busy few days, the main job was to try and get the weather station PC back up and running fully, I had not been able to update the webcam since the lightning strike damaged the mother boards USB ports, the Video card arrived (Hauppauge PCI) and was fitted OK, bit of hassle getting the drivers, but’s it’s ok now, a major bonus was the PCI mounted USB card, this worked straight away and so I could simple plug the Davis USP lead in, and I was back in business.

While I was waiting for the bits I have mounted the Blitzortung antenna and GPS in the loft and rewired things so that everything related to my weather station is via a UPS complete with new batteries, updating all the web pages now to reflect the changes and add so pictures, I just love this hobby, but boy it can be frustrating!.

12 August 13 Well what a nightmare! Decided to move the Davis console from free standing on my desk, to mounting on the wall, all went well apart from I couldn’t get it working again, checked and double checked everything (I even learnt their was an LED on the ISS which I have never noticed before), anyway thanks to all the guys on WXForum who helped, it turned out to be a dodgy connection on my patch panel, and to further confuse me, as I was fault finding, the lid of the ISS caused the plug to the console to not make a really good connection when the lid was slid down, I had to make sure the wire was in the groove to the side of the board.  Luckily I’m back on air so to speak, pheww never again.

6 August 13  Done a few things this week, I’ve put an earth rod next to the weather station and earthed the cable containment and camera, pictures to follow, the other main things is to start construction of the lightning detector, I posted for the first time ever a couple of videos on YouTube, let me know if you like them or not!

My other new adventure was that of Twitter, the link is at the bottom of the main page and Weather Display will send from 07:00 to 19:00 at 2 hour intervals current weather conditions in Chatteris, again let me know what you think.

August 13 Turns out it was the KWorld weather cam video capture USB device that damaged the mother boards USB ports as it also has given up the ghost, looking at the last image transmitted to Weather Display Live it was damaged at around 03.40 on the 23 July 13, must admit to not hearing a thing as we were in Gran Camera 🙂

Ordered from eBay a PCI video card for £2.99, so I’ll have to see how that performs, (if I had the money I’d use media converted to fiber and separate the PC from any external influence, well apart from power of course)

30 July 13    Just got back from holiday to find we had missed huge lightning storms and a couple of power outages, not sure which to blame but the weather station PC USB ports no longer work and hence the web site was not being updated, I’m up and running using my office pc to ‘back feed’ the weather PC using VP Virtual and running weather display in IP mode.

Ordered another HP second hand pc with a lower spec, and I’ll butcher the hard drive and RAM out of my original station to get back up and running fully, one good thing is that the Blitzortung kit has arrived as have the parts to put the weather PC on the main UPS (bit late now grrrrr).

21 July 13    Added a site map as I’m new to this and the pages are growing all over the place and if I don’t know where stuff is, other won’t have much of a chance either.

20 July 13    Finally sorted the problem of my host server filling up with time stamped images doing the following:

  • Weather Display – Control Panel – Web Files/Web Page Real Time FTP/WDL – Time Stamped File Setup – untick ‘Upload the latest time stamped jpeg web cam file every minute’.
  • Weather Display – Control Panel – Web Files/Web Page Real Time FTP/WDL – Animated Web Cam Images Setup – untick ‘Still upload the normal web cam image (at the web cam upload times)’.

Revolver Map detected my first visitor apart from me!

19 July 13        Fighting to get the webcam to update without filling the host server with time stamped images, working on it but Weather Display has so many settings it can be a bit confusing.

  • Ordered my Blitzortung lightning detector kit today, so that should be a nice project to construct and get working.
  • Installed Revolver Map, it’s out of interest, I won’t get hung up if it’s only ever me who checks it out 🙂

14 July 13       I’m using Expression 4 which is free download from the internet, and it’s getting easier the more I do. I have added quite a lot of pictures and links today as I move down the Configuration schematic filling in the detail as I go.

11 July 13    Managed to work out using iFrames how to embed Weather Display Live into the main page, had an issue where Weather Display wasn’t updating the web cam images which was really frustrating, this was resolved by re-entering the settings, not sure why it stopped working, but it’s back now, this means that the webcam image is uploaded every 5 minutes with the display auto-refreshing every 2 minutes, I will be posting up screen grabs of my setup as it may be of use.

Please follow and like us:

GoDaddy Data Migration Fail


If you have a weather site using Saratoga and Leuven scripts and are considering moving server from North America to European servers….DON’T DO IT!!!!

The story started on 15 Oct 17, looking through cPanel on my GoDaddy site, it suggested that speed might be increased by moving to a server nearer to my location, this meant moving data from North America to Europe, as the transfer was free, what did I have to lose.

The data migration took 3 hours on 16 Oct 17, filled with high expectations that my site would load super fast, I clicked on and waited, and waited and waited, the site took nearly a minute to load.

I rang GoDaddy service desk and spoke to an assistant who suggested it was due to the SSL certificate needing to be rekeyed on the new server and he sent me the details on how to do it, being nervous of breaking the site even more, I called back and they said they can rekey the certificate for £100 in 10 days time, I declined.

A great friend came round and together we rekeyed the SSL certificate, guess what,…..nothing changed!

I posted on WXForum and started this WXForum Topic , it turns out that their is a known issue with European servers and the only way to resolve it is to go back to North American server.

So, on the 23 Oct 17 after paying £19.20, my data was once again whistling over the big pond, and this time it worked 🙂

The moral of the story is that if it isn’t broken, don’t try and fix it, the second moral is don’t move GoDaddy servers to other GoDaddy servers unless you want a world of pain.

Please follow and like us:

Davis FARS Upgrade to a Monitored PC Fan

Link to original Davis Fan Motor change

When the original Davis FARS motor failed I installed a new motor and kept back some spare motors, waiting for the inevitable motor failure to occur, reading online, changing from the Davis Fan to a PC varient made a lot of sense and not only is the life of motor excellent, but it is possible to monitor the motors output for operation.

I was interested to know the existing Davis fans air flow, mine was running at 2.4vDC and showed 9.7m/s:

The PC fan I bought was a Noctura NF-R8 redux -1800 PWM for £9.99 of eBay.

With the David FARS removed, the existing fan assembly slides out of the housing as a complete fan & surround, the hole left will take the 80 x 80mm fan with only a very minor filing of the fan case body to make it slide into the body of the FARS.

No modifications are made to the existing FARS body allowing reversion back to the existing fan if I wish (can’t think why, but you never know!).

To form a seal around the gaps, I used self adhesive door/window strip seal.

The finished fan after the seal is applied and checking that the fan is sucking, rather than blowing:

The oringinal fan ran on 2.4v, I replaced the voltage regulators fixed value resistor for the correct one to give 11.54vDC output and this feeds the motor and the motor monitoring Tacho.

The air flow of the PC fan when installed and connected was 5.5m/s, this is less than the original davis fan, but this is still better than static air within the sensing chamber.

The Davis weather station I have is the wired version, and I used Cat5e cable rather than the supplied 4 core cable from the ISS to the console, using the Cat5e unused cores, I fed the supply voltage to the fan and the Tacho pulse into the house where they are connected to a 52mm (2″) counter tachometer guage RPM, this was bought off eBay for £6.70 + £1.69 postage.

Tacho installed in the equipment cabinet:

The PC fan connections are:

  • Black – Negative 12v
  • Yellow – Positive 12v
  • Green – Tacho Pulse
  • Blue – PWM (Not Used)

The Tacho is set for a 4 cyclinder engine using a switch on the back of the unit, with the fan running the backlit RPM display is showing just under 1000RPM (reading slightly low due to voltage drop introducd by the distance from the ISS to the end point), to the left of the Tacho is my Meteobridge Pro  weather station server to the internet.

The motor is guaranteed for 6 years, replacement will be very easy and I’m able to remotley monitor that the fan is functioning, all for less than £20.


16 September 2018, after 14 months continuous use, the motor failed, not even close to 6 years!!

I wrote to Noctua who are based in Austria and after asking me to perform some basic fault finding and requesting the fans data markings, agreed to send me a replacement fan, I in return was asked to send then a picture of the faulty fan with some of the blades broken off when the new one arrives.

While this correspondence was going on I bought a new fan off eBay for £12.50 which was installed on 22 Sept 18.

Update 2

12 April 2020, whilst we are in virus lockdown I thought I’d clean and service the weather station and I noticed the fan had stopped working, so replaced it with the one sent to me by Noctura a couple of years ago, looks like the average continuous running life is two years for these fans.

Please follow and like us:

Davis 7346.174 – Pro2 Upgraded Digital Temperature Humidity Sensor

I decided to give the weather station a revamp, the two mini projects are the replacement of the Fan used to asperate the temperture/humidity sensor and the replacement of the original Davis temp/hum sensor with the more accurate chipset SHT15.









I bought the Davis 7346-174 upgrade from Scaled Instruments in Florida for $67.50 delivered (£51.94), the unit arrived very quickly as expected as I have used Scaled Instruments before and the service is exceptional.

Disassembly was quite straightforward after putting the station in install mode, what I was suprised by was the amount of dirt that had been drawn into to the fan guard and other parts of the Stevensons Sheild which all need a good wash with soapy water:












The original sensor is secured with two machine screws and the cable by a ‘P’ clip:












The replacement sensor was a direct fit as you wpould expects apart from the fact that instead of a ‘P’ clip, the environmental coating was used to form a cable clip, thit need a stand-off and additional machine screw to enable the sensor wire to be secured.













Once the housing was reassembled, sensor plugged up, fan reconnected and the station taken out of install mode everything worked just fine.

I’m awaiting the new fan to be deivered, so the second part of this will be blogged soon.

Please follow and like us:

Boltek LD-250 Relay Interface






The LD-250 Lighting Detector from Boltek has an internal output for a relay interface, the manufactures units are quite expensive, so I decided to make my own.

RLO-10 Boltek Relay Interface

Inside the LD-250 is a 14 way header which connects via ribbon cable to the RLO-10, off eBay I bought the 14 way ribbon cable and IDC cable mount socket for £5.00.

Opening the LD-250 the header JP1 is immediately obvious:














Using my multimeter, the header output pins linked to the front panel LED’s and the operating voltage was quickly found.


Using a spare strip of veroboard I mounted a magnetically shielded reed relay 5v, with flywheel diode across the coil, and the switched Normally Open reed output to a 2.54mm x 2 pitch connector, I also put veropins in the board so I can select which function I want the relay to operate on, should it be needed in the future.

The reed switch is used to switch 24v DC to an indicating LED and a a PLC input, the total load was measured at 21.49mA, well within the 500mA rating of the reed switch.

The module was placed in a small enclosure:enclosure








The ribbon cable was then plugged into JP1 inside the LD-250:













Switching on the Boltek performs a self test of the front LED’s and internal buzzer, as I have used the output from the ‘Close’ LED, the reed relay operated and the mast which was raised, automatically retracted.

All in all the project performs as expected and cost me £7 (enclosure was £2) saving me £58.95 on a factory unit.

Please follow and like us:

UK Weather Network & Meteobridge Pro

Chatteris Weather has been publishing weather data to UK Weather Network (UKWX) for a number of years when Martin from UKWX Admin mailed to let me know my data was no longer being shown.

Originaly Weather Display was configured to send data to UKWX and during the changeover to Meteobridge Pro this got missed, fortunatly in Martins mail alerting me to the problem was a link on how to configure Meteobridge.

MB instructions

I followed the above steps but couln’t get it to work, Martin kindly gave me the details of Bob Montgomery owner of Bishop Sutton Weather Station who also uses a Meteobridge, and he was very willing to offer advice in order to help me get the data created in a format which UKWX can injest.

This is what I learned with help from Bob:

  1. Open MB_stickertags-template.txt
  2. Copy the contents of the text file and past it into Notepad (I use Notepad ++)
  3. Save this file as MB_stickertags-template.txt
  4. Upload this file to your server, for ease I placed it in the root directory
  5. Set the file permission to 666
  6. In Notepad create a blank file and save it as MB_stickertags.txt
  7. Upload this file to your server, for ease I placed it in the root directory
  8. Set the file permission to 604
  9. Open Meteobridge Pro and select the Services tab
  10. Create an FTP and select periodical upload
  11. Enter your site details and update frequency as per the example below  (don’t forget to use yoursite) and press SAVE
  12. .Press TEST
  13. Using your browser enter www.yoursite/MB_stickertags.txt and you should be able to see your data
  14. Using the UKWX Contact Form, let admin know of your details

Example MB
Example MB Pro Services Setup




All done and time for a coffee!

Please follow and like us:

Meteobridge Pro

Tidied up the installation of my Meteobridge Pro as originally it was inside a metal patch cabinet and I wanted to try using it on wi-fi.

The unit has been on test since it was returned from repair and has performed really well with no issues requireing a reboot, dropped uploads have been attributed to network problems, hence moving it outside of ther cabinet and off the wired LAN.

I monitor uptime from the Status Page of my weather web site, cumulative downtime is recorded in a rolling 7 day period within the MORE setting HERE.

The front USB port has a micro 16Gb thumb drive for saving scheduled backups.

SOHO cabinet

Power for the Meteobridge Pro and the Davis Vantage 2 Pro are both  fed from a UPS in order to filter the mains to the adapters and to keep the units active during short duration ‘blips’ in power.

The screenshot below shows all the services the MB Pro is running perfectly with the bonus of significantly reduced power consumption.

Meteobridge live data

Power Data: 5.47V 413mA 2.26W  (Box Climate: 51.5°C 11%)
Please follow and like us:

Meteobridge Pro failed hardware

Due to a fault with the Meteobridge Pro, I’m unable to publish data from my weather station, the unit has been sent to Germany for repair and as soon as I receive it, normal service will be restored.

16 January 17 – Meteobridge Pro returned, fault identified as:

“There have been some pins
not correctly shortened that caused shortcuts on the USB path.”


Back up and running at 16:45.

Please follow and like us: