Calibrating a barometer

[Channel Hopper]

I've got this S+B barometer which, whilst functioning, is certainly not correct in its daily readings.

I could blag the neighbours barometer to check the calibration and adjust, but does anyone know of a site that deals with local atmospheric pressure and changes ?

 

[Analoguesat]

Close enough?

http://www.eldoradocountyweather.com/forecast/UK-Ireland-Currents/uk-current-barometric-pressure.html

 

[Channel Hopper]

Twill do, thanks.

Now to fiddle with the knob....

 

[Analoguesat]

And the barometer??

 

[Lazarus]

Twill do, thanks.

Now to fiddle with the knob....

No pressure, then ......................... :-shifty

 

[Channel Hopper]

No pressure, then ......................... :-shifty

The opposite, it's reading high, so the twiddling will be to gain some relief, fnar fnar

 

[Channel Hopper]

The next couple of days will be a good test of the adjustments.

 

[Channel Hopper]

She's still not absolutely accurate, according to the link in post 2.

Though I have found the manual hand for daily checks does brush against the main unit as it sweeps by. I may have to space the glass off a few microns with a small gasket.