Hello,

I have recently purchased a technoline WS-3500 weather statio and I am
having trouble understanding how to set the setting for "relative
pressure". I am told that I set this setting to a reading that I can
get from the BBC website for my area and thats it job done? I am
confused as the reading I enter into this setup option is different
from what is read on the actual pressure display - why are they
different and what is the correct way to set this parameter?

Many thanks in advance

Gary

wrote:

get from the BBC website for my area and thats it job done? I am
confused as the reading I enter into this setup option is different
from what is read on the actual pressure display - why are they
different and what is the correct way to set this parameter?

What they call 'relative pressure' is usually called 'sea level
pressure', that is, the pressure that your barometer would be reading at
your location if you were at sea level. This is same pressure that will
be quoted on web sites such as the BBC or Met Office etc.

You may well be setting it correctly, but have you told it to actually
*display* the 'relative' pressure rather than the 'absolute' pressure? I
believe you need to press the pressure section on the display twice.
--
Steve Loft, Glenlivet. 200m ASL
Weather and webcam:
http://www.livet.org.uk/weather

i don't know if this answers your question but, the difference is Relative
Pressure takes into account your current location (i.e. Altitude), and
Absolute Pressure is pressure at sea-level. As for setting that parameter,
i think it differs from weather station to weather station. My weather
station, i simply had to enter the current relative pressure once, and now
its set.

Hope this helps

Mike

www.dudleyweather.pwp.blueyonder.co.uk