Is there anyone on the newsgroup who knows a thing or two about Met Office
pattern Precision Aneroid Barometers, in particular the MK2 model?

I have three questions that I'd welcome answers to:

1. How often do these instruments need recalibrating? The one I have was
last calibrated in 1998.

2. The calibration report compares the absolute test pressures with
pressures recorded by the instrument (with pressure increasing and
decreasing). The differences range typically from 0.1 to 0.3mb. Am I right
in thinking these differences represent the calibration corrections that
need to be applied for a correct reading of station level pressure?

3. Where can I get a replacement cathode-ray tube - if I need to replace it?
How long do these last?

--
Mike Lewis

Department of Geography and Geology (incorporating Pitsford Hall weather
station)
Northamptonshire Grammar School
Northampton, United Kingdom NN6 9AX.

Tel. 01604 880306

Weather Station Extension 314

Department: www.ngs-geography.com
Weather Station: www.northantsweather.org.uk
mailto:

Home site: www.brixworth.demon.co.uk

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