"jim" wrote in message
...
My Max/min thermometer does not give equal readings onthe two
scales.Any
ideahow I can equalise them please? It is a mercury thermometer with
markers
in eachsection of a U-shaped tube.
These can be reset by an inbuilt magnet at the back.

That usually means that the glassware is not mounted correctly i the
frame. Try moving it slightly up and down till the readings are the
same.

Franz