please can any one tell me how we use
the u shape manometer for pressure callibration .

I need help

 

Define the limits of measurement. Inches of water or inches of mercury.

 

See the diagram of a U tube manometer for a cal setup here:

http://www.cim.mcgill.ca/~paul/LabVIII.doc

Issac

 

Google is your friend.

The U Tube manometer is used in calibration
because, for example, inches of water _is_
inches of water.

Regards

cww

 

And what does the units (not limits) of measurement have to do with using a u-tube manometer? Isn't it still the difference in heighths, regardless of whether it's in in inches or cm or feet or dragons?

 

I want it to calibrate mmbar from (0 to 100 mmbar)

please reply to me