Joined: June 15, 2008
Posts: 5
Location: India
Status: Offline
Posted:
June 18, 2008 - 09:00 AM
Post subject: calibration for Magntetic flow meters and temperature TX
i could find any topics related to magnetic flow meter calibration , as i know that we cannot calibrate mag meters in feilld , but any one can explain regarding the calibration done in factory , that would be useful. and also the k-factor also lets discuss related topics for Temperature tx calibration?
sirisha
ICE Student
Joined: June 11, 2007
Posts: 28
Location: Karnataka
Status: Offline
Posted:
June 29, 2008 - 12:15 PM
We are using Vortex flow meters in our plant. And we send those flow meters to the manufacturers for calibration and we get the necessary calibration certificates from them.
K-Factor of a flow meter is normally given by the manufacturer based on the Turn down ratio, Line pressure , temperature and other factors.
fundu_instru
ICE Expert
Joined: June 20, 2006
Posts: 180
Location: Singapore
Status: Offline
Posted:
July 02, 2008 - 10:35 PM
we can calibrate mag flow meter, by installing one more portable ultrasonic flow meter(or any other meter), upstream of mag meter. However, to get certificate, you need to check with your quality requirements wheather it requires vendor certification or inhouse calibration certificate.
For factory calibration, you can use test bench and specific flow and specific ambient conditions which will generate newarly idal mag. field.
K factor is explained by shirisha.
Temp transmitter calibration is done with temp. element on test bench with oilbath system.
Arif.M
ICE Newbee
Joined: June 15, 2008
Posts: 5
Location: India
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Posted:
June 18, 2008 - 09:00 AM
