Dear All
I need some help in estimating the temperature effect on the overall uncertainty of the Emerson Coriolis meter. In the datasheet, under the title of "Temperature Measurement", it says the following:
Temperature is a measured variable that is available as an output. The temperature is also used internal to the sensor to compensate for temperature influences on Young’s Modulus of Elasticity.
Then it defines the accuracy associated with this temperature sensor under the title of "Accuracy and repeatability on temperature".
It then tells us the "Process Temperature Effect" on mass flow accuracy under the title "Process Temperature Effect". It is also stated that if the meter is zeroed at operating condition, then this effect can be zero.
Now imagine that the process temperature is varying over a certain range, it means that the temperature effect has to be considered. Also, the temperature sensor used to calculate the difference between operating and calibration temperature will be the integrated temperature sensor, therefore, its uncertainty should also be considered as mentioned under the heading of "Accuracy and repeatability on temperature".
But surprisingly, in AGA 11, we do not see the temperature effect as a valid uncertainty contributor in Coriolis mass flow. Why do you think its like that?
In reply to Marc Buttler:
In reply to Shaiq Bashir: