How to resolve the 1-ton discrepancy between the cumulative readings of the high-accuracy mass flow meter and those of the weighbridge?
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Dear teachers, the loading system has a capacity of 120 t/h for loading into tank trucks; each tank truck can hold 30 tons. The difference between the reading on the weighbridge and that of the flow meter is only 20 kg. A high-precision mass flow meter is also installed on the unit to feed material directly into the tank truck at a rate of 50 t/h. The reading on the flow meter for each 30-t tank truck can differ by 1 t compared to the value indicated by the scale; the accuracy of the flow meter is 0.2%. How can this problem be resolved?
Please have a professional calibration agency recalibrate the mass flow meter
1. Check the accuracy of both the flow meter and the weighbridge at the same time； 2. Check the rationality of the piping to eliminate material bypassing and accumulation. .
Check the installation accuracy; generally, I calibrate the flow meter after ensuring that the scale is accurate.
It should be related to the installation location of the flow meter; in some locations, gas phase may appear even at low flow rates
It is more accurate to use standard weights for calibrating truck scales as a reference. The normal accuracy level of flow meters is also acceptable. Check whether inaccurate parameter settings or problems related to the installation location are causing issues such as excess volume in the pipes.
For Coriolis mass flow meters, sufficient backpressure must be ensured; the sensor should be allowed to hang freely. Zero calibration is required before use
https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1617392 For installation requirements and initial setup procedures, you can check this post
Refer to the commutator of the standard flow meter device; however, with such a large error, is it possible to resolve the issue even by using a commutator? Consider factors such as the accuracy of the flow meter and whether the pipe is fully filled
Is a flow rate of 50 t/h sufficient to meet the design requirements of your mass flow meter?
1. Check whether the flow meter is installed in a location that meets the installation requirements. 2. Determine if there is a mixture of gas and liquid in the flow meter. 3. Verify that the density setting is accurate