Meaning
Coriolis mass flow metering defines the primary function of iso 10790. This document establishes technical requirements for the calibration and verification of devices measuring liquid or gas flow based on inertia forces within vibrating tubes. Accuracy limits for laboratory settings and field applications appear throughout the text to define performance boundaries.
Compliance requires consistent testing procedures to maintain traceability.
Measurement Protocol
Rigorous testing sequences govern how iso 10790 evaluates sensor drift in industrial settings. Calibration rigs force fluid through a primary element while comparing the mass output against a gravimetric reference standard. Variations in ambient temperature or mounting pressure influence the oscillation frequency of the tubes.
Technicians apply correction factors to the signal processing unit until the deviation falls within the published tolerance range. This method isolates the true mass flow from density interference caused by dissolved gases or entrained solids in the stream.
Polymer Application
Viscous fluids like molten thermoplastic resins introduce specific challenges for flow control systems governed by iso 10790. Injection moulding operations require precise mass delivery to ensure consistent cavity pressure and part dimensions. Drift in the measured flow rate leads to variations in the specific gravity of the moulded object as the material cools.
Sensors calibrated to this standard provide the stable data necessary for closed loop control on automated production lines. Correct settings prevent the development of internal voids or sink marks in high volume batches.
Resource Management
Calibration maintenance costs impact the overall operational budget of a moulding facility. Unchecked sensor degradation results in higher scrap rates because the controller cannot distinguish between a density shift and a throughput error. Regular validation according to iso 10790 ensures that the system maintains measurement integrity over its operational lifetime.
Verified flow data protects against the financial losses associated with incorrect resin dosage. Precise flow monitoring reduces the volume of rejected plastic components.
