Zhejiang Sealand Technology Co.,Ltd.
Chapter 1 Specifications
1.1 Introduction
The meter is designed and produced according to world’s latest Coriolis technology, with
better appearance, stability and accuracy to measure mass flow rate of a fluid traveling
through a tube, widely applied to alternative energy, oil & gas, chemical, food & beverage,
industrial energy, marine, metals and mining, power, pulp & paper, water & wastewater
industries, etc.
1.2 Operating principle
Mass flow meter measures the mass based on Coriolis effort. The operating principle
involves inducing a vibration of the tube through which the fluid passes. The vibration,
though not completely circular, provides the rotating reference frame that gives rise to the
Coriolis effect. While specific methods vary according to the design of the flow meter,
sensors monitor and analyze changes in frequency, phase shift, and amplitude of the
vibrating flow tubes. The changes observed represent the mass flow rate and density of the
fluid.
1.3 Features
● Measurement is not influenced by flow density, viscosity, temperature & pressure;
● Low requirement of straight pipe, because nothing inside holds back the flow;
● Internal nominal diameter varies from DN06 to DN100;
● Low power dissipation; stable zero point; better accuracy;
● Meter is ARM system, with 3 calculators to count density, temperature & mass flow rate;
● Transmitter is assembled by surface mounting technology, with self-inspection function;
● Ex-mark is Ex ib II B/II CT1~T6 Gb.
1.4 Operating conditions
● Ambient temperature: Sensor -50°C~+200°C
Transmitter -20°C~+50°C
● Relative humidity : 5%~95%, non condensed
● Fluid : Liquid/Gas/Slurry
● Fluid temperature: -200°C~+200°C
● Nominal pressure: 4MPa(general model)
25MPa(high pressure model)
● Voltage: AC/85~265V; DC/20V~26V
Chapter 2 Composition
The meter is composed of mass flow sensor and transmitter, with executive standard GB/T
31130-2014.
Mass flow sensor is a phase-sensitive resonant sensor based on Coriolis effect,composed of
vibration tube, signal detector, concussion driver, structural support, shell, etc.
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