MASS FLOWMETER    

These very accurately measure the mass flowrate, density and temperature of liquids, suspensions, emulsions and gases.

Excellent accuracy and repeatability
Independent of viscosity and temp changes
Displays mass flow,density and temperature
Outputs for your control systems
Preset for your requirements
No obstruction to flow
Intrinsic safety approval
Hygienic approval

Application
These are very accurate for dosing and batching of liquids and gases. They cover the range from 0.01kg/min to 3000 kg/min. The results are accurate independent of changes in viscosity, temperature, pressure and density.

Instrumentation
The display converter has an LCD display. It displays the mass flow rate, total, temperature and density. It has pulse and current outputs for a wide range of control systems.

Principle of Operation
Coriolis forces are generated in an oscillating system when a mass moves away from or towards an axis of oscillation. The measuring tube is vibrated at a uniform frequency. With no flow the Coriolis force is zero. During flow the particles in the fluid are accelerated and decelerated to and from the axis of oscillation. This generates Coriolis forces that move the measuring tube by extremely small amounts and are detected by special sensors. The Coriolis force is directly proportional to the mass flowrate.

Construction
The range of materials of the wetted parts make it suitable for almost all applications.
The flowmeters consist of a detector and a display converter. They can be supplied integral with the display mounted directly on the detector or separately connected by cables (100m max.) so the display can be mounted remotely.
There is an option for a heating jacket fitted to allow the line fluid to be heated up to 150 oC. For this option the converter must be mounted separately.

Calibration
Each flowmeter is calibrated against scales. The scales are calibrated to National Standards by the Trading Standards Calibration Service.
The mass flowmeters have measuring errors of less than 0.15% of the measured value.
To ensure accuracy over the measuring range, calibrations are carried out at different flow rates.
Each mass flowmeter is also calibrated for a density range of 0.5 to 2.0 g/cm3.

Installation
The flowmeter is mounted in the line and should be maintained full of liquid prior to and throughout measurement. You are strongly advised to avoid heavily vibrating environments. The tube can be installed in a vertical or horizontal line and has a straight through bore that is self-draining and has a minimal pressure drop. A zero point calibration is done after installation when the line is full of liquid.

Options
There is a range of equipment for use with the S series flowmeters. These include air eliminators, check valves, filters and counters.

Flow Ranges

Flowmeter Specification

Materials of Construction

Converter Specification

Materials of Construction

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