Sierra Instruments InnovaMass 240 cryogenic multivariable vortex mass flowmeter

Sierra Instruments has introduced a cryogenic version of its InnovaMass 240 multivariable mass vortex flowmeter for advanced, more reliable measurement of liquefied gases, including liquid nitrogen, liquid oxygen, liquefied natural gas (LNG) and liquefied petroleum gas (LPG), at temperatures down to -200°C.

Historically gauged by inexact turbine flowmeters, liquid gas flow can now be calculated with greater precision, since the InnovaMass contains no moving parts that will wear out or require service - an advantage that provides stable readings and an increased service life.

The cryogenic version has undergone extensive testing and field validation over the last several years, proving that the meter is preferred versus traditional turbine meters for measuring mass flow rates of cryogenic fluids down to -200°C. Using a special cryogenic temperature RTD, mass calculations are done with the latest density equations of state for liquid oxygen, nitrogen, argon and carbon dioxide, and it can provide direct readings of mass flow rate, volumetric flow rate, temperature and density. Smart electronics extends the range down to a Reynolds number of 5000.

The flowmeter can be loop powered with power in, a programmable analog output and a HART or Modbus signal riding on the same two wires. Field-configurable ranges, alarms, outputs and displays can be configured via six push-buttons or via a magnet through an explosion-proof window.