Meet Sierra's Multivariable Mass Vortex Flow Meter Family!
Multivariable Mass Vortex Flow Meters

Sierra was the first to introduce a Multivariable Mass Vortex Flow Meter to the market in the 1990’s. Sierra's Multivariable product line features an inline version, the Model 240 Innova-Mass® and a unique insertion version, the Model 241 Innova-Mass®.  The Model 240 and Model 241 can measure the mass flow rate of any gas or liquid and are ideally suited for saturated or superheated steam.  The 241 is available in high-pressure versions capable of mass flow measurement of gases up of 5000 psig.

Sierra believes that the more we can accurately tell you about your flow, the better. Our Multivariable Technology allows one instrument and one process connection to measure FIVE process parameters at the same time. The Model 240 and Model 241 simultaneously measure mass flow rate, temperature, pressure, volumetric flow rate, and fluid density. The unique design features an integrated sensor suite consisting of a velocity sensor, a temperature sensor and a pressure transducer all tied to a sophisticated on-board computer.

The Model 240 and Model 241 are fully field-programmable, configurable and feature RS485, MODBUS or HART protocols. You save money by getting FIVE separate instruments in ONE. Increase your flow knowledge—Try Innova-Mass®!

Click to download a zipped innova sizing program (Please note extended download time required)

	Innova-Mass® Model 240 In-line Multivariable Mass Vortex Flow Meter Provides a direct reading of FIVE process parameters at the same time. Low maintenance, easy installation, and great configuration flexibility.   Product mass flow measurement accuracy is ± 1% of rate for liquids and 1.5% of rate for gases and steam over a 30:1 range.
	Innova-Mass® Model 241 Immersible Multivariable Mass Vortex Flow Meter Provides a direct reading of FIVE process parameters at the same time in process pipe sizes up to 72 inches. Low maintenance, easy installation, and great configuration flexibility.   Product mass flow measurement accuracy is ± 1.5% of rate for liquids and 2% of rate for gases and steam over a 30:1 range.

Volumetric Vortex Flow Meters
Gas, Liquid and Steam (Saturated & Superheated)

	Innova-Flo® Model 240V In-line Vortex Flow Meter Sierra's Model 240V Innova-Flo provides a direct reading of volumetric flow for liquids, steam or constant density gases. Product accuracy is ± 1% of rate for liquids and 0.7% of rate for gases and steam over a 30:1 range.
	Innova-Flo® Model 241V Immersible Vortex Flow Meter Model 241V Innova-Flo provides a direct reading of volumetric flow for liquids, steam or constant density gases. The unique insertion design may be used in process piping from 2-inches up to 72-inches. Product accuracy is ± 1.2% of rate for liquids and 1.5% of rate for gases and steam over a 30:1 range.