Sierra Instruments, Inc. products

The QuadraTherm 640i is the most accurate insertion-probe thermal mass flow meter for air / gas mass flow rate measurement on the market today, achieving gas mass flow rate accuracy never before possible, +/- 0.75% of reading above 50% of full scale. The QuadraTherm 640i air / gas mass flow meter marks an accuracy breakthrough in thermal dispersion technology achieving extreme precision with "percent of reading" accuracy, which for the first time rivals accuracies of Coriolis technology for measuring mass air flow rate and other gases.

The Sierra PowerMass TM500 promises precision, speed, and the field flexibility you need to adjust gas mixes and configure meter settings to maintain optimum process efficiency. Designed for the most demanding industrial processes in facilities management, chemical plants, gas refineries, and petrochemical production, Sierra flow measurement instruments are built to last and meet your application, budget, and delivery needs.

The AdvantageMass TM100 delivers amazing value to end user’s burner and combustion applications, natural gas and pure gas monitoring, and compressed gas and packing leaks. Make no sacrifices in precision, speed, and field flexibility to maintain optimum process efficiency. Sierra`s TM100 is built to last and meet your application, budget, and delivery needs.

The 780S is North America`s #1 selling inline thermal mass flow meter (2009 Flow Research, Boston MA). Our ultra high purity 780S-UHP is the industry-choice for bulk gas distribution service in semiconductor fabs, in pharmaceutical production and other ultra-clean processes. Real-time monitoring of gas usage provides reliable information on consumption and usage patterns in the manufacturing area and may be used for both billing and diagnostic purposes.

BoilerTrak is designed to provide an economical, easy-to-install solution for precise natural gas measurement for heaters and boilers to increase efficiency. The thermal mass meter is also suited for compliance with new regulations for burning natural gas and propane in commercial boiler applications. 

Accurate monitoring of peak, low flow and total gas mass flow rates is a critical part of many industrial process control systems. The FlatTrak 780S offers improved measurement capabilities in installations where long straight pipe runs are not available.