Sierra Instruments, Inc. products

Sierra’s BioTrak 645S/745S shares many of the basic features and benefits of the powerful 645i/745i at a more economical price. Like the 645i / 745i, it meets the rugged demands of municipal and industrial wastewater plants where aeration, digestion, and cogeneration play pivotal roles. BioTrak makes operators smarter and their processes more reliably efficient.

d·flux’s user-friendly Bluetooth app, Sierra Flow Connector, is available for free from Google Play. It allows you to easily and securely connect to d·flux with your Android mobile device to create and edit profiles (a set of settings). While operating in the field, you can adjust flow range and dynamic range, filter settings, alarms and warnings, and an assortment of other critical parameters.

The FastFlo 620S is an insertion thermal mass air flow sensor designed to give you a highly reliable, responsive and affordable mass flow measurement for light industrial applications where a NEMA 4X (IP65) enclosure is acceptable. 

Industrial OEM MFC with MEMS Technology Water Resistant. Stable. Cost-Effective. Engineers in the biopharmaceutical industry require precise control of the gases used in bioreactors. Sierra’s RedyIndustrial thermal mass flow meter delivers optimized microbial growth that ensures exact mixing and distribution of the biomass.

Engineers in the Biopharmaceuticals industry require precise control of the gases used in bioreactors to optimize microbial growth and ensure proper mixing and distribution of the biomass. In addition, precision burner control is needed in order to produce the glass ampules, vials and bottles that are used to properly package the resulting biopharmaceuticals.

The CalTrak XL is the leading high-flow primary standard calibrator on the market today. The XL is used for calibration and verification of mass flow meters, controllers, variable area flow meters, and precision in-situ calibration of industrial flow meters and controllers. With increased demand for higher flows of process gas, there is a heavy demand to validate and calibrate high flow gas meters and controllers.  The cost to use third-party calibration houses to calibrate and certify higher flow devices is three to four times the cost of an ordinary low flow device up to 50 slpm.

Rotameters, also known as Variable Area (VA) meters are used across nearly every industry where economical gas flow metering and flow regulation is required. Rotameters are what is known as a volumetric flow meter only capturing the gas flow volume, not gas mass flow rate. All volumetric flow meters and regulators are sensitive to gas pressure and temperature changes—a pressure change of just 1 Bar generates flow rate error of up to 50%.

AirTrak is a thermal mass flow meter specifically designed to measure engine air intake mass flow rate. The instrument is: Ideal for the toughest transient test cycles where flow excursion can approach 10:1 within less than two seconds. Uses extremely sensitive, 200-millisecond response-time thermal insertion sensor. A flexible solution for constrained piping environments commonly found in today’s engine and vehicle test facilities with integral laminar flow conditioning inside the flow body and wide 15:1 turndown.

In use since 2004, BG3 PFD (Partial Flow Dilution) technology effectively performs engine research and development to accurately sample exhaust PM (Particulate Matter) emissions over both steady state and transient test cycles (Read Case Study). On January 7, 2011, PFD was signed into law and is now included in the United States Federal Register as a legally recognized alternative method to CVS in 40 CFR part 1065 for engine certification. The Direct Final Rule (DFR) contains, among other things, the unprecedented allowance to use PFD for engine emissions PM transient certification testing.

The InnovaSonic 203 liquid flow meter is optimized for customers still looking for high performance, but needing a lower-cost, less feature-rich option for dedicated clamp-on ultrasonic metering. The 203 digital liquid flow meter optimizes the measurement of water as it flows in HVAC, irrigation and other liquid applications.