Sierra Instruments, Inc.

71 products found

Products

  • Mass Flow Controllers / Meters

  • Sierra SmartVO - Precision Gas Flow Control Valves

    Sierra SmartVO - Precision Gas Flow Control Valves

    The SmartVO is a valve-only version of our industry leading SmartTrak line of mass flow controllers. Each SmartVO control valve provides rapid response to control signalchanges and operates over a wide pressure differential range. All models are electromagnetic proportional control valves designed for use in closed loop flow or pressure control...

  • Sierra SmartTrak - Model 100 - Premium Digital Mass Flow Controllers and Mass Flow Meters

    Sierra SmartTrak - Model 100 - Premium Digital Mass Flow Controllers and Mass Flow Meters

    For lab researchers and systems integrators/OEMs, Sierra's flagship SmartTrak thermal mass flow controller is a true multi-gas digital MFC designed to deliver smooth, stable, accurate, and repeatable gas mass flow control you can rely on, every time. Unaffected by upstream gas temperature and pressure fluctuations, gas mass flow control is direct and unequivocal.

  • Sierra Compod - Model Upgrade - Mass Flow Controllers

    Sierra Compod - Model Upgrade - Mass Flow Controllers

    Many customers supercharge their SmartTrak mass flow controller with the Compod upgrade! The innovative Compod mounts to the face of any SmartTrak to set up simple process control systems without the need for PLC’s or computers.

  • Sierra TopTrak - Model 820 - Mass Flow Meters

    Sierra TopTrak - Model 820 - Mass Flow Meters

    The TopTrak 800 series provides an economical OEM gas mass flow meter in your choice of nylon, aluminum or stainless steel. Direct mass flow rate measurement with the nylon version at prices below that of a typical rotameter. Large tiltable display that can be mounted on the device or on a remote panel. Large cleanable sensor tube for use with dirty gases. Ask about OEM volume discounts on pricing to meet your budget requirements. For fast delivery,...

  • Sierra SmartTrak - Model 140 - Ultra-Low Pressure Drop Mass Flow Controller

    Sierra SmartTrak - Model 140 - Ultra-Low Pressure Drop Mass Flow Controller

    When you need premium high-performance mass flow control, but require the absolute lowest possible pressure drop, think SmartTrak 140.  The 140 controls up to 500 slpm with an ultra-low ΔP of 4.5 psid (310 mBard—much better than typical ΔP values of 25 psid (1700 mBard) for equivalent mass flow controllers on the market.

  • Sierra MaxTrak - Model 180 Series - Industrial Mass Flow Controller

    Sierra MaxTrak - Model 180 Series - Industrial Mass Flow Controller

    For high-performance digital mass flow control of gases in industrial environments, MaxTrak® 180 is CE approved and meets the rigorous requirements of NEMA 6 and IP67. The 180 is suited for dirty industrial processes such as those found in metals and ceramics manufacturing and combustion control systems, as well as the washdown environments in chemical processing, pharmaceutical, biotech and the food and beverage industry.

  • Sierra SideTrak - Model 840 - Analog Gas Mass Flow Controller

    Sierra SideTrak - Model 840 - Analog Gas Mass Flow Controller

    Get accurate, reliable mass flow control with SideTrak 840 analog mass flow meter and controller. This traditional mass flow meter: Features precise primary standard calibration to measure any gas with low pressure drop. Accurately measures oxygen, mixtures, toxics, corrosives, combustibles. Is widely used in process control, leak detection and gas distribution. The 840 flow meter has proven to be one of the world’s most dependable flow...

  • Thermal Mass Flow Meters

    With more than 40 years of experience developing and selling inline and insertion thermal flow meter technology, Sierra has established a large and successful installed base. Our immersible thermal gas mass flow meters were also deemed North America's #1 selling immersible thermal mass flow meter (2009 Flow Research, Yoder). We offer both inline and insertion thermal mass flow meters for heavy and light industrial applications. Our thermal flow meters range from our highest-performance Quadr

  • Sierra QuadraTherm™ - Model 640i - Air / Gas Thermal Insertion Mass Flow Meters

    Sierra QuadraTherm™ - Model 640i - Air / Gas Thermal Insertion Mass Flow Meters

    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...

  • Sierra QuadraTherm - Model 780i - Inline Thermal Mass Flow Meter

    Sierra QuadraTherm - Model 780i - Inline Thermal Mass Flow Meter

    The QuadraTherm 780i is the most accurate inline thermal mass flow meter for air / gas mass flow rate measurement on the market today, achieving gas mass flow rate accuracy never before possible, +/- 0.5% of reading above 50% of full scale. The QuadraTherm rivals accuracies of Coriolis technology for measuring gas mass flow rate with a breakthrough thermal dispersion technology achieving “percent of reading” accuracy.

  • Sierra SteelMass - Model 640S - Insertion Gas Mass Flow Meter

    Sierra SteelMass - Model 640S - Insertion Gas Mass Flow Meter

    Named North America's #1 selling thermal mass flow meter (2009 Flow Research, Boston MA), Sierra’s SteelMass Model 640S delivers precise measurements for heavy-duty industrial gas mass and air flow meter measurement applications. This insertion thermal mass air/gas flow meter offers precision SCFM (standard cubic feet per minute), SFPM (surface feet per minute) and SMPS (standard meters per...

  • Sierra qMix™ - Field-Update for Gas Composition Changes

    Sierra qMix™ - Field-Update for Gas Composition Changes

    qMix is a powerful, user-customizable gas mix feature included with every QuadraTherm thermal mass flow meter as a free beta trial version. qMix provides the ultimate gas flow measurement field flexibility by allowing you to create custom gases or gas mixtures to compensate for gas compositional changes in the field.

  • Sierra FlatTrak™ - Model 780S - Inline Thermal Mass Flow Meters with Flow Conditioning

    Sierra FlatTrak™ - Model 780S - Inline Thermal Mass Flow Meters with Flow Conditioning

    North America's #1 selling inline thermal mass flow meter (2009 Flow Research, Boston MA) delivers precise measurements with heavy-duty industrial gas mass and air flow meter measurement applications.  Choose from a wide variety of inline and insertion thermal mass air flow meters for precision CFM (cubic feet per minute) measurement of gas mass flow rate in industrial environments.

  • Sierra MultiTrak™ - Model 670S - Multi-Point Gas Mass Flow Meters for Large Ducts and Stacks

    Sierra MultiTrak™ - Model 670S - Multi-Point Gas Mass Flow Meters for Large Ducts and Stacks

    The 670S dynamically compensates for changes in the flow profile by using up to four independent mass flow sensing points to measure the instantaneous average gas mass flow velocity. The 670S is commonly used in petrochemical refining, coal-fired electric power generation, steel manufacturing and many other industrial processes that face the challenge of accurate and repeatable gas mass flow measurement in very large pipes or ducts.

  • Sierra ChlorineTrak™ - Model 760S - Chlorine Gas Mass Flow Meters

    Sierra ChlorineTrak™ - Model 760S - Chlorine Gas Mass Flow Meters

    The ChlorineTrak 760S has been specifically designed to perform as an accurate and cost-effective mass flow measurement solution for chlorine injection processes found in typical waste-water treatment applications. Given the corrosive nature of chlorine gas (particularly in the presence of moisture), extremely expensive Hastelloy was needed for main flow body construction.  And this drove the cost up thousands.  Finding a...

  • Sierra FlatTrak - Model 780S-UHP - Ultra High Purity Immersible Thermal Gas Mass Flow Meter

    Sierra FlatTrak - Model 780S-UHP - Ultra High Purity Immersible Thermal Gas Mass Flow Meter

    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...

  • Sierra OEM - Custom Packaged Thermal Mass Flow Sensors

    Sierra OEM - Custom Packaged Thermal Mass Flow Sensors

    North America's #1 selling thermal mass flow sensor(Flow Research, Boston MA) can be integrated into your end product package as a thermal mass flow sensor probe or probe / electronics set.  Tell us the length of the insertion mass flow sensor probe and we will make it to your exact specification.

  • Sierra - Four Multi-Gas Flow Totalizers for the QuadraTherm Thermal Mass Flow Meter

    Sierra - Four Multi-Gas Flow Totalizers for the QuadraTherm Thermal Mass Flow Meter

    This is a very powerful flow totalization feature available free in every QuadraTherm 640i/780i Smart Interface Program (SIP) software.  There are four totalizers visible on the software interface screen.  The user selects one to be active. Each totalizer is independent of the others, allowing users to totalize one gas, then switch to and totalize another gas, then switch back to the previous gas and pick up...

  • Vortex Flow Meters

    Vortex is the ideal flow technology for gas, liquid and steam measurement.  Available in both inline and insertion versions, Sierra's multivariable InnovaMass vortex flow meter measures up to five process variables with one process connection: volumetric flow rate, mass flow, density, pressure, and temperature, which is ideal for highly accurate steam flow measurement. By compensating for temperature a

  • Sierra InnovaMass - Model 240i Inline - iSeries Next Generation Vortex Flow Meters

    Sierra InnovaMass - Model 240i Inline - iSeries Next Generation Vortex Flow Meters

    Pipe sizes from 1.0 to 8.0 inches (DN25 to DN200). Ideal for saturated or superheated steam, gas, and liquid applications. Mass and/or volumetric flow rate. Multivariable for five (5) measurements in one compact device. Latest iSeries Raptor II OS flow engine. Complete suite of digital communications. Certified for Boiler MACT measurement meeting EPA regulations for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR...

  • Sierra InnovaMass - Model 241i - Insertion iSeries Next Generation Vortex Flow Meters

    Sierra InnovaMass - Model 241i - Insertion iSeries Next Generation Vortex Flow Meters

    The 241i insertion vortex flow meter is an economical solution for applications from 2-inch (50.8 mm) pipes to 72 inches (2M) in diameter and larger. Volumetric or multivariable measurement is possible with a single pipe insertion point, greatly reducing installation costs. The 241i can be hot tapped into applications with an optional probe retractor. More compact probe lengths are available based on application requirements.

  • Sierra InnovaMass - Model 240S Inline - Vortex Flow Meters

    Sierra InnovaMass - Model 240S Inline - Vortex Flow Meters

    Sierra was the first to introduce multivariable mass vortex flow meters to the market in the late 1990s with the InnovaMass 'S-Series' product line--the 240S and 241S. The InnovaMass 240S inline version is a true workhorse in applications ranging from large pipes and ducts, to high...

  • Sierra InnovaMass - Model 241S - Insertion Vortex Flow Meters

    Sierra InnovaMass - Model 241S - Insertion Vortex Flow Meters

    Sierra was the first to introduce multivariable mass vortex flow meters to the market in the late 1990s with the InnovaMass 'S-Series' product line--the 240S and 241S. The InnovaMass 240S inline version is a true workhorse in applications ranging from large pipes and ducts, to high pressure and saturated or...

  • Ultrasonic Flow Meters

  • Sierra InnovaSonic - Model 210i - Portable Clamp-On Ultrasonic Flow Meter for High Accuracy Liquid Metering

    Sierra InnovaSonic - Model 210i - Portable Clamp-On Ultrasonic Flow Meter for High Accuracy Liquid Metering

    The InnovaSonic® 210i portable ultrasonic flow meter succeeds at delivering expanded functionality and field portability when a permanent installation is not required.  The 210i is a complete liquid measurement kit with portable clamp-on transducers featuring a small handheld display interface with bright color display and push buttons. While principally designed for clean liquids, the 210i portable meter...

  • Sierra InnovaSonic - Model 210 - Portable Clamp-On Ultrasonic Flow Meter for High Accuracy Liquid Metering

    Sierra InnovaSonic - Model 210 - Portable Clamp-On Ultrasonic Flow Meter for High Accuracy Liquid Metering

    The InnovaSonic® 210 portable ultrasonic flow meter succeeds at delivering expanded functionality and field portability when a permanent installation is not required.  The 210 is a complete liquid measurement kit with portable clamp-on transducers featuring a small handheld display interface with bright color display and push buttons. While principally designed for clean liquids, the 210 portable...

  • InnovaSwitch Flow/Level Switches

  • Sierra InnovaSwitch - Precision Liquid Level Detection Level Switch

    Sierra InnovaSwitch - Precision Liquid Level Detection Level Switch

    The InnovaSwitch insertion-type level switch is a high-performance, industrial-grade liquid level indicator for tanks and process vessels. This product switches on level changes as small as 0.03 inch (0.8 mm) on dry-to-wet and wet-to-dry occurrences in a tank or vessel. The instrument was designed for heavy industrial environments, including high temperature and high pressure.

  • Sierra InnovaSwitch - Flow Switch for Precision Detection of Liquid / Gas Flows

    Sierra InnovaSwitch - Flow Switch for Precision Detection of Liquid / Gas Flows

    The InnovaSwitch insertion-type flow switch is a high-performance, industrial-grade mass flow switch for liquids and gases. This product was designed for heavy industrial environments, including high temperature and high pressure. Each InnovaSwitch includes temperature compensation over its entire measurement range to ensure set point stability and accuracy for process temperatures that vary up to ± 50°F (± 10°C).

  • Gas Flow Calibration Equipment

  • Fuel & Fluid Metering / Conditioning

  • Sierra - Engine Fluid Temperature Control

    Sierra - Engine Fluid Temperature Control

    The Sierra temperature control assembly is designed to provide temperature control of engine coolant, engine oil and turbo/intercooler (or other cooling circuits) in engine test applications, from a single bed water feed and return. The compact module supports the rapid control of coolant flow through the three independent bed water circuits. These circuits are usually connected to suitably sized heat exchangers, which in turn are connected to the...

  • FuelTrak - Transient Mass Flow Meter

    FuelTrak - Transient Mass Flow Meter

    The FuelTrak Transient liquid flow meter for fuel is an innovative technical advancement to our FuelTrak Gravimetric  meter because it enables continuous transient and steady-state fuel gas flow metering, as well as density measurement.

  • Sierra - Fuel Pressure Regulation Unit

    Sierra - Fuel Pressure Regulation Unit

    Each Fuel Pressure Regulation Unit is designed to allow a range of settable fuel delivery pressures to be achieved. The pressure setpoint inputted by the customer (either directly entered into CADET V14, or client host system) is controlled by an electro pneumatically actuated regulator valve and a pressure transducer to provide pressure feedback. A PRT probe is also integrated to provide fuel temperature feedback. A pump on the inlet is used to...

  • Sierra - Fuel Dosing Rig

    Sierra - Fuel Dosing Rig

    Sierra's fuel dosing rig is designed to supply a continuous, precise, controllable dose of additive/additives to fuel for delivery to an engine or vehicle under test. The system is designed to provide a continuous supply of dosed fuel, with high precision fuel consumption measurement.

  • Emissions & Analytical Solutions

    Sierra manufacturers the BG3 Elite Partial Flow Dilution system for use in diesel particulate sampling.  BG3 Elite is a direct replacement to cumbersome full flow CVS systems in both heavy and light duty emissions applications.  The BG3 Elite can feed properly conditioned diluted sample flow to a Bag Mini-Diluter for gaseous analysis or even to a Particle Number measurement device.

  • Sierra - Model SPNS Elite - Solid Particle Number System

    Sierra - Model SPNS Elite - Solid Particle Number System

    Increasingly, regulatory activity surrounding solid Particle Number (PN) has become one of the more difficult challenges for engine and vehicle manufactures today. Manufacturers of, and researchers in, automobiles, diesel engines, turbines, exhaust after treatment systems, motorcycles and mopeds are affected.

  • Sierra - Model BG3 Elite - Partial Flow Dilution (PFD) System

    Sierra - Model BG3 Elite - Partial Flow Dilution (PFD) System

    The BG3 Elite is a high performance next generation transient Partial Flow Dilution (PFD) system ideally suited for gravimetric sampling of engine exhaust Particulate Matter (PM).  Used widely for new engine research and development, the BG3 Elite is also used for engine certification work.

  • Sierra ExhaustTrak - Raw Exhaust Mass Flow Meter

    Sierra ExhaustTrak - Raw Exhaust Mass Flow Meter

    Discover the benefits of direct in-situ exhaust measurement with ExhaustTrak. With our roots in flow measurement and automotive test, Sierra has developed ExhaustTrak, an innovative spin on a centuries old flow meter technology that solves one of today’s greatest flow measurements challenges.

  • Sierra AirTrak - Model 628S - Intake Air Mass Flow Metering

    Sierra AirTrak - Model 628S - Intake Air Mass Flow Metering

    Our AirTrak 628S Thermal Mass Flow Meter was originally designed to work specifically with our BG3 Particulate Partial Flow Sampling System as an extremely fast, accurate, and repeatable engine air intake mass flow meter. In addition, the instrument has proven to be an excellent solution in all engine testing applications.

  • Sierra - Automatic Filter Changers

    Sierra - Automatic Filter Changers

    Sierra’s Automatic Filter Changer is a compact and portable safety and automation tool that should be a part of every emissions test cell. The system allows the engineer to stay out of the test cell during testing so several tests can be done in succession.  The system meets all Federal Register requirements.

  • Sierra - Filter Weighing Chambers

    Sierra - Filter Weighing Chambers

    After a high quality gravimetric particulate filter sample is made, it is extremely important to assure high quality post-processing procedures. Up to 50% of any error in data can be attributed to filter post-processing procedures.  Sierra's weigh chamber allows the operator to stabilize and accurately weigh sample filter media from any size engine. A precision balance, such as the Sartorius, is supplied by Sierra as an option.

  • Sierra - Air Handling and Scrubbing

    Sierra - Air Handling and Scrubbing

    Improve your filter sampling data by eliminating effects of dirty, wet or oily air on your results. Sierra's air handling and scrubbing system is designed to clean compressor air before it enters a sampling system or analytical equipment within the test laboratory. The international standard for compressed air quality provides a simple system of classification for the three main contaminants present in any compressed air system: dirt, water...

  • Sierra SootTrak - Real-Time Diesel Soot Mass Measurement

    Sierra SootTrak - Real-Time Diesel Soot Mass Measurement

    The Sierra Instruments Soot-Trak laser measures real-time engine soot particle mass emissions and performs characterization of soot particle particle size, primary particle surface area and number. Soot-Trak provides researchers and engine developers the accurate information they require about particle transport. With measurement accuracy of 5% using a known calibration source, Soot-Trak also sets itself apart from other real-time soot mass...

  • Chassis Dynamometers

    As a complete chassis dyno dealer, Sierra has a comprehensive range of standard and electric motor dynamometers to meet the complete spectrum of automotive testing requirements for engine, transmission and powertrain applications. Appropriate for diesel, car and motorcycle use, you’ll find a chassis dyno for sale that caters to the high-speed requirements of petrol engines and the high torque demands of diesel development.

  • Sierra - AC Dynamometers

    Sierra - AC Dynamometers

    Sierra supplies transient AC dynamometers with associated regenerative inverter drives up to 1,000 kW and 8,000 Nm and 16,000rpm for numerous small and large engine and vehicle test applications. When we review your request for a small engine dyno, our approach is most often based on a modular design to ensure that we meet technical specifications with the most cost-effective methods. Sierra's solutions encompass both higher-speed gasoline engine...

  • Sierra - Eddy Current Dynamometers

    Sierra - Eddy Current Dynamometers

    Sierra provides a range of dynamometers for numerous engine and vehicle test applications and services. Our eddy current dynamometer solutions are ideal for operational curves that fit power unit variants that require high torque or high speed/high power.  In addition to eddy current dynamometers, we are also manufacturers of motoring and absorbing 

  • Sierra - Hydraulic Dynamometers

    Sierra - Hydraulic Dynamometers

    Sierra is able to supply a range a hydraulic dynamometers suitable for most testing applications up to 20MW. For further details please contact Sierra with your specific requirements. Re-conditioned dynamometers are also available.

  • Sierra - Chassis Dynamometer Testing Solutions

    Sierra - Chassis Dynamometer Testing Solutions

    Sierra designs and manufactures custom engine dynamometers for vehicles ranging from motorbikes and heavy-duty equipment to tracked vehicles. With custom systems for sale that are flexible enough to meet a range of test specifications and budgets, you can buy chassis dynamometers to match most test cell installations. In addition to custom designs, a range of “standard” pre-designed roller sets are available in a range of sizes and...

  • Test Bed Services & Equipment

    Our philosophy of flexibility and simplicity of design helps provide the foundation for our range of modular, ancillary in-cell products to meet the diverse range of testing demanded by modern test systems. Our in-cell support solutions are designed as part of our turn-key engine and vehicle test cell automation and are also available as stand-alone solutions suitable for use with test systems supplied by other manufacturers.

  • Sierra - Model VTB - Versatile Test Bed Flexible Engine Handling Solutions

    Sierra - Model VTB - Versatile Test Bed Flexible Engine Handling Solutions

    For Engine Test applications, we custom design and manufacture a variety of engine handling solutions. From pre-rigged palletized systems to fixed test stands with flexible fixing arrangements, we have built our systems to support the installation and removal of a wide range of engine sizes. Whether the application is for...

  • Sierra - I/O Connection Transducer Boxes

    Sierra - I/O Connection Transducer Boxes

    Our range of interchangeable modular transducer boxes marshal connections from test system transducers. This allows transducers to be rigged onto an engine while away from the test cell and easily connected to the connecton panels when the engine is brought into the cell. The connection points are mounted in a range of enclosures, posts, or our signature H-frame depending on customer requirements. Examples include traditional...

  • Robot Drivers & Actuators

  • Sierra - Gear Shift Force/Feel Testing Package

    Sierra - Gear Shift Force/Feel Testing Package

    Our gear shift force/feel testing package is a combination of software and hardware that provides comprehensive real-time data capture and analysis capability for use in the development and improvement of gear shift performance quality, particularly where transient effects are of primary interest. The system is capable of monitoring shift events against a time based sequence and stores the shift events automatically by shift type, presenting...

  • Sierra - Model AT12 - Throttle Control Actuator

    Sierra - Model AT12 - Throttle Control Actuator

    The AT12 is an enclosed DC motor driven fast acting mechanical throttle actuator which can be used with Sierra or 3rd party control systems. The actuator provides performance suitable for ‘pull cable' type throttle applications ranging from small two stroke engines up to heavy duty diesels and racing engines.

  • Sierra - Motorcycle & Three-Wheeler Robots

    Sierra - Motorcycle & Three-Wheeler Robots

    Our motorcycle, scooter and three-wheeler robots have been developed to meet the needs of Vehicle Testing engineers who require a means of testing motorcycles and scooters without an operator. They are ideal for applications such as mileage accumulation and emissions work. We manufacture several variants of...

  • Sierra-CP - Robot Drivers / Actuation Modules

    Sierra-CP - Robot Drivers / Actuation Modules

    Sierra-CP manufactures a variety of precision robot drivers for use in a wide range of Vehicle Test or Powertrain and Transmission Testing. Our vehicle robot solutions consist of a number of sub-assemblies that are light enough to be assembled by one person. They can can be connected together, taught shift positions and limits, and be ready for tests in minimal time without the need for seat removal.The Vehicle Robot can be supplied as a standalone...

  • Engine & In-Cell Condition Monitoring

    Today, test cell ventilation and engine combustion air conditioning are recognized as key external influences that can have a significant impact on the motor test specimen and the results obtained. Sierra manufactures innovative modular solutions in this highly specialized field of engine condition monitoring.

  • Sierra - Engine & Vehicle Test Beds - Test Facility Ventilation Systems

    Sierra - Engine & Vehicle Test Beds - Test Facility Ventilation Systems

    When compared to commercial HVAC-based solutions, our expertise is particularly valuable for sizing the ventilation system components for use in engine and powertrain applications with associated high changeable loads. Sierra designs and constructs custom ventilation systems to reduce the environmental variability that can effect repeatability of results and unnecessarily extend test programs. Designs are typically customized for each...

  • Sierra-CP - Test Cell Ventilation Systems

    Sierra-CP - Test Cell Ventilation Systems

    Sierra-CP designs and manufactures custom ventilation systems to reduce the environmental variability that can effect repeatability of results and unnecessarily extend test programs. Designs are typically customized for each application and can include (or make provision for) heating and cooling units, or re-circulation and make up air. When compared to commercial HVAC-based solutions, our expertise is particularly valuable for sizing the...

  • Sierra - Combustion Air Handling Unit (CAHU)

    Sierra - Combustion Air Handling Unit (CAHU)

    Our premium Combustion Air Handling Unit (CAHU) conditions the three ambient air elements to generate a consistently accurate supply of conditioned air to the engine intake, thereby adjusting pressure, temperature and humidity to precise repeatable conditions that conform to end-user specifications. Controlled by our

  • Sierra - Exhaust Back Pressure Control Valve

    Sierra - Exhaust Back Pressure Control Valve

    Sierra's range of exhaust back pressure valves and air valves are fast acting stainless steel butterfly valves ranging from 2' to 8' diameter (larger on request). Each valve is controlled by an electronic actuator.Use this high performance valve to adjust and simulate the effective pressure drop of the test bed inlet and exhaust system.

  • Sierra - Dynamic Simulation of Turbo Charger Conditions

    Sierra - Dynamic Simulation of Turbo Charger Conditions

    The Sierra boost rig was originally designed for investigative work on modern and future research engines requiring boost values of around 2-6 Bar delivered to the engine.  This challenge evolved to require some heating and cooling capability based on a cooled compressed air supply of typically 30C-40C. The Sierra boost rig gives dynamic control of pressure and steady state control of temperature of the engine supply air, to simulate...

  • Economical/OEM Line of Mass Flow Meters & Controllers

  • Sierra TopTrak - Model 822/824 - Gas Mass Flow Meters with Digital Display

    Sierra TopTrak - Model 822/824 - Gas Mass Flow Meters with Digital Display

    Sierra Instruments' Top-Trak Model 820 Mass Flow Meter is designed to replace volumetric flow rate devices at a comparable installed cost. No temperature or pressure corrections are required, as in the case of most other flow monitoring devices, such as rotometers, turbine meters or critical orifices.

  • Analog Mass Flow Meters & Controllers

  • Sierra FastTrak - Model 730 - Fast-Response, Ultra-Stable Mass Flow Meter

    Sierra FastTrak - Model 730 - Fast-Response, Ultra-Stable Mass Flow Meter

    Designed for applications that require fast response and low flow sensitivity, the 730 FastTrak is an industry proven work-horse that provides +/- 1.0% of full-scale accuracy, and +/-0.2% of full-scale repeatability over a wide temperature and pressure range. With a very small footprint, 6.4: x 1.1 with a 3.1” to 5” F/B, the in-line mass flow meter is well suited for OEM applications. The fast-response (200 ms) flow meter measures flow...

  • Heavy Industry Thermal Mass Flow

  • Sierra FlowTrak™ - In-Line Flow Conditioning Plates

    Sierra FlowTrak™ - In-Line Flow Conditioning Plates

    FlowTrak is an economical solution to problems associated with monitoring flow installations where long, straight runs of piping are not available. Extensive scientific testing since the 1990s has demonstrated that this device virtually eliminates the effect of piping conditions with fewer upstream diameters than any other flow conditioning technique.  And its simplicity means it is a fraction of the cost of more complex solutions on the...

  • Heavy Industrial Flow and Level Switch Products

  • Sierra - High Temperature Flow Switch up to 850F

    Sierra - High Temperature Flow Switch up to 850F

    Designed for medium and high temperature applications. Medium Temperature to 300C (572F) ; High temperature to 485C (850F). Optional remote electronics for use in medium and Hi T environments. Switches on a flow/no flow condition in both gases and liquids. Flow Switch range of 0.01 to 5 fps in liquids and 0.1 to 500 fps gases. Response Time of 0.5 to 10 seconds (media dependent). CE, CENELEC and CSA approvals.