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THERMAL MASS FLOW METERS

The Thermal Mass Probe Flow meter accurately measures gas, liquid, or slurry flow rates in various applications. Unlike other models, our probe is designed with no clog-prone apertures, ensuring reliable performance. Enclosed in a sealed tube, our sensors can be easily inserted or removed during operation. We offer a mechanical retractor option if needed. Probes are crafted from durable materials like 316 SS, with options for corrosion-resistant alloys like Hastelloy C and Monel. Protective coatings such as Carbide, Fluorocarbon, Teflon, and Sulfinert enhance longevity and performance.

What is Thermal mass flowmeter and how does it operate?

Thermal Mass Flow Meters operate based on the principle of thermal dispersion, also known as the heat transfer principle. In this method, a heated sensor element is inserted into the fluid stream, and its temperature is maintained constant. As the fluid flows past the sensor, it carries away heat from the sensor. The rate at which heat is removed from the sensor is directly proportional to the mass flow rate of the fluid. This change in temperature is detected by one or more temperature sensors, usually thermistors or resistance temperature detectors (RTDs), located within the flow meter. By measuring this temperature change, the flow meter can accurately determine the mass flow rate of the fluid.

Imagine you’re making a cup of hot coffee on a chilly day.

As you pour milk from the container into your mug, you notice steam rising from the surface. The steam carries heat away from the milk, causing it to cool down slightly.

Similarly, in a thermal mass flow meter, a sensor is heated to a constant temperature, and as fluid flows past it, it carries away heat, causing the sensor’s temperature to change. By measuring this temperature change, the flow meter can tell how fast the fluid is flowing, just like you can gauge how quickly your milk is pouring by observing its temperature change.

A Wire Anemometer, or hot-wire anemometer, operates on the principle of convective heat transfer. The basic principle involves heating a wire to a constant temperature above the ambient temperature. As air flows over the wire, it cools the wire, causing its resistance to change. By measuring the change in resistance, the velocity of the airflow can be determined. This is achieved using an electrical circuit that monitors the resistance of the wire and converts it into a corresponding airflow velocity measurement.

How Wire Anemometer Works?

A wire anemometer typically consists of a thin wire made of a material with a high temperature coefficient of resistance, such as platinum. The wire is heated to a constant temperature above the ambient temperature using a small electrical current. As air flows over the wire, it cools the wire, causing its resistance to change. The change in resistance is measured using a Wheatstone bridge circuit or similar electronic circuitry. The airflow velocity is then calculated based on the known relationship between the wire resistance and the velocity of airflow.

Wire anemometers are commonly used in various applications, including meteorology, environmental monitoring, HVAC systems, and aerodynamics research.

These instruments are crucial in various fields such as environmental monitoring, HVAC systems, aerospace engineering, and industrial processes. Studying them helps students understand fundamental principles of fluid dynamics and heat transfer, applicable across numerous disciplines.

INSERTION PROBE THERMAL MASS FLOW METERS

Model 62-9

The Thermal Mass Probe Flow meter is inserted directly into the flow stream to measure the flow rate of gases, liquids, or slurries in piping, irregularly shaped lines, and process ducts. Unlike other probe flow meters, we offer a model that has no apertures that can be clogged with particles or distorted by wear. Our sensors are enclosed in a sealed tube which can be inserted or removed through a gate valve or a packing gland while conduit is in use. 

We also offer a mechanical retractor if required for your application. Our probes are manufactured using 316 SS as a standard, but corrosion resistant materials such as Hastelloy C, Monel, Inconel, Tantalum, and Carpenter 20 are also available. In addition, our Thermal Mass Flow Meters are available in a variety of protective coatings including Carbide, Fluorocarbon,
Teflon, and Sulfinert.

  • Airflow Measurement for ducts and compressed air lines
  • Natural Gas measurement to boiler
  • Waterflow measurement for cooling operations

APPLICATIONS:

In Indonesia, industries face similar regulatory pressures regarding gas consumption monitoring, particularly in areas like Jakarta, Surabaya, and Bandung. Compliance with regulations is essential, as governmental mandates require precise monitoring beyond standard gas meters. Thermal mass flow technology emerges as the preferred solution, offering accurate measurement and reporting capabilities crucial for regulatory compliance. Many businesses in these urban centers rely on Thermal Instrument’s insertion and in-line thermal mass flow meters for gas monitoring. These meters ensure precise measurement with minimal pressure drops, making them ideal for optimizing air-to-fuel ratios in burner systems. Unlike other flow meters, Thermal Instrument’s solutions require no pressure or temperature compensation, simplifying installation and ensuring consistent readings proportional to gas mass flow. For industries seeking compliance with regulatory mandates and efficient gas management, Thermal Instrument provides tailored solutions perfectly suited for their needs. Contact us today to discuss your gas monitoring requirements further.

Landfill Gas, consisting of Methane, Carbon Dioxide, and Oxygen, is produced during waste decomposition in landfills, making it a significant contributor to environmental pollution. To mitigate its impact, landfill operators in places like Jakarta, Surabaya, and Bandung use wellheads, pumps, and piping to collect gases for processing. Options include burning via flare systems or converting it into renewable energy. Accurate measurement and collection of these gases are crucial for environmental and financial reasons, as many landfills consider gas a revenue stream. Our thermal mass flow meters, such as the versatile Model #62-9, play a crucial role in quantifying Landfill Gas production to comply with regulations. We collaborate closely with customers to calibrate meters precisely to the gas mixture and operational conditions, ensuring accuracy. Equipped with insertion probes and standard outputs, our meters enable quick setup, facilitating efficient measurement and utilization of landfill gases for renewable energy generation. Contact us to learn more about our tailored solutions for landfill gas management.

Mass flow meters play a vital role in the upstream oil and gas sector in Indonesia, especially in measuring vent flare gas at wellhead sites. This data not only ensures compliance with environmental regulations but also provides valuable insights for operational efficiency and production allocation. Venting and flaring waste gases are common practices across industries like oil and gas, chemical processing, refining, natural gas plants, and environmental waste treatment sites. Government agencies mandate strict monitoring and recording of these emissions to adhere to regulations such as 40 CFR 98 Sub Part W by the EPA.

Thermal mass flow meters are the preferred solution for monitoring vented or flared gas emissions. They are essential for ensuring the proper operation of venting systems, meeting regulatory guidelines, and facilitating compliance with reporting requirements. As vented and flared systems become more prevalent for waste gas disposal, accurate flow rate measurement becomes increasingly critical for regulatory compliance across industries such as natural gas drilling, oil production, chemical processing, and wastewater treatment.

In Indonesia, as manufacturing industries continue to expand in areas like Jakarta, Surabaya, and Bandung, the efficient management of compressed air systems is crucial for cost-effective operations. Thermal mass flow technology plays a vital role in this process by offering significant advantages in monitoring and optimizing compressed air flow rates. Unlike traditional methods such as orifice plates, thermal mass flow meters provide accurate measurements across a wide range of flow rates without being affected by temperature or pressure fluctuations. This accuracy is essential for identifying and addressing leaks efficiently, helping companies minimize energy waste and reduce operating costs.

Many businesses in these industrial hubs have benefited from upgrading older compressor systems with newer, more efficient equipment. By incorporating thermal mass flow meters into their systems, companies have reported substantial savings, with some experiencing up to $35,000 in annual savings after replacing outdated systems and fixing leaks. Thermal mass flow meters boast high turndown ratios and precise accuracy, making them ideal for detecting even the smallest leaks and optimizing compressor efficiency.

INLINE THERMAL MASS FLOW METERS

Model 600-9SAN

Thermal Instrument offers diverse flow meters tailored to clients’ needs. Our Model# 600-9 SAN flow sensor mirrors the benefits of our #600-9, catering to sanitary process conditions. Crafted from 316L SS with a 15 Ra flow wetted surface finish, it ensures durability. 

Featuring tri-clamp and tube end connections, each unit includes redundant Flow and Temperature RTD sensors. Delivering 4-20 mA outputs for flow and temperature information, our sensors are calibrated for various liquids and gases, including those in food, beverage, and pharmaceutical industries. 

We specialize in fuel and water flow meters, calibrated for air, carbon dioxide, DI water, food additives, dairy products, and more.

  • Food & Beverage Applications
  • Pharmaceutical CIP Applications
  • Available in a wide variety of OD sizes
  • 316L SS Standard Material of construction
  • 15Ra Flow Wetted Surface finish
  • 3A Sanitary Approval
  • Flow sensors can hold up to the demands of “CIP” conditions

APPLICATIONS:

Our Inline Model #600-9SAN mass flow meter revolutionizes Clean-in-Place (CIP) applications, a vital process widely used in industries like pharmaceutical manufacturing. In burgeoning pharmaceutical hubs like Palembang, Denpasar, and Pontianak, our mass flow meter is indispensable. Tailored to precisely measure DI Water, it plays a pivotal role in sterilizing process piping and equipment, ensuring compliance with FDA regulations and product safety standards.

The lack of conductivity in DI water poses a challenge for many technologies, but our Mass Flow technology overcomes this obstacle with its wide turndown flow ranges, temperature capabilities, and unobstructed flow path. This versatility makes it ideal for various pharmaceutical applications, from equipment cleaning to precise measurements during tablet coating.

Our mass flow meter offers customizable Face to Face dimensions, accommodating piping from 1/4″ OD up to 4″ OD sanitary tubing. With a standard 15 RA finished interior surface and options like Tri-Clamp, VCO, or VCR connections, installation is seamless, saving time and ensuring compatibility with existing infrastructure.

CIP is crucial in pharmaceutical manufacturing, involving thorough cleaning and sterilization using DI Water and sterilizing agents. Our mass flow meter ensures precise measurement of DI Water flow rates, guaranteeing the effectiveness of the CIP process and regulatory compliance.

Furthermore, our mass flow meters serve other roles in pharmaceutical manufacturing, such as measuring spray quantities during tablet coating and monitoring air flow during tablet compression. By maintaining quality standards throughout these processes, our mass flow meter contributes to the production of safe and high-quality pharmaceutical products in Indonesia and beyond.

Thermal Instrument offers a versatile range of flow meters tailored to meet the diverse needs of industrial processes in Indonesia. Our Preferred Models #600-9, 62-9, and 600-9SAN are calibrated to measure liquid or gas flow with exceptional accuracy and repeatability. These meters incur minimal pressure drops and can be calibrated on fluids provided by the customer, making them suitable for various applications across industries.

For instance, our thermal mass flow meters are commonly used in carbon dioxide measurement for beverage bottling, natural gas flow to dryers and ovens, hot air flow measurement, and water measurement in food and beverage manufacturing processes. We offer customization options based on sizing, process connections, outputs, surface finishes, and electronic transmitters to precisely meet your process requirements.

The Insertion Probe Model #62-9 is perfect for measuring hot air in drying applications and water flow in larger line sizes, boasting easy installation and maintenance with multiple connection options. The In-line unit Model #600-9 is widely utilized for CO2 measurement in beverage carbonation and bottling, as well as sub-metering applications, offering flexibility in process connections and compatibility with Clean-In-Place processes.

Furthermore, our Sanitary Unit Model #600-9SAN, compliant with 3A Sanitary Standards, comes in various sizes with Tri-Clamp or Tube Ends connections, ensuring hygiene and reliability in food and pharmaceutical industries. For detailed certifications and product specifications, explore our website and discover how Thermal Instrument can elevate your industrial processes.

 Thermal mass flow meters excel in accurately measuring low flow rates, crucial for semiconductor manufacturing processes. Our flow meters offer high precision and consistency, ensuring reliable measurement results for critical operations. Thermal Instrument flow meters provide accurate measurement of clean gases such as Hydrogen, Nitrogen, Oxygen, Argon, and Silane, essential for semiconductor fabrication. It is designed for ultra-high-purity environments, our flow meters maintain the integrity of semiconductor manufacturing processes. With a surface finish of 15 Ra, our flow meters ensure optimal flow wetting, minimizing the risk of contamination in semiconductor production.

 Our flow meters enable precise monitoring of gas levels in tank farms, ensuring efficient gas management in semiconductor facilities. Thermal Instrument flow meters facilitate sub-metering across various production sectors within semiconductor facilities, allowing for accurate gas usage tracking.

Also, our flow meters accurately measure a wide range of gases used in semiconductor manufacturing processes, including Hydrogen, Nitrogen, Oxygen, Argon, and Silane.

In the semiconductor industry, where precise measurement of low flows is essential, Thermal Instrument flow meters are highly effective. Our Ultra-High-Purity (UHP) in-line thermal mass flow meters (Model # 600-9UHP) are specifically designed for semiconductor manufacturing processes involving ultra-high-purity gases. With sizes ranging from ¼” OD to 3” OD and various process connections available, our flow meters are trusted components in some of the world’s largest semiconductor production facilities. Contact us to learn more about our tailored solutions for the semiconductor industry.

In Indonesia, industries face similar regulatory pressures regarding gas consumption monitoring, particularly in areas like Jakarta, Surabaya, and Bandung. Compliance with regulations is essential, as governmental mandates require precise monitoring beyond standard gas meters. Thermal mass flow technology emerges as the preferred solution, offering accurate measurement and reporting capabilities crucial for regulatory compliance. Many businesses in these urban centers rely on Thermal Instrument’s insertion and in-line thermal mass flow meters for gas monitoring. These meters ensure precise measurement with minimal pressure drops, making them ideal for optimizing air-to-fuel ratios in burner systems. Unlike other flow meters, Thermal Instrument’s solutions require no pressure or temperature compensation, simplifying installation and ensuring consistent readings proportional to gas mass flow. For industries seeking compliance with regulatory mandates and efficient gas management, Thermal Instrument provides tailored solutions perfectly suited for their needs. Contact us today to discuss your gas monitoring requirements further.

Model 600-9

  • Variety of Connections Available
  • Unobstructed Flow Path
  • Negligible Pressure Drop
  • Highly Accurate – ± 1% Accuracy across Full Scale in most applications
  • Repeatable Rates – ± 2%
  • 100:1 Turndown or better on most applications
  • Small Line sizes down to ¼”
  • Large Line sizes up to 12”
  • Capable of providing Flow and Temperature details across independent 4-20mA outputs
  • Numerous Process Connections Available – Flange, NPT, Tube Ends, etc.
  • Redundant Sensors
  • Protective Coatings Available
  • Exotic materials including Tantalum, Hastelloy-C, Titanium, and Monel
  • Long Life = Return on Investment
  • Available in Sanitary & Ultra High Pure Finishes
  • Great for air & gas measurement
  • Great for water & other liquid measurement

Thermal Instrument pioneered the development of in-line flow meters, boasting a unique design that ensures the flow and temperature sensor remain shielded from passing fluids at all times. Our exclusive in-line gas flow meters and liquid flow meters guarantee exceptional accuracy and repeatability, instilling confidence in our clients. With the versatile 600-9 model, we offer a wide range of process connections for swift installation, catering to demanding flow applications.

Our mass flow sensors feature redundant Flow and Temperature RTD sensors, ensuring longevity and maximizing return on investment. Stay informed about your flow meters’ status with the 600-9 flow sensor, providing crucial flow and temperature data via a 4-20mA output connection.

The Model#600-9 boasts an unobstructed flow path adaptable to line sizes ranging from ¼” to 12”, minimizing pressure drop and enhancing operational efficiency. Customizable to fit specific requirements, our flow sensors are constructed with robust materials like Hastelloy-C, Tantalum, Titanium, Monel, and more, ensuring durability even in corrosive environments.

The Model#600-9 can be customized for corrosive or demanding applications. We offer various connection options, including flange connections, NPT sizes, and adaptable tube ends. Additionally, protective coatings can be applied to wetted surfaces, providing enhanced corrosive protection and peace of mind in challenging environments.

APPLICATIONS:

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