As global industries place increasing emphasis on accurate, stable, and repeatable gas flow measurement, Metlan Instruments today announced the continued expansion of its gas flow measurement portfolio, featuring advanced thermal mass flow meters and mass flow controllers designed for demanding industrial and analytical applications.
With over 20 years of experience in flow measurement manufacturing and OEM collaboration, Metlan Instruments delivers gas flow solutions that address one of the most critical challenges in modern process control: measuring and controlling gas mass flow accurately under real-world operating conditions.
Why Gas Flow Measurement Matters More Than Ever
Gas flow measurement plays a vital role in industries ranging from chemical processing, semiconductor manufacturing, energy production, and environmental monitoring to laboratory analysis and OEM equipment design. Unlike liquid flow, gas flow is highly sensitive to changes in temperature, pressure, density, and composition, making traditional volumetric measurement methods prone to error and instability.
“In gas applications, what truly matters is mass flow, not volume,” explained a Metlan Instruments representative. “Accurate gas flow measurement directly impacts process efficiency, safety, emissions control, and product consistency. That is why we focus on technologies that measure gas flow by mass, not inferred volume.”
Direct Mass Measurement with Thermal Mass Flow Technology
Metlan Instruments’ thermal mass flow meters are engineered specifically for direct gas mass flow measurement, eliminating the need for external temperature or pressure compensation.
Thermal mass flow technology operates by measuring the heat transfer from a heated sensor element to the flowing gas. Because the heat loss is directly proportional to the mass flow rate, the instrument delivers a true mass flow signal independent of pressure and temperature fluctuations.
This principle makes thermal mass flow meters especially suitable for gas flow applications such as:
- Compressed air and industrial gases
- Natural gas and biogas monitoring
- Nitrogen, oxygen, hydrogen, and mixed gases
- Emissions monitoring and environmental systems
- Semiconductor and electronics manufacturing processes
Key Advantages for Gas Flow Measurement
Metlan’s thermal mass flow meters are designed to meet the specific demands of gas measurement environments:
- Wide Measuring Range with Ultra-Low Flow Capability: Metlan’s thermal mass flow meters feature an exceptionally wide turndown ratio of 2500:1, enabling accurate measurement from as low as 0.1 Nm/s up to 250 Nm/s.
- Integrated Chip-based Sensors: Unlike other thermal mass flow meter suppliers who use dual-probe sensors encased in domestic thermal conductive adhesive, which often results in data drift over time, their integrated chip-based design ensures long-term stability and measurement precision.
- Advanced Full-Digital Signal Processing: These meters use full-digital signal processing to deliver higher accuracy (up to ±1% RD + 0.3% FS), improved zero-point stability, and long-term drift resistance.
- Intelligent Sensor Diagnostics: With built-in intelligent diagnostic capabilities, their flow meters can detect sensor contamination or overheating before it impacts measurement accuracy, to help reduce maintenance and extend service life.
By directly measuring gas mass flow, Metlan’s thermal meters reduce uncertainty, simplify system design, and lower total cost of ownership for industrial users.
Precision Gas Control at Low Flow Rates
In many gas systems, measurement alone is not sufficient, precise flow control is equally essential. To address this need, Metlan Instruments offers a dedicated line of low-flow mass flow controllers, optimized for low and ultra-low gas flow applications.
These devices integrate high-accuracy mass flow sensing with control valves and closed-loop feedback, enabling users to measure and regulate gas flow simultaneously.
Designed for Critical Low-Flow Gas Applications
Metlan’s low-flow gas solutions are widely used in:
- Gas mixing and blending systems
- Analytical and laboratory instruments
- Environmental testing and calibration equipment
- Fuel cell and hydrogen research
- Medical and life-science gas delivery systems
Key performance features include:
- Accurate measurement at very low flow rates, often down to sccm levels
- Fast control response, maintaining stable flow even under pressure variations
- Compact form factor, ideal for OEM integration and space-constrained installations
- Multiple output and communication options, supporting analog and digital control systems
These capabilities allow engineers to maintain precise gas flow setpoints, ensuring process repeatability and system reliability.
Built for Stability, Repeatability, and Traceability
In gas flow measurement, long-term stability is just as important as initial accuracy. Metlan Instruments addresses this through a rigorous approach to calibration, quality control, and traceability.
Every gas flow meter and controller is:
- Individually calibrated using controlled gas flow standards
- Assigned a unique serial number linked to its calibration data
- Tested across operating ranges to ensure repeatability and consistency
- Delivered with complete technical documentation for validation and audit requirements
This commitment ensures that Metlan’s gas flow instruments perform reliably not only at commissioning, but throughout their operational lifetime.
A Trusted Partner in Gas Flow Measurement
Metlan Instruments positions itself not just as a product supplier, but as a technical partner for customers who require dependable gas flow measurement solutions.
By combining in-house manufacturing, engineering expertise, and OEM-level customization, Metlan supports clients with:
- Application-specific gas calibration
- Customized flow ranges and sensor configurations
- Integration support for industrial and analytical systems
- Long-term supply stability for OEM projects
This approach has enabled Metlan Instruments to serve customers across Europe, Asia, the Middle East, and the Americas, supporting both standard industrial applications and highly specialized gas flow measurement requirements.
Source: FG Newswire