MASS-STREAM: thermal mass flow meter for gases
The MASS-STREAM is an inline thermal mass flow meter for gases with an integrated display, made in Germany since 1997. It measures the gas directly through the flow path (no bypass), so it is less sensitive to dirt and moisture and causes only a low pressure drop. Because it measures true mass flow, no pressure or temperature correction is needed. It is used in laboratories, machine building, OEM equipment and industrial processes.
- 4 models from 0.5–50 ln/min up to 10–1000 ln/min (Air equivalent)
- 6 pre-installed gases: Air, N2, O2, Ar, CH4 and CO2, selectable on the instrument
- Colour TFT display (IP65) showing actual flow, totalizer and alarms
- 4–20 mA and RS-232 outputs for easy integration
- Configure gases, units, alarms and counters with the free Bronkhorst FlowSuite software
Need lower flows from 0.1 mln/min, or hydrogen and helium? See the compact FLEXI-FLOW thermal mass flow meter.
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Maximum flow capacity per gas
| Model | Measuring range (Air) | Air | N2 | O2 | Ar | CH4 | CO2 |
|---|---|---|---|---|---|---|---|
| MS-105 | 0.5 – 50 | 50 | 50 | 48 | 100 | 30 | 54 |
| MS-106 | 2 – 200 | 200 | 200 | 200 | 400 | 120 | 215 |
| MS-108 | 5 – 500 | 500 | 500 | 500 | 1000 | 300 | 545 |
| MS-109 | 10 – 1000 | 1000 | 1000 | 1000 | 1200 | 600 | 1080 |
Values are maximum capacities at standard conditions. Need lower flows or other gases such as H2 or He? See the FLEXI-FLOW Compact.
Which thermal mass flow meter is best for gas?
The thermal Mass Stream Bronkhorst® mass flow meters for gases based on direct through-flow measurement are produced in Germany since 1997.
The MASS-STREAM™ series D-6400 works following the constant temperature anemometer principle. Our MASS-STREAM™ instruments cover a wide range of measurement and control applications in almost every industry sector - like mechanical engineering and process industry, gas production, food and beverage industry as well as environmental engineering and the chemical industry.
- The MASS-STREAM thermal mass flowmeter series operate on the principle of direct thermal mass flow measurement (no by-pass); rather than measuring the volume flow it measures the actual mass flow, without the need of temperature and pressure correction.
- The modern multi-coloured TFT display provides an multi-functional display: actual flow, fluid sets, totalizer with memory and reset, alarm, setup and more.
- These models have 6 pre-installed gases on board that can be set via the onboard display; Air, Nitrogen(N2), Oxygen(O2), Argon(Ar), Methane(CH4), Carbon dioxide(CO2)
- The digital thermal gas mass flow meters are standard equipped with 4…20 mA and RS-232 output signals.
- The highly accurate FLUIDAT gas database ensures best in class conversion from Air to the customer gas. Additionally, the on-board gas database is used for real-time corrections of the flow measurement based on the actual process temperature.
Where Can I Buy a Thermal Mass Flow Meter for Gases Online?
MassFlow-Online.com is a trusted European webshop for engineers, researchers, and industrial users looking to buy flow meters online. We offer a complete range of MASS-STREAM® thermal mass flow meters for gases, providing accurate, stable, and repeatable gas flow measurements under varying process conditions.
The MASS-STREAM range consists of four inline thermal mass flow meter models with measuring ranges from 0.5...50 ln/min up to 10...1000 ln/min Air equivalent. Each instrument can measure Air, N₂, O₂, Ar, CH₄, CO₂, and many other gases, making it a versatile industrial gas flow meter for laboratory, OEM, and process applications.
Manufactured in Germany and shipped worldwide, MASS-STREAM instruments combine proven thermal measurement technology with a clear digital display, and onboard gas selection. Whether you are looking for a digital thermal mass flow meter for a research laboratory, machine builder, or industrial production process, we offer expert advice and fast delivery throughout Europe and beyond.
Whether you want to buy a thermal mass flow meter online or purchase a thermal mass flow meter through a bank transfer quotation, ordering takes just a few minutes.
Mass Flow Online benefits:
- High-quality engineered flow meters
- Guaranteed delivery
- Shipment within 2 business days
- Safe and secure online shopping
- Payment by Credit Card, PayPal, or Bank Transfer
- Expert technical support before and after purchase
- Worldwide shipping
Order your thermal mass flow meter today and benefit from certified calibration, a digital display, onboard gas conversion, and six pre-installed gases.
Which Thermal Mass Flow Meter Is Best for Measuring Nitrogen or Air?
The MASS-STREAM thermal mass flow meter is an inline thermal mass flow meter designed for accurate and reliable gas flow measurement in industrial, laboratory, and OEM applications. As a digital thermal gas mass flow meter, it combines excellent accuracy, repeatability, and ease of use in a compact and robust design.
The instrument is factory-calibrated using air as the reference gas, making it an excellent air flow meter for demanding applications. By utilizing advanced gas conversion models, the MASS-STREAM can also be used as a highly accurate nitrogen mass flow meter with minimal loss of accuracy.
Designed as a versatile industrial gas flow meter, every MASS-STREAM instrument includes six pre-installed gases: Air, N₂, O₂, Ar, CH₄, and CO₂. This allows a single device to be used as a methane flow meter, CO₂ mass flow meter, nitrogen mass flow meter, or argon gas mass flow meter without requiring separate hardware or recalibration.
As a modern thermal gas flow meter, the MASS-STREAM series offers users maximum flexibility through onboard gas selection, digital communication, and easy configuration via Bronkhorst FlowSuite software.
Key features of the inline MASS-STREAM series:
- Multi-coloured TFT display with operator buttons (IP65 compliant)
- Ideal for industrial gases (6 pre-installed gases with FluidatOnBoard)
- Excellent accuracy and repeatability
- Less sensitive to contamination, like dirt, moisture and/or humidity
- Low pressure drop across sensor
- Compact and robust design
- Suitable for sub-atmospheric applications
- Analog 4-20 mA and digital RS-232 communication
Whether you need a thermal gas flow meter for industrial processes, research laboratories, machine building, or quality control applications, we offer fast delivery, expert technical support, and competitive pricing. Discover the MASS-STREAM Thermal Mass Flow Meter for Gases and find the ideal solution for measuring air, nitrogen, methane, argon, CO₂, and other industrial gases.
What Is the Price of a Thermal Mass Flow Meter?
The price of the thermal mass flow meter starts at € 1330,- for the MASS-STREAM and our digital VA MASS-VIEW at € 799,-
Each product page shows the exact price, current stock availability, and technical specifications, helping you make an informed purchasing decision quickly and easily.
Ordering is simple: just create a free account and follow the step-by-step checkout process. You can pay online securely via Credit Card or PayPal.
Prefer a bank transfer? No problem, you'll receive a pro forma invoice to complete the order.
Once payment is received, your order is processed immediately and shipped within 2 working days.
With transparent pricing and fast fulfillment, buying a thermal mass flow meter online has never been easier.