A thermal flow sensor uses a fluid's capacity to carry calories from a heating element to a sensing element to measure mass flow, which is proportional to the thermal transfer.
These devices monitor cooling and lubricating circuits and detect leaks and absence of fluid (for pump protection) in the beverage industry, metallurgy, the chemical and automobile industries, and in heating and air conditioning. Sensors are designed for particular fluids: water, oil, corrosive liquids or gases.
Thermal sensors measure the flow of homogeneous liquids and gases with very little energy loss. They have no moving parts, making them sturdy and reliable. An in-line sensor resembles a conduit section, while a threaded insertion model uses a clamp or a compression connector. Sensors are calibrated for volume rather than mass. They are suitable for measuring the flow of fluids of known specific heat and density.
Gas flow is measured by a hot wire or hot film sensor. The former consists of a heating wire placed tangential to the flow, whose rate is calculated on the basis of its cooling effect on the wire. The latter has a heating surface oriented in the direction of the flow. Upstream and downstream heat sensors measure the temperature difference and, thus, the flow rate.
Choice will depend on fluid type, mounting configuration, measurement accuracy and type of signal or available ports.
- Low energy loss
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Thermal flow and temperature sensor max. 100 l/min, IP67 | SM series ifm electronic
With flow rate, totalising and temperature indication. High accuracy, repeatability and measurement dynamics. Suitable for conductive media from 20 ìS/cm, flow rate up to 100 l/min. Also available with EPDM O-ring for drinking water applications. Different process connections...
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Thin-film thermal mass air flow sensor Honeywell Sensing and Control
All airflow sensors operate on heat transfer — flow and differential pressure. Silicon chip design is created from thin-film, thermally isolated bridge structure,...
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Thermal flow sensor for liquids TURCK
Flow sensors are applied in automated manufacturing to detect deviating flow speeds of gases and liquids quickly and reliably. They are not...
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Thermal flow sensor with integrated digital display FM-200 Matsushita Electric Works
Integrated Display Type Digital Flow Sensor FM-200 Dual color with sub display at a glance Easy-to-read...
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Thermal flow sensor for liquids SW-600 Series RECHNER
The SW-600 series is a range of flow sensors based on the calorimetric measuring principle. This priciple is based on the physical effect...
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Thermal flow sensor for liquids 1 - 200 ml/min | SDN 503 series EGE
The inline flow controllers of the series 503 with tube fittings are highly resistant to aggressive media and provide fast reaction times....
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Thermal gas flow sensor max. 200 °C | TA2 MAGNETROL
Thermatel® Model TA2 Thermal Mass Flow Transmitter provides reliable mass measurement for air and gas flow applications. The powerful, yet easy to use, electronics are contained in a compact explosion proof enclosure. The...
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Insertion type thermal gas flow sensor max. 120°C | SS 20.260 SCHMIDT Technology
SCHMIDT® Flow-sensor SS 20.260 for process technology For the employment in process technology the latest SCHMIDT® flow sensor SS 20.260 offers three crucial upgrades compared to his forerunner. With an expanded measuring range of 0 … 50 m/s the sensor can be applied for flow rate control in a wide range of systems. Many processes require the measurement of heated gases and therefore an enhanced...
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Thermal air flow sensor max. 20 m/s | SF/C FuehlerSysteme eNET International GmbH
The SF/C flow / temperature sensor measures the airflow rate from 0-20 m/s and optional thetemperature from 0...+50°C of the ambient air. The transducer converts the...
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Thermal air flow sensor 3D-MID 2E mechatronic GmbH & Co. KG
The new thermal membrane-based flow sensor of 2E mechatronic for measuring smallest pressure differences was developed in collaboration with the HSG-IMIT, the MMA AG and the company Gruner AG. It...
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Thermal flow sensor DL8-10 M.A.E. S.r.l.
DL 8 is a compact and affordable data logger for structural and environmental monitoring. The low purchase and management costs render it ideal for all monitoring applications which require flexibility, prompt installation, and facility to manage...
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Thermal gas flow sensor EYC FTS64 / EYC FTS65 EYC-TECH CO., LTD.
Air velocity transmitter - Against high pressure type Installation: duct-mounting, remote type Option: 5-meter cable (Remote type), LCD display Features: *Measuring...
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Thermal flow sensor for liquids F12 - CF12RM Sitron
Flow Switch for Liquids and Gases Supply: Output Consumption: Set Point: Accuracy: Response time: Operating...
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Thermal gas flow sensor FM-200K-H M&C TechGroup Germany
Electrically heated version, max. 180 °C Needle valve integrated in the inlet Large scaling Sure connection technique...
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Thermal air flow sensor SCCM, SCFM SDT International
This is a thermal based mass flow sensor fitted with an incorporated conditioning and temperature compensation...
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Thermal flow sensor for HVAC max. 5 m/s | ThermoAir6/64 Schiltknecht Messtechnik
General description : Thermoelectrical Airflow-Probe Measuring range 0.01 - 5 m/s Outputsignals...
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Thermal flow and temperature sensor 380 Btu Meter series Badger Meter
The Data Industrial® Series 380 Btu meter from Badger Meter is an all-in-one energy usage package for monitoring hydronic heating or cooling systems. The Series 380 Btu meter can accurately measure flow and temperature differential to compute energy. Utilizing...
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Thermal flow sensor for liquids FK series Proxitron GmbH
Sensor and evaluation device in one housing Stainless steel sensor head in different thread types (see table) 4-conductor cable, voltage 20-36VDC Teach-In The...
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Thin-film thermal mass flow sensor for liquids and gas 0 - 100 m/s, -20 - 150 °C | FS5 IST AG
Flow Sens FS5 Thermal Mass Flow Sensor for all-purpose use in Gases: The flow Sens FS5 is successor of the proven FS1 and is characterised by a thermally more efficient sensor structure, which exhibits with same electrical connected loads a higher chip temperature and is thus more sensitive. The Flow sensor element consists of two temperature depending...
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Thermal air flow sensor Radiodetection
Solid State Flow Sensors Designed to monitor for positive presence of cooling airflow, this velocity sensor operates on 5V DC. The sensor can be mounted on a board, in a socket, or hard-wired to a bracket. The SAF is an AMBIENT COMPENSATED device affording...
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Thermal air flow sensor Sensata Technologies
Klixon is a world leader in the design and manufacture of air flow sensors. We build devices that are high-quality, dependable, and reasonably priced....
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The T-CDI-5400-20S is a flowmeter for compressed air systems. It measures flow by maintaining one probe warmer than the other. It calculates...
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Seal damages and leakage identification fluid-Check Monitoring flow rate and wear of pumps Description Via a hole in the pipe (plastic...
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Thermal gas flow sensor vent-captor™ WEBER Sensors
Air Flow Sensors Based on the Calorimetric Principle for Air or Gaseous Media. Compact, Precise, Rugged and Reliable vent-captors are compact, self-contained flow sensors that work according to a calorimetric...
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Thermal flow sensor for liquids max. 300 cm/s, G½ | SS906020 ipf electronic
Product Strömungssensoren Description sensor strömung...
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The Signet 9900 Transmitter provides a single channel interface for many different parameters including Flow, pH/ORP, Conductivity/Resistivity, Salinity, Pressure, Temperature, Level and other sensors that output a 4 to 20 mA signal. The extra large (3.90” x 3.90”) auto-sensing backlit display features “at-a-glance”...
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Thermal mass flow-meter DN 15 - 50, 100 °C | t-mass A 150 ENDRESS HAUSER
Thermal Mass Flow Measuring System For easy and cost-effective measurement of utility gases Your benefits The device enables direct measurement of the mass flow of...
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Clear indication in: - actual flow rate (bar graph and value) - desired flow units - type of gas - totalised flow Bright, wide-angle...
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Thermal mass flow-meter for liquids 0 - 20 kg/h | LIQUI-FLOW® series L30 Bronkhorst
LIQUI-FLOW Pump Control, precise liquid dosage using a flow meter controlled pump. Liquid Mass Flow Meters based on the thermal measuring principle (series L10/L20)close-coupled...
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In-line thermal mass flow-meter for gas 0.5 - 200 Nm/s | EE771 E E ELEKTRONIK
Flow meter for compressed air and gases EE771 The EE771 is a thermal mass flow meter for compressed air and gases. Irrespective of pressure and temperature,...
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In-line thermal mass flow-meter for gas FMA1000 Series OMEGA
The FMA1000 Series industrial air velocity and temperature transmitter/indicator measures and displays air velocity as well as air temperature in research and development labs, HVAC applications, and other manufacturing...
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In-line thermal mass flow-meter for gas 1 - 100 kg/h, RS 232 | FMT200-ECO2 ABB Measurement Products
Sensyflow FMT200-ECO2 is a very compact and extremely dynamic mass flow meter for air. It offers a direct mass or standard volume flow measurement in pneumatic...
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Measuring range : from 0/+10 Pa to -10 000/+10 000 Pa Configurable intermediary and central zero ranges Air velocity and airflow functions Interchangeable measuring sensor (SPI technology) Simultaneous display of 1 to 4 parameters External transmitter unputs (KIMO class 200 and 300) and thermocouple K 2 output...
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Thermal mass flow-meter for gas BURKERT FLUID CONTROL SYSTEMS
Massflow under control Massflow gas measurement is independant of temperature and...
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Thermal mass flow-meter AXETRIS MFM 2100 Series LEISTER Technologies AG
MFM 21x0: A stand-alone mass flow meter with a complete housing that provides environmental and electrical protection...
