## [Air velocity and flow measurement on fume cupboards](/en-GB/solutions/air-velocity-flow-measurement-fume-cupboards-hoods) ![airflow rate velocity fume hoods cupboards](/sites/default/files/entityone_paragraphs/images/SOLUTION_Intro_468x468_8.png) ## Laboratory inspection and safety Essential for operators’ safety, fume hoods prevent contamination of ambient air by maintaining a constant suction flow at the front. Kimo instruments and Sauermann services ensure that this air flow is properly controlled. Safety standards require several test points, some of which are crucial: mapping of face velocities, measurement of outlet airflow, and measurement of ambient airflow within the laboratory. Sauermann offers end-to-end solutions for these performance tests. ## Parameters to be monitored - **Air velocity and airflow** Frontal velocity mapping ## Frontal velocity mapping This mapping involves taking measurements at several points on the front side to check the homogeneity and velocity of the inflowing air. Kimo hot-wire anemometers (± 3% VL, ± 0.03 m/s) guarantee the accuracy of these measurements. The number of measurement points depends on the width of the fume cupboard, and the recommended average velocity is 0.4 m/s, evenly applied to each point. Our probe extensions and telescopic hot wires allow you to avoid standing in front of the fume cupboard, in order not to disrupt the air flow. [All our portable instruments](/en-GB/measuring-instruments/portable-instruments) [ read more about AMI 310 ](/en-GB/measuring-instruments/portable-instruments/multifunctions/ami-310) [![ami310](/sites/default/files/styles/medium/public/images/ami310.jpg?itok=hqLZSHF6)](/en-GB/measuring-instruments/portable-instruments/multifunctions/ami-310) #### AMI 310 Multifunction Kimo’s AMI 310 measures simultaneous parameters including pressure, temperature (Pt100 and thermocouple), humidity, air quality (CO/CO2), air velocity, airflow (vane probes and hotwire), and tachometry. [ read more about VT 210 ](/en-GB/measuring-instruments/portable-instruments/multifunctions/vt-210) [![vt210](/sites/default/files/styles/medium/public/images/vt210.jpg?itok=9VeIq4pr)](/en-GB/measuring-instruments/portable-instruments/multifunctions/vt-210) #### VT 210 Thermo-hygrometer-anemometer Specially designed for the control of ventilation systems, the VT 210 allows users to measure the air velocity, the airflow and the temperature in ducts. [ read more about Air velocity hot wire probes ](/en-GB/measuring-instruments/portable-instruments/probes/air-velocity-hot-wire-probes) [![sonde-vitesse](/sites/default/files/styles/medium/public/images/sondes-vitesse-fil-chaud.png?itok=CVuoPDsX)](/en-GB/measuring-instruments/portable-instruments/probes/air-velocity-hot-wire-probes) #### Air velocity hot wire probes For class 210 / 310 multi-function portables Kimo`s hot wire probes measure air velocity and temperature. ![airflow rate velocity fume hoods cupboards](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits01_Cartographie_699x393.png?itok=YQz9YC-2) Exhaust air flow measurement ## Exhaust air flow measurement The exhaust airflow rate extracted from the fume hood is an essential measurement for monitoring its suction performance. It can be measured on the fume cupboard outlet duct (portable instrument, hot-wire sensor) or even in the technical area (transmitter). If the flow rate is too low, the fume cupboard cannot guarantee proper extraction of emanations, which could then contaminate the surrounding air. If the flow rate is too high, turbulence may also compromise containment and reduce the energy efficiency of the system. [All our transmitters](https://sauermanngroup.com/en-GB/measuring-instruments/transmitters) [ read more about Si-C320 ](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-c320) [![compo Si-C320](/sites/default/files/styles/medium/public/images/COMPO-C320-3_1.png?itok=CVVFXIGz)](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-c320) #### Si-C320 Multifunction transmitter For clean rooms, regulated environments and industrial VAC applications where a perfect regulation/monitoring of the air parameters is needed, our Si-C320 transmitters provide reliable measurements and allow you to achieve compliance with the strictest regulations. The Si-C320 housing is waterproof, rugged and resistant to vaporised hydrogen peroxide (VHP). It also features a colour touch screen for comprehensive viewing and advanced control of measurement parameters. In addition, measurements can be recorded and downloaded via the Sauermann Control application/software. [See all available models](https://sauermanngroup.com/sites/default/files/2024-03/Transmitters-Selection-Guide_2024-03_EN_0.pdf) [ read more about CTV 210-R ](/en-GB/measuring-instruments/transmitters/air-velocity-transmitters/ctv-210-r) [![ctv 210](/sites/default/files/styles/medium/public/images/ctv210.jpg?itok=_047ae45)](/en-GB/measuring-instruments/transmitters/air-velocity-transmitters/ctv-210-r) #### CTV 210-R Air velocity and temperature sensor Kimo’s CTV 210-R is a transmitter with hotwire probe measuring air velocity from 0 to 30 m/s and temperature from 0 to +50°C. [ read more about Air velocity hotwire probe ](/en-GB/measuring-instruments/transmitters/probes/air-velocity-hotwire-probe) [![Si-PRO-V-300](/sites/default/files/styles/medium/public/images/SI-PRO-V-300.png?itok=3DBloc5x)](/en-GB/measuring-instruments/transmitters/probes/air-velocity-hotwire-probe) #### Air velocity hotwire probe For class 320 transmitters Interchangeable hotwire probe for air velocity and temperature measurements. Stainless steel body length 267 mm (10.51''), Ø 8 mm (0.31''). Thanks to its design, it minimises the impact of the angle of the airflow on the measurements. Main applications: laminar flow monitoring in clean rooms, isolators, glove boxes, fume hoods, isolation cabinets, pharma/cosmetic and semiconductors manufacturing facilities. *[Si-ACC-RVP](https://sauermanngroup.com/en-INT/node/34903) probe cable for connection to class 320 transmitters is needed.* ![airflow rate velocity fume hoods cupboards](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits02_Mesure-debit-air_699x393.png?itok=nd0ieBCW) Ambient velocity measurement ## Ambient velocity measurement The behaviour of the ambient air around the fume hood (ventilation system, door openings) must also be monitored, as it can interfere with the flow of air drawn into it. An omnidirectional hot-wire probe is essential for this type of measurement. Given the very low velocities required (0.2 m/s), the accuracy of the measuring instruments is crucial. A Kimo device with an omnidirectional hot-wire probe measures the average velocity of ambient air, regardless of flow direction, with an accuracy of ± 0.05 m/s and a resolution of 0.01 m/s. [All our portable instruments](https://sauermanngroup.com/en-GB/measuring-instruments/portable-instruments) [ read more about AMI 310 ](/en-GB/measuring-instruments/portable-instruments/multifunctions/ami-310) [![ami310](/sites/default/files/styles/medium/public/images/ami310.jpg?itok=hqLZSHF6)](/en-GB/measuring-instruments/portable-instruments/multifunctions/ami-310) #### AMI 310 Multifunction Kimo’s AMI 310 measures simultaneous parameters including pressure, temperature (Pt100 and thermocouple), humidity, air quality (CO/CO2), air velocity, airflow (vane probes and hotwire), and tachometry. [ read more about HQ 210 ](/en-GB/measuring-instruments/portable-instruments/multifunctions/hq-210) [![HQ210](/sites/default/files/styles/medium/public/images/hq210.jpg?itok=ilkfC0Tn)](/en-GB/measuring-instruments/portable-instruments/multifunctions/hq-210) #### HQ 210 Thermo-hygrometer - Air quality The Kimo HQ 210, with its climatic condition module, measures CO2, humidity and temperature. [ read more about Omnidirectional probe SOM 900 ](/en-GB/measuring-instruments/portable-instruments/probes/omnidirectionnel-probe-som-900) [![sonde-omni](/sites/default/files/styles/medium/public/images/omni.jpg?itok=cqk76OBI)](/en-GB/measuring-instruments/portable-instruments/probes/omnidirectionnel-probe-som-900) #### Omnidirectional probe SOM 900 For class 210 / 310 multi-function portables Kimo`s stainless steel omnidirectional telescopic probes measure air velocity, hygrometry and temperature. ![airflow rate velocity fume hoods cupboards](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits03_Mesure-vitresse_699x393.png?itok=NiGynaNg) Metrological Services ## Metrological Services Sauermann has state-of-the-art laboratories in France for the calibration and verification of measuring equipment, using highly advanced velocity and flow test benches to guarantee the precision required for fume hood inspection. To guarantee the accuracy of measurements of frontal velocities, ambient velocities and airflow in and around fume hoods, the instruments must be accurate to very low values. Metrological follow-up (calibration and verification) is therefore essential. [Ask for our services](https://sauermanngroup.com/en-GB/services) ![fume cupboard air flow measurement](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits04_Metrologie_699x393_3.png?itok=e9yAgwrL) ## Products and accessories [ ![debimo](/sites/default/files/styles/event_thumb_max_200w/public/images/debimo_0.jpg.webp?itok=e47runJ4) #### Airflow measuring blades ### DEBIMO Airflow measuring blades are often used to provide air flow measurement in laboratories, air conditioning systems, air flow test rigs, fume extraction... Read more ](/en-GB/measuring-instruments/transmitters/probes/debimo) [ ![mp210](/sites/default/files/styles/event_thumb_max_200w/public/images/mp210.jpg.webp?itok=gU4gOPfU) #### Micromanometer ### MP 210 Kimo’s MP 210 micromanometer measures pressure, air velocity, airflow, temperature, tachometry, gas leak and carbon monoxide (up to 6 simultaneous... Read more ](/en-GB/measuring-instruments/portable-instruments/micromanometers/mp-210) [ ![ctv 110a](/sites/default/files/styles/event_thumb_max_200w/public/images/ctv110.jpg.webp?itok=K_6PYL1p) #### Temperature and air velocity transmitter ### CTV 110 Kimo’s CTV 110 measures temperature and air velocity from 0 to 30 m/s and from 0 to 50°C. Read more ](/en-GB/measuring-instruments/transmitters/air-velocity-transmitters/ctv-110) [ ![Raccords de pression](/sites/default/files/styles/event_thumb_max_200w/public/images/accessories%20hygrometry%20transmitters_1.png.webp?itok=gS4bNtkR) ### Transmitters and probes accessories Sauermann offers a wide range of accessories to support its Monostats, Class 110, 210, 310 and 320 transmitters and their probes, facilitating their... Read more ](/en-GB/measuring-instruments/transmitters/accessories/transmitters-and-probes-accessories) Blog posts [ ![ACR CO2 TRA](/sites/default/files/styles/insight_teaser/public/images/CO2-600.png?itok=SIVP6uW8) April 19, 2022 Using CO2 concentration to measure air change rate New health and safety rules recommend checking the air change rate by measuring the CO2 concentration against a target value. Here, we explain why and how it’s done. Instruments ](/en-GB/insights/using-co2-concentration-measure-air-change-rate) [ ![workplace IAQ](/sites/default/files/styles/insight_teaser/public/images/thumb.jpg?itok=Ry5uqQVR) July 20, 2022 Offices: measuring air quality for maximum occupant health and comfort Workplaces are critical environments. So, it’s vital to monitor indoor air quality since it affects occupant comfort, health and productivity. Instruments ](/en-GB/insights/offices-measuring-air-quality-maximum-occupant-health-and-comfort) ![in house](/sites/default/files/styles/thumbnail/public/images/picto2_0_2.png?itok=5IfbPUK5) ## In-House Our two main factories Our customer service Our metrology laboratories Our Research & Development team ![45 years of experience](/sites/default/files/styles/thumbnail/public/2024-10/45Years_EN.png?itok=QFTDg1bs) ## 45 years of experience For over 45 years, the Sauermann Group has been designing, manufacturing and marketing products and services dedicated to the HVACR and industrial markets. [Information, quotes: I'd like to be contacted by phone](/en-GB/contact)