Anemometers and Flowmeters
Anemometers and Flowmeters
Anemometers to measure the speed of wind or a gas stream, and flowmeters to measure the flow rate of a liquid or gas; available in a variety of configurations.
Vane anemometers are mechanical velocity instruments, often described as windmills or propellers. The axis of a vane anemometer is parallel to the wind direction (horizontal). The fan speed is measured by a revolutions counter and converted to a wind speed measurement.
Digital vane thermoanemometers may be pre-calibrated, traceable to NIST, and offer a choice of measurement units (ft./min., m/s, mph, km/hr., knots, CFM, and CMM).
Hot wire anemometers use an electrically heated wire to help calculate air speed. The wire is cooled by the air flow and the known resistance of the metal is used to calculate the flow speed.
Although somewhat delicate, hot wire anemometers are used to study turbulent or rapid velocity fluctuation flows.
In the laboratory, hot-wire anemometers can be used to measure outside wind speed, air velocity, and temperature in hoods and enclosures, and slight gas movement in ductwork.
Other types of anemometers include:
- Laser Doppler anemometers
- Ultrasonic anemometers
- Acoustic resonance anemometers
- Pressure anemometers (tube and plate)
Some flowmeters measure and monitor the flow of gases. Sometimes used with gas chromatography systems, these instruments may be rated for use with flammable and explosive gases.
Common types of flowmeters with industrial applications include:
- Obstruction type (differential pressure or variable area)
- Inferential (turbine type)
- Electromagnetic
- Positive displacement
- Fluid dynamic (vortex shedding)
- Anemometer
- Ultrasonic
- Mass flowmeter (Coriolis force)
Fisherbrand™ Flow Indicator
Allows immediate visual indication of gas or liquid flow by means of the ball's rotation.
Fisherbrand™ Traceable™ Hot Wire Anemometer/Thermometers
Ideal for cleanrooms and environmental tests
Fisherbrand™ Traceable™ Micro-Anemometer/Thermometer
Measures air velocity in five user-selectable values: meters per second, feet per second, miles per hour, kilometers per hour and knots. Fisherbrand Traceable Micro-Anemometer/Thermometer provides lightning fast measurements with reading updates twice per second.
Fisherbrand™ Traceable™ Digital Anemometer/Thermometer
Measures outside wind speed, air velocity/temperature in hoods and slight gas movement in ducts.
Thermo Scientific™ GFM Pro Gas Flowmeter
Measure and monitor the flow of all types of gases quickly and efficiently with the Thermo Scientific™ GFM Pro Gas Flowmeter.
Fisherbrand™ Traceable™ Compact Anemometer/Thermometer
Ease of operation in hoods or outdoors makes this an ideal instrument. One-hand operation anemometer displays air velocity and temperature simultaneously. Unit is engineered for years of reliable service even in severe lab, harsh plant, or outdoor environments.
Fisherbrand™ Flowmeter Regulators
Avaiable for Carbon Dioxide, Nitrogen and Oxygen. Fisherbrand™ Flowmeters feature a compact design.
MilliporeSigma™ Supelco™ Aalborg Digital Mass Flowmeter
Use to measure gas flow rates for common GC gases
MilliporeSigma™ Supelco™ Manual Bubble Flowmeter, Capillary Version
Determines volumetric flow rates by measuring the time taken by the gas stream to move a soap bubble through a specific volume
MilliporeSigma™ Supelco™ Ellutia 7000 Digital Volumetric/Mass Flowmeter
Has the ability to operate in either a volumetric or a mass mode
MilliporeSigma™ Supelco™ Manual Bubble Flowmeters
A simple and precise way to measure flow rates of gases
MilliporeSigma™ Supelco™ Aalborg Mass Flowmeter Battery Kit
For use with Aalborg Digital Mass Flowmeters
Digi-Sense™ Precalibrated Professional CFM/CMM Vane Thermoanemometer
Save time by storing up to 16 commonly used vent area sizes into memory (eight CFM and eight CMM)
Digi-Sense™ Precalibrated CFM/CMM Hot-Wire Thermoanemometer
High precision at very low air velocities and flow rates
Digi-Sense™ Precalibrated CFM/CMM Vane Thermoanemometer
High precision with extra large backlit LCD and flow area data storage
DWK Life Sciences Kimble™ Kontes™ Flow-Watchman™ Water Flow Indicator
Insert in water lines for an instant check of flow continuity and relative flowrate.
Promotions are available
Bel-Art™ SP Scienceware™ Riteflow™ Mounted Flowmeters
For corrosive and noncorrosive liquids and gases
Bel-Art™ SP Scienceware™ Highly Visible Flow Indicator
Provides an immediate visual indication of water/liquid flow.
Digi-Sense™ Mini Vane Anemometer with NIST-Traceable Certificate
Verify proper airflow for component or space cooling with lightweight and pocket-sized affordable meter for convenient field use
Digi-Sense™ Precalibrated Data Logging USB Vane Anemometer
Versatile handheld or mountable design for quick air velocity sampling or long term monitoring
Oakton™ 65 mm Construction Industrial Direct Reading Flowmeters With Standard Valve
Measure and control liquids and gases in wide range of applications with precision and repeatability. Available in liters for international applications and acceptance.
AIMS™ CO2 Flowmeters: Model XL900
Calibrated flowmeter that accurately delivers CO2 to chamber
AIMS™ CO2 Flowmeters: Model LC500
Calibrated flowmeter that accurately delivers CO2 to chamber
AIMS™ CO2 Flowmeters: Model SC100
Calibrated flowmeter that accurately delivers CO2 to chamber
Fisherbrand™ Traceable™ Micro-Anemometer/Thermometer
Measures air velocity in five user-selectable values: meters per second, feet per second, miles per hour, kilometers per hour and knots.
Eisco™ Small Anemometer
Simple device for elementary children to determine wind speed. It is simple enough for children to understand and use.
Vernier Vernier Anemometer
Measures wind speed in a variety of experiments.
Chemglass Life Sciences Flow Indicator, Polystyrene
Flow Indicator, Polystyrene. Clear flow indicator provides immediate visual of water, air or gas flow. The highly visible white nylon ball rotates in a circular channel during flow. Continuity and relative flow rate are indicated by the ball’s rotation. The minimum flow rate to actuate the ball with water is 50mL per minute in the horizontal position, 140mL per minute in the vertical position. With air, the minimum flow rate is 3L/min in the horizontal position, 8L/min in the vertical position. Maximum working pressure is 10 PSI. Hose connections accept 1/4 to 3/8" ID tubing.
