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™ 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™ Compact Anemometer/Thermometer
Ease of operation in hoods or outdoors makes this Traceable™ Compact Anemometer/Thermometer 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™ Traceable™ Hot Wire Anemometer/Thermometer
Traceable™ Hot Wire Anemometer/Thermometer is ideal for cleanrooms and environmental tests.
Fisherbrand™ Traceable™ Digital Anemometer/Thermometer
Traceable™ Digital Anemometer/Thermometer measures outside wind speed, air velocity/temperature in hoods and slight gas movement in ducts.
TFA Dostmann Wind Meter WIND BEE
The handy wind meter WIND BEE displays the current wind speed and the highest and lowest values in kilometers or miles per hour, in meters per second or in knots. In addition, the temperature is determined. WIND BEE has a tripod connector for measurements over a longer period of time.
Buerkle™ LiquiMobil™ SAN Flow Indicator
Provides precise visual indication of the flow velocity of liquids or gases. Buerkle™ LiquiMobil™ Flow Indicators significantly reduce water consumption in cooling systems due to easy adjustment.
Promotions are available
Buerkle™ CheMobil™ PMP Flow Indicator
Use these flow indicators for a wide variety of substances. Buerkle™ CheMobil™ PMP Flow Indicators give precise visual indication of the flow velocity of liquids or gases being transported through hose connections.
Promotions are available
Key Instruments™ Acrylic Waterflow Flowmeter
Standard precision-machined acrylic flow meter for liquids or gases. Key Instruments™ Flo-Rite™ Acrylic Airflow Flowmeter has direct reading air or water scales and is available in either English or Metric scales.
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.
Thermo Scientific Glass Condensation Flask for SC250EXPRESS
Glass Condensation Flask for use with the SC250EXPRESS Savant SpeedVac concentrator system.
Fisherbrand™ Traceable™ Anemometer/Thermometers
Designed for intuitive and easy operation
Bel-Art™ Scienceware™ Clear Polystyrene Roto-Flo Flow Indicator
For use with 3/16 to 1/4 in. I.D. Tubing. Bel Art™ Clear Polystyrene Roto-Flo Flow Indicator includes colored paddle wheels.
Bel-Art™ Riteflow™ Mounted Flowmeters
For corrosive and noncorrosive liquids and gases
