Turbulence degree

Air velocity in indoor areas directly affects thermal comfort. The turbulence is given as a percentage, calculated from the mean air velocity and air temperature in indoor areas. The turbulence indicates the air velocity fluctuation and intensity of air flow in an indoor area. There is a direct correlation between the air temperature and turbulence measured.

7 products or recommendations for Turbulence degree
  • testo 400 IAQ and comfort kit with tripod

    Order-Nr. 0563 0401

    Ideal kit for IAQ professionals, with a focus on indoor air quality and comfort level. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one CO₂ probe (with Bluetooth® handle), one turbulence probe and one globe thermometer Ø 150 mm (both with fixed cable). Use the measuring tripod to ensure standard-compliant positioning of the probes. In combination with the IAQ data logger, which is available to order separately, long-term measurements up to 2 weeks can be recorded, even without the IAQ measuring instrument.
    • Standard-compliant determination of the comfort level: PMV and PPD as well as draught and turbulence as per EN ISO 7730 and ASHRAE 55

    • Monitor the indoor air quality: Determination of CO2 concentration, humidity, air temperature and turbulence in workplaces, including long-term measurements

    • Smart, intuitive measurement programs, complete your measurement with full documentation on site at the customer’s premises or carry out further analysis using the testo DataControl measurement data management and analysis software

    • In the kit: testo 400 universal IAQ instrument, CO2 probe (with Bluetooth® handle), turbulence probe with cable, globe thermometer (Ø 150 mm) with cable, measuring tripod with bag, case

  • testo 440 Indoor Comfort ComboKit with Bluetooth®

    Order-Nr. 0563 4408

    Use this practical Indoor Comfort ComboKit to handle all relevant measurements in order to evaluate the indoor air quality in indoor areas and to determine the draught risk and degree of turbulence in workplaces. The testo 440 air velocity and IAQ measuring instrument, the CO2 probe with Bluetooth® including temperature and humidity sensor and the turbulence probe are all safely stowed away in the case. So you can get down to work straight away!
    • Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of CO₂ concentration, humidity, air temperature and degree of turbulence in workplaces

    • Precise: calculation of wet bulb temperature, dew point and absolute humidity – determination of the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55

    • Convenient: wireless probe, internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes

  • testo 440 - Air velocity and IAQ measuring instrument

    Order-Nr. 0560 4401

    Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).
    • Intuitive: clearly structured measurement menus for volume flow, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂

    • Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)

    • Clear overview: large graphic display with parallel display of 3 readings

    • Safe and reliable: internal data storage and USB port for data export

  • testo 440 dP - Air velocity and IAQ measuring instrument including differential pressure sensor
     

    Order-Nr. 0560 4402

    Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features an integrated differential pressure sensor and intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).
    • Intuitive: clearly structured measurement menus for volume flow, K-factor, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂

    • Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)

    • Clear and reliable: large graphic display with parallel display of 3 readings as well as internal data storage and USB port for data export

    • Includes a differential pressure sensor: for Pitot tube measurement and monitoring filters

  • Comfort probe for turbulence measurement

    Order-Nr. 0628 0143

    The comfort probe (with the appropriate measuring instrument) is ideally suited for determining indoor air turbulence in accordance with EN 13779.
    • Turbulence measurement in accordance with EN 13779

    • Determination of air velocity and draught risk

    • Integrated temperature and ambient pressure measurement

    • Intelligent calibration concept

  • Comfort probe for turbulence measurement

    Order-Nr. 0628 0109

    The comfort probe (with the appropriate measuring instrument) is ideally suited for determining indoor air turbulence in accordance with EN 13779.
    • Turbulence measurement in accordance with EN 13779

    • Non-directional flow measurement

    • High level of accuracy even at low flow velocities

    • Integrated temperature measurement

7 Products found