• 8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg • 2 air flow units to select from: m/s, fpm • Integrated density compensation • Backlit display, min/max values, hold function The pressure measuring instrument testo 512 is available as four different models. This model has a measuring range from 0 to 20 hPa and is ideal for measuring differential pressure at filters and for carrying out pitot static tube air flow measurements between 5 and 55 m/s in air ducts.

Product Description The testo 512 pressure measuring instrument with a measuring range from 020 hPa helps you carry out quick and easy filter checks while inspecting differential pressure in ventilation and air conditioning systems. Gp Pro Ex 3 1 Keygen Free. Measuring differential pressure aids determining if the filters are functioning properly or need to be replaced. Testo 512 is ideal for carrying out pitot static tube measurements in air ducts at very high air flow speeds or when the air stream is strongly polluted. The compact, rugged meter with a measuring range from 5 to 55 m/s shows both pressure as well as air flow speed.

Averaging Pitot tube is a multiport self averaging flow meter. It is a primary element for flow measurement of gas, liquid, vapour in pipelines and ducts based on the principle of measurement of differential pressure created when an obstruction is placed in the fluid flow due to increase in fluid velocity. Full-text (PDF) Flowmeters with self-averaging Pitot tubes are more and more often applied in practice. Their advantages are practically no additional flow losses.

The instrument has a pre-integrated density compensation while the damper can be programmed individually for adjustable averaging. The pitot static tube for carrying out air flow measurements can be ordered together with the testo 512. You may select the model that is best suited to your individual requirements from the three available models. The pitot static tube is inserted into the air duct for measuring the air flow quickly and reliably.

The testo 512 pressure measuring instrument is equipped for simultaneous display of pressure and air flow speed. You can choose between two different units of measurement - m/s and fpm - to indicate the air flow speed and from eight different units - psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O and inch Hg - to measure the pressure.

More accessories for additional benefits in the field By deciding to invest in some of the practical accessories you are also actively taking a step towards ensuring that you will be able to make the most of your instrument for years to come. The all-in-one carrying case and transport case protect both your meter and the pitot static tube during transport and storage and the TopSafe protective cover protects the meter against impact, dirt and water ingress. And last but not the least, the testo turbo printer for providing quick and easy print outs with time and date while you are on site.

Delivery Scope testo 512 differential pressure measuring instrument (measuring range 0 to 20 hPa), calibration protocol, batteries.

A pitot tube can be used to measure fluid flow velocity by converting the kinetic energy in a fluid flow to potential energy. The principle is based on where each term of the equation can be interpreted as pressure p + 1/2 ρ v 2 + γ h = constant along a streamline (1) where p = (relative to the moving fluid) (Pa) ρ = (kg/m 3) v = flow velocity (m/s) γ = ρ g = (N/m 3) g = (m/s 2) h = elevation height (m) Each term of the equation has the dimension force per unit area N/m 2 (Pa) - or in imperial units lb/ft 2 (psi). Static Pressure The first term - p - is the static pressure.

It is static relative to the moving fluid and can be measured through a flat opening in parallel to the flow. Dynamic Pressure The second term - 1/2 ρ v 2 - is called the dynamic pressure. Animal Crossing New Leaf Download Qr Codes. Hydrostatic Pressure The third term - γ h - is called the hydrostatic pressure. It represent the pressure due to change in elevation.

Stagnation Pressure Since the Bernoulli Equation states that the energy along a streamline is constant, (1) can be modified to p 1 + 1/2 ρ v 1 2 + γ h 1 = p 2 + 1/2 ρ v 2 2 + γ h 2 = constant along the streamline (2) where suffix 1 is a point in the free flow upstream suffix 2 is the stagnation point where the velocity in the flow is zero Flow Velocity In a measuring point we regard the hydrostatic pressure as a constant where h 1 = h 2 - and this part can be eliminated. Since v 2 is zero, (2) can be modified to: p 1 + 1/2 ρ v 1 2 = p 2 (3) or v 1 = [2 (p 2 - p 1) / ρ] 1/2 (4) where p 2 - p 1 = dp (differential pressure) With (4) it's possible to calculate the flow velocity in point 1 - the free flow upstream - if we know the differential pressure difference dp = p 2 - p 1 and the density of the fluid.