- Resolution of 0.01 fpm ensures accurate readings
- Quality design and construction for dependable use day after day
- Auto-off function saves battery life
- Timed average calculations ensure accurate readings when encountering eddies
Determining the volume flow by funnel measurement
Weight | 8 oz. / 230 g |
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Dimensions | 11 x 4 x 2 in. / 277 x 105 x 45 mm |
Operating temperature | 32° to 122 °F / 0 to +50 °C |
Housing | ABS |
Battery type | 9V block battery, 6F22 |
Battery life | 50 h |
Storage temperature | -40° to 158 °F / -40 to +70 °C |
Measuring range | 32° to 122 °F / 0 to +50 °C |
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Accuracy | ±0.9 °F / ±0.5 °C |
Resolution | 0.1 °F / 0.1 °C |
Measuring range | +59.1 to +3937 fpm / +0.3 to +20 m/s |
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Accuracy | ±(19.7 fpm + 1.5 % of mv) / ±(0.1 m/s + 1.5 % of mv) |
Resolution | 1.97 fpm / 0.01 m/s |
Every duct inlet and outlet should only contain the volumetric flow that according to calculations is a basic prerequisite to an efficient functional system.
Particularly large vane anemometers are suitable for measuring the volumetric flows at duct outlets, as these integrate the flow velocity over a larger area thereby determining disturbance from the air grille (loop method).
A volumetric flow rate funnel and a large vane are ideal when taking readings at the suction or blowing vents of air grilles and poppet valves. The entire volumetric flow is recorded with the aid of the funnel without the need for conversion on the basis of the flow velocity and area. This method of flow measurement is simple and reliable.
The compact anemometer testo 417 with integrated flow/temperature vane (Ø 100 mm) is ideal for measuring the flow velocity, volumetric flow and temperature at duct outlets. The optional funnel set allows measurements at ventilation grilles and poppet valves.