Constant Air-Flow Tunnel
This is air-flow reference measure device. It keeps steady airflow through the tunnel and updates the flowrate 2 times in second. Value is shown on graphical LCD display with backlight. With this device you can:
- Verify that your anemometers are fit to work.
- Train new employees to perform real air-flow measurements on field.
- Tune your air-flow measurement performance.
The device can be placed on floor, on table or mounted on to the wall. Different measurement point options are available: by default we make 2 perpendicular holes with diameter of 10mm.
|Maximum dimensions L x W x H:||3 m x 45 cm x 73 cm|
|Maximum average air speed:||7.6 m/s;* (20 m/s with booster add).|
|Calibrated range for dia 160mm:||0.69–8.29 m/s *|
|Reading precision:||5% from reading|
|Calibrated temperature range:||10–40 oC|
|Calibrated air pressure range:||900–1100 hPa|
|Sampling interval:||~0.5 s|
|Power supply:||AC 240 V 50 Hz|
*) The calibration will cover booster speed range. Booster is additional fan and pipework for reaching higher airflow speeds.
Control and value unit does show air-flow in following units:
- m3/h – cubic meters in hour,
- L/s – liters in second,
- m/s – average speed meters in second.
Reference anemometer is calibrated to show volmetric airflow: m3/s or L/s. The calculation into average speed is done taking into account that the effective air tunnel diameter is 160mm. When constructing into front of the tunnel a pipe with smaller diameter, then inside that pipe corresponding air speed is higher. When the effective air tunnel diameter is higher, then the corresponding average air speed is lower than shown on display. We can help you to calibrate the display unit to show average speed for your particular tunnel.
Air speed inside tunnel depends on the distance of measurement point. Near the walls air almost stands still and in the middle should be highest. In real system, the airflow is not symmetric either. This reference tunnel resembles real system and shows accurate average speed or airflow volume.
Contact us. Phone: +372 55611689. Email: firstname.lastname@example.org