How you set it up to CFM?

Press VEL/FLOW button to switch to FLOW mode and display wind volume. Press UNIT button to switch wind volume unit, and area unit will also change with wind volume unit as CMM---M² ， CFM---FT². Press AREA button to enter into area setting interface. __ is displayed at the bottom left of the screen, and the spot for input flashes. At this time, the area of the tuyere can be input. You can complete the input by pressing ENTER button; for example, input 1.2, then long press ENTER button and the area value is set as 1.2. In the process of inputing area value, long press ARER button to cancel the current area setting. Place the vane in the duct area to measure current wind flow value right away Wind Flow Calculate Formula : Flow =velocity *(Free Area) Testing Wind velocity : The bar icon (showing on the middle of LCD )changes accordingly with wind Flow/Velocity. Note: a. failing to enter the duct area leads to failure of measurement of the wind flow. b. If wind flow is larger than 9999, the LCD screen will show x10 or x100, indicating the measured value multiplied by x10 or x100. If you have any problem for software to connect with PC,please contact with service@wintact.net to get newest software.

What is the recorded data sample rate? Can it be adjusted?

The recorded data sampling rate can be adjusted as required

el equipo tiene certificado de calibracion de fabrica? cual es la disponibilidad del equipo para envio a colombia?

Sí, el medidor de viento tiene un certificado de calibración de fábrica, póngase en contacto con service@wintact.net para obtenerlo y saber cómo enviarlo a Columbia