That was very interesting. I've only every used the pitot tube (many years ago) and, in reality it's almost impossible the ensure that the probe is pointing directly into the air-stream. I can understand why the 'hot wire' device is better. Thank you for comparing these.

Great Knowledge shared; Thank you, sir!

Very useful features. Thanks.

Air Balancers are chad

Good and informative

This can be used for HVCA and LEV. The number of measurements is based on duct size. See a commissioning guide.

Can you please give instructions on how to set up the Velocicalc software before capturing measurements on a 90-120 CFM Biological Safety Cabinet?

It is recommended that you be at least 7 duct diameters downstream and at least 3 duct diameters upstream of any obstructions or turns. These are universally accepted methods for determining where a duct traverse should occur to provide the best chance for a laminar flow. Please refer to the Alnor HVAC Handbook, Appendix A, for more detailed information on a Duct traverse procedure. Thank you.

Have you ever thought of adding levels to the probe? Maybe on the handle? Sometimes it is very hard to get into position where you can visually verify you are holding the probe level. This would help eliminate some human error.

if I'm having a duct which is 1 metre by 0.8 metre, how do I know how much holes and reading points I'm going to perform?

nice

I am looking for work in ducts combinations ( installation ducts ventilation.. .. .)

I need method for duct balance .

Hi, can you confirm this is HVAC system and not a LEV? 3:46: will 5 second measurement per point is enough? Do we need 3 diameter distance from the branch?

The procedures in this video are in regard to HVAC Duct Traverses, though other Duct Traverse applications may also benefit from this procedure as well. 5 and 10 seconds are very common sample times, but which is appropriate depends on your environment. For example, if you are sampling from a flow with a greater amount of turbulence, then a longer sample time may be needed.

Sir please make video PDS

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Can i get job?

Very incomplete