- -
18
NOTE:
the probe should be maintained orthogonal to the flow and not tilted in relation to it:
OK
NO
The probe is correctly positioned in relation to the air-flow when the value measured is the
maximum possible.
3.
Proceed with measurement following the instructions provided in the introductory paragraphs of
this chapter.
4.3.3 Care and maintenance of the probes
The probe performance, mainly at low speeds, largely depends on the very slow friction of the vane
on its own axis. In order not to compromise this characteristic, it is recommended that
forcing is
avoided, as well as blocking or rotating the vane with the fingers
, and if possible,
avoid inserting it
in air flows that could soil
the probe, and do not exceed its measurement capacity
.
