General Info

ManualsBrandsTESTO ManualsEnvironmental Testing Equipment417 Vane Anemometer

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Among the factors affecting whether humans feel

comfortable in a room is the air movement. The intensity

with which this is perceived depends on the air outlets

installed. Swirl outlets are of increasing significance, as

the fresh air introduced into a room is diffused rather than

direct. This reduces the mean air velocity, which increases

the perceived comfort.

Testo Solution

Example application

However, the flows and turbulences created at a swirl outlet

make an exact measurement of the volume flow, and thus

the correct adjustment of the ventilation system, difficult.

The volume flow straightener testovent 417 solves this

problem. The world innovation developed by Testo changes

the swirl into an almost uniform air flow, thus ensuring a

precise determination of the volume flow at swirl outlets.

More precise measurement of volume

flow at swirl outlets with the

volume flow straightener testovent 417.

TS_PS_testovent_417_MASTER.indd 1 03.12.2013 14:01:39

Summary of content (4 pages)

PAGE 1
Testo Solution Example application More precise measurement of volume flow at swirl outlets with the volume flow straightener testovent 417. Among the factors affecting whether humans feel However, the flows and turbulences created at a swirl outlet comfortable in a room is the air movement. The intensity make an exact measurement of the volume flow, and thus with which this is perceived depends on the air outlets the correct adjustment of the ventilation system, difficult. installed.
PAGE 2
Testo Solution Volume flow measurement at swirl outlets 1 2 Rotation direction of the swirl is identical to that of the vane – Rotation direction of the swirl is opposite to that of the vane – the measured air flow velocity is too high. the measured air flow velocity is too low. The challenge.
PAGE 3
This allows the volume flow straightener testovent 417 on the one hand to save costs and energy thanks to more efficiently adjusted ventilation systems, and on the other hand to control an important factor for thermal comfort reliably and better. The volume flow straightener testovent 417 can only be used in combination with a funnel (funnel set testovent 417) and a measuring instrument.
PAGE 4
Testo Solution Volume flow measurement at swirl outlets More information. Volume flow straightener testovent 417 – More information and answers to all your questions all advantages at a glance: concerning volume flow measurement at swirl outlets at • More precise measurement of volume flow, www.testo.com. independently of swirl direction • Retrofittable for existing funnel sets from Testo 0981 5914/msp/I/12.2013 – Subject to change without notice.