Description of the instrument
The funnel kit comprises a funnel for measuring at plate outlets (200 x 200 mm) and a
funnel for measuring at fans (330 x 330 mm) in combination with:
· testo 417
· testo 445 and testo 400 with 100 mm vane probe 0635 9340
· testo 435 from firmware 2.06 (instruments manufactured from 2007 onwards) or
1.14 (instruments manufactured up to 2006) with 100 mm vane probe 0635 9435
· testo 480 with 100 mm vane probe 0635 9343
· testo 440 with 100 mm vane probe 0635 9372 and 0635 9432 or with Bluetooth
handle 0635 9371 and 0635 9431
Measurement is possible on both suction and blowing ventilation equipment.
For accurate measurement at swirl outlets or ventilation grilles with
turbulent flow, Testo recommends the use of the testovent 417 volume
flow straightener (0554 4172).
Use
Insert instrument/vane probe
:
The testovent bracket must be used for the vane
probe of the testo 440.
- The locking switch in the upper part of the handle is open:
OPEN is visible (1).
1 Insert the measuring instrument or the vane probe into the
bracket, pay attention to the direction of flow (rear side of
instrument/probe (side with type plate) downwards or flow in
direction of arrow).
2 Close locking switch: Push switch until OPEN is no longer
visible.
®
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