Volume Flow - Funnel - TESTO 400 Instruction Manual

9 Operation
4
Click on

Configuration menu opens.
5 Make the required settings.
When measuring the volume flow at outlets, it is possible to enter the
free area of the outlet as a percentage in order to take possible sources
of interference into account.
6 Click on Apply

The measurement screen is
displayed. The probe relevant to the
measurement is marked in orange.

Volume flow - funnel

9.4.6
Use this application to measure the volume flow of ventilation systems with a
funnel.
A volume flow rate funnel is required to determine the flow rate on ventilation
systems. The measurement can be carried out with a compatible 100 mm vane
probe in conjunction with a funnel set. The funnels differ in size. When selecting
the funnel, make sure that the opening of the funnel covers the outlet grille
completely and tightly.
1
Click on

Main menu opens
44
.
Configuration.
.