Measurement Modes in the Main Menu
32
6.4.3 Performing the Test
Fig. 31: Menu "Airflow (k value)"
After the measuring mode has been activated, in
the upper part of the display the airflow will be
indicated in the unit selected in the setup-menu.
Underneath, the airflow will be indicated in the
other unit.
The following values will also be indicated.
Room temperature T
int
, when there is no tempera-
ture sensor connected (see figure).
If temperature sensors are connected, T
1
is the
temperature value measured by the sensor con-
nected left and T
2
is the temperature sensor
measured by the sensor connected right.
Differential pressure
P
D
Air density
k value
Underneath, the k value entered by the user is
indicated.
NOTE!
The k value is specified in the data sheet of the
air vent. The user must enter this k value into the
DC 410
Flow
before starting the measurement.
Fig. 32: Entering the k value
How to enter the k value:
Select K value, see Fig. 31: Menu "Airflow (k
value)"
Increase or reduce the value with the up and
down keys.
Press OK to confirm.
NOTE!
Always enter the k value related to l/s (even if
you have changed the air flow unit from l/s to
m
3
/h in the setup-menu).
