9.4.4 Set the airflow coefficient (CP210-R)
This function is available on CP210-R with SQR3 option only.
This coefficient allows to calculate an airflow from the pressure. It is indicated by the manufacturer that supplies air vents
with pressure connections (+ and -). From the square root of the measured pressure (Delta P), and this coefficient, you will
get the airflow:
Airflow
=
C
D
√
Δ
pressure
The transmitter is powered on.
➢
Press
OK
.
➢
Enter the activation code (see page 8).
➢
Press
OK
.
➢
Press
Up
key to go to
“F 625”
folder to set the coefficient value.
➢
Press
OK
.
➢
Set the coefficient with
Up
and
Down
keys.
➢
Press
OK
when the last digit has been set to validate the coefficient.
This coefficient must be between 0000.0 and 9999.9.
➢
Press
Up
key to go to
“F 626”
folder to set the unit of measurement.
➢
Press
OK
.
➢
Select
0, 1, 2, 3
or
4
for:
➢
0:
Pa
➢
1:
mmH
2
O
➢
2:
inWG
➢
3:
mbar
➢
4:
mmHG
24
F 600: COMPENSATION, MEANS OF MEASUREMENT AND SECTION SETTINGS