Wöhler DC 17 Pressure Computer
56
Hotline: +49 2953 73-211
Fax: +49 2953 73-250
6. Equations
6.1 Hydraulic adjustment
The following equation (section 6.1.1) describes how the flow rate is calcula-
ted. The kv values can be easily changed during the measurement. Flow rates
below 50.0 m
3
/h are indicated in l/h.
with: Q
calculated flow
k
v
flow coefficient in m3/h
r
Bezug
reference density of cold water (1 kg/l)
r
Messmedium
density of the fluid in the fitting, can be set to 1 kg/l in
the Setup menu (default)
p
Messwert
differential pressure at the tested connections of the
fitting in hPa
p
Bezug
reference pressure 1000 hPa
equation 6.1.1
6. Equations