flowIQ® 3100 TECHNICAL DESCRIPTION
21
Ka st up A/S • Te h i al Des iptio •
5512-1242_D1_GB
•
09.2016
8.3
Straight inlet
The meter requires neither straight inlet nor straight outlet to meet the Measuring Instruments Directive
(MID) 2004/22/EC and OIML R49.
A straight inlet section will only be necessary in case of heavy flow
disturbances before the meter.
8.4
Operating pressure
In order to avoid formation of air bubbles or vapor dents in the meter (cavitation)
–
and to ensure correct
measurement under all circumstances
–
the operating pressure in the pipe installation must observe the test
conditions of OIML R49, which means that the static pressure, immediately after the meter (the downstream),
must always be minimum 0.03 MPa (0.3 bar).
A
Recommended
water meter position
B
Recommended
water meter position
C
Recommended for
well installation.
Air build-up may
occur
D
The meter functions
optimally, but the
display is
upside do
