KROHNE WATERFLUX 3070 EN - Manual (Page 73)

TECHNICAL DATA
8
73
WATERFLUX 3070
www.krohne.com 06/2013 - 4001410205 - HB WATERFLUX 3070 R05 en
8.4.1 WATERFLUX 3070 without straight inlet and outlet sections
Disturbed flow profiles, such as those that occur behind elbows, tee pieces, reducers or valves
installed in front of a water meter, affect the measuring performance. Therefore it is usually
recommended to fit a straight inlet length in front of and straight outlet length behind a water
meter.
As a result of the unique WATERFLUX flow sensor design, whereby the mean flow velocity and
flow profile are optimised within the rectangular and reduced cross section, the additional
uncertainty for upstream disturbances are drastically reduced. Therefore the requirements for
straight length and in front of and behind a meter are reduced.
The NMi has performed tests with various flow and swirl disturbers according to ISO 4064 and
EN 14154. Based on these results the WATERFLUX 3070 has received a
OIML R49 certificate
• Diameter range DN25...300
• Accuracy class 1 and class 2
• Minimum straight inlet and outlet pipe length of 0 DN
• Bi-directional flow
EC-type certificate according MID Annex MI-001
• Diameter range DN25...300
• Minimum straight inlet and outlet pipe length of 0 DN
• Bi-directional flow