TECHNICAL DESCRIPTION
MULTICAL
®
61
5512-622 GB/01.2011/Rev. E1
23
7.3
Straight inlet
ULTRAFLOW
®
requires neither straight inlet nor outlet to meet the Measuring Instruments Directive (MID)
2004/22/EC and OIML R 49. Only in case of heavy flow disturbances before the meter a straight inlet section is
necessary.
7.4
Installation example
To avoid risk of condensation inside the calculator, please don’t install the calculator directly upon the flow
sensor. If it is necessary to install the calculator on the flow sensor, angle fitting 3026-252 must be used (as
shown in Figure 11).
Figure 10
Figure 11
MULTICAL
®
61 mounted on a wall
MULTICAL
®
61 mounted on ULTRAFLOW
®
24,
by means of angle fitting 3026-252
7.5
Operating pressure
In order to prevent cavitation the operating pressure at ULTRAFLOW
®
24 must be min. 1.5 bar at Q
3
and min. 2.5
bar at Q
4
. ULTRAFLOW
®
24 must not be exposed to pressure lower than the ambient pressure (vacuum).
7.6
Mounting of Pulse Transmitter 66-99-618
See installation instructions 5512-587 DK-GB-DE
