Kamstrup ULTRAFLOW 54 DN15-125, Техническое описание

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ULTRAFLOW® 54 DN15-125
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Kamstrup A/S · Technical description · 5512-2464_D1_GB_09.2021
6.1.2 Dimensioning
Consider among others, the following aspects, when dimensioning the meter:
Pipe dimension: Note that the flow sensor size shall fit the pipe dimension of the installation. However, one dimension
up or down in flow sensor size is acceptable. This means that for a pipe dimension of, for example DN20 in the installation
corresponding to G1B (R
¾ ) threads, a flow sensor size of DN 20 is optimum, but DN15 and DN25 are also acceptable.
Flow: The maximum design flow in the system must NOT exceed the nominal flow q
p
of the flow sensor. For further
explanation, see 6.1.4 Operating pressure .
Static pressure: The static pressure pressure at the flow sensor outlet must at all times be above the minimum
requirement and in general below the maximum allowable pressure. For further details, see
6.1.4 Operating pressure .
Meter factor: The meter factor of ULTRAFLOW® and MULTICAL® must be identical (see type label/display). For further
details about available meter factors of ULTRAFLOW®, see
Table 1 .
6.1.3 Operating conditions
The meter must be suitable for the foreseeable operating conditions in the installation:
Pressure stage ULTRAFLOW® 54: PN16/PN25, see marking. The marking of the flow sensor also covers
accessories included such as couplings and gaskets as well as the blind plug.
Medium temperature
1)
, ULTRAFLOW® 54: 15…130 °C or narrower range, see marking.
1)
At medium temperature higher than 60 °C the flow sensor should be shielded against unintentional contact. At medium
temperatures above 90 °C or below the ambient temperature, calculator and Pulse Transmitter/Pulse Divider must not
be mounted on the flow sensor. Instead wall-mounting is recommended. See
Table 12 Accessories for Pulse Transmitter
and Pulse Divider .
Mechanical environment: MID M1 – applies to instruments used in locations with vibration and shocks of low
significance, e.g. for instruments fastened to light supporting structures subject to
negligible vibrations and shocks transmitted from local blasting or pile-driving
activities, slamming doors, etc.
– and M2 – applies to instruments used in locations
with significant or high levels of vibration and shock, e.g. transmitted from machines
and passing vehicles in the vicinity or adjacent to heavy machines, conveyor belts, etc.
(M2 only flow sensor type 65-5-XXHX-XXX).
Electromagnetic environment:
MID E1 – applies to instruments used in locations with electromagnetic disturbances
corresponding to those likely to be found in residential, commercial and light
industrial buildings.
– and E2 – applies to instruments used in locations with
electromagnetic disturbances corresponding to those likely to be found in other
industrial buildings. EN 1434 class C (high electrical and electromagnetic conditions).
The meter’s control cables must be drawn at min. 25 cm distance from other
installations.
Ambient conditions:
The ambient temperature must be within 5…55 °C. Installation must be in closed
locations (indoors).
Static pressure
2)
: To minimise the risk of measuring errors as a result of cavitation or air in the water it
is recommended to keep a sufficient static pressure at the flow sensor outlet of min.
1.5 bar (1.0 bar for ULTRAFLOW® 54 type 65-5-XXXHX-XXX) up to q
p
and min. 2.5 bar
(2.0 bar for ULTRAFLOW® 54 type 65-5-XXXHX-XXX) at q
s
. This applies to temperatures