Kamstrup ULTRAFLOW 54 DN150-300 Parts list manual

Technical Description
ULTRAFLOW® 54 DN150-300

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
2

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
3
Contents
1General description...................................................................................................................5
2Data ..........................................................................................................................................6
2.1 Electrical data..............................................................................................................................................................6
2.2 Mechanical data..........................................................................................................................................................6
2.3 Flow data.....................................................................................................................................................................7
2.4 Materials......................................................................................................................................................................7
3Type overview...........................................................................................................................8
4Ordering details.........................................................................................................................9
4.1 Type numbers of ULTRAFLOW® 54 for MULTICAL®..................................................................................................9
4.2 Type numbers of separate ULTRAFLOW® 54 ............................................................................................................9
Ordering details of separate ULTRAFLOW® 54 ........................................................................................... 10
Type numbers of output and supply modules ............................................................................................ 10
Programming options of meter factor and pulse durations....................................................................... 11
4.3 Accessories............................................................................................................................................................... 12
Cables............................................................................................................................................................. 13
Cable Extender Box ....................................................................................................................................... 13
5Dimensional sketches..............................................................................................................14
5.1 ULTRAFLOW® 54 DN150-300.................................................................................................................................. 14
5.2 Cable Extender Box.................................................................................................................................................. 15
6Pressure loss ...........................................................................................................................16
7Installation ..............................................................................................................................17
7.1 Guidelines for dimensioning ULTRAFLOW® 54 ...................................................................................................... 18
7.2 Orientation of ULTRAFLOW® 54 ............................................................................................................................. 20
Mounting ULTRAFLOW® 54 in lifting ring.................................................................................................... 20
7.3 Mounting of ULTRAFLOW® 54 electronics box ...................................................................................................... 21
Orientation of flow sensor electronics box ................................................................................................. 22
7.4 Straight inlet............................................................................................................................................................. 23
7.5 Operating pressure .................................................................................................................................................. 24
7.6 Electrical connections to MULTICAL® ..................................................................................................................... 25
ULTRAFLOW® 54 and MULTICAL®, galvanically coupled ............................................................................ 25
ULTRAFLOW® 54 and MULTICAL®, galvanically separated......................................................................... 25
Cable length................................................................................................................................................... 27
Electrical connection of Cable Extender Box............................................................................................... 27
7.7 Connection of power supply ................................................................................................................................... 28
Battery supply ............................................................................................................................................... 28
Mains supply modules .................................................................................................................................. 28
Mains supply cable........................................................................................................................................ 29
Cable connections......................................................................................................................................... 30
Change of supply unit ................................................................................................................................... 30

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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7.8 Installation examples (electrical) .............................................................................................................................31
Example of connection of ULTRAFLOW® 54 and MULTICAL®.....................................................................31
Calculator with two flow sensors..................................................................................................................32
7.9 Operational check.....................................................................................................................................................32
8Functional description.............................................................................................................33
8.1 Flow measurement with ultrasound .......................................................................................................................33
8.2 Signal path, flow calculation and flow profiles........................................................................................................33
8.3 Function of ULTRAFLOW®........................................................................................................................................36
8.4 Pulse emission...........................................................................................................................................................38
8.5 Supply and power consumption of ULTRAFLOW®..................................................................................................38
8.6 Pulse output of ULTRAFLOW® .................................................................................................................................39
Galvanically coupled ......................................................................................................................................39
Galvanically separated...................................................................................................................................40
8.7 Interface connector/serial data ...............................................................................................................................42
8.8 Test mode .................................................................................................................................................................43
8.9 Externally controlled start/stop ...............................................................................................................................43
8.10 Calibration using serial data and externally controlled start/stop.........................................................................44
8.11 Accuracy....................................................................................................................................................................45
9Calibrating ULTRAFLOW®.........................................................................................................47
9.1 Technical data for ULTRAFLOW® .............................................................................................................................47
9.2 Electrical connection ................................................................................................................................................48
9.3 Suggested test points ...............................................................................................................................................49
9.4 Optimization in connection with calibration...........................................................................................................50
9.5 Pulse Tester...............................................................................................................................................................51
Technical data of Pulse Tester ......................................................................................................................51
Hold-function .................................................................................................................................................53
Push-button functions ...................................................................................................................................53
Using Pulse Tester..........................................................................................................................................53
Spare parts .....................................................................................................................................................54
Battery replacement......................................................................................................................................54
9.6 Sealing .......................................................................................................................................................................55
10 Software for Kamstrup heat/cooling meters ............................................................................57
11 Approvals ................................................................................................................................58
11.1 MID and DK-BEK 1178 –06/11/2014 ......................................................................................................................58
11.2 CE-Marking................................................................................................................................................................58
11.3 EU declaration of conformity...................................................................................................................................58
12 Troubleshooting......................................................................................................................59
13 Disposal...................................................................................................................................60
14 Technical documentation ........................................................................................................61

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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1General description
ULTRAFLOW® 54 DN150-300 is a static flow sensor based on the ultrasonic measuring principle. It is primarily used as a
volume flow sensor for thermal energy meters such as MULTICAL®. ULTRAFLOW® 54 DN150-300 has been designed for
use in heating and cooling installations where water is the heat-bearing medium.
ULTRAFLOW® 54 employs ultrasonic measuring techniques and microprocessor technology. All calculating and flow
measuring circuits are collected on one single board, thus providing a compact and rational design and, in addition,
exceptionally high measuring accuracy and reliability is obtained.
The volume is measured using bidirectional ultrasonic technique based on the transit time method, with proven long-
term stability and accuracy. Four ultrasonic transducers are used to send sound signals both against and with the flow.
The ultrasonic signal travelling with the flow reaches the opposite transducer first. The time difference between the two
signals can be converted into flow velocity and thereby also volume.
A three-wire signal cable is used to connect ULTRAFLOW® 54 to the Kamstrup MULTICAL® calculator. The cable supplies
the flow sensor and also transfers the signal from sensor to calculator. A signal corresponding to the flow –or more
correctly, a number of pulses proportional to the water volume flowing through –is transmitted.
ULTRAFLOW® 54 DN150-300 is available with internal supply, e.g. if the distance between MULTICAL® and ULTRAFLOW®
exceeds 10 metres. When there is a need to extend the cable between ULTRAFLOW® and MULTICAL®, a Cable Extender
Box can be used, which is mounted between ULTRAFLOW® and MULTICAL® to extend the cable up to 30 m. Note that
ULTRAFLOW® and MULTICAL® in these cases are not galvanically separated.
If ULTRAFLOW® 54 DN150-300 is used for other equipment (e.g. other brands of calculators), the sensor must be fitted
with a galvanically separated output module and a supply of its own. In addition, ULTRAFLOW® 54 DN150-300 features a
wide range of programmable meter factor and pulse length settings.

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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2Data
ULTRAFLOW® 54 DN150-300
2.1 Electrical data
Supply voltage
3.6 VDC ± 0.1 VDC
Supply, galvanically coupled output module
(Y=1)
Powered by MULTICAL®
Supply, galvanically separated output
module (Y=2) 1)
Mains supply
230 VAC +15/-30 %, 50 Hz
24 VAC ±50 %, 50 Hz
Power consumption
1 W
Backup
Integral SuperCap eliminates interruptions due to short-term power
failures
Supply, galvanically separated output
module (Y=3)
Battery
3.65 VDC, D-cell lithium
Replacement interval
6-years @ tBAT 30 °C
Mains supply
230 VAC +15/-30 %, 50 Hz
24 VAC ±50 %, 50 Hz
Power consumption
1 W
Backup
Integral SuperCap eliminates interruptions due to short-term power
failures
Signal cable length, from flow sensor
electronics box with galvanically coupled
output module (Y=1)
Max. 10 m (powered by MULTICAL®)
Signal cable length, from flow sensor
electronics box with galvanically separated
output module (Y=2 and 3)
Depending on calculator (use of own supply in ULTRAFLOW®).
Max. 100 m when connected to MULTICAL® (Y = 2).
See paragraph 7.6.2 for applications with MULTICAL®
Signal cable length, Cable Extender Box
Max 30 m when connected to MULTICAL® 603 or 803
EMC data
Fulfils EN 1434:2015 class C, MID E1 and E2
2.2 Mechanical data
Metrological class
2 or 3
Environmental class
Fulfils EN 1434 class C
Mechanical environment
MID M1 and M2
Ambient temperature
5…55 °C, non-condensing, closed location (indoor installation)
Protection class
IP67
When installed properly. See paragraph 7.3
Humidity
93 % RH, non-condensing
Medium in flow sensor
Water - recommended water quality as in CEN TR 16911 and AGFW FW510
Temperature of medium
2…150 °C (Heat & heat/cooling meters)
2…130 °C (Heat/cooling meters)
2…50 °C (Cooling meters)
At medium temperatures above 90 °C or
below ambient temperature, the electronics
box must be wall mounted or mounted via
the enclosed distance piece.
Storage temperature
(empty sensor)
-25…60 °C
Pressure stage
PN25, PS25 and PN16, PS16
1) It is possible to use battery supply in combination with output module (Y=2), e.g. for temporary supply of flow sensors installed at construction
sites.

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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2.3 Flow data
Nom. flow qpNom. diameter Meter factor 1) Dynamic range Flow@125 Hz 2) Dp@qpMin. cut off
[m³/h] [mm] [p/l]
qp:qiqs:qp[m³/h] [bar] [l/h]
150 DN150 1 100:1 2:1 450 0.02 300
250 DN150 0.6 100:1 2:1 750 0.055 500
400 DN150 0.4 100:1 2:1 1125 0.04 800
400 DN200 0.4 100:1 2:1 1125 0.01 800
400 DN250 0.4 100:1 2:1 1125 0.01 800
600 DN200 0.25 100:1 2:1 1800 0.022 1200
600 DN250 0.25 100:1 2:1 1800 0.022 1200
1000 DN250 0.15 100:1 2:1 3000 0.015 2000
1000 DN300 0.15 100:1 2:1 3000 0.015 2000
1) Standard meter factor. Appears from ULTRAFLOW ®label. For other meter factors see paragraph 4.
2) Saturation flow 125 Hz. Max. pulse frequency is maintained at higher flow.
Table 1. Flow data.
2.4 Materials
Wetted parts
Housing Stainless steel, W.no. 1.4307
Transducer holder Stainless steel, W.no. 1.4308
Transducer Titanium
Gaskets Fibre
Electronics box
Base, cover Thermoplastic, PC 10 % GF
Fitting hardware, Thermoplastic, PPS 40 % GF
distance piece for
electronics box
Signal cable (optional for separate ULTRAFLOW® 54)
Silicone cable (3 x 0.5 mm2)
Power supply cable 24/230 VAC (optional when selecting supply module)
Cable with PVC-mantle (2 x 0.75 mm²)
Housing, Cable Extender Box
Base, cover Thermoplastic, ABS

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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3Type overview
Nom. flow qp
[m³/h]
150 DN150x500 mm
250 DN150x500 mm
400 DN150x500 mm DN200x500 mm DN250x600 mm
600 DN200x500 mm DN250x600 mm
1000 DN250x600 mm DN300x500 mm
Installation dimensions
Flange facing type B, raised face according to EN 1092-1
Table 2. Type overview

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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4Ordering details
4.1 Type numbers of ULTRAFLOW® 54 for MULTICAL®
The table below shows a list of type numbers for ULTRAFLOW® 54 ordered with MULTICAL®
qp qi qsConnection PN Length Meter factor
[m³/h] [m³/h] [m³/h] [mm] [bar] [mm] [p/l]
65-5- FCCN -XXX 150 1.5 300 100:1 DN150 25 500 1 Stainless steel
65-5- FDCN -XXX 250 2.5 500 100:1 DN150 25 500 0.6 Stainless steel
65-5- FECN -XXX 400 4800 100:1 DN150 25 500 0.4 Stainless steel
65-5- FECP -XXX 400 4800 100:1 DN200 25 500 0.4 Stainless steel
65-5- FECR -XXX 400 4800 100:1 DN250 25 600 0.4 Stainless steel
65-5- FFCP -XXX 600 61200 100:1 DN200 25 500 0.25 Stainless steel
65-5- FFCR -XXX 600 61200 100:1 DN250 25 600 0.25 Stainless steel
65-5- FGCR -XXX 1000 10 2000 100:1 DN250 25 600 0.15 Stainless steel
65-5- FGDS -XXX 1000 10 2000 100:1 DN300 16 500 0.15 Stainless steel
XXX - code for final assembly, approvals etc. - determined by Kamstrup.
Type number
Dynamic
range
qp:qi
Material
(flow sensor housing)
Table 3. Type numbers of ULTRAFLOW® 54 for MULTICAL®.
4.2 Type numbers of separate ULTRAFLOW® 54
qp qi qsConnection PN Length
[m³/h] [m³/h] [m³/h] [mm] [bar] [mm]
65-5- FCCN -YZ -XXX 150 1.5 300 100:1 DN150 25 500 Stainless steel
65-5- FDCN -YZ -XXX 250 2.5 500 100:1 DN150 25 500 Stainless steel
65-5- FECN -YZ -XXX 400 4800 100:1 DN150 25 500 Stainless steel
65-5- FECP -YZ -XXX 400 4800 100:1 DN200 25 500 Stainless steel
65-5- FECR -YZ -XXX 400 4800 100:1 DN250 25 600 Stainless steel
65-5- FFCP -YZ -XXX 600 61200 100:1 DN200 25 500 Stainless steel
65-5- FFCR -YZ -XXX 600 61200 100:1 DN250 25 600 Stainless steel
65-5- FGCR -YZ -XXX 1000 10 2000 100:1 DN250 25 600 Stainless steel
65-5- FGDS -YZ -XXX 1000 10 2000 100:1 DN300 16 500 Stainless steel
XXX - code for final assembly, approvals etc. - determined by Kamstrup.
Type number
Dynamic
range
qp:qi
Material
(flow sensor chousing)
Table 4. Type numbers of separate ULTRAFLOW® 54. The meter factor can be programmed
according to the application.

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
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Ordering details of separate ULTRAFLOW® 54
Type number composition of separate ULTRAFLOW® 54
ULTRAFLOW®54. Type no: 65-5 -XX XX - Y Z - XXX
Dynamic range and flow
Connection and overall length
Output module
Supply module
Final assembly and marking
In addition to the basic variants listed in Table 4, you must select output module (Y), supply module (Z) as well as meter
factor programming (CC) and pulse duration (E).
Type numbers of output and supply modules
Type number overview of output modules (Y) and supply modules (Z) for separate ULTRAFLOW® 54.
Y Output module Corresponding supply module
1 Galvanically coupled module 0 (powered by MULTICAL®)
2 Galvanically separated module 0, 7, 8
3 Galvanically separated module, low power 0, 2, 7, 8
Z Supply module Corresponding output module
0 No supply 1, 2, 3
2 Battery, D-cell 3
7 230 VAC supply module 2, 3
8 24 VAC supply module 2, 3
Table 5. Output modules (Y) and supply modules (Z).
The variant with galvanically coupled output module (Y=1) is solely for use together with MULTICAL®.
The variant with galvanically separated output module (Y=2 or 3) is used in the following situations:
1) More than 10 metres cable length between MULTICAL® and ULTRAFLOW® is required.
2) For flow sensor no. 2 in connection with MULTICAL®. If two flow sensors are used together with MULTICAL®,
one must include a galvanically separated output module (Y=2 or 3).
For further details see paragraph 7.8.2 Calculator with two flow sensors.
3) ULTRAFLOW® is connected to other equipment/foreign calculators.
For more information on electrical connection, please see paragraph 7.6 Electrical connections to MULTICAL®.
Please note: Flow info cannot be read if output module with galvanic separation is used.

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
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Programming options of meter factor and pulse durations
Overview of programming options as to meter factors (CC) and pulse durations (E) for separate ULTRAFLOW®
qp
[m³/h] [p/l] [l/p] CC [ms] (E=1) [ms] (E=4) [ms] (E=5) [ms] (E=6)
150 133 3.9 - - - Default
150 10 34 -20 - -
150 25 64 -20 - -
150 100 35 -20 50 100
150 250 65 -20 50 100
150 1000 36 -20 50 100
150 2500 66 -20 50 100
250 0.6 43 3.9 - - - Default
250 10 34 -20 - -
250 25 64 -20 - -
250 100 35 -20 50 100
250 250 65 -20 50 100
250 1000 36 -20 50 100
250 2500 66 -20 50 100
400 0.4 63 3.9 - - - Default
400 100 35 -20 50 -
400 250 65 -20 50 100
400 1000 36 -20 50 100
400 2500 66 -20 50 100
600 0.25 14 3.9 - - - Default
600 100 35 -20 50 -
600 250 65 -20 50 -
600 1000 36 -20 50 100
600 2500 66 -20 50 100
1000 0.15 24 3.9 - - - Default
1000 (0.25) 4 14 3.9 - - - *)
1000 100 35 -20 50 -
1000 250 65 -20 50 -
1000 1000 36 -20 50 100
1000 2500 66 -20 50 100
*) Spare part for ULTRAFLOW®type 65-S/R/T. Configured 65-5-FGCR. No flow info.
Meter factor
Pulse duration
Table 6. Programming options as to meter factor (CC) and
pulse durations (E) for ULTRAFLOW® 54 DN150-300.
Based on a qpvalue a meter factor in Table 6 is chosen. The valid possible pulse durations are listed on the same line as
the chosen meter factor.
Example: For ULTRAFLOW® 54 qp400 m3/h a meter factor of 100 liter/pulse (CC=35) is required. Based on this meter
factor one of the pulse durations, 20 milliseconds (E4) or 50 milliseconds (E5), is selected.
Default values in Table 6 are programming values for ULTRAFLOW® 54 when connected to a Kamstrup MULTICAL®
calculator.

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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4.3 Accessories
Please note that not all article numbers can be directly ordered. Some articles must be ordered via Kamstrup service
department.
1) Obligatory when changing from mains supply module to battery supply.
1) Including 5000-290.
Article number
Description
Note
(when ordering ULTRAFLOW®)
65-000-000-2000
D-cell lithium battery with two-pole connector
3026-477 1)
Fitting for D-cell battery
Enclosed if battery supply
or “No supply” is selected
1650-157 1)
Plug for cable connection
Enclosed if battery supply
or “No supply” is selected
Article number
Description
Note
(when ordering ULTRAFLOW®)
65-000-000-7000 1)
230 VAC supply module
65-000-000-8000 1)
24 VAC supply module
5000-290
Cable between supply module and output module
Enclosed if supply module
is selected
5000-286
24/230 VAC power cable
Optional
Article number
Description
Note
(when ordering ULTRAFLOW®)
66-99-011
Output module (Y=1), galvanically coupled
66-99-012
Output module (Y=2), galvanically separated
66-99-013
Output module (Y=3), galvanically separated,
“Low power”

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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Cables
ULTRAFLOW® 54 DN150-300, when ordered with MULTICAL®, is supplied with 2.5 metres signal cable, optionally 5 or 10
metres. The cable is mounted in the ULTRAFLOW® 54 electronics box and in MULTICAL® 6xx. When ULTRAFLOW® 54 is
ordered with MULTICAL® 8xx, the calculator is supplied separately. Hence the cable is only mounted in the ULTRAFLOW®
54 electronics box.
ULTRAFLOW® 54 DN150-300, when ordered as a separate flow sensor, is optionally available with signal cable in lengths
of 2.5, 5 or 10 metres. The cable is mounted in the flow sensor’s electronics box.
If 24/230 VAC supply module is selected, the sensor is optionally available with power supply cable. The cable is mounted
in the flow sensor's electronics box from the factory.
Cable Extender Box
Cable Extender Box (Type 6699-036) enables a signal cable length of up to 30 m between ULTRAFLOW® and MULTICAL®.
The equipment supports flow-info, but not galvanic separation (for more information see paragraph 4.2.2). Cable
Extender Box (Type 6699-036) must be ordered separately.
Kamstrup offers signal cables in lengths of 2.5 m (Type 5000-333), 5 m (Type 5000-259) and 10 m (Type 5000-270), which
can be ordered separately. In combination with the signal cables, which are typically delivered with ULTRAFLOW®,
different total lengths of up to 20 m between ULTRAFLOW® and MULTICAL® can be realized. With signal cables of varying
lengths but of the same quality as Kamstrup’s signal cables, it is possible to find individual solutions for cable extension
up to 30 m between ULTRAFLOW® and MULTICAL®. For electrical connections, see paragraph 7.6.4 Electrical connection
of Cable Extender Box.
Article number
Description
Note
(when ordering ULTRAFLOW®)
5000-333
2.5 m silicone cable (3-wire)
Default for ULTRAFLOW®
when ordered with
MULTICAL®
Optional for separate
ULTRAFLOW®
5000-259
5 m silicone cable (3-wire)
Optional
5000-270
10 m silicone cable (3-wire)
Optional
3026-207
Mounting fitting for electronics box
Enclosed (mounted)
6561-332
Short distance piece
3026-507
Long distance piece
Enclosed
1051-006
Collar band for long distance piece
Enclosed
1150-140
Gasket, DN150 PN25 (1 pc)
Enclosed (2 pcs.)
1150-139
Gasket, DN200 PN25 (1 pc)
Enclosed (2 pcs.)
1150-141
Gasket, DN250 PN25 (1 pc)
Enclosed (2 pcs.)
1150-164
Gasket, DN300 PN16 (1 pc)
Enclosed (2 pcs.)

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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5Dimensional sketches
5.1 ULTRAFLOW® 54 DN150-300
All measurements are in mm, unless otherwise stated.
Figure 1
Nom.
diameter
PN
Nom. flow
qp
L
D
k
Bolts
B1
E
Steel tube
length
Approx.
weight
[bar]
[m³/h]
Quantity
Thread
d2
C
kg
DN150
25
150 & 250
500
300
250
8
M24
26
119
282
650
37
DN150
25
400
500
300
250
8
M24
26
140
303
625
36
DN200
25
400 & 600
500
360
310
12
M24
26
166
329
570
49
DN250
25
400 & 600
600
425
370
12
M27
30
166
329
570
79
DN250
25
1000
600
425
370
12
M27
30
194
357
500
75
DN300
16
1000
500
460
410
12
M24
26
194
357
500
76
Flange facing type B, raised face according to EN 1092-1
Table 7
Figure 2

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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5.2 Cable Extender Box
(a)
(b)
Figure 3. Cable Extender Box seen from the front (a) and from the side (b).

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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6Pressure loss
Pressure loss in a flow sensor is stated as max. pressure loss at qp.
According to EN 1434 max. pressure loss must not exceed 0.25 bar unless the energy meter includes a flow controller or
functions as pressure reducing equipment.
The pressure loss in a meter increases with the square of the flow and can be stated as:
pkvQD=
where:
Q = volume flow rate [m³/h]
kv = volume flow rate at 1 bar pressure loss
Dp = pressure loss [bar]
Nom. flow qpNom. diameter Length Δp@qpQ@0,25 bar
[m³/h] [mm] [mm] [bar] [m³/h]
150 65-5- FCCN -XXX DN150 500 0.02
250 65-5- FDCN -XXX DN150 500 0.055
B400 65-5- FECN -XXX DN150 500 0.04 2000 1000
65-5- FECP -XXX DN200 500
65-5- FECR -XXX DN250 600
65-5- FFCP -XXX DN200 500
65-5- FFCR -XXX DN250 600
65-5- FGCR -XXX DN250 600
65-5- FGDS -XXX DN300 500
1) XXX - code for final assembly, approvals etc. - determined by Kamstrup. A few variants may not be available in
national approvals.
D
1000
0.015
8160
Graph
kv
Type number 1)
0.022
A
1060
530
C
400
0.01
4040
2020
600
4080
Table 8. Pressure loss table.
Figure 4. Pressure loss graphs.
0,01
0,1
1
100 1000 10000
Dp [bar]
Flow [m³/h]
Dp ULTRAFLOW®54 DN150-300
A
B
C
D

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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7Installation
Please read this chapter carefully before installing the meter.
In case of incorrect mounting, Kamstrup's guarantee obligations no longer apply.
By connecting to 230 V supply, there is a risk of electric shock.
When working on the flow sensor in the installation, there is a risk of outflow of (hot) water under pressure.
At a media temperature higher than 60 °C, the flow sensor should be shielded from unintended contact.
Prior to installation of the flow sensor, the system should be flushed.
The flow sensor must be suitable for the foreseeable operating conditions in the installation.
New fibre gaskets in original quality must be used.
Correct flow sensor position (inlet or outlet) appears from the front label or the display of MULTICAL®. The flow direction
is indicated by an arrow on the flow sensor. See Figure 7 and Figure 8.
Please note: ULTRAFLOW® 54 may be lifted in the lifting rings only.
Pressure stage of ULTRAFLOW® 54: PN25, PS25/PN16, PS16. See marking on label.
Temperature of medium, ULTRAFLOW® 54: 2…150 °C/2…130 °C/2…50 °C. See marking on label.
Mechanical environment: M1 and M2 (fixed installation with minimum vibration and fixed installation with considerable
or high vibration level respectively). See marking on label.
Electromagnetic environment: E1 and E2 (housing/light industry and industry respectively). See marking on label.
The meter’s signal cables must be drawn at min. 25 cm distance to other installations.
Climatic environment: Must be installed in environments with non-condensing humidity as well as in closed locations
(indoor installation).
The ambient temperature must be within 5…55 °C.
Maintenance and repair: The flow sensor is verified separately and can, therefore, be separated from the calculator. It is
permitted to replace the supply and change the supply type. For battery supply a lithium battery with connector from
Kamstrup A/S must be used. Lithium batteries must be correctly handled and disposed of (see Kamstrup document 5510-
408, ”Lithium batteries - Handling and disposal”). Other repairs require subsequent re-verification in an accredited
laboratory.
If ULTRAFLOW® 54 is connected via a galvanically coupled output module, the flow sensor may be connected to a
Kamstrup MULTICAL® calculator only.
If other calculator types are connected, ULTRAFLOW® 54 must be fitted with a galvanically separated output module and
a power supply of its own.
Note: Please make sure that the meter factor is identical on flow sensor and calculator.
The steel tube between flow sensor housing and electronics box may not be disassembled.
At medium temperatures above 90 °C or below ambient temperature the flow sensor's electronics box must be mounted
via the enclosed distance piece. Alternatively, the electronics box can be wall mounted at a distance of minimum 170 mm
from the sensor.
If ULTRAFLOW® is insulated, the electronics box must be kept out of the insulation.
In order to prevent cavitation, the static pressure at the flow sensor outlet must be min. 1.5 bar at qpand min. 2.5 bar at
qs. This applies to temperatures up to approx. 80 oC.
When the installation has been completed, water flow can be turned on. The valve on the inlet side must be opened first.

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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7.1 Guidelines for dimensioning ULTRAFLOW® 54
In connection with installations, it has proved practical to work with a static pressure at the flow sensor outlet according
to Table 9. This minimises the risk of measuring errors as a result of cavitation or air in the water.
Nominal flow qp
Recommended
min. static pressure
Max. flow qs
Recommended
min. static pressure
[m³/h] [bar] [m³/h] [bar]
150 1300 2
250 1.5 500 2.5
400 (DN150) 1.5 800 2.5
400 1800 2
600 1.5 1200 2.5
1000 1.5 2000 2.5
Table 9. Recommended minimum static pressure at flow sensor outlet.
It is not necessarily cavitation in the sensor itself, but also bubbles from cavitating pumps and regulating valves mounted
before the sensor. It can take some time until such bubbles have been dissolved in the water. Furthermore, water can
include air which is dissolved in the water. The amount of air which can be dissolved in water depends on pressure and
temperature. This means that air bubbles can be formed due to a decrease in pressure, e.g. caused by a velocity rise in a
pipe contraction or in the sensor. The risk of these factors affecting accuracy is reduced by maintaining a suitable pressure
in the system.
In relation to the recommended static pressure, the steam pressure at the current temperature must also be considered.
The recommended static pressure applies to temperatures up to approx. 80 oC.
The steam pressure is the pressure where steam and liquid are in equilibrium at the current temperature (boiling point
at a given pressure). At low temperature and high pressure, water is in the liquid phase. At high temperature and low
pressure, water is in the steam phase. The blue curve (the steam pressure curve) in Figure 5 thus characterizes the
equilibrium of the liquid and steam phases. This means that the static pressure in water must be increased at a given
temperature to avoid the steam phase that is shown in the lower right corner of the graph in Figure 5.

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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Figure 5. Steam pressure of water. At low temperature and high pressure, water is in the liquid phase.
At high temperature and low pressure, water is in the steam phase. The blue curve
characterizes the equilibrium of the liquid and steam phases.
Furthermore, it must be taken into account that the above static pressure is lower after a contraction than before (e.g.
at cones). This means that the static pressure –when measured elsewhere in the installation–might be different from
the pressure at the flow sensor outlet.
0
1
2
3
4
5
6
80 90 100 110 120 130 140 150
[bar]
[°C]
Steam pressure
Steam phase
Liquid phase

TECHNICAL DESCRIPTION ULTRAFLOW® 54 DN150-300
Kamstrup A/S ·Technical description ·5512-876_M1_GB_12.2020
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7.2 Orientation of ULTRAFLOW® 54
ULTRAFLOW® can be installed horizontally,
vertically, or at an angle.
ULTRAFLOW® 54 is normally installed
horizontally, with the lifting rings oriented
vertically. The ultrasound paths in the flow
sensor tube will thus be vertical, which is
optimal in connection with possible
stratification of the medium.
Mounting ULTRAFLOW® 54 in lifting ring
ULTRAFLOW® 54 can be mounted hanging from one of the two lifting rings depending on required flow direction. The
enclosed distance piece can be used to secure optimal position of the electronics box. (See paragraph 7.3)
Figure 7
Figure 8
Flow
Flow
Figure 6