measuring
Ultrasonic Flow Meter
stationary • portable
•
monitoring
•
for liquids
analysing
OO
Media: ultrasonic conducting liquids
OO
emperature measuring range:
T
-40 ... 150 °C
OO
Accuracy: up to 1%
OO
Flow velocities: 0 ... ±30 m/s
OO
Pipe sizes: DN 10 ... DN 6000
OO
or the most common materials
F
(ultrasonic conductive) like steel and
plastics
OO
Heat quantity measurement
1/10- 2015
KOBOLD companies worldwide:
ARGENTINA, AUSTRALIA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHILE, CHINA, COLoMBIA,
CZECHIA, EGYPT, FRANCE, GERMANY, GREAT BRITAIN, HUNGARY, INDIA, INDONESIA, ITALY,
MALAYSIA, MEXICO, NETHERLANDS, PERU, POLAND, Republic of Korea, ROMANIA,
SINGAPORE, SPAIN, SWITZERLAND, TAIWAN, THAILAND, TUNISIA, turkey, USA, VIETNAM
S5
DUC
KOBOLD Messring GmbH
Nordring 22-24
D-65719 Hofheim/Ts.
Head Office:
+49(0)6192 299-0
+49(0)6192 23398
info.de@kobold.com
www.kobold.com
1
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Applications Areas
OO Power plants (cooling water), district heating,
pump protection, condensate and boiler feedwater
measurements
OO Water and waste water industry (treatment plant inflow),
treatment plant outflow, drinking water networks,
verification of water meters, pump protection, distribution
and consumption measurements, leakage detection
OO Facility management (hot and cold water, cooling systems
and air conditioning systems, optimisation of energy
efficiency, pump control, optimisation of heating and air
conditioning)
OO Chemical and petrochemical industry (crude oil and light
oil), raw and waste water, aggressive and toxic media,
measurement of heat carriers (e.g. thermal oils)
OO Food and beverage (correct hygienic measurement of
media, heat volume measurement in energy supply)
2
Features
text based user interface with LED backlight QVGA
display
OO User interface control with 6 soft buttons
OO Quick-Mount-System with space bar for ultrasonic
transducers 1 MHz and 2 MHz
OO AFC compensation algorithm: compensates influences of
changing media temperatures to the ultrasonic transducer
distance
OO Reynolds compensation: compensates influences of
media viscosity on the ultrasonic measurement
OO Ultrasonic transducers AND technology: reducing signal
echoes and dispersion effects and having a positive effect
on the signal to noise ratio
OO 2 channel operation (only with stationary transmitter)
OO Clear
Flow Transmitter
DUC-xP portable flow transmitter
The flow measurement, thermal output and heat quantity
measurement is possible for one measurement point with
a pair of ultrasonic transducers in combination with a pair
of PT100 temperature sensors. Other features of DUC-xP
transmitter are battery operation, integrated data logger and
a stable aluminum / ABS housing.
DUC-xF stationary 1-channel flow transmitter
Flow measurement, thermal output and heat quantity
measurement is applicable for one measurement point in
combination with one pair ultrasonic transducers and one
pair PT100.
DUC-xF stationary 2-channel flow transmitter
Flow measurement is applicable for one or two different
measurement points with two pairs of ultrasonic transducers.
DUC-xF 2-channel version supports different mathematical
operations like CH1+CH2, CH1-CH2, (CH1+CH2)/2; due to
the appliance of two pair ultrasonic-transducers mounted.
Opposite mounting of 2 pairs of transducers on the same pipe
will increase the accuracy of measurement, a redundancy
operation is possible and disruptive influences of gaseous
flow profile will be compensated. Thermal output and heat
quantity measurement is only supported in operation mode
(CH1+CH2)/2.
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/10- 2015
Description
DUC uses the effect of acceleration and decelaration of
acoustic signals travelling in a moving fluid. Two ultrasonic
clamp on transducers are mounted (from outside) on a pipe
and produce an acoustic path. The transducers send and
receive acoustic signals and the transit times t1 and t2 are
measured by an electronic flow transmitter. The signal from
transducer A towards transducer B is accelerated by the flow
(short t1). The return signal from transducer B to transducer A
is decelerated by the flow (longer t2). The difference between
t1 and t2 together with the path length L can be used to
determine the average flow velocity. This principle is known
as the acoustic time-of-flight principle. The flow is calculated
from the geometry data of the pipe and the flow velocity.
DUC emits coded signal pattern into the pipe. The received
signals will be compared with the sent signals and only signal
pattern which correlates with the original one will be used for
flow calculation (cross correlation based signal evaluation).
The calculation of the flow is done with the integrated DSP
(digital signal processor). Thus the calculation has high
sampling rates.
The DSP calculation of the time-of-flight is a pure digital
transit time measurement, it works very precise, is completely
drift and maintenance free and there is no need for recurring
calibrations.
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Ultrasonic Transducers
DUC-W standard ultrasonic transducers
The ultrasonic transducers are mounted onto the piping and
transmit and receive the ultrasonic signals that are used in the
flow transmitter to calculate the volumetric flow rate.
Ultrasonic transducer DUC-Wx21 (2 MHz):
Red housing,
pipe diameters:
DN10 … DN100
Operating temperature: -40 °C … 150 °C
Protection:
IP 68 (for stationary transducer)
Material:PEEK/aluminium
DUC-WP21
Measurement Accuracy for each Channel
Pipe size
10 - 25 mm
25 - 50 mm
50 - 300 mm
300 - 6000 mm
DUC-WF21
Flow velocity
Accuracy
0…2 m/s
± 0.05 m/s
2…30 m/s
2.5% of reading
0…2 m/s
± 0.03 m/s
2…30 m/s
1.5% of reading
0…2 m/s
± 0.02 m/s
2…30 m/s
1% of reading
0…2 m/s
± 0.02 m/s
2…30 m/s
1% of reading
Ultrasonic transducer DUC-Wx10 (1 MHz):
Blue housing,
pipe diameters:
DN32 … DN400
Operating temperature: -40 °C … 150 °C
Protection:
IP 68 (for stationary transducer)
Material:PEEK/aluminium
DUC-WP10
DUC-WF10
Ultrasonic transducer DUC-Wx05 (0,5 MHz):
Green housing,
pipe diameters:
DN200 … DN6000
Operating temperature: -40 °C … 150 °C (with stainless
steel strap) 1)
-40 °C … 80 °C (with textile
tightening straps)
Protection:
IP 68 (for stationary transducer)
Material:PEEK/aluminium
DUC-WP05
1/10 - 2015
1)
DUC-WF05
Attention: stainless steal strap is only for one-time use
No responsibility taken for errors;
subject to change without prior notice.
www.kobold.com
3
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Technical Details
Flow transmitter DUC-MF (stationary) Flow transmitter DUC-MP
(portable)
DUC-MF (stationary)
ultrasonic time-of-flight
Physical Quantities
volume flow, flow velocity, power
volume flow, flow velocity, power
Installation
wallmount
portable
Counter
heat quantity, volume
heat quantity, volume
Measuring range
-30 ... +30 m/s
-30 ... +30 m/s
Signal damping
0 ... 100 s (adjustable)
0 ... 100 s (adjustable)
Diagnostic functions
ultrasonic
velocity, signal strength, SNR, signal
quality, Amplitude, energy,
oscilloscope function for graphical display and
evaluation of signal
ltrasonic velocity, signal strength, SNR, signal
u
quality, Amplitude, energy,
oscilloscope function for graphical display and
evaluation of signal
Human interface
intuitive via 8 soft keys, clear text display
intuitive via 8 soft keys, clear text display
Menu language packages
EN/DE/FR,
EN/ES/FR 1)
EN/RU/CHN 1)
EN/DE/FR,
EN/ES/FR,
EN/RU/CHN
Flow transmitter units
metric / US
metric / US
2 x 4 … 20 mA, 1 x pulse,
1 x micro USB, 1 x relay
Outputs
2 x 4 ... 20 mA, 1 x pulse with 1 channel/
2 x pulse with 2 channel,
1 x micro USB, 1 x relay
optional RS232 / RS485
(RS485 supports Modbus communication)
Additional inputs for
heat measurement
2 x Pt 100
2 x Pt 100
Measuring channels
1, optional 2
1
90 - 240 VAC, optional18-36 VDC
Integrated battery or 100 ... 240 VAC
wide range power supply
Power supply
2)
4
Battery operation
-
approx. 5 h
Integrated data storage
-
4 GB
Saved data
-
measuring and diagnostic value counter
Data format
-
text format (CSV) directly importable into all
popular programs like MS Office,
MS Works, etc.
Memory cycle
-
adjustable, 1 s up to 24 h
Protection
IP 65
IP 40
Cable connections
screw terminals
BNC-connection
Housing
ABS
Aluminium, ABS
Operating temperature
-20 …. 60 °C
-20 …. 60 °C
Dimensions
260 x 240 x 120 mm (W, H, D)
265 x 190 x 70 mm (W, H, D)
Weight
1.3 kg
1.5 kg
Display
QVGA (320 x 240), black and white, adjustable
backlight
QVGA (320 x 240), black and white, adjustable
backlight
Measuring modes 2)
CH1, CH2, CH1+CH2, CH1-CH2,
(CH1+CH2)/2
-
for 1-channel operation only
for 2-channel operation only
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/10- 2015
1)
DUC-MP (portable)
ultrasonic time-of-flight
Measuring principle
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
General Specifications Ultrasonic transducer
US-transducer
US-Wandler
model
Modell
05
10
21
Rohrnennweite
Pipe size
DN 10 ... DN 100
DN 32 ... DN400
DN 200 ... DN 6000
Ultrasonic transducers for transit time measurement
Model
Description
Media temperature
Pipe sizes
-40 … 150 °C
DN 10 ... DN 100
-40 … 150 °C
DN 32 ... DN 400
DUC-WP05
-40 … 80 °C
-40 … 150 °C (optional)
DN 200 ... DN 6000
DUC-WF21
-40 … 150 °C
DN 10 ... DN 100
-40 … 150 °C
DN 32 ... DN 400
-40 … 150 °C
DN 200 ... DN 6000
DUC-WP21
DUC-WP10
DUC-WF10
portable
stationary
1/10 - 2015
DUC-WF05
No responsibility taken for errors;
subject to change without prior notice.
www.kobold.com
5
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Mounting arrangement of the ultrasonic transducer
Mounting in V-mode (standard)
Transducer
Flow, velocity, volume
4 ... 20 mA/pulse
Mounting in Z-mode (applicable for big pipe dimensions or high
acoustic damping)
Transducer
Flow, velocity, volume
4 ... 20 mA/pulse
Transducer
Mounting in W-mode (for pipe dimensions < DN 32)
Transducer
Flow, velocity, volume
6
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/10- 2015
4 ... 20 mA/pulse
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Measuring mode 2-channel system
Simultaneous measurement at 2 different measurement points with two pairs of ultrasonic transducers
Channel 1
Channel 2
Flow, velocity, volume
4 ... 20 mA/pulse
Simultaneous measurement with two pairs of ultrasonic transducers at one common metering point
(Compensation of cross-flow effect on measurement, redundancy operation and higher accuracy)
Channel 1
Flow, velocity, volume
4 ... 20 mA/pulse
1/10 - 2015
Channel 2
No responsibility taken for errors;
subject to change without prior notice.
www.kobold.com
7
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Measurement of heat quantity
DUC-M is more than a flow meter. Together with external
temperature sensors it can also measure the heat transfer of
your media. Only two optional Pt 100 have to be connected
to DUC-MF for measuring feed / return temperatures (RTD
1 / RTD 2) within the heating circuit.
The measured temperature difference and the measured flow
Q can then be used to calculate the thermal output and the
heat quantity.
Heat flow / heat quantity
Flow / volume
Feed temperature
???
Transmitter
Sensor
RTD 2
RTD 1
8
P out
Return temperature
transmitter
Q flow rate
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/10- 2015
P in
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Order Details Transmitter (Example DUC-M F 1 0 0 D R2)
Model
DUC-M
1)
Version
Channel
Supply
Ex-approval
F = stationary
1 = 1-channel
2 = 2-channel
0= 90 ... 240 VAC
7= 18 ... 36 VDC
0= none
E= ATEX Exd (suitable
for zone 1 and 2)
(in preparation)
P = portable
1 = 1-channel
0= 100 ... 240 VAC
0= none
Language packages
Options
00 = none
R2 = RS232
R4 = RS485
RL1)= data ­logger
D= EN/DE/FR
S= EN/ES/FR1)
C= EN/RU/CHN1)
00 = none
Only with 1-channel
Order Details Transducer (Example DUC-W F 21 0 05)
Model
DUC-W
Version
F = stationary
V1) = stationary, PVC
Frequency (NW)
10 = 1 MHz (DN32 ... DN400)
21 = 2 MHz (DN10 ... DN100)
05 = 0,5 MHz (DN200 ... DN6000)
P = portable
1)
On request
2)
Not for PVC transducer
3)
Ex-approval
Cable length
0= none
1= ATEX Exd (suitable for
zone 1 and 2)
(in preparation)2)
05 = 5 m
10 = 10 m
20 = 20 m
30 = 30 m
40 = 40 m
50 = 50 m
XX3)= other (multiple of 10 m)
0= none
03 = 3 m
Max. length 250 m
Delivery Scope for portable Transmitter
Following accessories are included in shipment:
57
1. Hard-shell carrying case
2. Operating manual on CD, Quickstart printed
3. Analogue output cable Mini DIN, crocodile clips 0.5 m
4. Relay / pulse output cable Mini DIN crocodile clips, 0.5 m
5. USB cable
490
6. Signal cable (1 pair), BNC-connection, 3 m
7. Measuring tape
Delivery Scope for Transducer (portable and stationary)
Following accessories are included in shipment:
1. Mounting rail
2. Coupling foil for stationary, ultrasonic coupling gel for
portable device
1/10 - 2015
3. Suitable mounting accessories, such as strap or chains,
depending on the transducer type
No responsibility taken for errors;
subject to change without prior notice.
www.kobold.com
9
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Order Details Acessories / Spare Parts (Example DUC-Z F P1)
Model
Version
Description
KG= ultrasonic coupling gel, tube, 10 g
MS= mounting rails suitable for transducer DUC-WF10 (max. DN 400), max.150 °C
PT = PT100, 1 pair, MiniDIN, 5 m
P1 = PT100, 1 pair, MiniDIN, 10 m
P2 = PT100, 1 pair, MiniDIN, 20 m
WK= factory calibration 1 MHz or 2 MHz, 5-point on pipe size DN 80
WR= factory recalibration 1 MHz or 2 MHz 5-point on pipe size DN 80
F = stationary
10 = coupling foil 2 pair for DUC-WF10
21 = c
oupling foil 2 pair for DUC-WF21
05 = coupling foil 1 pair for DUC-WF05
SB = short mounting rails (spacer short bar) suitable for DUC-WF21, max. 150 °C
EB = stainless steel strap (1 pair) suitable for ultrasonic transducer DUC-WF21, DUC-WF10 (max. DN400)
BE = stainless steel strap (1 pair) suitable for ultrasonic transducer DUC-WF05
DUC-Z
DE = venting unit for gaseous fluids, pipe connection max. DN 25
KG= ultrasonic coupling gel, tube, 10 g
MS= mounting rails suitable for transducer DUC-WP10 (max. DN 400), max.150 °C
SB = short mounting rails (spacer short bar) suitable for DUC-WP21, max. 150 °C
P = portable
MK= clamping chains (1 pair) suitable for transducer DUC-WP21, DUC-WP10 (max. DN 400), max. 150 °C
BT = textile tightening straps suitable for transducer DUC-WP05, max. 80 °C
PT = PT100, 1 pair, Mini DIN, 5 m
WK= factory calibration 1 MHz or 2 MHz 5-point on pipe size DN 80
WR= factory recalibration 1 MHz or 2 MHz 5-point on pipe size DN 80
10
WD= wall thickness gauge (Universal)
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/10- 2015
U
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Dimensions [mm]
Transmitter DUC-MF (stationary)
Front
Transducer DUC-WF (stationary)
2 MHz
158
256
65
58
16
1 MHz
Sideup
25
76
front
0,5 MHz
50
bottom
57
142
40
Bottom
1/10 - 2015
80
No responsibility taken for errors;
subject to change without prior notice.
www.kobold.com
11
Ultrasonic Flow Meter stationary • portable for liquids Model DUC
Dimensions [mm] (continuation)
Transmitter DUC-MP (portable
Transducer DUC-WP (portable)
2 MHz
248
31
51
185,2
68
20
1 MHz
Backside of aluminium body
43,9
42,45
42
220
78
0,5 MHz
50
142
57
Sideview of aluminium body, including cover plate
40
138
53,7
80
12
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/10- 2015
164,4
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