Ultrasonic water Meter
DN15-DN40
Instructions
Important tips
Before installing, please read this manual carefully. This manual is aimed at trained
professionals; therefore, it does not include the basic installation steps. If there is any
change in the product model and appearance, please refer to the actual product. This
instruction applies equally to the case without affecting the function of the product.
For details of the change, please contact the company.
This product is a precision measuring instrument , test strictly before leaving
factory, please operate by professional personnel.
If the product is normal operation or need to be repaired, please contact our
company or our authorized dealers;
This product is a precision measuring instrument, please do not throw it down or
hit it;
1
Product introduction
1.1 Product features
The low starting flow, minimum flow rate is lower than the 1/3 of the traditional
water meter;
Bi-directional flow measurement;
The water temperature detection, temperature alarm;
No moving parts, no wear, can be long-term and stable operation;
More than 10 years battery operated life span;
Be installed at any angle, the measurement accuracy is not affected,
No air
measuring;
Ultrasonic signal quality detection;
Magnetic induction button;
The overall IP68 design, long-term immersion in the work;
To support M-Bus, RS485, infrared, wireless communication interface etc.;
Be compatible with GB/T 26831、CJ/T 188 and MODBUS RTU communication
protocol;
The water meter is required in accordance with drinking water standards;
LCD screen can be changed by touching the magnetic switch;
SCF series(SCF15、SCF20、SCF25）are valve type.The valve can be controled on or
off by command;
1.2 Technical parameters and characteristics
1.2.1 Technical Specifications
1.2.2 Outputs
1.2.3 Flow Rate Performance Data
1.2.4 Dimensions
Note: * for the default length
2 LCD
2.1 Liquid crystal display interface
There are two modes of display mode:
One is the standard menu display mode:;
the other is a high precision menu display mode;
switch between standard menu mode and high-precision menu mode by using
the factory's meter reading software;
Standard menu display is divided into single-screen menu display and ordinary
menu display;
With the magnetic switch can switch the same menu of the display items;
Magnetic switch to use: with a magnetic pen touch the product LCD screen
icon position;
Precision Class
class 2
Standards
OIML R49, EN 14154, ISO4064
Volume Display Options
1. Net (Forward less reverse)
2. Forward only
3. Forward & reverse alternating
Temperature grade
T50（T30 optional）
Pressure loss grade
Δp40
Power Source
3.6V Li-battery: 10* years
Or additional power supply
24VDC
Environmental Protection
IP68
(Additional 24VDC power supply, IP65)
Ambient operation temp
Class C (class B, class I optional)
Maximum working pressure
1.6MPa
Range ratio （q
p
：q
i
）
250:1（80:1、100:1、160:1、400:1 500:1 optional）
Data Logger
Volumes: 480 Daily data;36 Monthly data;16 Yearly
data
Alarms data: 32
Maximum flow reading (m
3
)
Forward: 99999.99999;
reverse:-9999.99999
Electromagnetic
environment level
Class E1(class E2 optional)
* remark
Battery must be in normal amibent temperature
conditions, also depends on the data transmission
frequency and correct meter battery installation
(positive electrode on the top)
Standard interface
Infra-red、M-Bus、RS485
Analog Output
4~20mA:The Analog Output shows the currently
measured flow rate
Wireless interface
wM-Bus: T1 868MHz
LoRa:470MHz
NB-IoT
GPRS
Digital (pulse) Output
OC: Volume
Nominal diameter
DN(mm)
15
20
25
32
40
Maximum flow Q
4
( m
3
/h)
3.125
5
7.875
12.5
20
Common flow Q
3
( m
3
/h)
2.5
4.0
6.3
10.0
16.0
Boundary flux Q
2
( m
3
/h)
0.016
0.026
0.04
0.064
0.102
Minimum flow Q
1
( m
3
/h)
0.01
0.016
0.025
0.04
0.064
Pressure loss grade Δp
40
40
40
40
40
Nominal
diameter
15
20
25
32
40
L(mm)
165/110
＊
190/130/195
＊
260/160/225
＊
260/180/230
＊
300/200/245
＊
L1(mm)
97
97
97
97
97
L2(mm)
259/204
294/234/299
380/280/345
380/300/350
428/328/373
H(mm)
91
91
91
128
139
H1(mm)
31
28
25
29
36
W(mm)
90
90
90
90
90
Meter
screw
thread A
（inch）
G
3
/
4
B
G1B
G1
1
/
4
B
G1
1
/
2
B
G2B
Threaded
for union B
（inch）
R
1
/
2
R
3
/
4
R1
R1
1
/
4
R1
1
/
2
