lanry SC7 Series Instructions

Ultrasonic water Meter
Instructions
DN15-DN40
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
Precision Class class 2
Standards OIML R49, EN 14154, ISO4064
1. Net (Forward less reverse)
Volume Display Options 2. Forward only
3. Forward & reverse alternating
Temperature grade T50（T30 optional）
Pressure loss grade Δp40
3.6V Li-battery: 10* years Or additional power supply
Power Source
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 ：q ） 250:1（80:1、100:1、160:1、400:1 500:1 optional）
p i
Volumes: 480 Daily data;36 Monthly data;16 Yearly
Data Logger data
Alarms data: 32
Forward: 99999.99999; reverse:-9999.99999
Maximum flow reading (m 3 )
Electromagnetic
Class E1(class E2 optional)
environment level
Battery must be in normal amibent temperature
conditions, also depends on the data transmission
* remark
frequency and correct meter battery installation
(positive electrode on the top)
1.2.2 Outputs
Standard interface Infra-red、M-Bus、RS485
4~20mA:The Analog Output shows the currently
Analog Output
measured flow rate
wM-Bus: T1 868MHz
LoRa:470MHz
Wireless interface
NB-IoT
GPRS
Digital (pulse) Output OC: Volume
1.2.3 Flow Rate Performance Data
Nominal diameter
15 20 25 32
DN(mm)
Maximum flow Q ( m /h) 3.125 5 7.875 12.5
3
4
Common flow Q ( m 3 /h) 2.5 4.0 6.3 10.0
3
Boundary flux Q ( m 3 /h) 0.016 0.026 0.04 0.064
2
Minimum flow Q ( m 3 /h) 0.01 0.016 0.025 0.04
1
Pressure loss grade Δp 40 40 40 40
1.2.4 Dimensions
Nominal
15 20 25 32
diameter
165/110 190/130/195 260/160/225 260/180/230
L(mm)
＊ ＊ ＊ ＊
L1(mm)
97 97 97 97
L2(mm)
259/204 294/234/299 380/280/345 380/300/350
H(mm)
91 91 91 128
H1(mm)
31 28 25 29
W(mm)
90 90 90 90
Meter
screw
G 3 / B G1B G1 1 / B G1 1 / B
thread A 4 4 2
（inch）
Threaded
for union B
R 1 / R 3 / R1 R1 1 /
2 4 4
（inch）
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;
40
20
16.0
0.102
0.064
40
40
300/200/245
＊
97
428/328/373
139
36
90
G2B
R1 1 /
2