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It is a reliable measuring instrument for trade settlement by measuring the velocity change caused by the propagation of ultrasonic wave in pipeline water, measuring the velocity of water flow, and then calculating the water flow through.
15814469667 Ms.Chen
Base Table Parameters
| Functional parameters | describe |
| Pipe material | copper |
| R value | 200/250 |
| ambient temperature | 0～50℃ |
| Working water pressure | ≤1M Pa |
| electromagnetic environment | E1 |
| Installation environment | Category B |
| Measuring electronic circuit | Working voltage: 3.6V ～ 3.2V, silent current: ≤ 5 μ A |
| Measuring battery | 3.6V high-energy lithium battery, valid for 10 years (temperature ≤ 30 ℃, basic communication mode) |
| Interactive keys | Touch sensitive button |
| data storage | 48 month operation status information |
| Communication mode |
M-BUS |
Product features
| Small starting flow and wide range ratio; |
| It can record forward flow and reverse flow, with high measurement accuracy and stability |
| There are no moving components in the pipeline, with small pressure loss and no component wear; |
| Low power circuit design, long battery life |
| It can be installed at any angle, and it is not required to be horizontal or vertical |
| The waterproof protection design is strengthened, and the protection grade of the whole machine reaches IP68, which can be installed in the surface well |
| Large capacity data storage, recording complete operation information, including 36 month time-sharing consumption information |
| Multiple communication modes, including wired meter reading, wireless ad hoc network meter reading, and mobile self-service meter reading, to easily realize real-time data monitoring |
| It is designed with alarm function for detecting water leakage and tube burst |
Flow technical parameters
|
Nominal |
Pickup |
Minimum |
Boundary |
Common |
Overload |
Accuracy class |
|
(mm) |
Qst (L/h) |
Q1 (L/h) |
Q2 (L/h) |
Q3 (m3/h) |
Q4 (m3/h) |
|
|
15 |
4 |
12.5 |
20 |
2.5 |
3 |
2 |
|
20 |
4 |
20 |
32 |
4 |
5 |
|
|
25 |
6 |
39 |
62 |
6.3 |
7 |
|
|
32 |
8 |
62 |
99 |
10 |
12 |
|
|
40 |
10 |
80 |
128 |
16 |
19 |
Dimensions
|
Nominal diameter |
Long |
Wide |
High |
Nozzle thread D |
|
(mm) |
(mm) |
(mm) |
(mm) |
|
|
15 |
165 |
86 |
78 |
G1/2B |
|
20 |
195 |
90 |
80 |
G3/4B |
|
25 |
225 |
95 |
85 |
G1B |
|
32 |
230 |
100 |
90 |
G3/2B |
|
40 |
245 |
106 |
96 |
G2B |
Flow error curve
Pressure loss curve
Pipe material: copper；
Shell material: polyphenylene sulfide+glass fiber
Ambient temperature: 0~50 ℃；
Fluid water temperature: 0+℃～ 30 ℃;
Working water pressure: ≤ 1M Pa；
Installation environment: Class B;
Electromagnetic environment: E1;
Sensitivity level：U10,D5 ；
Electronic circuit: 3.6V ～ 3.2V, silent current ≤ 5 μ A；
Battery: 3.6V high-energy lithium battery, with an effective service life of 10 years (temperature ≤ 30 ℃, basic communication mode).
Interactive button: touch sensitive button;
Wireless meter reading: LoRa wireless;
Wired networking: M-bus, supporting multiple groups of protocols;
Self service meter reading: sNFC+smart phone
Data storage: 48 month operation status information;
Executive standard:
GB/T 778.1~3-2007 《Cold water meter》
ISO 4064-1~3:2014 Water meters for cold potable water and hot water
Measurement relative error：
Low area (Q1 ≤ Q ＜ Q2): - 2% ≤ relative error ε ≤2%；
Middle zone (Q2 ≤ Q ＜ Q3): - 2% ≤ relative error ε ≤2% ；
High area (Q3 ≤ Q ＜ Q4): - 1% ≤ relative error ε ≤1% ；
Flow technical parameters
|
Nominal |
Pickup |
Minimum |
Boundary |
Common traffic |
Overload flow |
Accuracy |
|
(mm) |
Qst (L/h) |
Q1 (L/h) |
Q2 (L/h) |
Q3 (m3/h) |
Q4 (m3/h) |
|
|
15 |
4 |
12.5 |
20 |
2.5 |
3 |
2 |
|
20 |
4 |
20 |
32 |
4 |
5 |
|
|
25 |
6 |
39 |
62 |
6.3 |
7 |
|
|
32 |
8 |
62 |
99 |
10 |
12 |
|
|
40 |
10 |
80 |
128 |
16 |
19 |
Dimensions
|
Nominal diameter |
Long |
Wide |
High |
Nozzle thread d |
|
(mm) |
(mm) |
(mm) |
(mm) |
|
|
15 |
165 |
86 |
78 |
G1/2B |
|
20 |
195 |
90 |
80 |
G3/4B |
|
25 |
225 |
95 |
85 |
G1B |
|
32 |
230 |
100 |
90 |
G3/2B |
|
40 |
245 |
106 |
96 |
G2B |
Flow error curve
Pressure loss curve
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