Hebei Shanghong Meters Technology Co., Ltd. is one of the leading manufacturers and suppliers of wireless remote reading smart ultrasonic water meter dn 250 flanged water meter in China. If you're going to wholesale high quality wireless remote reading smart ultrasonic water meter dn 250 flanged water meter, welcome to get pricelist and quotation from our factory.
Product Description
The ultrasonic water meter is a metering instrument to continuously measure, record, and display the volume of water flowing through the sensor by use of the ultrasonic time difference method. Please read this manual carefully before use, to use it to the best advantage and avoid unnecessary loss.
technical parameter
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Nominal diameter(mm) |
50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||||||||||||||||||||||||
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Max flow Q4(m³/h) |
31.25 | 50 | 78.75 | 125 | 200 | 312.5 | 500 | 787.5 | 1250 | ||||||||||||||||||||||||
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Nominal flow Q3(m³/h) |
25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 | 1000 | ||||||||||||||||||||||||
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Transitional flow Q2(m³/h) |
0.16 | 0.256 | 0.4 | 0.64 | 1.024 | 1.6 | 2.56 | 4.03 | 6.4 | ||||||||||||||||||||||||
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Min flowQ1(m³/h) |
0.1 | 0.16 | 0.252 | 0.4 | 0.64 | 1 | 1.6 | 2.52 | 4 | ||||||||||||||||||||||||
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Start-up flow(m³/h) |
0.033 | 0.06 | 0.09 | 0.14 | 0.21 | 0.31 | 0.56 | 0.88 | 1.2 | ||||||||||||||||||||||||
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Max flow |
9999999.9 |
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Reverse flow |
9999999.9 |
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Measuring range |
Q3/Q1, R250(R400 customizable) |
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Accuracy class |
Class B |
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Pressure loss class |
≤0.063 MPa |
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Working pressure |
1.6 MPa |
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Temperature class |
T30 |
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Temperature range |
(5~55)℃ |
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Environment class |
Indoor, Class B |
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Electromagnetic class |
E1(Residential, Commercial, Industrial) |
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Power supply |
Built-in lithium battery DC 3.6V |
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Battery life |
＞ 10years |
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Installation position |
Any angle |
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Display |
LCD, 8 digits + additional characters |
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Flow profile sensitivity class |
U10/D5 |
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Communication interface |
RS485 Modbus/ Pulse output/GPRS/NB-IOT/Lorawan |
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Protection class |
IP68 |
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Tolerable storage temperature |
-20~60℃ |
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Static power |
10μA |
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Operating power consumption |
45μA |
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working principle
Ultrasonic water meter is a new type of water meter that can detect the time difference caused by the change of speed when the ultrasonic beam propagates in the water upstream and downstream, analyze and deal with the flow rate of water, and then calculate the flow rate of water further.
interface/communication
The ultrasonic water meter will have one of the many options output pre-selected when placing the order. This section will describe each output:
Modbus/RS485 output
Pulse output
Wireless output
Modbus/RS485 output
Pulse Output (Battery Powered)
Pulse output parameters:
Open-drain output
Voltage 3V～24V
Low-level single pulse
Pulse duration: 5ms
GPRS/NB-IOT wireless transmission
Data Collector
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Data name |
Parameter |
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Static power |
15uA |
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Power consumption |
60mA@RX |
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Control box |
Plastic |
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Online method |
Touch or automatically go online |
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Reporting interval |
How often to send data: once every three days or once a day (The higher the sending frequency, the shorter the battery life) |
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Sending bit |
0.1m³ |
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Power supply |
3.6VDC |
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Battery capacity |
8.5Ah |
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Uplink interface |
GPRS/NB-IOT |
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Downlink interface |
RS485 |
Data Transmission Unit
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Data name |
Parameter |
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Static power |
15uA |
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Power consumption |
60mA@RX |
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Control box |
Plastic |
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Online method |
Touch or automatically go online |
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Reporting interval |
How often to send data: 1～144 h can be set(Default once a day) Can be connected to the pressure collection device |
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Sending bit |
0.1m³ |
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Power supply |
3.6VDC |
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Battery capacity |
18Ah/36Ah |
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Uplink interface |
GPRS/NB-IOT |
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Downlink interface |
RS485 |
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