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Ultrasonic flowmeter
Product features: 1. Wide range ratio (400:1) 2. Flow sensor fault reminder, undervoltage alarm, automatic data correction technology 3. High definiti
Product details
1ultrasonic flowmeteroverview
BRWMC typeultrasonic flowmeterIt is a new type of flowmeter based on the principle of ultrasonic time difference for flow measurement and display.
The instrument is equipped with M-BUS interface by default, which can form a remote meter reading management system through M-BUS bus and other communication devices. The management department can read the data in the meter at any time, facilitating the statistics and management of user water volume.
The product complies with the standard GB/T 778.3-2007 "Measurement of Water Flow in Closed Full Pipelines - Flow meters for Drinking Cold Water and Hot Water" and the calibration procedure JJG 1030-2007 "Ultrasonic Flow meters".
IIultrasonic flowmeterProduct Features
1. Wide range ratio (400:1)
2. Flow sensor fault alarm, undervoltage alarm, automatic data correction technology
3. High definition wide temperature LCD display
4. Built in lithium battery power supply ensures usage for (6+1) years or more
5. Equipped with photoelectric interface, supporting handheld infrared meter reading tools for on-site reading
6. Optional M-BUS, 485 or wireless communication interface
7. Wireless interface parameters:
1) Frequency 470MHz~480MHz
2) Spread spectrum modulation method
3) Transmission power<=50mW
4) Emission current<=120mA
5) Receiving current<=10mA
6) Receiving sensitivity<=-130dBm
8. Optional power supply methods:
1) Built in battery power supply
2) M-BUS power supply
3) External power supply, （DC 5～24V）
IIIultrasonic flowmeterTechnical Parameter
|
Accumulated volume resolution |
0.001cubic meter(When in use) 0.00001cubic meter(During verification) |
|
Current traffic resolution |
0.001m3/h(When used) 0.001m3/h(During verification) |
|
Quiescent current |
< 6uA |
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Battery life |
>(6+1) years |
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LCD display number of digits |
8position |
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Temperature rating |
T30 |
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pressure rating |
MAP10 |
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Pressure loss level |
△p25、△p40、△p63 |
|
Environmental Severity Level |
Blevel |
|
protection grade |
IP68 |
|
accuracy class |
2level |
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Electromagnetic environment level |
E1 |
|
Installation method |
Horizontal or vertical |
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Sensitivity level of upstream/downstream flow field |
U10/D5Or U5/D3 |
|
function |
Identification and alarm of pipeline dripping, bursting, and scaling |
|
reverse flow |
Measurable reverse flow |
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Range ratio |
DN15～DN40： Q3/Q1(125~400 optional) DN50～DN400： Q3/Q1(125~250 optional) |
|
Common traffic qp |
DN15: 2.5 m3/h DN20: 4.0 m3/h DN25: 6.3 m3/h DN32: 10 m3/h DN40: 16 m3/h DN50: 25 m3/h DN65: 40 m3/h DN80: 63 m3/h DN100:100 m3/h DN125:160 m3/h DN150:250 m3/h DN200:400 m3/h DN250:630 m3/h DN300:1000 m3/h DN350:1000 m3/h(Customizable) DN400:1600 m3/h |
4ultrasonic flowmeterInstallation size
|
Nominal diameter DN (mm) |
Body length L（mm） |
Body width W（mm） |
Body height H（mm） |
Connecting flange |
flange thickness C(mm) |
||
|
Outer diameter of flange D2 (mm) |
threaded hole Center diameter D1 (mm) |
connect bolt |
|||||
|
50 |
200 |
140 |
265 |
165 |
125 |
4*M16 |
18 |
|
65 |
200 |
155 |
285 |
185 |
145 |
4*M16 |
18 |
|
80 |
225 |
185 |
315 |
200 |
160 |
8*M16 |
20 |
|
100 |
250 |
200 |
325 |
220 |
180 |
8*M16 |
20 |
|
125 |
250 |
230 |
360 |
245 |
210 |
8*M16 |
22 |
|
150 |
300 |
270 |
395 |
280 |
240 |
8*M20 |
22 |
|
200 |
350 |
320 |
450 |
335 |
295 |
12*M20 |
24 |
|
250 |
450 |
405 |
555 |
405 |
355 |
12*M24 |
26 |
|
300 |
500 |
460 |
610 |
460 |
410 |
12*M24 |
28 |
|
350 |
550 |
520 |
670 |
520 |
470 |
16*M28 |
31 |
|
400 |
600 |
580 |
730 |
580 |
525 |
16*M28 |
34 |
5ultrasonic flowmeterinstallation diagram
VIultrasonic flowmeterWiring Instructions
● Power cord
External power supply mode, connect the red wire to the positive pole of the power supply and the blue wire to the negative pole of the power supply, with a voltage range of DC 5-24V;
● Communication line
M-BUS communication mode: Simply connect two communication lines to the MBUS bus without distinguishing between positive and negative poles;
RS485 communication mode: There are 4 wires on the meter, namely: A (yellow), B (green), power - (blue), power+(red), with a voltage of DC 5-24V, which should be connected properly（Pay attention to distinguishing polarity, incorrect connections may burn out）；
●Special attention:When the communication line (M-BUS or RS485) is temporarily not in use, please take appropriate protective measures,It is strictly prohibited to throw it into the water at willWater will seep into the instrument along the wire, causing a short circuit or failure.
Note: For more detailed information, please contact our online customer service for free.
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