Ultrasonic Heat Meter DN50-DN300
This meter is specially designed for building heating pipelines. It adopts ultrasonic flow measurement technology and can be installed at multiple angles, which is not easy to be damaged and has a long service life because of no mechanical rotating parts.
This meter is specially designed for building heating pipelines. It adopts ultrasonic flow measurement technology and can be installed at multiple angles, which is not easy to be damaged and has a long service life because of no mechanical rotating parts. It is suitable for heat metering of public buildings, heat exchange stations, centralized heating (cooling) systems, and total metering of various heat distribution methods, which meets the demand of heating enterprises for big data services.
Accurate metering: pipe section with through diameter design, no flow blocking parts, low startup flow rate, high accuracy grade
Long life span: adopt micro-power technology and can be reliably used for more than 10 years
Reliable communication: support NB-IoT, RS-485, M-Bus communication interface, which can realize remote meter reading
Ultra-protection: its IP68 protection design effectively prevents the influence of hot steam and condensate on the instrument, and can be operated for a long time even being immersed in water
Low carbon and environmental protection: environmental protection seamless stainless steel pipe, no casting, no pollution
a. Communication mode: NB-IoT, RS-485, M-BUS optional; infrared as the second communication interface
b. Data upload function: data uploading at regular intervals: settable between days, weeks, months and specified dates
c. Historical data storage: it can support daily and monthly storage of heat and accumulated flow data at the same time
d. Alarm function: temperature sensor failure, low battery, empty pipe bubble and other kinds of anomaly alarms
e. Remote upgrade: with wireless, infrared remote upgrade function
f. Power supply: power supply by DC3.6V lithium battery; DC10V~DC36V (proposed when ordering); AC220V±10%, 50Hz (an optional power adapter is required, proposed when ordering)
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TECHNICAL PARAMETERS |
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Parameter class |
Parameter item |
Nominal diameter (mm) |
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DN50-DN300 |
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Flow range (Q3/Q1) |
R400(R500/R630 optional) |
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Flow parameters |
Measurement class |
Class II |
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Flow profile sensitivity grade |
U5D3 |
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Pressure parameters |
Maximum working pressure (MPa) |
1.6 (1.0/2.5 customizable) |
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Pressure loss (kPa) |
≤10 |
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Display digits |
10 |
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LCD display |
Cumulative flow display range (m3) |
-9,999,999.9 ~ 9,999,999.9 |
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Instantaneous flow display range (m3/h) |
-99,999.999 ~ 99,999.999 |
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Complete machine protection |
Protection class |
IP68 |
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Environmental installation |
Temperature grade |
T30/T50 |
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Temperature grade |
Class 0 |
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Electromagnetic environment |
Electromagnetic environment class |
Class E2 |
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FLOW PARAMETERS (R400) |
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Nominal bore |
Startup flow |
Minimal flow rate Q1 |
Transitional flow rate Q2 |
Common flow rate Q3 |
Overload flow rate Q4 |
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(m3/h) |
(m3/h) |
(m3/h) |
(m3/h) |
(m3/h) |
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DN50 |
0.009 |
0.0625 |
0.1 |
25 |
32.15 |
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DN65 |
0.014 |
0.1 |
0.16 |
40 |
50 |
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DN80 |
0.024 |
0.15 |
0.25 |
63 |
78.75 |
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DN100 |
0.036 |
0.25 |
0.4 |
100 |
125 |
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DN125 |
0.057 |
0.4 |
0.64 |
160 |
200 |
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DN150 |
0.088 |
0.625 |
1 |
250 |
312.5 |
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DN200 |
0.127 |
1 |
1.6 |
400 |
500 |
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DN250 |
0.227 |
1.575 |
2.52 |
630 |
787.5 |
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DN300 |
0.353 |
2.5 |
4 |
1,000 |
1,250 |
Note: The maximum reading of cumulative flow is 99,999,999.9 m3, and the minimum reading is 0.1 m3. The maximum reading of heat capacity is 9,999,999.99 MW·h and the minimum reading is 0.01 MW·h.
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Ultrasonic Heat Meter DN50-DN300 |
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DIMENSIONS |
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Nominal bore |
Outer diameter D |
Flange D1 |
Sealing face D2 |
Length L |
Height H |
Sealing face f |
Flange thickness b |
Flange hole specification |
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DN50 |
165 |
125 |
99 |
200 |
357 |
3 |
20 |
4xφ18 |
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DN55 |
185 |
145 |
118 |
200 |
372 |
3 |
20 |
4xφ18 |
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DN80 |
200 |
160 |
132 |
225 |
387 |
3 |
20 |
8xφ18 |
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DN100 |
220 |
180 |
156 |
250 |
410 |
3 |
22 |
8xφ18 |
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DN125 |
250 |
210 |
184 |
250 |
440 |
3 |
22 |
8xφ18 |
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DN150 |
285 |
240 |
211 |
300 |
472 |
3 |
24 |
8xφ23 |
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DN200 |
340 |
295 |
266 |
350 |
528 |
3 |
24 |
12xφ23 |
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DN250 |
405 |
355 |
320 |
400 |
622 |
3 |
26 |
12xφ26 |
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DN300 |
460 |
410 |
378 |
450 |
675 |
4 |
28 |
12xφ26 |
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Unit: mm |
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