- Product Details
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Quick Details
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Brand Name:
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MAINONE
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Model Number:
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DN15
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Q3/Q1:
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400;250
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Class of temperature:
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T30/T50/T90
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Accuracy:
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Class 2/B
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Protection class:
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IP65/IP67/IP68
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Power supply:
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3.6V Lithium
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Consumption:
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<0.2mW
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Maximum working pressure:
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1.0MPa/1.6MPa
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Display:
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LCD 8 digit prompt
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Communication mode:
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RS-485/M-BUS/Pulse/Lora/GPRS/GSM/NB-IoT
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OEM:
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Can provide customized or OEM
Quick Details
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Warranty:
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One year
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Type:
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Ultrasonic meters
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Place of Origin:
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Shanghai, China
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Brand Name:
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MAINONE
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Model Number:
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DN15
-
Q3/Q1:
-
400;250
-
Class of temperature:
-
T30/T50/T90
-
Accuracy:
-
Class 2/B
-
Protection class:
-
IP65/IP67/IP68
-
Power supply:
-
3.6V Lithium
-
Consumption:
-
<0.2mW
-
Maximum working pressure:
-
1.0MPa/1.6MPa
-
Display:
-
LCD 8 digit prompt
-
Communication mode:
-
RS-485/M-BUS/Pulse/Lora/GPRS/GSM/NB-IoT
-
OEM:
-
Can provide customized or OEM
Product Description
Smart ultrasonic water meter is developed based on the principle of ultrasonic transit-time measurement technology. In other words, by using a state-of-the-art signal processing to determine the travel time difference between the ultrasonic waves, which results in highly accurate velocity measurement. The instrument integrates measurement, calculation and display. It uses micro-power technology. A battery can be used for more than eight years and we use ER26500 default,if you have special requirement we can change it to ER34615. It can measure the minimum flow rate of 0.01 m³/h very accurately and according to the international standard OIML R49/MID. At the same time, the instrument has the characteristics of small size, high stability and strong anti-interference ability.
Ultrasound flow measurement technology is used to achieve multi-angle installation that doesn’t affect the meter accuracy, nor the system pressure loss.
Mainly used for household measurement of residential quarters.
Executive Standard
ISO4064: 2014/OIML: R49-2013
"GB/T778.1-2007 Measurement of water flow in closed full pipes Drinking cold water meters and hot water meters Part 1:
Specification"
"BT 778.2-2007 Measurement of water flow in closed full pipes Drinking cold water meters and hot water meters Part 2 Installation
requirements"
"GBT 778.3-2007 Measurement of water flow in closed full pipes Drinking cold water meters and hot water meters Part 3 Test methods
and test equipment"
"CJT 434-2013 Ultrasonic Water Meter"
"JJG 162-2009 Cold Water Meter Verification Regulations"
"GB/T778.1-2018: Measurement of water flow in closed full pipes, drinking water and hot water meters. Part 1: Specification"
"GB/T778.2-2018: Closed-type full-pipe water flow measurement, test methods and equipment for drinking water cold water meters and
hot water meters. Part 2. "
The factory verification is based on the standard of the People's Republic of China National Metrology Verification Regulation
"JJG162-2009 Cold Water Metrology Verification Regulation".
"GB/T778.1-2007 Measurement of water flow in closed full pipes Drinking cold water meters and hot water meters Part 1:
Specification"
"BT 778.2-2007 Measurement of water flow in closed full pipes Drinking cold water meters and hot water meters Part 2 Installation
requirements"
"GBT 778.3-2007 Measurement of water flow in closed full pipes Drinking cold water meters and hot water meters Part 3 Test methods
and test equipment"
"CJT 434-2013 Ultrasonic Water Meter"
"JJG 162-2009 Cold Water Meter Verification Regulations"
"GB/T778.1-2018: Measurement of water flow in closed full pipes, drinking water and hot water meters. Part 1: Specification"
"GB/T778.2-2018: Closed-type full-pipe water flow measurement, test methods and equipment for drinking water cold water meters and
hot water meters. Part 2. "
The factory verification is based on the standard of the People's Republic of China National Metrology Verification Regulation
"JJG162-2009 Cold Water Metrology Verification Regulation".
Specification
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Range & Capacity- R250
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DN15
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DN20
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DN25
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DN32
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DN40
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||||
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Q3(Qmax/permanent)
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2.500m3 /h
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4.000m3 /h
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6.300m3 /h
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10.00m3 /h
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16.00m3 /h
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Q4(Qoverload)
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3.125m3 /h
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5.000m3 /h
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7.875m3 /h
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12.50m3 /h
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20.00m3 /h
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||||
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Q2(Qtransitional)
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0.016m3 /h
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0.025m3 /h
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0.040m3 /h
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0.016m3 /h
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0.016m3 /h
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||||
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Q1(Qmin)
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0.010m3 /h
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0.016m3 /h
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0.025m3 /h
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0.010m3 /h
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0.010m3 /h
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||||
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Start Flow rate
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0.002m3 /h
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0.002m3 /h
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0.003m3 /h
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0.005m3 /h
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0.005m3 /h
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Dynamic Range
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R250
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Range & Capacity- R400
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DN15
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DN20
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DN25
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DN32
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DN40
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||||
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Q3(Qmax/permanent)
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2.500m3 /h
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4.000m3 /h
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6.300m3 /h
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10.00m3 /h
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16.00m3 /h
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||||
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Q4(Qoverload)
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3.125m3 /h
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5.000m3 /h
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7.875m3 /h
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12.50m3 /h
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20.00m3 /h
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||||
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Q2(Qtransitional)
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0.010m3 /h
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0.016m3 /h
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0.025m3 /h
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0.040m3 /h
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0.064m3 /h
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||||
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Q1(Qmin)
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0.006m3 /h
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0.010m3 /h
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0.016m3 /h
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0.025m3 /h
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0.040m3 /h
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Start Flow rate
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0.002m3 /h
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0.002m3 /h
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0.003m3 /h
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0.005m3 /h
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0.005m3 /h
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||||
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Dynamic Range
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R400
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Standard
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ISO4064: 2014 / OIML: R49-2013
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Measured medium
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Water, homogeneous liquid, and filled with measured pipes.
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Battery
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3.6V, Li-battery ER26500(Default)/ER34615
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Battery Life
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≥8 Years
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Consumption
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＜0.2mW
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Pressure loss
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DN15-DN20: Δ p40 DN25-DN40： Δ p63
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EMC
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E1
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Environmental Classification
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Class B
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Protection Class
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IP67/IP68
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Medium Temperature
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T30/T50
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Storage Temperature
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-25~55℃
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MAP
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PN16
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Accuracy
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±5% in range Q1≤Q＜Q2
±2% in range Q2≤Q≤Q4
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Head Loss
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0.4bar@Q3
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Sensitivity of upstream flowfield
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U10
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Sensitivity of downstream flow
field |
D5
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Climatic and
mechanicalenvironmentalgrades |
B
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Key-press
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Magnetic induction key
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Display
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LCD 8 digit + prompt
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Menu Contents
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Instantaneous flow (m3/h), cumulative flow (m3), screen detection, table
address, cumulative working time (h), date (year/month/day), caliber, software version |
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Display range
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Total flow：0m³～＋9999.9999m³
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Communication (can be customized)
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LoRa RF
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470MHz/868MHz/915MHz
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LoRaWan
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470MHz/868MHz/915MHz
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M-Bus
|
EN1434/CJ188
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RS485
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EN1434/CJ188
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Pulse Output
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Customized
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NB-IOT
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Customized
|
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Installation Precautions
1. Installation and Connection Requirements:
Installation should be strictly in accordance to the site professional engineering design, and alteration without engineers permission should be strictly prohibited.
2. Instrument Installation Position:
Installed in vertical pipeline for upward (or oblique upward) flow of liquid, followed by horizontal pipeline, try to avoid downward flow of liquid. (or oblique downward) flowing pipes to prevent liquid from running with the gravity and create air pockets Installation position should not be selected at the highest point of pipeline direction to prevent abnormal measurement due to bubble accumulation in pipeline.
3. Installation method Cut off the installation instrument of the water supply pipeline and set aside the
location of the installation instrument as shown in the figure Concentric alignment of instrument,
Pipeline and tightening of pipeline blade and instrument thread with the appropriate wrench Instrument installation completed
Troubleshooting
a )The water meter shown as :
It means that the battery is not enough, and the battery should be replaced assoon as possible
b) The water meter is reading negative:
Check whether the flow direction is reversed. If not, please contact usimmediately
c) Abnormal or random beating of cold-water meter data:
Installation position is incorrect and installed at lower water level
The front and rear straight section is too short, the bend is too big, and thediameter of the pipe before the table is large.
d) Water meter has flow and no temperature:
Please do not dismantle it manually and contact us immediately
location of the installation instrument as shown in the figure Concentric alignment of instrument,
Pipeline and tightening of pipeline blade and instrument thread with the appropriate wrench Instrument installation completed
Troubleshooting
a )The water meter shown as :
It means that the battery is not enough, and the battery should be replaced assoon as possible
b) The water meter is reading negative:
Check whether the flow direction is reversed. If not, please contact usimmediately
c) Abnormal or random beating of cold-water meter data:
Installation position is incorrect and installed at lower water level
The front and rear straight section is too short, the bend is too big, and thediameter of the pipe before the table is large.
d) Water meter has flow and no temperature:
Please do not dismantle it manually and contact us immediately
Packaging & Shipping
Transportation and storage
1. The water meter should be stored in the original package, the ambient temperature is 5-40℃, and the air is free of corrosive gases
2. when the water meter is stored on the shelf, the stacking height of the boxes should not be more than 5 boxes
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