Hebei Shanghong Meters Technology Co., Ltd. is one of the leading manufacturers and suppliers of dn15-dn40 ultrasonic water meter with modbus comunnication in China. If you're going to wholesale high quality dn15-dn40 ultrasonic water meter with modbus comunnication, welcome to get pricelist and quotation from our factory.

Product Description

No Moving Parts, high accuracy for years long. No moving components in the flow sensor, avoid long-term abrasion of mechanical parts which may result in inaccurate measurement and failure of the meter. Such design is also resistant to impurities, therefore no inspections and maintenance are cost-free.

product-790-380

Product Features

A low starting speed (5L/h), allows accurate measurement;
The flow rate is low at 12.5L/h;
Dynamic range (Q3/Q1) reaches 200:1;
No mechanical moving parts, no wear and tear, long service life;
Low-pressure loss;
Measurable flow rate;
High measurement frequency;
Infrared photoelectric reading interface;
Capacitive touch;
Battery ER26500 8500mAh;
Material: 58 copper, ABS resin;
Can be installed in any location;
Sounds like an alarm when air enters;
Supports RS485 Modbus/LoRa/LoRaWAN/NB-IOT, suitable for outdoor installation;
IP68 protection level;
Data will not be lost even if the power is turned off. Data is stored for over 10 years, with 23 months of historical data automatically saved;
Technical data complies with international standard ISO4064;
Acquired ISO9001 certification;
Warranty period: 2 years.

Technical Parameter

Nominal diameter (mm)	15	20	25	32	40
Overload flow Q4 (m/h)	3.125	5	7.875	12.5	20
Permanent flow Q3 (m3/h)	2.5	4	6.3	10	16
Transitional flow Q2 (m3/h)	0.02	0.032	0.05	0.08	0.128
Minimum flow Q1 (m3/h)	0.0125	0.02	0.0315	0.05	0.08
Start-up flow (m3/h)	0.005	0.005	0.008	0.01	0.015
Max flow	999999.999
Measuring range	Q3/Q1, R200/(R250 customizable)
Accuracy class	Class 2
Pressure loss class	≤0.04 MPa
Working pressure	1.6 MPa
Temperature class	T30/T50
Temperature range	(5~55)℃
Storage temperature	-20~60℃
Environment class	Class B
Electromagnetic class	E1
Power supply	Built-in lithium battery DC 3.6V
Battery life	8-10 years
Battery capacity	8500mAh
Power consumption	10μA
Installation position	Any angle
Display	LCD, 8 digits additional characters
Installation pitch	U10/D5
Communication Interface	RS485 modbus/ LoRa/LoRaWAN/NB-IOT
Protection class	IP68

Notices for Installation

Please flush the pipes before installation to prevent foreign matter such as gravel from entering;
Install valves and filters in front of the water meter;
Do not touch electrical components or pull wires during installation to avoid damage;
If the water meter is installed horizontally or tilted, please install the ultrasonic flow probe horizontally on the pipe. If it is installed vertically, please ensure that the water flow is from bottom to top;
When installing, please note that the direction of the pipe arrow must be consistent with the direction of water flow;
The joint gasket must be installed correctly to avoid misalignment and water blockage, which will affect the accuracy of the water meter;
Do not install the water meter in a place where it may be affected by strong mechanical vibration. Special Note:

1. It is recommended to install an on-off valve and filter in front of the water meter and install an on-off valve after the water meter during maintenance. Check valves must be installed before and after the water meter to prevent backflow.

Before using this water meter, the pipe needs to be filled with water. Failure to do so may result in inaccurate or impossible measurements;
When installing the water meter, a length of DN*10 must be reserved in front of the water meter. Or you need to ensure the length of DN*5 behind the water meter;
The water meter updates the display and reads the water meter value (including the starting value and ending value) every 4 seconds;
When testing the water meter, wait at least 4 seconds after closing the valve. Otherwise, the test results may be affected;
When testing and using, please ensure that the flow rate of the medium is within the flow range of the water meter. Otherwise, the water meter may be damaged;
If a malfunction occurs during use (such as incorrect measurement), please contact the relevant management department immediately and do not repair it yourself;
This product has a disposable anti-decomposition sticker affixed to it, which can only be removed by designated personnel. Otherwise, you will not be able to enjoy free after-sales service.