Hebei Shanghong Meters Technology Co., Ltd. is one of the leading manufacturers and suppliers of dn25 wireless digital smart ultrasonic water meters in China. If you're going to wholesale high quality dn25 wireless digital smart ultrasonic water meters, welcome to get pricelist and quotation from our factory.

Product Description

product-790-380

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.

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

Product Features

Low initial velocity (5L/h) for precise measurements;
Flow rate as low as 12.5 L/h;
The dynamic range (Q3/Q1) reaches 200:1;
There are no mechanically moving parts, no wear, and a long service life;
small pressure loss;
measurable flow;
High measurement frequency;
Infrared photoelectric reading interface;
electrostatic sensing touch;
Battery ER26500 8500mAh;
Material: Copper 58, ABS plastic;
It can be installed at any installation location;
Alarm when there is air;
Supports RS485 Modbus/LoRa/LoRaWAN/NB-IOT, suitable for outdoor installation;
Protection level IP68;
Data is not lost even if the power is cut off. Data is stored for more than 10 years and 23 months of historical data are automatically saved;
The technical data complies with the international standard ISO 4064;
ISO9001 Certification;
Warranty period: 2 years.

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.

product-790-258