Hebei Shanghong Meters Technology Co., Ltd. is one of the leading manufacturers and suppliers of dn25 high precision digital ultrasonic water meters r250 in China. If you're going to wholesale high quality dn25 high precision digital ultrasonic water meters r250, 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 inaccuracy measurement and failure of the meter. Such design is also resistant to impurities, therefore no inspections and maintenance are cost-free.

Product Features

Low starting rate (5L/h), able to accurately measure;
Flow rate as low as 12.5L/h;
Dynamic range (Q3/Q1) achieved 200:1;
No mechanical moving parts, no abrades, and has a long serving lifetime;
Small pressure loss;
Can measure the flow rate;
High measurement frequency;
Infrared photoelectric reading interface;
Capacitive sensing touch;
Battery ER26500 8500mAh;
Material: 58 copper, ABS plastic;
Mounting in any installation position;
Alarm when there is air;
Support RS485 modbus/ LoRa/LoRaWAN/NB-IOT; suitable for outdoor installation;
IP68 protection level;
Data is not lost in the event of power failure. Data can be saved for more than 10 years and 23 months of historical data can be automatically saved;
Technical data conform to international standard ISO 4064;
ISO9001 certification;
Warranty:2 years;
Not affected by impurities, chemicals, and magnetic materials in the medium;
There are no moving parts in the measuring mechanism, it is free of wear and tear, and accuracy does not degrade over the life of the meter.

Outline Dimension Drawing

product-1-1

Nominal Diameter	Length L	Length L1	Width B	High H	Connecting Thread
mm					d	D
15	165	260	95	86	R	G/B
20	195	300	95	86	R	G/B
25	225	346	95	89	R	G/B
32	180	305	95	100	R1	G1/B
40	200	330	95	120	R1	G1/B

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