Hebei Shanghong Meters Technology Co., Ltd. is one of the leading manufacturers and suppliers of brass without impeller ultrasonic electromagnetic induction calculation water meter in China. If you're going to wholesale high quality brass without impeller ultrasonic electromagnetic induction calculation water meter, 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

Notices for Installation

Clean the pipes from dirt and foreign objects before installation;
Install valves and filters in front of the water meter;
To avoid damage, do not touch the electrical components or pull on the pipe during installation;
If the water meter is installed horizontally or at an angle, the ultrasonic flow sensor should be positioned horizontally in the pipe; if the meter is installed vertically, allow the water to flow from the bottom up;
When installing, make sure that the direction of the arrow on the pipe corresponds to the direction of water flow;
The connecting fittings must be installed correctly to ensure that incorrectly installed fittings do not obstruct the flow of water and do not affect the accuracy of the water meter;
Water meters shall not be installed where they are subject to strong mechanical vibrations:
1. switching valves and filters shall be installed upstream of the water meter; it is recommended that switching valves be installed downstream of the water meter for maintenance purposes. A check valve shall be installed upstream or downstream of the water meter to prevent backflow.

Before using this water meter, the pipe must be filled with water, otherwise, it will lead to inaccurate or even non-measurement;
When installing the water meter, should be reserved length of DN*10 in front of the water meter. Or should be reserved the length of DN*5 behind the water meter;
The water meter shall refresh the display every 4s, and read the water meter (including the starting value and end value) 4s at least after the valve is closed when testing the water meter, otherwise, the testing results may be affected;
Please make sure the medium flow is within the flow range of the water meter during test and use, otherwise, it may result in damage to the water meter;
In case of any malfunction (e.g. metering failed, etc.) during use, be sure to get in touch with the related management department immediately and do not repair it by yourself;
The product is designed with a disposable anti-disassembly seal which shall be removed only by appointed personnel, or otherwise, it shall be excluded from the free after-sales service.