Economical Nb Iot Lorawan Ultrasonic Water Meter Prepaid Card Water Meter Mechanical Water Meter Flowmeter Water Flow Meter

Product Description

Company profile China J-L smart meter Co., Ltd. was founded in 2008 and is located in Zhangjiakou City, Hebei Province, China. The factory was covering 20 acres, an area of 20,000 square meters. Our company is a high-tech enterprise integrating R&D, production, sales, and after-sales. The main products are water meters, electric meters, gas meters, heat meters, and other metering instruments, as well as NB-IoT/Wireless remote transmission modules. In addition, we can also provide customers with overall renovation plans and suggestions for instrument projects. The company has successively passed the EU market CE product certification, FC certification, ISO9001:2015 quality system certification, ISO14001:2015 environmental management system certification, ISO45001:2018 occupational health and safety management system certification, computer software copyright registration certificate, and multiple patents Certificate, and high-tech enterprise certificate, and won the title of well-known enterprise in Zhangjiakou. The company has offices and subsidiaries in important cities such as Beijing, Tianjin, Xi'an, and Hangzhou. We have 25 R&D personnel, more than 200 employees, and an annual output of 1.5 million sets of various meters. Our company's aim is to put product quality and service first and provide each partner with competitive products and services for long-term win-win results.
https://jlmeter.en.made-in-china.com/product/xwdaTJCKrehj/China-Household-Residential-Ultrasonic-Water-Meter.html
https://jlmeter.en.made-in-china.com/product/hZitvdlulDYN/China-IC-Card-Residential-Prepaid-Muti-Jet-Mechanical-Water-Meter.html
https://jlmeter.en.made-in-china.com/product/ndQazYgGTiRM/China-Wire-Communication-Photoelectric-Water-Meter-for-Water-Supply-Pipe-Network.html Products Features
The features of this series of SMART water meters are summarized as follows:
1. Unlimited installation Angle;
2. Wide range ratio(R160/R200/R250/R400), High accuracy level, good stability;
3. Multi-transmission methods: Photoelectric,RS-485,M-Bus,LoRa,NB-IoT,etc.
4.No mechanical transmission parts,wear-free.
5.Low startup flow rate(Startup flow rate can reach 0.0015m³/h).
6. With water temperature measurement function.
7. The whole water meter is designed with IP68, which can work underwater for a long time.
8. Micro-power technology, battery power (measurement cycle 1s, battery theoretical work more than a decade).
9. Highly intelligent self-checking capability, monitoring common problems such as empty pipes, air bubbles, transducer aging, battery Undervoltage, abnormal water temperature (too high or too low), abnormal water volume (leaking or running water), and other problems (above functions are Optional), can adopt NB-IoT technology, and push information to users at the first time.
Technical Parameters

Item	Unit	Parameter
Nominal diameter	mm	15	20	25	32	40
Overload Q4	m³/h	3.125	5	7.875	12.5	20
Permanent flowQ3	m³/h	2.5	4.0	6.3	10	16
Range ratioQ3/Q1		R=200/R250/R400(The standard R is R160 ), also can be customized.
Transitional flow-rateQ2	m³/h	0.02	0.032	0.05	0.08	0.128
Min flowQ1	m³/h	0.0125	0.02	0.0315	0.05	0.08
Accuracy		Class 2
Temperature class		T30/T90
Nominal pressure		1.0MPa(Default ),1.6MPa,2.5MPa(Customized )
Pressure loss class		p63
Flow profile sensitivity level		U10/D5
Climatic and mechanical environmental level		Class B
Installation method		Horizontal installation or vertical installation (underwater inlet)
Battery		34615 battery (default )/26500battery

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