LXSL-LTF  Wireless LoRa intelligent remote transmission cold water meter (non valve controlled)

Intelligent remote wireless cold water meter LXSL-15LTF/20LTF/25LTF This water meter has significant advantages such as high measurement accuracy, good stability, and high reliability with remote communication meter reading function. It can provide advanced and reliable measuring tools for the hydraulic department. Its performance indicators comply with the technical requirements for water meters in GB/T 778.1-2018 "Drinking Cold Water and Hot Water Meters - Part 1: Measurement Requirements and Technical Requirements" and GB/T 778.2-2018 "Drinking Cold Water and Hot Water Meters - Part 2: Test Methods". The communication protocol complies with CJ/T188-2018 "Technical Conditions for Data Transmission of Household Measuring Instruments"

1         Function feature

Measurement function

1) With the function of measuring cumulative flow

2 ) Record the cumulative flow of current and historical 12 month settlement days

Freeze data

1 ) The water meter has timed freezing data, which can achieve 12 monthly freezes

2 ) The water meter has timed freezing data, which can achieve 31 day freezing (optional function)

Regular reporting

1 ) It has the ability to report daily data and discretize the reporting time according to a certain discrete algorithm to avoid network congestion caused by centralized reporting of wireless water meters

Data supplementary reporting

1 ) If the data report is unsuccessful, the water meter will make a supplementary report once to improve the success rate

Press the button to report

1 ) The water meter has a button reporting function, with a maximum of 3 times a day

Equipped with register display function

1 ) Can display the current cumulative flow

Communication function

1) Equipped with wireless LoRa communication, one gateway is installed to drive 60 water meters, and information collection is connected to the data center server through downlink LoRa wireless communication and uplink 4G communication

Output function(Optional)

1) Calibration pulse output function for water meter error calibration

2 ) Equipped with magnetic attack detection, battery undervoltage alarm, and fault information prompt functions

Remote function of management system

Administrators can remotely log in to the computer management system to recharge users, or allow users to use their own mobile phone WeChat to recharge remotely. Users can see their meter usage, meter information, and recharge details on their mobile phones. The management system can export data bills, making it convenient to charge detailed bills .

Non valve controlled functions

1 ) The water meter has a remote intelligent valve control switch function inside, which is a remote prepaid meter

2 ) The water meter does not have a remote intelligent valve control switch function inside, which is also known as a post payment meter

Operation process of WeChat remote recharge system

1 ) Remote recharge administrator's mobile WeChat operation

2 ) Remote recharge user's mobile WeChat operation

3 ) Software settings and account opening process for computer administrators

l Specification and type

Diameter (mm)	Corresponding type	Commonly flow
DN 15	LTSL-15LTF	2.5	≥ 100	1.25	1.6
DN20	LTSL-20LTF	4	≥ 100	1.25	1.6
DN25	LTSL-25LTF	6.3	≥ 80	1.25	1.6

l Accuracy class: Class: 2

l Pressure ≥1.0MPa

l Waterproof grade: IP68

l Weight: About: 1.0kg

l Creeping: With anti creeping logic design