Remote wired valve controlled water meter is a self-developed remote wired valve controlled water meter that is convenient for remote meter reading and control, designed to meet the actual needs of daily water use. It adoptsM-busCommunication interface enables remote direct reading of water meter usage, effectively avoiding management departments from exceeding the meter limit during on-site visits. Facilitating the management department to control the water usage of remote wired valve controlled water meters, making remote meter reading and control faster, more reliable, and effectively improving productivity while saving manpower, material resources, and financial resources.

This remote wired valve controlled water meter complies with the measurement of water flow in closed pipelines Drinking Cold and Hot Water MetersGB/T778---2007Safety Rules for Drinking Water Cold Water MeterCJ266---2008Verification Regulations for Cold Water MetersJJG1162---2009Residential Remote Meter Reading SystemJG/T162---2009Technical Conditions for Data Transmission of Household Measuring InstrumentsCJ/T188---2004Electronic Direct Reading Water MeterCJ/T383---2011Electronic Remote Transmission Water MeterCJ/T224---2012Or "Multi functional Energy Meter Communication Protocol"DL/T645---1997The communication protocol can also be customized according to customer requirements.

2Product Features

-The microcontroller adopts a high reliability design and runs stably.

-Unique anti bubble technology, high success rate of data reading.

-Not susceptible to external strong magnetic attacks, with extremely strong anti-interference performance.

-Fully sealed design, good waterproof performance.

-Daily work does not require power supply and has a long service life.

-The remote water meter adopts absolute coding method andM-BUSCommunication method, stable signal transmission, no need for external power supply. The current required for reading is directly fromM-BUSBus provided, fast meter reading method, more accurate and reliable data.

-Remote transmission and control of water meters can be achieved through system software with prepayment function/Valve closing operation.

3Main functions of the product

3.1Measurement function

The water meter can measure unidirectional, non pulse water flow.

3.2Functions of the centralized copying management system

Can be usedPCMachine throughRS232The communication method is used to set the meter number, read and write usage, and baud rate for the water meter2400bps.

3.3Anti destructive self-protection function

When the water meter encounters magnetic interference, it automatically closes the valve. At the same time, the water meter records magnetic interference information. When the magnetic interference disappears, the valve automatically opens and updates the magnetic interference information.

3.4Battery undervoltage reminder function

The water meter supports two levels of bottom voltage alarm. When the first level voltage is reached, the user is reminded to contact the management department to replace the battery. It can continue to be used for three days, and the valve will lock after three days. Real time storage of data in the table, battery replacement will not damage the data in the table.

3.5Water usage display

Without changing the mechanical measurement display part, the error rate reading between the electronic and mechanical parts is less than one ten thousandth. The electronic part does not hinder the reading of the mechanical device and does not affect the calibration of the water meter.

3.6utilizeGSMNetwork, wide coverage

Using mobile networks, wirelesslyGSM/GPRSWithin the coverage area of the network,GPRSIn areas with poor signal, there are mobile signal amplification devices that can solve the problem of poor signal and achieve monitoring.

Easy to install, similar to the installation method of ordinary base meters, without changing the existing installation habits of water meters.

3.7Free definition of data transmission frequency and time

Meter reading does not require household registration, and remote meter reading can be achieved by customizing the upload time of data, several times a month, and at any time each time can be freely defined. The work cycle can be set, supporting intervals of hours, days, months, etcIDProactively report instrument information with staggered tail numbers.

3.8The water meter clock requires automatic calibration of the motherboard clock to maintain synchronization with the server.

3.9Equipped with a check valve function, it effectively prevents water meter rotation problems caused by unstable water pressure, airbags, and other reasons

4Product Technical Specifications

4.1Electrical parameters

4.1.1Working power supplyDC36V（MBUSInterface)

4.1.2Working environment: Temperature0.1From ℃ to+45℃ (cold water)0.1℃ to90℃ (hot water) humidity:0to95%RH

4.1.3Communication interface method with the upper computer:MBUSBus interface

4.1.4communication2400bps

4.1.5Protection against bus open circuit, short circuit, idle and other faults

4.1.6Maximum distance from table to data collector: ≤500m

4.1.7Communication protocol:CJ/T188---2004agreement

4.1.8The normal load water meter of the collector is256Block water meter

4.1.9The collector adoptsGPRSMobile network signal transmission is stable and fast, without the need for concentrators.

4.1.10The water meter can be used1.8MPabear20minWater pressure strength, no leakage or damage

4.1.10.1Remote wired valve controlled water meter (base case made of copper, copper content ≥)59%Lead content0.004mg/LThe watch case has undergone rust prevention treatment and meets the specificationsCMA/WM778Technical Specification for Small Diameter Drinking Water Cooled Water Meter Case, with a cast lead brass cover,The water meter glass is tempered glass, and the production glass meets the requirementsJB/T8480Standard: The connecting nut is made of cast lead brass and meets the requirementsGB/T1176standard

4.1.11Power Supply

Adopting replaceable built-in lithium batteries,3.6Vcapacity6AHFor the market's universal battery size and appearance, communicate daily1Can persist for the next time6Years and above

4.2Main technical indicators

Maximum allowable error:

---The maximum allowable error in the low zone from including the minimum flow to excluding the boundary flow is ±5%

---The maximum allowable error of the cold water meter in the high zone, including the decomposition flow rate and the maximum flow rate, is ±2%The hot water meter is ±3%.

4.3Main dimensional parameters

5Storage and transportation precautions

5.1Stored Environment

5.1.1The transportation, packaging, and storage of water meters comply withZBY002-81andGB/T15464-1995General Technical Conditions for Packaging of Instruments and Meters

5.1.2The water meter should be stored in its original packaging in a clean environment with an ambient temperature of26℃ to35℃, relative humidity not exceeding85%There are no corrosive gases or fungi in the air.

5.2Transportation requirements

5.2.1During transportation, there should be no severe vibration or impact in the packaging environment.

5.2.2The stacking of outer boxes shall not exceed5layer

6Precautions for unboxing inspection

6.1Do not use the water meter and contact the supplier as soon as possible if there are obvious signs of damage to the outer shell caused by severe impact or falling from a high altitude during unpacking.

6.2After the water meter is opened, if it is not installed and used in a short period of time, it should be packaged and placed back in the original packaging box for storage. If it is in rainy season, moisture-proof measures should be taken in a timely manner.

7Installation and usage precautions

7.1install

7.1.1Before installing the remote wired valve controlled water meter, it is necessary to first read and record the meter address to ensure that the electronic code inside the meter is consistent with the dial serial number.

7.1.2The installation of remote wired valve controlled water meters must comply withGB/T778.2Installation requirements.

7.1.3The diameter of the remote wired valve controlled water meter should be determined based on the diameter of the installation pipeline and the commonly used flow rate that is less than or close to the commonly used flow rate of the remote wired valve controlled water meter. The installation location should avoid exposure to sunlight, flooding, freezing, and pollution, and should be easy to disassemble and read.

7.1.4The remote wired valve controlled water meter must be installed horizontally, with the water flow direction consistent with the direction indicated by the arrow and ensuring that the reading dial of the meter head is facing upwards.

7.1.5Before installing a remote wired valve controlled water meter, the sand, gravel, hemp fibers, and other debris in the pipeline should be removed first to avoid causing water meter malfunctions.

7.1.6If the water meter is installed at the inlet of the boiler, it is necessary to prevent the backflow of hot water and steam from the boiler from damaging the internal components of the water meter. It is best to install a check valve at the outlet of the water meter.

7.1.7Insert the meter connector into the connector nut and install it onto the pipeline. Then twist the connector nut to install the remote wired valve controlled water meter onto the pipeline, keeping the reading dial of the remote wired valve controlled water meter horizontal and upward. When connecting the water meter to the pipeline, excessive bending force should be avoided to avoid damaging the interface of the remote wired valve controlled water meter and breaking it.

7.2instructions

7.2.1Water meter measurement and monitoring data: displayed and used through mechanical accumulationMBUSBus transfers data to remote computers.

7.2.2MBUSBus Communication Function Description:Water meter transmission rate:2400bps

7.3Precautions for use

7.3.1Regularly check the operation of the remote wired valve controlled water meter and pay attention to antifreeze in winter.

7.3.2The installation location should avoid exposure to sunlight, freezing, pollution, moisture, and flooding, in order to facilitate disassembly and meter reading. During periods of freezing, in addition to wrapping the water meter and water pipe, there is no need to close the inlet valve of the water meter, and open the outlet valve and faucet to prevent the meter from expanding and being damaged due to freezing. It is recommended to install it in a dedicated water meter box.

7.3.3If the remote wired valve controlled water meter appearsMBUSWhen the remote meter reading data does not match the character wheel or when the remote transmission system malfunctions, the character wheel reading on the meter dial shall prevail.