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Longreen Technology Development Limited

China Manufacturer with main products: Smart Water Meter, Intelligence Gas Meter, Water Source Management System, Normal Meter and Accessories, Wireless Module, Ultrasonic Meter

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LGL(R)B Series Prepayment water meter


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Specifications

Profile
LGL(R)B Series Prepayment water meter is a kind of water meter that must pay water before use, it integrated prepayment and valve control function, and displays water consumption and remnant by LCD, completely conforms with ISO4064.
 
Features
l         Prepayment mode or after payment mode
l         Replaceable lithium battery mechanism
l         Both LCD and register display
l         Low consumption pilot valve
l         Anti-tamper and anti-vibration
l         IP68, waterproof design
l         Optional IC and CPU card
 
Functions
Items
Functions and Technical Requirements
Basic Functions 
Display
Functions 
Functional Display 
Limited current input, current input, remaining water volume, cumulative water volume, payment, on/off valve, wrong card, battery replacement and attack signal 
Data
Display 
Maximum cumulative water volume:  9999.9m3. 
Control Functions 
Water Consumption  Control 
Close valve reminder when the remaining water volume reaches alarming water level; open valve with cards and valve will close automatically when water is all used up; user can use card to purchase water, open valve and control water supply.
Low voltage 
Close valve reminder when battery voltage is lower than the pre-set value; users can open valve with card. The valve will be completely closed if the battery is not replaced within 24 hours.
Self-checking function 
When power on, check the circuit automatically to judge if meter is in normal status or not.
Anti-theft and anti-shear
Valve closes automatically and attack signal displayed when the signal-sampling wire is cut.  It can only be repaired by administrator not the user. 
Moisture-proof
Socket 
Moisture of socket does not affect meter reading.  It will constantly detect if the IC card slot is normal or not.
Self- protection of
battery & valve 
Meter opens and closes valve automatically once a month.
Input volume limitation 
The meter sets the highest water storage volume.  When the sum of purchased water volume & the remaining water volume is larger than the pre-set value, no more input is allowed. 
Over zero processing 
When the valve breaks down, it does not affect normal measurement and over-zero measurement processing. The user card will transmit relevant information to the host or upper computer accordingly. 
Pulse sampling moisture-proof 
When the sampling circuit board and the sampling line become moist, signal input and output are still normal without data loss and increase in power consumption. 
Self-testing function 
The meter can perform self-testing to detect engine failure, storage device mistakes, wrong card, wrong write-back, etc. 
Routine Cycle Check 
The meter will begin cycle check of up to 10 times once in every 5 minutes when the valve is shut down due to attack.  It will resume to normal status when the attack stops.
Usage
Functions
 
Data Recycle  
When meter is damaged and needs replacement, the transfer card into the broken meter to read and retrieve data. The data will be transferred to the new meter when the data transfer card is ed into the it
Initialization 
Insert the initiating card to clear all the information inside the meter and set all the parameters. 
Inspection card 
Use the inspection card to check the system when the meter runs abnormally. 
Card replacement 
Replacement card is available when user loses the user card. 
Incremental Water Rate
The user card can register freezed water volume, and count the incremental water consumed. 
 
Parameters 
1)        Accuracy: Class B
2)        Operation working pressure :1.0MPa  
3)        Pressure loss: <= 0.1 MPa  
4)        Working voltage: DC3.6V±0.6V  
5)        Static current:: <= 20 uA  
6)        Operating current: <40mA (temperature 15 ℃ ~ 35 ℃) 
7)        Controller precision: <= 0.1%  
8)        Controller’s reliability (MTBF): >= 2000h  
9)        Durability performance:: socket >100,000 times, electrically controlled valve >10,000 times 
10)    Movement range of electro-mechanic driven pilot valve: 0.05 Mpa ~ 1.0 Mpa  
11)    Water temperature
a)        Cold water meter: 0.1 ℃ ~ 40 ℃
b)        Hot water meter: 5 ℃ ~ 90 ℃

Service Process

Service Guarantee

  • Free Service Charge

    ECVV doesn't charge any service fee to Buyers for buying this product.

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  • Product Quality Commitment

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  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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