3/4'' Residential Sim Card Smart Prepaid Water Meter With Shut Off

PREPAID SYSTEM INTRODUCTION

Overviews

The IC Card series water meter is a kind of prepaid and smart water meter. It’s designed and manufactured by our company and famous design companies both domestic and aboard according to the international standard.

Advantage of the System

·OEM, language display and currency unit display can be customized, and company name can be added to the software.
·The data will be saved automatically after exiting the system.
·Simple management and user card making, easy to query consumption records.
·Invoice printing, providing payment voucher to users in the most common form in the local area.

Brief Introduction

The prepaid water meter have mechanical and electronic readings. It is used to control users overspend by prepaying with an IC card. Pay in advance and then use water get rid of the inconvenience of on-site meter reading and charging.

Product Features

Product features of IC card water meter

It adopts non-contact card and fully sealed design, which is waterproof, moisture-proof and attack-proof;

Prepaid meter design, support step pricing;

Support user card recharge price adjustment, support setting card unified price adjustment;

Using low power consumption detection technology, the battery life is more than 8 years;

It has alarm functions such as valve abnormality, card swiping abnormality, and battery undervoltage;

It has regular maintenance functions such as valves, batteries, and interference elimination;

It has the function of automatic asset binding, and the table number is stored in the user card after the user swipes the card;

Data storage adopts dynamic encryption technology, and the system and meters are automatically checked and corrected to ensure data safety and reliability;

Support monthly freezing and daily freezing functions, and the freezing cycle can be set;

It has functions such as anti-hoarding, overdraft water use, and insufficient balance alarm;

Advantages of prepaid IC card water meters

1. Safe and convenient to use

The management system of the water supply management department records all the data of the user in detail. When necessary, the user can query and print his own water purchase record at any time. In addition, if the user loses or damages the card, he does not have to worry, he can go to the business office where he opened the account for the first time to replace the card.

2. Effectively solve the problem of charging difficulties

The unique prepayment function of the IC card prepaid water meter determines the form of water consumption after the user pays first. Therefore, it effectively solves the problem that the water supply department is difficult to charge, and ensures the normal operation of the water supply unit.

Added the billing function for excess water use. Progressive price increases for water beyond the plan have been implemented in some cities, and IC cards have also added this new function with the development of the times. If the specified water consumption index is exceeded, the water meter will automatically adjust the price to the charging state of the price increase. 

Performance characteristics of prepaid IC card water meter

1. IC card prepaid water meters use IC cards, which can easily realize water purchase, water consumption and meter reading and testing; logic encryption IC cards are used, data adopts dynamic encryption technology, one meter and one card, high security, long service life, and reliability High, in line with ISO/IEC7816 series of international standards;

2. The IC card prepaid water meter adopts a streamlined side card design, and the card slot is equipped with a baffle, which can effectively prevent water droplets and water vapor from corroding the circuit part; the gold-plated IC card chip can effectively prevent corrosion and moisture. Some card identification technologies, for non-IC and other foreign objects inserted, the computer part will not be triggered;

3. The stainless steel ball valve has the characteristics of high hardness and is not easy to wear. The valve adopts multi-stage electric drive, the switching speed is fast, the power consumption is low, and it can be desensitized once a month at regular intervals; the built-in replaceable high-energy lithium battery is adopted, the battery capacity is large, and the power supply Excellent performance, high safety, the battery adopts plug-in installation, easy to replace;

4. The IC card prepaid water meter has a complete self-inspection function, which can buzz and display low battery voltage, card error, disconnection and other faults;

5. The IC card prepaid water meter adopts two-level alarm function, which reminds users to purchase water in time through buzzer alarm, display alarm, and valve close alarm;

Main Technical Data

(Ⅰ) Technical Specifications

(Ⅱ) Relative Error

·Maximum permissible error between Q1 and Q2(excluded) is ±5% in flow low area.
·When the water temperature is not higher than 30℃, maximum permissible error between Q2 and Q4(included) is ±2% in flow high area.
·When the water temperature is higher than 30℃, maximum permissible error between Q2 and Q4(included) is ±3% in flow high area.

(Ⅲ) Working Temperature: cold water (0.1~30)℃
(Ⅳ) Operating Ambient temperature: (5~55)℃
(Ⅴ) Storage Environmental temperature: (-5~55)℃

Fault Handling Instructions

The principle of prepaid IC card water meter

The appearance of IC card water meters is basically similar to that of ordinary water meters, and the installation process is basically the same. The use of the IC card water meter is very simple. From the user's point of view, just insert the IC card into the water meter. The working process of the IC card water meter is generally as follows: Insert the IC card containing the amount into the IC card reader in the water meter. After the computer module recognizes and downloads the amount, the valve opens and the user can use water normally. When the user uses water, the water volume acquisition device starts to collect the water consumption, and converts the required electronic signal to the microcomputer module for metering, and displays it on the LCD display module. When the amount of water used by the user drops to a certain value, the microcomputer module gives a sound alarm, prompting the user to pay a fee to buy water with the card. If the amount of water is exceeded, the microcomputer module will automatically close the electric control valve and cut off the water supply. Until the user inserts the paid IC card and reopens the valve for water supply.

Outline Dimensional Drawing

Smart functions supported by IC card water meters

1. Automatic switch: recharge the water to open the valve, close the valve without value, and automatically switch the valve; pre-collect the water fee, no need to enter the household to read the meter and charge.

2. Encryption security: one watch (one household) one card, automatically generate and identify the IC card password, one-to-one correspondence between the table and the card, not interchangeable.

3. Anti-magnetic interference: When receiving magnetic interference, the valve will automatically close, and the valve will automatically open after inserting the card.

4. Early warning: When the remaining water volume is 2m3 (set according to the user's requirements), the valve will close as a reminder, reminding the user to purchase water as soon as possible; at this time, the valve can be opened to continue to use water by swiping the card.

5. Low battery warning: When the battery is low, the LCD screen will show that the battery is low, prompting to replace the battery in time.

6. Low power closing valve: If the battery is not replaced in time after the low power warning, the valve will be closed, and the valve can only be opened to supply water after the battery is replaced.

7. Liquid crystal display: The LCD screen displays information such as cumulative consumption, remaining water volume, valve switch, power status, and fault codes.

8. Inquiry display: The display is normally closed, and the user can display the remaining water volume and cumulative consumption by swiping the card.

9. Anti-clogging function: the control program automatically cleans the valve to maintain the flexibility of the valve.

10. Data write-back: the user card can write back the data of the water meter, and can read the working status of the water meter in the management system, which is convenient for management.

11. Management card function: query card and transfer card are used by management personnel for query and maintenance.

12. Meter reading function: Far EasTone IC card smart meters can respond to the meter reading instructions of external equipment, and transmit the data in the meter to external equipment.

13. Time calibration function: the remote IC card smart instrument can respond to the time calibration instructions of external devices, and adjust and modify the current calendar and current clock in the watch.

14. Meter number setting function: Remote IC card intelligent instrument can respond to the meter number setting instruction of the external device, allowing the external device to set the meter number to the meter.

15. Initialization function: The remote IC card intelligent instrument can respond to the initialization instruction of the external device, and set the relevant data in the table to the predetermined value.

16. Overdraft function: The remote IC card smart meter has an overdraft function. When the remaining value is used up, it can automatically enter the overdraft state. A fee is required to restore access. If the overdraft limit is set to 0, it means that the remote IC card smart meter has no overdraft function. When the remaining value is 0, the remote IC card smart meter will automatically cut off the user's water use.

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