DN25 Prepaid Water Meter Digital Apartment R100

 

 

Secure Payment System: STS meters employ robust encryption and authentication protocols to ensure secure transactions, protecting both consumers and utility providers against fraud and tampering.

 

Remote Monitoring and Control: Utilities can remotely monitor water usage, adjust tariff rates, and disconnect or reconnect service as needed, enhancing operational flexibility and responsiveness.

 

Flexible Tariff Structures: STS meters support various tariff structures, allowing utilities to implement tiered pricing, time-of-use rates, or other billing models to incentivize water conservation.

 

User-Friendly Interface: Consumers can easily monitor their water usage, check account balances, and recharge their meters via user-friendly interfaces such as mobile apps or SMS.

 

STS prepaid water meters offer a reliable, cost-effective solution for improving water management efficiency, reducing non-revenue water, and promoting sustainable usage practices. With their proven track record of success in diverse environments worldwide, STS meters represent a valuable investment for utilities seeking to modernize their infrastructure and meet the challenges of the 21st century water sector.

 

 

1.Ladder water prices can be set (not less than 10 steps), can store 50 TIDs for easy query,

2.Monthly water data can be stored and recorded for 10 years, has holiday water, overdraft, insufficient balance alarms, valve control, Token code can reset the water meter, etc. Function;

3.CIU uses LoRa wireless to issue Token codes, and the communication distance in residential areas is not less than 300 meters;

4.CIU and user STS water meters can be paired one-to-one, or the pairing can be changed;

5.LCD function display facilitates users to read meter data and recharge information.

6.Independent battery compartment, the battery is easy to replace

7.Mechanical and electrical separation design makes after-sales service more convenient.

 

 

Q3: 2.5m³

Turndown ratio: R100

Accuracy level: Class2

Temperature grade: T50

Pressure level: PN16

Pressure loss level: Δp63

Protection level: IP68

Electromagnetic environment level: E1

Installation environment level: O

Installation direction: H

Battery life: ≥ 6 years (26500 batteries)

 

 

1.Working frequency: 868MHz frequency band, can float up and down ±10MHz.

2. Modulation method: LoRa linear frequency modulation.

3. Power consumption: static average current <30uA, maximum power consumption during meter reading <2mA (use ER26500 lithium sub-ion battery to read the meter once a day and have a service life of not less than 6 years).

4. Power supply voltage: 3.0V~3.6V.

5. LoRa communication distance: no less than 1000 meters transmission distance (in open areas), and communication distance in residential areas no less than 300 meters.

6. Operating temperature of electrical parts: -40℃~85℃.

7. Working humidity of electrical parts: 10% ~ 90%.

8. Valve switch timeout waiting: 20 seconds.

9. Valve blocking current: ≥260mA.

10. The maximum instantaneous drive current of the valve: >800mA.

11. Pulse sampling period: 0.25 seconds.

 

 

 

 

 

1. Infrared communication: Equipped with an infrared transceiver unit, use an infrared serial port tool to read and write the meter.

2. Handheld communication: The dedicated watch mobile phone software cooperates with the LoRa antenna module to read and write the watch.

3. STS CIU communication:

    3.1. The remote control sends short code instructions to read and write the meter.

    3.2. Send the token code and receive the return information.

4. LoRa concentrator communication: issue token codes to the meters through the server, and perform read and write data operations on the designated meters.

 

 

1. Valve status indication: displays the open and closed status of the valve.

2. Battery power indication: Use percentage to indicate battery power.

3. Communication indication: When the water meter is in communication status, it indicates that it is connected.

4. Anti-tamper indication: The icon lights up when the anti-tamper alarm is triggered.

6. Magnetic attack indication: The icon lights up when a magnetic attack alarm is triggered.

7. Low balance indication: When the water consumption is greater than the set balance, the icon lights up.

8. There are corresponding fault code indications when input errors, magnetic attacks, tampering, and low voltage alarms occur.

9. The liquid crystal displays the current status of the water meter in real time (communicating, connecting status, waiting status, and constant display status)

10. Constantly displayed status: display of table serial number, remaining water volume, last recharge volume, total purchase volume, and accumulated volume.

11. When entering the token code, such as water meter reception or rejection, secret key expiration, input timeout, used, overflow, etc., all display in compliance with STS531-4, STS531-5-0, STS531-6-1-07 certification document pair display content requirements.

12. Able to read and display water meter frequency, network ID, KEN (key expiration number), KT (key type), EA (decryption algorithm), T1 (rate number), version number, date, and time.

 

 

 

1. Non-magnetic/magnetoresistive metering, use commands to switch.

2. The number of steps that can be set is no less than 10.

3. Through communication tools, the meter can be initialized (reset the water meter), and the meter serial number, meter base, working frequency, network ID, recharge water volume, step water volume, overdraft amount, alarm information, hoarding amount, and holidays can be water use, flow information, valves

Gate control, pulse equivalent, date rollover, manufacturing or repairing TID for read and write operations.

4. Monthly water consumption data (date, cumulative usage, alarm information) can be stored for 10 years.

5. Sound alarm function: The meter emits an alarm sound once the alarm is triggered.

6. The watch has a reserved upgrade port for firmware upgrades.

 

 

1. Battery voltage alarm: The low-voltage alarm function is triggered when the voltage is lower than 3V.

2. Magnetic attack alarm: When the water meter senses that the magnetic induction intensity has affected the collection and measurement, a magnetic attack alarm is triggered.

3. Anti-disassembly alarm: Adopts magnetic alarm function. When disassembly is encountered, changes in the magnetic field are detected and the alarm function is triggered.

4. Insufficient balance alarm: When the water consumption is greater than the set balance, the alarm function is triggered offline.

5. Overdraft amount alarm: The alarm function is triggered when the water consumption is greater than the set overdraft amount.

6. Flow alarm: Automatically send an alarm when continuous water consumption exceeds 24 hours; alarm when the maximum daily usage exceeds the set usage; alarm when there is continuous reverse flow.

 

 

 

 

 

 

 

 

 

 

 

 

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