Name: Prepaid Water Meter Mould Token Water Met
Brand: S.H.Meters
SKU: 238783799

Description

Products Description

product-1200-738

The meter supports the STS prepaid protocol. Tokens can be issued to the STS meter through the CIU, infrared unit, or meter keyboard to realize prepaid recharge, switch valve, and other functions. At the same time, the concentrator supports LORA wireless automatic communication between the meters during meter readings. Networking function, the network level can reach up to level 3, which greatly improves the receiving sensitivity.

The water meter has the characteristics of accurate billing, convenient use, and efficient management.

Product parameter

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)

overall dimension

product-1200-1147

meter electrical parameters

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 10 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.

Working principle

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.

product-1200-732