Features　

· Data reporting: There are two ways to report data. Magnetic triggering to report data: Magnet triggers the Hall components of the meter module, and the trigger time must be greater than 2S; Timing active reporting: Automatically assign reporting time slices according to the Device EUI of the metering module. Data is reported every 24 hours.

· Measurement: support ultrasonic meter measurement.

· Power management: real-time detection and reporting of the voltage of the meter module transmitting state.

· LCD screen display: After the magnetic trigger meter module, the LCD screen will display the real-time time, forward flow, reverse flow, instantaneous flow rate, empty pipe alarm, low voltage alarm, and abnormal alarm (including abnormal temperature and abnormal storage).

· Monthly and yearly frozen data storage: The meter module supports the storage of monthly frozen data for the last 128 months and annual frozen data for 10 years after time calibration. The stored frozen data can be queried through the cloud platform.

· Setting parameters: support wireless near and far field parameter setting, far field parameter setting is realized through cloud platform, near field parameter setting is realized through production setting tool. There are two communication modes for near-field parameter setting, namely wireless communication mode and infrared communication mode.

· Upgrading application: support infrared way to upgrade meter module application.

Performance parameters

uCommunication distance: 5 km in urban environment, 10 km in rural environment  

uFrequency band: CN470, EU868, RU864, IN865, AS923  

uWorking mode: ClassA/ClassB/ClassC 

uOperating temperature: -20 ~ 70℃  

uWorking bandwidth: 125kHz  

uSensitivity: < -136dbm  

uReceiving current: ≤10mA  

uEmission current: ≤130mA  

uDormant current: ≤8uA  

uAverage operating current: ≤20uA  

uOperating voltage: +3.1V ~ 4.1V  

uBattery: ER34615 lithium battery, 8 years service life  

Technical parameters of ultrasonic water meter

uAccuracy level: Grade 2  

uNominal diameter: DN15-ND25  

uRange ratio: R250/R400  

uTemperature class: T50  

uClimate and mechanical environment: Grade O  

uInstallation distance: U0D0  

uEmc level: E2  

uWorking environment: -25℃ ~ 55℃, ≤100%RH  

uProtection level: IP68  

uMaximum working pressure: 1.6MPa