LoRaWAN Smart Water Meter
The Sindcon LoRaWAN Smart Water Meter Mercury LoRa series LXSGF model is an impeller (Turbine) water meter with a built-in valve and dry type register. It is designed for residential applications with sizes ranging from Dn15 to Dn25, and is intended for metering cold drinking water. The LXSGF model consists of a mechanical water meter, an electric ball valve, and an intelligent unit (IU) powered by ARM Cortext-M4 core integrated in LoRa SoC (System on Chip) and a built-in lithium battery. With the pre-equipped LorRa SoC, the analogue reading of the water meter can be digitalised and wirelessly transmitted to the meter data collection system. Taking advantage of the LoRaWAN technology, it significantly accelerates the meter reading speed and avoids the risk of visual reading mistakes. It also greatly improves meter readers’ safety and customer satisfaction by avoiding intrusion into private facilities.
Features and Specifications
- LoRa SoC (STM32WLE5XX) integrating ARM Cortex-M4 Core as processor
- 3.6V Built-in Li-SOCI2 Battery
- Battery Life: Up to 10 years
- Batter is independently packaged and convenient to replace
- Dual sensors and special algorithm to ensure accuracy
- Transmission Position: 10L/100L
- Sindcon’s unique primary (LiSOCI2) battery management technology not only provides precision usage calculation and load leakage detection but also keeps the battery in health condition across battery life
Benefits
SoC Based LoRa Technology
Valve Control
IP68, suitable for outdoor installation
LoRA Radio Parameters
| Communication Protocol | LoRaWAN |
| LoRa MAC Version | 1.0.3 |
| Device Type | Class A |
| Network Registration Way | OTAA, ABP |
| LoRaWAN Uplink Confirmation | Confirm or Partially Confirm |
| LoRa Chip | STM32WLE5CCU6 |
| MCU | Arm® 32 -bit Cortext®-M4 |
| Memory | 256KB Flash; 64KB RAM |
| ISM Bands | AS923, AU915, EU868 |
| TX Power | Up to 22dBm |
| Uplink Channels | 8 settable channels with bandwidth of 125kHz |
| RX Sensitivity | Down to -125dBm*BW = 125 kHz, Sf = 7 |
| Spreading Factor | SF7 ~ SF10 (adaptive) |
| LBT (Listen before Talk) | Yes |
| Report Interal | Configurable via Downlink Commands |
| Data Cach when LoRa Network Interrupts | Yes |
| Data Logger in Local Device | Optional |
| Communication Distance | 3km to 10km (Eyesight distance in open space) |
| Near Field Communication Way | Infrared Tools (with Sindcon Mobile APP) |
| Built-In Valve/Relay | Valve |
Electrical Parameters
| Power Supply | 36.V (ER26500 8500mAh) |
| Standby Current | < 40uA |
| Active Current | < 55mA |
| TX Current | < 126mA@22dBm |
| Battery Life | Up to 10 years |
| Battery Usage Monitoring | Accurate Coulomb Measurement |
| Battery Undervoltage Warning | Yes |
| MCU Temperature Monitoring | Yes |
| CPU Working Temperature | -20°C ~ +85°C |
| Storage Temperature | =10°C ~ +60°C |
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