The DL-01 Datalogger is a high-integration, premium data logging device specifically designed for rainfall monitoring stations, featuring:
- Triple-core microcontroller architecture including two main cores and one ultra-low-power core, enabling multitasking performance with optimized energy consumption
- Full datalogger standards including high-accuracy independent RTC (Real-time clock) and external SD card for data backup
- Comprehensive sensor interfaces such as Modbus RTU RS485, analog 4–20mA, 0–10V, high-speed DI port, and relay control output
- Automatic relay / alarm light activation when measured values exceed preset thresholds
- Built-in WiFi and GSM/2G/4G LTE communication
- Simple configuration of logger, sensor, and connection parameters via WiFi AP
- Automatic data retransmission when connection is interrupted or retrieval from SD card backup
- Integrated charging management and battery system
- Low power consumption with extended operational lifetime
| CONTENT |
SPECIFICATIONS |
| Microcontroller |
01 Dual Core 32bit 240MHz and 01 Ultralow Core, 448KB ROM, 520KB SRAM, 16 KB SRAM RTC, 16MB FLASH |
| External memory |
SD card 32GB |
| Real-time clock |
Independent high-precision RTC with external backup battery |
| Communication |
GSM/2G/4GLTE: 01 SIM (compatible with SIM cards from all mobile network operators currently available in Vietnam)
Wifi: 802.11 b/g/n/e/ with data rate 10/100Mbps
Includes external antenna for GSM / 2G / 3G / 4G communication, suitable for weak signal conditions.
|
| Interfaces |
- 01 Digital Input (DI)
- 01 Modbus RS485/RS232 port
- 01 Analog Input (4–20mA, 0–5V / SDI-12, 0–10V)
- 01 ON/OFF control output
|
| Configuration & data management |
- Transmission protocols: FTP, TCP/UDP IP, HTTP, MQTT
- Data formats:: ASCII, JSON/CSV/TXT File
- Local configuration via WiFi AP:
- Logger operating mode and transmission interval
- Sensor interface configuration
- Network and transmission protocol setup
- Local firmware upload
- Sensor reading and data transmission interval adjustable from 1 to 60 minutes
- Automatic data upload to server after connection recovery (offline data buffering)
- Remote parameter configuration and OTA firmware update via platform (optional)
|
| Power supply & station consumption |
- 2 Lithium-ion batteries 3.7VDC / 6.8Ah
- Built-in charging controller
- DC 7–28VDC, minimum 0.5A or recommended 12VDC solar panel (6–12W)
- Average total station power consumption: 20mW (Rainfall measurement interval: 5 minutes)
|
| Operating conditions |
Temperature: -10℃ to +80℃
Humidity: 0–100% RH
|
| Enclosure |
- High-grade aluminum housing
- Lightweight, heat resistant, and corrosion resistant
|
| Independent monitoring circuit |
- Independent system watchdog circuit (MCU, SIM)
- Automatic reset in case of system freeze
|
| Protection |
- e-fuse protection against over-voltage, under-voltage, overload, and over-current
- Internal temperature monitoring of datalogger board
- Anti-interference protection for PCB, power supply, and I/O ports
|
| Accessories |
High-quality plastic protective enclosure |
| Installation method |
Mounting bracket
|
Maximum measurement rate (expandable)
|
10Hz
|
