Description
Features
- Supports 2-channel switch value input and 2-channel relay output. Modbus RTU protocol data processing.
- Use 433MHz frequency for wireless data remote transmission.
- 4 working modes: wireless control acquisition mode, wireless follow-up transmission mode, wireless follow-up reception mode, and configuration mode. Select by DIP switch.
- RESET touch reset button. Press and hold for 5s in wireless control acquisition mode, the Modbus address is restored to the default address 01.
- Built-in efficient watchdog with high reliability and stability.
- Power supply has good functions of preventing over-current, over-voltage, and reverse connection.
Note: Before purchasing, please confirm that the frequency band used by the device complies with local laws and regulations.
Specification
| Model | ATO-E820-DTU (2I2-433L) | ATO-E830-DTU (2R2-433L) |
| Acquisition Range | 4-20mA | Switch Value/Digital Value |
| Acquisition Channels | 2-channel | 2-channel |
| Transmission Distance | 8km | 8km |
| RF Specifications | ||
| Standard Frequency | 433MHz | 426MHz |
| TX Power | 1W | 1W |
| Hardware Specifications | ||
| Operation Temperature | -20℃~+70℃ | -40℃~+70℃ |
| Storage Temperature | -40℃~+85℃ | -40℃~+85℃ |
| Operation Humidity | 5%~95% | |
| Storage Humidity | 1%~95% | |
| Operation Voltage | 8V~28V | |
| Current Collecting Range | 0mA~20mA | – |
| Current Output Range | 0mA~20mA | – |
| Relay Output | – | 5A 30VDC/5A 250VAC |
| Accuracy | 0.2% | |
| Data Interface | RS485: 9600bps | |
| Size (H*W*D) | 120mm*105mm*25mm | |
| Certification | CE, CCC | |
| Soft Specifications | ||
| Operation Mode | Following TX, Following RX, Controlling/Collecting, Configuration | |
| Configuration Command | Modbus RTU | |
| Download Attachments | E820-DTU User Manual |
Dimension and Interface Description (Unit: mm)
Tips: What is data transfer unit (DTU) ?
Data transfer unit (DTU) is a wireless terminal device, it is used to convert serial data into IP data or convert IP data into serial data. It is transmitted through wireless communication network. DTU is widely used in industry, meteorology, hydrology and water conservancy, geology and other industries.
Data transfer unit hardware components mainly include CPU control module, wireless communication module and power module. Its advantages include rapid and flexible networking, short construction period, low cost, wide network coverage, good security and confidentiality performance, link support always online and low user cost, etc.
Reviews
There are no reviews yet.