- Industrial Multi-Point Monitoring
- Long-Distance
- High Reliability
The Smart Grain Temperature Acquisition Unit is an industrial-grade device designed by Langfang Zhaosui (ZSTC) for large-scale grain storage monitoring. Built for multi-point data collection, long-distance transmission, and high stability, this unit is widely used in flat warehouses, steel silos, grain bins, feed plants, and other agricultural storage environments that require precise and reliable temperature monitoring.
High-Stability Multi-Point Collection
The Smart Grain Temperature Acquisition Unit supports four independent temperature channels, with each channel capable of reading up to 255 digital sensors. The entire system can manage up to 800 temperature points, making it suitable for large grain depots and multi-warehouse monitoring networks. It is compatible with mainstream single-bus chips such as DS18B20, CT1820, QT18B20, GX18B20, MY18B20, HK1020, and RT18B20.
Long-Distance Transmission Capability
To meet the long-distance requirements of large grain storage facilities, the unit features a reinforced bus-driving circuit. It can reliably operate over 1600 meters of extension cable for DS18B20-type sensors and up to 1200 meters for CT1820 sensors. Both three-wire powered mode and two-wire parasitic mode are supported, ensuring installation flexibility.
Industrial-Grade Communication Design
The device includes dual RS-485 communication interfaces, functioning as independent MODBUS master stations. The primary RS-485 port can also be configured as a TCP communication port. Supported protocols include MODBUS-RTU, MODBUS-TCP, and custom formats, enabling seamless connection to PLCs, SCADA systems, HMIs, monitoring software, and cloud platforms.
Reliable Operation in Harsh Environments
The Smart Grain Temperature Acquisition Unit is built with multiple isolation protections, including optical RS-485 isolation, power isolation, and software-level channel protection. These features ensure stable operation near motors, fans, frequency converters, and high-interference electrical equipment found in grain processing facilities.
Conclusion
With its strong long-distance performance, high sensor capacity, and industrial-grade reliability, the Smart Grain Temperature Acquisition Unit is an excellent core device for modern grain-temperature monitoring systems and agricultural storage safety management.
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